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Патент USA US2040020

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' May 5, 1936.
2,040,020
W. B. PARKER
CARBURETOR
Filed July 19, 1934
4 Sheets-Sheet 1
132'
75
32
a
B. Parker;
May 5, 1936.
2,040,020
W. B. PARKER
CARBUHETOR
Filed July‘l9, 1934
4 Sheets-Sheet 2
,g
.x
May 5, 1936.
w. a. PARKER
‘
2,040,020
CARBURETOR
Filed July 19, 1934
27
4 Sheets-Sheet 3
May 5, 1936.
w_ B, PARKER
‘
2,040,020
CARBUR-ETOR
Filed July 19, 1934
4 Sheets-Sheet 4
2,040,020
Patented May 5, 1936
UNITED STATES PATENT OFFICE
‘2,040,020
CARBURETOR
William B. Parker, Manchester, Tenn.
Application July 19, 1934, Serial No. 736,077
14 Claims.
My invention relates to improvements in car
buretors for internal combustion engines.
(Cl. 261-49) ,
bodying a still further modi?ed form of the in
vention,
Figure 9 is a perspective view of a portion of
An important object of ' the invention is to
provide a carburetor which will effect an economy’ '_ the carburetor employed in connection with a i
_ separate carburetor for supplying moisture to'the
5 in the use of fuel.
A further object of the invention is to provide
a carburetor which will produce an improved ex
plosive charge, whereby greater povger is obtained.
A further object of the inventiomis to provide
1;‘) a carburetor so constructed that the automatic
vacuum tank or fuel-pump is eliminated and the
liquid fuel properly fed to the carburetor.
A further object of the invention is to provide
means for supplying moisture or water‘ vapor
15 to the explosive charge.
-
A further object of the invention is to provide
a device for use in connection with a carburetor
for supplying moisture or water vapor to the ex-_
plosive charge.
39
-
.
A further object of the invention is to provide
a carburetor having means to supply a reduced
charge, and, . v
, Figure 10 is a plan view of the device shown
in Figure 9.
Attention being called ?rst to Figures 1 to 8 _
inclusive, the numeral l5 designates the main l0
casing or pipe, which may be vertically arranged, , ’
as the present carburetor'is illustrated as a down
draft carburetor, while the invention is not neces
sarily restricted to the down-draft feature. The
vertical casing l5 has its upper end open and ‘1 CA
its lower end is provided with a coupling ?ange
[6. The numeral l'l designates the intake mani
fold of an internal combustion engine having a
coupling ?ange l8, arranged opposite the ?ange
16, for a purpose to be described. Mounted with- r3 0
in the upper portion of the main air inlet pipe [5
explosive charge to cylinders of the engine, when _ is a throttle valve I9, which turns in the direction '
of, the arrow, Figure 2, when opening. This
throttle valve is mounted upon a transverse shaft
20, extending to the exterior of the casing l5 3 Ll
—'~’ the speed, and in proportion to suchvincrease in and having a lever 2| attached thereto, to turn
speed.
_
'
the shaft. The lever 2| has an adjustable stop
A further object of the invention is to provide element or_ screw 22, carried thereby, to engage
a carburetor of the above mentioned character with a stop lug 23. The stop element 22 may be
the engine is idling, and an increased amount
_ of the explosive charge,‘ as the engine increases
n
which is of simple construction, strong, durable,
O9 and is not l‘able to derangement.
Other
‘ - '
jects and advantages of the invention
will be apparent during the course of the follow
adjusted so that there is a slight passage between '30
the throttle valve l9 and the inner wall of the
main air inlet pipe l5, when the throttle valve
is in the closed position. The lever 2| also has
an adjustable stop element or screw 24 carried
In the accompanying drawings forming a part thereby, and arranged near its opposite end, and 35
5 of this application and in which like numerals ~ this stop element or screw engages the same stop
ing description.
‘
,
-
are employed to designate like parts throughout
the vsame,
_
'
Figure 1 is a perspective view of a carburetor
embodying my invention,
-
Figure 2 is a longitudinal section taken sub
lug 23 to limit the opening movement of the
throttle valve I9 so that it does not assume a
completely vertical position when shifted toward
such open position, but will be slightly inclined, 40
as shown by dotted lines in Figure 2, thereby pro
stantially on line 2--2 of Figure 1,
'
_ ducingv a slight choking e?ect when shifted to. the ‘
Figure 3 is a transverse section taken on line ’ extreme open position. The lever 2| is connected
-
45
_3—3 of Figure 1,
with, the gas lever or'accelerator in the auto
v
Figure 4 is a' similar view taken on line 4-4
of Figure 1,
'
.
mobile, as is the common practice.
