close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2386002

код для вставки
oct. 2, .1945.
2,386,002
A. F. O’CONNOR
AIR CIRCULATING MEANS FOR REFRIGERATOR “CARS `
Filed DBG. 13, 1943
3 Sheets-Sheet 1
Y/
42
137|
Oct. 2, 1945.
2,386,002
A. F. o'coNNoR
VAIR CIRCULATING MEANS FOR REFRIGERATOR CARS
Filed Dec . 13, 1943
I5 Sheets-Sheet 2
\
Í/Il/////,l/N/////l//
7/ /
4f6
/Af,A
//
\
\\\
/
\
.
// /
///////
//
\
\
\\
\\
\\
\\ \\ \\\\
\\
//
2/
o
,----....„---
I
‘
i
v
\\
Ott. 2, 1-945.
’
f
l
`
/
«
,A. F. o’coNNoR
2,386,002 _
AIR cmcuLATmG MEANS FOR REFRIGERATOR cARs
Filed Dec. 13, 194s
s sheets-sheet 3
//Ó /
Ó
////// // //////
\\
\
\`
f2.
l
,
.
r
äêê
r
Patented Oct. 2, 1945
l, > N2,080,002,
I
r
UNITED ' ïs'm'rlssA >PirrENT - OFFICE
\
.
2,386,002
am cracmmo. MEANS ron
-
‘
nararosaa'ron cans
Arthur F. O’Oonnor, Chicago, lll.; assigner to
UnionAsbestos & Rubber Company, a'corpora- ‘K
- tion ot Iliinois
application December 1s, 94s, semina. 514,025
10 Claims.
This invention relates to air circulating means
for refrigerator cars and >more particularly to
(on «sa-24)
Y
‘
nection with the accompanying drawings, in
which-
an arrangement of air circulating fans in a car
'
`
-
-
'Figure l is a partial- horizontal section through`
a refrigerator car embodying the invention;
Figure 2 is a.v partial transverse section on ïthe
to circulate air through the lading and ice com'
partments thereof.
f Y#
,
It has heretofore been proposed to circulate
. line 2-2 of Figure l;
- air through cars by providing air circulating fans
Figure 3 is a partial section on the >line 3_3 ’
or blowers carried by the bulkhead which sepa
rates the lading and ice compartments. When
movable bulkheads _are employed the mounting 10
of the air circulating means on the-bulkhead
of Figure 2;
i
.
. I
-
i
Figure 4 is a section on the line 4_4 of Fig
ure 2;
»
.
-
Figure 5 is a partial perspective view: and
and the drive connections thereto seriously com
y Figure 6 is a view similar to Figure 2 of an
plicates the construction. Also themountlng of
alternative construction.
thé air circulating fans or blowers on the bulk
The invention is illustrated as mounted in a
head _makes it substantially impossible to main 15 more or less conventional refrigerator car having
tain an unobstructed duct through the bulkhead.
It is accordingly one of the objects of the present
invention to provide an arrangement of circu
lating fans in the car independent of the bulk
head» and yet which will create an eilective cir
culation through the car.
.
"
I
insulated side walls I0, insulated end walls II
and an insulated floor l2 supported on beams
' Il. The interior space of the car is divided into
a lading compartment I4 and an ice bunker
20 compartment I Iby a vertical bulkhead I6. The
-
bulkhead as shown is hollow with an opening I1
_
It has alsov been proposed to mount blowers
on the ñoor of the car and> to drive themby a
common shaft extending transversely acrossthe
car. In a structure of this type it is extremely 25
difllcult to maintain the shaft bearings aligned
and the blowers further obstruct the free flow
of air by gravity when they are not in operation.
It is another object of the present invention to
provide a series of air circulating fans in a car 30
which do not requirei a cross shaft drive and
which present a minimum obstruction to gravity l
at its lower end through which air may circulate _
vertically in the bulkhead. Preferably the bulk
head is also movably mounted in the car to move
from the extended _position shown to a retracted
position adjacent the end wall of the car as more
particularly disclosed in the patent to Lundvall
ARe. N0. »22,271.
f
.