.
p,
_ The numeral 25 designates a block constituting
-
Figure 5 is a longitudinal section taken ‘on line ‘ the body portion of the carburetor, and this. block
a Figure 6 is a, perspective view of the draft actu
25 is arranged between the coupling ?anges l6
and i8 and is clamped thereto by bolts 26 or the
like, with suitable packing or gaskets 21 between 50
these parts. The block 25 is provided with a
5;, - Figure 8 is a similar view of a carburetor em
block 25 is provided, adjacent to the main open- 55
5—5.oi Figure 1,
.
l
_
> Figure 5a is a transverse section taken on line
50
5'~——5" of Figure 2.
_
v
‘
.
.main vertical opening 28, in substantial align
ated element and valve'operated thereby,
Figure 7 is a perspective view of a ‘carburetor \ment with the bores of the pipe [5 and the intake‘ I
end of the intake manifold II, as shown. The '
embodying a modi?ed form of the invention,
9,040,020
ing or passage 28, with cylindrical recesses 29,
Figure 10, to receive the ends of a cylindrical shaft
38. This shaft receives thereon a cylindrical
sleeve 3|, having transverse ports 32 and 33, which ,
also extend through the shaft 30. The sleeve 3|
is clamped or locked upon the shaft 30 by a set.
screw 34 or the like. The sleeve 3| and'the por
tion of the shaft 30 upon which it is mounted
constitute a pivoted valve body 3|’. Rigidly at
10 tached to the sleeve 3| and preferably formed in
tegral therewith, is a draft actuated element or
valve 35, which is adapted to substantially cover
the main opening or passage 28 when in the. up
per or closed position and its free end portion
15 will then engage beneath a shoulder 38. The
function of the shoulder is to form a tighter joint‘
with the draft actuated element or valve 35 and
to limit its upward movement, particularly against
back-?ring action.
_
block 4|, as shown at 8|. A pin 82 is rigidly at
tached to the lower closed end of this bail, and
this pin is screw-threaded for receiving a clamp
ing nut 83, acting against a hollow washer 84,
adapted to engage with the bottom of the bulb
or receptacle 58 and hold the same in place. The
recess or chamber 55 is arranged above the bulb
or receptacle 59 and the bottom of this recess or
chamber has a screw-threaded opening for re
ceiving the upper screw-threaded end 85 of a
tube 68, which depends below the block 4| and
enters the bulb or receptacle 58 and preferably
terminates near the bottom of the bulb or recep
tacle, and should atleast terminate at an eleva
tion beneath the minimum level of the liquid fuel 15
within the bulbv or receptacle 58. At its upper
end the tube 88 projects into the recess or cham
ber 55 and‘ is provided with a valve seat 61, for
engagement with an upwardly opening check
The block 25 is provided with a longitudinally
valve 68, preferably formed of fibrous material,
extending charge supply part 31, which leads to
such as cork, ?ber or the like, although the same
may be formed of metal. This check valve is
urged downwardly toward its seat by a com
the valve body 3|’. When the valve body is in the
closed position, with the draft actuated element
35 closed, such valve body covers the outlet end
25 of the port 31, but as the element 35 is swung
downwardly and the valve body 3|’ turned with
it, transverse port 32 is brought into communi
cation with the port 31, and the mixture of air
and gas will be supplied into the passage 28, above
30 the draft actuated element 35. The port 31 has
its rear end portion enlarged, as shown at 38,
and this enlarged portion is internally threaded
to receive a tubular nipple 39, having a reduced
bore 40, to regulate the entrance of air into the
port 31. If desired, a nipple 39, having a differ
ent sized bore 48, could be substituted to admit
more or less air, as found desirable.
The numeral
pressible coil spring 69, engagedby'an adjustable
screw-threaded plug 18, operating with a screw
threaded opening 1| and having a washer 12 ar
ranged beneath the same. The block 4| is fur
ther provided with a rear longitudinal port 13,
the forward end of which turns downwardly, as
shown at 14, and passes through the bottom wall .
of the recess 51, and hence leads into the top of
the bulb or receptacle 59. The liquid fuel, such
as gasoline is supplied to the port 13 through a
coupling 15 having connection with a pipe (not
shown) which leads into the gasoline tank of
the automobile. In order that my carburetor will
not flood, it is necessary that the carburetor be
4| designates an auxiliary block, the forward end
of which is arranged beneath and adjacent to the
40 rear end of the block 25 and is provided with a
arranged at an elevation above the gasoline tank.
The gasoline is withdrawn from the bulb or recep
tacle 59 by the suction within the intake mani
recess or chamber 42. The block 4| is rigidly
attache-i to the block 25 by means of a screw 43,
provided with a washer 44,‘ and a washer 48 is
fold H, such gasoline passing through the port
54, discharging at the needle valve 5| and being
arranged between the blocks 4| and 25, as shown.
45 The screw 43 has screw-threaded engagement
within the opening 41 and the upper end of the
screw 43 terminates substantially centrally within
the enlarged bore 38. The screw 43 has a portion
thereof tubular, which is afforded by a port 48
50 formed therein, which extends through the upper
end of the screw and laterally through the same.
substantially centrally ofthe recess or chamber ‘
42. The rear end ofth'e block 25 is provided
with a screw-threaded boss 49, receiving the
55 screw-threaded portion 58 of an adjustable
sprayed or atomized at this point and mixed with
the air passing through the nipple 48 and then
passing through the port 31 to the intake mani
fold. As the tube 88 has its intake end beneath
the level of the gasoline within the bulb or recep
tacle 59, this gasoline forms a seal with the tube ‘
88, and as the level of the gasoline descends, it
creates a partial vacuum at the top‘of the recep 50
tacle or bulb 59, drawing in. gasoline from the
tank through the port 13. The vaporized fuel is
supplied in the. intake manifold when the engine
is speeded up'beyond idling but is not supplied
needle valvev 5|, adapted to project within the
to the‘ intake manifold when the engine is idling,
as the valve body 3|’ then. has its port 32 in the
outlet end of the bore 48 of the tubular element
or screw 43, to regulate the amount-of gasoline
fedinto the enlarged bore 38 and to also atomize
supply theeharge tothe intakemanifold, for driv
60 or spray the same.
The needle valve is held
against accidental displacement by means of a
coil spring 52, surrounding the same, and engag
ing a transverse pin 53, as shown. Leading into
the recess or chamber 42 is a longitudinal port
65 54, formed in the block 4|, and the rearend of
this longitudinal port leads'into a recess’or cham
ber 55, formed in the block 4| and an upstanding
transverse portion~56 thereof. The block 4| is
provided upon its lower face and generally cen
70 trally thereof, with a cylindrical recess 51,.receiv
ing a washer 88, which is engaged by the upper
end of a suction bulb or receptacle 58, preferably
formed of glass. This suction bulb or receptacle‘
is held in place by a ball or U-shaped keeper 68,
75 the upper endsof which are pivoted with the
closed position.
Separate means are provided to ‘
ing the engine while idling. The separate means
includes 9. lug or post 18 having a chamber ‘I1,
Figures 2 and 5', which is in communication with
a tube 18, connected with a coupling 19. ' This
coupling 19, Figure 3, is in communication with"
a recess 88, having a vertical tube 8| leading
into its lower end, and this tube 8| extendsinto
the bulb or receptacle 59 and has its lower end
65
preferably terminated at the same elevation as
The upper end of ,
the tube 8| within the chamber 88 has a valve
seat 82, for engagement with an upwardly open
the lower end of the tube 88.
ing check valve 83, preferably'fo'rmed of fibrous
material, such as cork, ?ber, although the same
may‘ be formed of metal. This check valve is
urged downwardly by a compressible coil spring
84 engaging a plug 85, having screw-threaded
75,
'
3
2,040,020
' engagement within a screw-threaded opening 86.
inthe cylinder I00, is a plunger I03, havingpiv
The function of vthe check valves 68 and 83 is to
prevent the back flow of air into the bulb or re
otal connection with a connecting rod or pitman
ceptacle 59, and hence the breaking of ‘the suc
tion therein. Thus when the gasoline is being
supplied to the intake manifold for high speed,
I04, the lower end of the cylinder I00 being open.
The lower end of the connecting rod I04 is piv
otally connected at I05 with a lever I06, which
the check valve 83 prevents back suction through
the idling gasoline supply means, and when the
gasoline is supplied for idling of the engine, check
10 valve 68 will prevent the back flow of air through
is rigidly mounted upon one end of the shaft
30. A retractile coil spring I0‘! is attached to
the lever I06, to swing the same downwardly and
the opposite end of this spring is attached to a
stationary hook or lug I08. A choke lever I09
the high speed gasoline supplying means. The
chamber 11, Figure 2, has communication with
is pivotally mounted upon the shaft 30, upon
a' port 81, which leads into the main air supply
pipe I5 at a point beneath the throttle valve I9,
ally projecting leaf or extension II 0, arranged
to engage above the lever I06 and forwardly of
its pivot. A rod III is pivotally connected with
the choke lever I09, and extends to the dash
whereby the charge is supplied to the intake mani-v
fold when the throttle valve is closed and the
- engine is idling.
Air is supplied to the chamber
71 through a port 88, Figure 5“, leading into one
end of the chamber TI, and this supply of air is
regulated by an adjustable needle valve 69. The
gasoline entering the chamber ‘I1 is sprayed or
atomized by passing through the nozzle 90, and
then becomes vaporized and mixed with‘ the in
coming air through the port 88, the gaseous mix
ture discharging through the port 81. It should
be noted that the supply of the idling charge is
entirely independent of the rotary valve body 3 I '.
the inner side of the lever I06, and has a later
of the automobile or other convenient point.