The bulkhead rests ‘on a transverse supporting
beam I8 supported above the door of the car by
spaced brackets I9. The ice bunker compart
ment is provided with a floor grating 2|.flush
circulation when they are not in operation. The 1
with the upper surfac` of the beam I8 and formed
` latter object is preferably accomplished by pro,-,
by spaced bars between which air may circulate
viding straightfline circulation through the _fans> 35 over the ice in the bunker, Preferably, the end
and fan housings.
i
’
' on the ice bunker has screens 22 spaced from the
It is another object to provide fail mechanism
car walls to provide air circulation channels in»
termediate the ice and the end\walls II. It will
be understood that the bulkhead` I6 terminates
the lading and ice compartment iloors.
'
Still another object of the invention is to pro 40 short of the top of the- car to leaving; space for
so mounted as not to interfere with cleaning of
vide a series of fans aligned with the natural
channels formed by the floor beams of the lading
floor to insure an even distribution of circulating
air throughout the car.
Y
`
1
_
air circulation.
\
I
` In the lading compartment of the car a plu
rality of longitudinally extending floor beams 23
areprovidedspaced transversely~ of the carto
A further object of the invention is to provide 45 leave channels between them. A lading support
ing grating formed‘by cross bars or slats 24 over
a series of fans for circulating air through. the
lies the beamsl 23 and terminates substantially
car having means to close the spaces between
ilush with the-upper surface of the beam I8 and"y
the fans during operation to eliminate eddy cur
the ice grating floor 2|. 'I'he bars or gratings 24
rents and to open such spa'ces when the ians 50 are
spaced apart as shown to provide spaces be
are not in operation to insure maximum gravity
tween them for air circulation.
` ‘
circulation.
'
Air is caused to circulate through the car by
The above and other objects and advantages A a series of fans 25 mounted beneath the beam Iiil
of the invention will be more readily apparent
and independently supported on brackets 26 fas
from the following description when read in con 55 tened to the floor of the car. Accdrding to one
/
l
v
v asaaoos \
feature ofthe invention the fans are aligned with
the channels between the adjacent floor beams
2l so that each fan tends to circulate air through
its associated channel thereby insuring a sub
stantially even distribution of air throughout the
entire car. If desired, screens 21 may be con
nected over the ends of the beams to' screen any
t foreign particles from the air prior to its passage
through the fans and to keep ice particles or
other foreign matter away from the fan belts. _
The fans are driven by any suitableI power
means preferably derived from motion of the car
such as a power take oi'f on the wheel or axle.
As shown, in Figure 2. a fluid pump 28 is provided
supplied by -the pump 28 through pipes 45 con
nected to the rear ends -ofthe cylinders. When
the pump 28 is operating, iìuid pressure acting on
the pistons moves them against' the springs 45 to
rock the vanes counter-clockwise, as seen in Fig«
ure- 4, to their closed position.
In opertion when the car is in movement the.
pump 2liy will supply pressure to close the vanes
and to operate the motor 29. At this time the
fans will be driven and they are preferably oper
ated in a direction to circulate air in the direction
of the arrows in Figure 3 along the channels be
tweenthe .beams 23 toward the` ice bunker. The
air is forced up through and around the ice in
driven from the car wheel or axle and supplying
fluid under pressure to a motor 29 mounted be
the .bunker and through the channels provided
neath the beam I3 in alignment with the series
of fans. A return line 3| returns fluid from the
bulkhead. The air thus becomes cooled by con
motor'to the pump or to a supply reservoir to.
by the screens 22 as well as through the hollowy
tact with the ice and with the cold surfaces oi'
the bunker and passes over the top of the bunker
which the pump inlet is connected. Themotor 20 into the> lading space _of the car. As the cold air
29 drives a pulley 32 which is connected by a
settles through the lading space it passes around
flexible belt "to a double pulley 34 on the shaft
` and through the lading and through the grating
of the first fan 25. The first vfan 25 is connected
24 to be re-circulated by the fans.
to the second fan in series by a similar flexible
When the car is stationary the pump 28 stops so
belt 35 engaging the pulley 34 on the ñ'rst fan
that the. motor 29 also stops. Pressure acting on
and a similar double pulley 36 on the next adja
the cylinders 4I is relieved and .the springs 45
cent fan. In like manner, the several fans of
move the vanes 3i!A to their open position. At this
the entire series are yinterconnected together and
time cold air will circulate by gravity down~
to the motor 29 so that when the motor is oper
' wardly through the ice bunker and past the vanes
ating all of the fans will operate in unison.