When the choke lever I09 is swung rearwardly,
it will depress the lever I06, but the lever I06
may move downwardly without shifting the ~
choke lever.
.
'
The operation of the ?rst or preferred form
> of the carburetor is as follows:
When the engine is not running and is cold,
the throttle valve I9 is closed and the spring I01 5
swings the lever I06 downwardly, and the draft
actuated element 95 is in the lower or opened Means are also provided to supply moisture or ' position, since therev is no suction in the pipe I5
water vapor to the intake manifold. To accom
beneath the closed throttle valve.~ With this ad
plish this, the block 25 is provided in its rear por
ticn with a vertical chamber 9|, and a‘ threaded
tubular coupling 92 engages within the lower
justment of parts, the port 32 is in registration
with port 31, and the port 33 is in registration
with the port 99, and hence-the gaseous charge
end of this chamber and has connection with a
and the moisture may be drawn into the intake
manifold IT. The engine is now cranked and
upon starting will create a suction within the
intake manifold and pipe I5 beneath the closed
throttle valve I9. It is thus seen that the maxi
pipe 93, which leads to a water tank, disposed at
Ll a level below the chamber 9I to prevent ?ooding.
The tubular coupling 92 is provided at its upper
end with an outlet or valve seat 94 for, coaction
with an adjustable needle yalve 95, having screw
mum amount of explosive charge is fed to the.
threaded engagement within a post 96 and ex
intake manifold upon starting. When the en
tending to the exterior of the top of the block 25. gine is cranked, the vaporized fuel is also drawn 40
40
The needle valve 95 may be employed to regulate into the pipe I5'beneath the throttle valve I9
the amount of water supplied into, the chamber through the port 01, and this supply of fuel con
9|, and also to atomize or spray this water, and ,tinues during the idling of the engine. When
may be alsovmanipulated to completely cutoff the suction is created in the pipe l5 beneath the
the supply of water when desired. Air is supplied throttle valve I9 upon the start of the engine the 45
into the rear side of the vertical chamber 9i
plunger I03 rises and overcomes’the action of the
through a rear longitudinal port 91, and the
amount of air may be regulated by a pivoted plate
valve 98, Figure 1. The air entering the cham
ber 9| mixes with the atomized water and be
comes saturated or ladened with the sa
e.
Have
ing c’ mmunication with the forward side of the
spring I01 and thereby closes the draft actuated
element 35, and the engine may now idle 'upon
the fuel supplied .through the port 81. Should
the engine stop after starting, it may be neces
sary to retain the valve body 3|’ and draft ac
tuated element 35 in the opened DQSition for a
shortperiod, to supply an abundance of fuel to
the engine to insure proper running until it has
warmed up su?iciently. This is accomplished
by pulling the chock rod III rearwardly, which
chamber 9| is a longitudinal port 99, extending
through the block 25 and leading to the passage
28, at a point whereby it may be brought into
and out of registration with the transverse bore
33 of the swinging valve body-3|’. ‘When the will swing the'choke lever I09 rearwardlyyand
draft ‘actuated member 35 is in the closed posi
depress lever I06 and hold this lever depressed
tion, the supply of fuel through the port 32 and a until the choke lever I09 is released. The en
GI the supplyvof moisture through the port 33 are, gine being now suitably warmed lip and the
both out o?.
I
choke lever I09 released, plunger I03 and asso
The description thus far given is common to ciated elements will‘ return the valve body 3|’
the three forms ;of the invention shown in Fig
and draft actuated element 35 to ‘the closed po
ures .l to '7 and 8, and also 10.
- '
sition, and the engine will continue -to'idle on
Attention is now called to Figures 1 to 6 inclu
the fuel supplied through the.'port.81. To speed
(35
sive, showing the ?rst or preferred form of the up the engine, the throttle valve I9 is swung to;
invention. In connection with this ?rst or pre
ward the opened position and this will reduce
ferred formof the invention, means are provided the suction in the pipe I5 beneath \the throttle
for turning the valve body 3I ’. This means com - valve, whereby the spring I01 and the down
prises a cylinder I00, having a pipe IOI leading draft of air through the'pipe I5 impinging‘upon
into its upper end, and this pipe leads into the the draft actuated, element 35, will turn the‘
main air supply pipe I5, at a point beneath the valve body 3I' toward the opened position, in op
throttle valve I9. The cylinder I00 is supported position to the suction action upon the top of
by a bracket I02, which may. be rigidly attached the plunger I03. The ports 32 and 33 are now
' to the ?ange I6. Mounted to reciprocate with-v brought into communication with the ports 31
CI)
7
.
7
'
2,040,020
drawn into the intake manifold II, in the pres
ence of the incoming air. As the engine speeds
up, the suction within the pipe I5 beneath the
throttle valve I9, which is now partly or wholly
sition and also turns the valve body 3|’ so that
ports 32 and 33 register with ports 31 and 99, re
spectively. .The engine is now cranked and the
maximum supply of the charge will be drawn
into the cylinders, the throttle valve I9 remain
opened, is transmitted to the top of the plunger
ing closed to afford a rich mixture.
and 99 and the explosive charge and moisture
I03, and the lifting action of this suction on the
plunger I03 is opposed to the downward force
which the draft of air produces by impinging
As soon as
the engine starts up the choke rod II I is released
and the spring I I2 will return the draft actu
ated element 35 and associated elements to the
upon the draft actuated element 35, the draft
closed position and the engine will idle upon the 1O
forcing the element 35 downwardly toward the
charge received through the pipe ‘I8.
complete opened p'ositiomas the velocity of the
throttle valve I9 is moved toward the openedpo
sition the velocity of the down draft of the air
through the pipe I5 is increased, this draft im
draft increases, which is produced by the further
opening movement of the throttle valve. The
speed of the motor is controlled by the extent
of opening of the thottle valve I9, and the ex
tent of opening of the draft actuated element 35
is controlled by the speed of the engine which
creates the draft. When the engine slows down
“.1 upon the swinging movement of the throttle
valve I9 toward the closed position, the velocity
of the draft of air is reduced, the degree of suc
tion'within the pipe I5 beneath the throttle valve
increases, and plunger I03 moves upwardly to
swing the draft actuated element upwardly,
which in turn moves the ovalve body 3!’ toward
As the
pinging upon the element 35 and shifting the
same toward the opened position, the extent of
opening movement of the element 35 correspond
ing to the extent of opening movement of the
throttle valve. As the draft actuated element
35 opens, ports 32 and 33 move into communica
tion with ports 31 and 99, thus supplying the ex
plosive charge to the intake manifold, with the
throttle valve partly or wholly opened. It is thus
seen that the draft actuated element 35 does
not instantaneously drop to the lowermost po
sition when the throttle valve'is ?rst partly
the closed position, thereby reducing the supply
opened as occurs with the first form of the in’
of the explosive charge and moisture in propor
tion to the speed of the engine. When the throt
tle valve I9 isopened to any considerable ex
tent, quickly, the vacuum within the pipe I5 be
neath the throttle valve is at once broken, and
vention, and the first form of the invention has
the advantage of a quicker pick-up.
the spring I01, before the velocity of the draft
the cylinder I00, pipe IOI, connecting link I04
has increased to any considerable extent, will
and spring I01, are omitted. The pipe I5 has no
opening for the pipe IN. The same lever I06 is in
‘r'gidly mounted upon the shaft 30 and the same
choke lever I09 is provided. The shaft 20 of the
throttle valve I9, Figure 8, has a lever II3 rigidly
secured thereto, and this lever has pivotal con
nection at H4, with the link H5. The link H5 40
is provided in its lower end with an elongated
slot I I6, receiving a pin II'I, attached to the for
ward end of the lever ‘I06. The lever I06 is
swung upwardly by a retractile coil spring H8,
23 Li
quickly shift the draft actuated element 35 to
the lowermost or opened position. This will
supply the maximum amount of the explosive
charge to the'intake manifold, thus imparting
to the engine a quick pick-up. As the degree of
~10
vacuum increases in the pipe I5 beneath the
throttle valve I9, it acts upon the top of the
plunger I03, tending to elevate the same, which
in turn will swing the draft actuated element 35
upwardly, and this upwardswinging movement
In connection with the third form of the car
30
buretor, shown in Figure 8, with relation to the
?rst form of the carburetorfshown in Figure l,
' is opposed by the velocity of, the downwardly _ which may be attached to the pin II‘! and to the
travelling air draft impinging upon the element end of the lever II 3 or to any other suitable sta
tionary member or projection. All other parts of
35. These two forces therefore work in opposi
tion, the suction force increasing as the throttle the carburetor shown in Figure 8 are identical
with the ?rst form of carburetor, as shown in
valve approaches the closed position and the ve
.
'
locity of the draft decreases and vice versa. It Figure l.
‘The operation of the form of carburetor shown
is thus seen that means are provided which au
tomatically meters or measures the volume of the
in Figure 8 is as follows:
When the engine is at rest and cold, to start
explosive charge supplied to the engine in pro- .
the engine the choke rod II I is moved rearwardly
portion to the speed of the engine.