30 39 as well as through the hoods 38 around the fans
The pulleys and belts are preferably located
into the lower part of the lading compartment.
adjacent but slightly beyond one edge of the
It will be noted that a minimum obstruction to
beam I8 as seen in Figures l and 3. Access to
this gravity circulation is provided b'oth because
the pulleys and belts for adjustment and repair
the vanes 39 are opened and also because through
is provided by a cover 31 hinged at one edge to 35 channels are left around the fans.
.the beam I8 and which can be raised to provide
Figure 6 illustrates an alternative construction,
parts therein corresponding to like parts in Figaccess to the pulleys and belts from the lading
compartment of the car.
In this way, any neces
ures 1 to 5 being indicated by the same reference
sary repairs or adjustments can easily be made
numerals. Inl this construction, each of the fans
40 25 is provided with an individual driving motor
without requiring any dismantling of the car.
5I supplied with iluid through pipes 52. Instead
'I'he several fans are preferably enclosed by
of being supported on the floor of the car, in this
hoods or covers I8. As shown the hoods are se
case the fans and turbines are carried by brack
cured to the floor of the car and enclose the fans
to provide straight channels in which the fans - „ets 53 suspended from the beam I8 and the fans
45
are enclosed by hoods or covers 54 similarly Isus
operate so that their emciency is increased. The
pended from the beam 1I8. In this way, the floor
space between the several fans and around the
of the caris left clear so- that any liquid or dirt
covers 38 is adapted to lbe closed by a pivoted vane
accumulating on the floor does not get into the
39 hinged at its upper edge on the beam I8. 'Thev
vane is cut out as best seen in Figure 5 to .fit 50 fan mechanism. The spaces between the hoods
54 may be controlled by vanes operated by the cyl
closely around the hoods 3l so that when the vane
inders 4I in the same manner as described above,
is in its closed position the space between the
the vanes being properly shaped to clear the hoods
hoods will be tightly closed to prevent any air
during movement.
circulation therethrough. It will be understood
that one vane extending substantially the full 55 By the present invention the entire fan mech
anism including both the fans themselves and the
length of the beam could be provided but prefer
driving means therefor is located beneath the
ably there are a series of vanes each operatingbulkhead 'supporting beam and out of the lading
between adjacent supporting brackets I9 and> in
and bunker portions of the car. The lading and
terconnected for simultaneous operation.
The vanes are normally moved to an open or
bunker portions require frequent cleaning and
inoperative position as shown in dotted lines in 60 with the apparatus located beneath the beam the
racks in the lading and bunker compartments can
Figure 4 and are adapted to be'moved to closed
be removed and the floors can readily be cleaned
position when the fans are in operation. For this
without interference. Further this location pre
purpose cylinders 4I are provided mounted be
any damage -to the fan mechanism during
tween the legs of supporting brackets I9. Each 65 vents
cleaning.
of the cylinders has a piston slidable therein
The arrangement of the fans .and fan housings
whose piston rod 42 carries a cross pin 43 at its
to provide straight line ñow of the' air creates a
I outer end connected by links 44 to the adjacent
minimum- of interference with air circulated
vanes on each side or the supporting bracket.
through the car at all times.. _
‘ 'I'he pistons are normally held in retracted posi 70
The arrangement shown in Figure 6 in which
tion in the cylinders by springs 45 and in such
the fans and fan housings are spaced above the
position retract the piston rods to swing the vanes
car iloor insures that moisture or other foreign
clockwise as seen in Figure 4 to open the space
material collecting on the floor will be kept out of
between the adjacent hoods or covers. The vanes
are moved to closed position by fluid pressure 75 the fans and the fan driving mechanism. Since
brine commonly occurs in cars of this character
a,'see,ooa
and is highly corrosive, this construction presents
particular advantages in certain types of installa
tions.