_
In Figure '7, I have shown the'second modi?ed to ‘swing the choke lever I09 rearwardly and this
form of the carburetor. In connection with this choke lever then swings lever I06 downwardly,
form of carburetor the cylinder I00, pipe Isl, which in turn swings the draft actuated element
connecting rod I04 and spring I01 are dispensed 35 downwardly to the opened position and'turna
with and there is no opening in the pipe I05 for ' the valve body 3| ' to bring ports 32 and 33 into
the 'pipe IN. A retractile coil spring H2 is ar
communication with ports 31 and 99, ‘whereby a 60
ranged abcve the lever I06 and is connected large volume of the explosive charge is fed to
therewith and may be attached to the shaft 20 the intake manifold and this occurs while the
of the throttle valve or to any other stationary throttle valve I9 remains closed, thereby a?ord:
object. The spring II2 serves to swing‘the lever ing a rich mixture for starting. The downward
I06 upward'y and thereby turn the shaft 30 in movement of the lever I06 does not move the 65
a direction to swing the draft actuated element throttle valve from its closed position because the
35 upwardly. All other parts of‘ the carburetor
remain identical with the ?rst form of the car
buretor. The operation of the second form of
the‘ carburetor is as follows:
With the engine at rest, or cold, the operator
draws the choke rod‘ III rearwardly, which
' swings the choke-lever I09 rearwardly and turns
the shaft 30, which in turn swings the draft ac
75 tuated element 96 downwardly to the opened po
pin I I1 is normally at the top end of the slot H6.
and moves downwardly in this slot without mov
ing the link H5 downwardly. When the choke:
lever,I99 is released, the spring “8 will return
the draft actuated element 35 and associated ele
ments to the closed position, and the engine may
then idle upon the fuel drawn through the‘ pipe
‘I8. _'I'o speed up the engine the throttle valve I9
is shifted toward the opened position, and in
/
2,040,020
order that there may be an immediate supply of
fuel to the engine for a quick pick-up, the link
H5 will now be moved downwardly and the top
end wall of the slot H6 will engage the pin III
and mechanically shift the lever I06 downwardly,
opening element 35 and turning the valve body
3|’ to the opened position. As soon as the engine
speeds up, the velocity of the draft increases, and
this draft impinges upon the element 35, swing
10 ing the same downwardly to 'a great extent or
maintaining the same in a partly opened position.
The extent of opening of the element 35 will cor
respond to the speed of the engine and velocity of
the draft, and hence the valve body will supply
15 a corresponding increased amount of fuel to the
5.
port 33 and is drawn into the main passage 28,
and is mixed with the charge from the carburetor.
It is thus seen that the device will supply an ad
ditional amount of air ladened with water to
the previously formed charge from the carburetor,
and the amount of additional air thus supplied
will be supplied in an increased volume corre
sponding to the increase in the speed of the en
gine. It is preferred to use the device for supply
ing air ladened with moisture to the passage 28, 10
but I contemplate closing off the supply of water
and using the device to supply an additional
amount ‘of air only, to the passage 28.
It is to be understood that the forms of my in
vention herewith shown and described are to be 15
engine as its speed increases. When the throttle taken as (‘preferred examples of the same and
that various changes in the shape, size and'ar- '
valve I9 is again swung toward the closed-posi
tion, the link I I5 rises, and as the velocity of the ‘rangement of parts may be resorted to without
air impinging upon the element 35 decreases, the departing from the spirit of the invention or the
20
spring II8 will swing the element 35 and asso- 2 scope of the‘subjoined claims.
Having thus described my invention, what I
ciated elements upwardly.
'
In Figures 9 and 10, I have shown a unit of my claim is:
1. In a carburetor, a casing, a throttle valve for
carburetor used as a gas saver in connection with
a standard type of carburetor. This unit includes controlling the volume of air entering the casing,
the block 25. The fuel supply port 31 is closed a draft actuated element disposed in the path of 25
travel of the draft passing through the casing,
at its two intakes, by a plug i I9, which is substi
means for introducing fuel into the casing in
tuted for the air jet 40, and a similar plug is sub
stituted for the tubular element or bolt 43 and wardly of the throttle valve and operated by the
closes the opening 41. The needle valve 5| is draft actuated element, a suction operated device
connected with the draft actuated element and
30 preferably removed and a plug I20 substituted
therefor. The air supply port 91 and the water adapted to shift the same in an opposite direc
supply pipe 93 and associated elements remain tion to the movement thereof caused by the draft,
identical, and also the shaft 30, valve body 3!’ and a spring to move the draft actuated element
'
and draft actuated element 35. The same lever ‘ in the direction of the draft;
35 IDS is attached to the shaft 30. v“The block 25 is
2. In a carburetor, a casing, a throttle valve 85
applied to the same intake'manifold Ill, but the
pipe I5 and associated elements is omitted, and a
down-draft carburetor I2I, of any well known or
preferred type, is employed with the block 25 ar
40 ranged between the intake end of the manifold
I‘! and the outlet end of the carburetor I2I, such
block being held in place by the bolts 26, which
extend through the ?ange I8 and a ?ange i22 of
the carburetor. The lever IDS-is swung upward
45 ly by a retractile coil spring I23.
As before stated,
for controlling the volume of air enteringthe
casing, a draft actuated element disposed in the
path of travel of the draft passing through the
casing, means for introducing the fuel into the
casing inwardly of the throttle valve and operated
by the draft actuated element, a suction operated,
device connected with the draft actuated element
and adapted to shift the same in an opposite
direction to the travel of the draft, and manually
operated means connected with the draft actu 45
ated element and adapted to shift the same in a
the carburetor I 2| is preferably of the down
draft type and is of any well known or preferred , direction in opposition to the suction operated
.
construction, the same embodying a choke valve device.
3. In a carburetor, a casing, a throttle valve for
I24, actuated by a crank I25, and a throttle valve
50 I26 actuated by a crank I21.
controlling the volume of air entering the casing,
a movable draft actuated element disposed in the
The operation of the gas saver is as follows:
With the engine at rest and cold, to start the path of travel of the draft passing through the
engine, the choke valve I24! is closed and the casing, means for introducing fuel into the casing
throttle valve l25 partly opened, the spring I23 inwardly of the throttle valve and operated by 55
55 now holds the draft actuated element 35 and
the draft actuated element, a spring to move the
associated elements in the closed position. When draft actuated element in opposition tor'the ac
the engine is cranked, the rich mixture is drawn tion of the draft, and mechanical connecting
into the cylinders and the engine started. Upon means between the throttle valve and the draft
the starting of the engine, there may be a partial actuated element so that the draft actuated ele 60
60
opening of the draft actuated element 35 or the ment may be moved positively in the direction of
the draft by the movement of the throttle valve.
element may open and close to some extent.
As soon as the engine has started, the choke valve ,
I24 is released and is returned to the opened
- position, whereby, the suction within the intake
manifold will ‘create a down draft of "air, im
pinging upon" the element 35, and serving to
shift the same to the opened position. As the
speed of the engine increases, the velocity of the
draft of air increases‘correspondingly, and the
element 35 and valve body 3|’ are moved corre
spondingdistances toward the complete open-ed
position.
When the draft actuated element 35
- moves toward the opened position, port 33 is
75
brought into communication with port 99, and
theair ladened with moisture passes through the
4. In a carburetor, a casing, a throttle valve
,for' controlling the volume of air entering the
casing, a movable draft‘ actuated element dis
posed in the path of travel of the draft passing 65
through the casing, means for introducing fuel
into the casing and operated by the draft actu
ated element, a spring to move the draft actuated
element in opposition to the action of the draft,
a lost motion mechanical connection between the 70
throttle valve and the draft actuated element and
adapted to shift the draft actuated element in the
direction of the draft when the throttle valve is
opened and to permit of the movement of the
draft actuated element in the direction of the 75
6
2,040,020
draft without moving the throttle valve, and man
CI'
ually operated means to move the draft actuated
element in opposition to the spring.
5. In a carburetor, a casing, a throttle valve
to control the entrance of air into thecasing, a
block arranged between the outlet end of the eas
ing and the intake manifold, said block having a
main passage in communication with the interior
of the casing, said block having a fuel supply
10 port, means for_ mixing air and a liquid fuel and
supplying the mixture to the port, a pivoted valve
body carried by the block and disposed at the
outlet end of the fuel supply port and having a
port adapted to be turned into communication
15
25
30
35
draft, and a throttle valve for controlling the
volume of air passing through the casing.
10. In a carburetor, a casing, means to supply
a ?uid to the interior of the casing including a
pivoted valve body having its axis of turning
movement extending transversely of the bore of
the casing, a draft actuated element bodily
mounted upon the pivoted valve body to turn
therewith and to be swung in a direction longi
tudinally of the bore of the casing and to be 10
moved in one direction by the travel of the draft
through the casing, automatic means to move the
draft actuated element in an opposite direction
in opposition to the direction of travel of the
with the'fuel supply port, a draft actuated ele- , draft, manually operated means to move the
ment disposed within the main passage of the draft actuated element in the direction of travel
block and connected with the pivoted valve body, of the draft, and a throttle valve to control the
and means to move the draft actuated element in volume of air passing through the casing.
opposition to the action of the draft.
11._In a carburetor, a casing, means to sup
6. In a carburetor, a casing, a throttle valve ply fuel to the interior of the casing including a
‘to control the entrance of air into the casing, a pivoted valve body having its axis of» turning
block. arranged beneath the outlet end of the eas
movement extending transversely of the longitu
ing, said block having a main passage in commu
dinal axis of the bore of the casing, a draft ac
nication with the interior of the casing and also tuated element bodily mounted upon the pivoted
having a fuel supply port, an air inlet for the valve body to turn with it and arranged within
port, a receptacle to hold a liquid fuel, means of the bore of the casing to be swung longitudinally
communication between the port and the recep~ of the bore in one direction by the travel of the
tacle including a tube extending into the re
draft through the casing, automatic means to
ceptacle below the level of the liquid fuel there
move the draft actuated element in an opposite
in, means for supplying the liquid fuel to the re
direction in opposition to the action of the draft, 80
ceptacle, a pivoted valve body having a port to and a throttle valve to control the volume of air
be moved into and out of communication with the passing through the casing.
,
.
?rst named port, and a draft actuated element
12. In a carburetor, a casing, a throttle valve
connected with the pivoted valve body.
for controlling the entrance of air into the cas
*7. In a carburetor, a casing, a throttle valve to ing, a draft actuated element disposed in the path 85
control the entrance of air into the casing, a block of travel of the draft passing through the casing
arranged beneath the outlet end of the casing,
said block having a main passage and a fuel sup
ply port and a moisture supply port, means to sup
40 ply a fuel to the fuel supply port, means to sup
ply air ladened with water to the moisture sup
ply port, a pivoted valve body having a port for
coaction with the fuel supply port and a port for
coaction with the moisture supply port, and a
45 draft actuated element connected with the valve
body.
8. In a carburetor, a casing, means to supply
a ?uid to the interior of the casing including a
pivoted valve body, a draft acLuated element con
50 nected with the pivoted valve body to tu
with and adapted to be swung in one dir
there
and adapted to move to aposition to close the
passage through said casing, means for introduc
ing fuel into the casing inwardly of the throttle
valve and operated by the draft actuated ele 40
ment, a suction operated device leading into the
casing at a point inwardly of the air controlling
throttle valve /and between. the air controlling
throttle valve and the draft actuated element, and
means connecting the suction operated device
with the draft actuated element, such suction
operated device sarving to move the draft actu
ated element toward its closed position.
,
13. In a carburetor, a casing, a throttle valve
for controlling the entrance of air into the eas 50
tion by , ing, a movable draft actuated element disposed in
the draft passing through the casing, means to
move the draft actuated element in an opposite
direction in opposition to the draft, a choke lever
55 pivotally connected with the valve body and
the path of travel of the draft passing through,
the casing, means for- introducing fuel into the
casing inwardly of the air controlling throttle
valve and including a valve element for control 55
adapted to swing the draft actuated element in. ling the volume of fuel entering the casing, said
the direction of the draft and incapable of being valve element being operated by the draft actu
moved by the valve body when the draft actuated ated element, means to move the draft actuated
element-is shifted in‘ the direction of the draft by ' element in opposition to the action of the draft,
such draft, and a throttle valve for controlling ) means connected with the air controlling throttle 60
, the volume of air passing through the ‘casing.
valve and actuated by the same when the throttle
9. In a carburetor, a casing, means to supply valve is moved toward. the open position to posi
fuel to the interior, of the casing including a piv
tively operate the valve element for supplying
oted v'alvezubody projecting into the‘ bore of the fuel into the casing, such positively operating
65 .casingfa draft actuated element bodily mounted means permitting of the further opening ‘opera
65
upon the pivoted valve body to turn therewith .tion of the said valve element without movingthe '
and to- be swung in one direction by the draft air controlling throttle valve toward the open po
passing through the casing, a lever attached to sition, and manually operated means for actuatthe valve body to move therewith, means to move _ ing the said valve‘ element for supplying fuel into
70 the lever in‘a' direction to swing the draft act - the casing while the air controlling throttle valve
70
ated element in opposition to the travel of the, is substantially, closed.
'
draft, a choke lever pivoted upon the valve body '
.14. In a carburetor,‘ a.
a throttle valve.
and having ‘a part to engage with the ?rst named for controlling the entrance of air into the cas-v
lever- so that the choke ‘lever may swing the draft ing,-a‘movable draft actuated element disposed
actuated element in the direction of travel of the
,
in the path of travel of the draft passing through
r
.
l
I
2,040,020
'7
the casing, means for introducing fuel into the
air controlling throttle valve when it is moved‘
casing inwardly of the throttle valve and includ
toward the open position to actuate the valve
element to supply fuel to the casing,~and sepa
rate means to actuate the said valve element to
supply fuel into the casing without moving the 5
air controlling throttle valve.
WILLIAM B. PARKER.'
ing a valve element for controlling the volume of
fuel entering the casing, said valve element being
operated by the draft actuated element, means
to move the draft actuated element in opposition
to the action of the draft, means operated by the
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