`
»
p
It will be understood that the driving mech
anism shown employing a hydraulic pump and
motors is illustrative only and might be replaced
by various other types of drives. Additional
changes might also be made as will occur to those
skilled in the art without departing from the
spirit and scope of the invention and it will there
fore be understood that the particular embodi
ments shown are illustrative only, reference being
had `to the appended claims to determine the
` scope of the invention.
What is claimed is:
,
y
1. In a refrigerator car having a bulkhead di
viding the car -into a lading, compartment and
an ice compartment, air circui ting means com
prising a beam extending transversely across the
3
therefor, closure venes movably mounted on the
beam to close the space between the covers, and
control means for the closure vanes to movethe
closure vanes to a position to close the space be
tween the covers when the fans arein operation.
5. In a refrigerator car having a bulkhead di
viding it >into a lading compartment and an ice
compartment, air circulating means comprising a
beam underlying and'v supporting the bulkhead
and spaced above the floor of the car, a series of
fans in the space between the beam and the
ñoor of the car, drive means for the fans adja
cent one edge of the beam, and a cover plate
pivoted to said one edge of the beam and adapted
15 to be raised to permit access to said drive means
from the interior of the car.
,
6. In a. refrigerator car having a bulkhead
' dividing itinto a lading compartment and an ice
compartment, air circulating means comprising
car adjacent the bulkhead and spaced above the l20 a beam underlying and supporting the bulkhead
floor of the car, a series of fans mounted between '
and spaced above the door of the car, a s_eries
the beam and the floor of the car to circulatev air 'f of fans in the space between the beam and the
through the lading and ice compartments. mov
floor of the car, fluid operated means to drive the
fans, a vane pivoted to the beam to »close the
able vane means adjacent the fans normally held
in a positio-n to open the space between the fans 25 space between .the fans, and pressure respon
4and movable to a position to close the space be
sive means connected to the fluid operated means
to control the vane.
tween the fans, and means operable when the
7. In a refrigerator car having a series of longi
fans are in operation to move the vane means to
the last named position.
„
tudinally extending beams along its floor and> lad
2. In a refrigerator car having av bulkhead di 30 ing supporting members carried by the beams and
spaced apart for air circulation, air circulating
viding the car into a lading compartment and an
ice compartment, air circulating means compris
means comprising a series of fans mounted adja
cent the car floor in alignment with the spaces
ing a beam extending transversely across the car
adjacent the bulkhead and spaced above the floor
between adjacent beams respectively and adja
of the car, a series of fans mounted between the 35 cent one end of the beams, said fans operating to
circulate air through the car and through the
beam and the floor of the car to `circulate air
through the lading and ice compartments, mov
channels formed by the beams to provide a sub
able vane means adjacent the fans normally held
stantially even distribution of air through the '
car.
in a position 4to open the space between the fans
8. In a refrigerator car having a bulkhead
and movable to a position to close the space be 40
dividing it into a lading compartment and an ice
tween the fans, power means- to drive the fans,
compartment, air circulating means comprising _f
and control means for the vane means to move
a beam underlying and supporting the` bulkhead
the vane means to the last named position when
the power means is energized.
and spaced above the floor of the car, fan mount
3. In a refrigerator car having a bulkhead di
ing means carried by the beam extending down
viding the car into a lading compartment and an
threfrom and terminating‘above the floor of the
ice compartment, air circulating means compris
car, and fans carried by" the mounting means spaced above the floor of the car.
I
ing a beam extending transverselyacross the car
9. In a refrigerator car having a bulkhead
adjacent the‘bulkhead and spaced above the floor
of the car, a series of fans mounted between the 50 dividing it into a lading compartment and an ice
compartment, air circulating means comprising a
beam and thevfloor of the car to circulate air
beamy underlying and supporting the bulkhead
through thelading and ice compartments, open '
ended covers around the fans forming air chan
and spaced above the floor of the car, fan mount
nels through Which the fans circulate air, mov
ing means carried >by the beam extending down
to fit around the covers to close the space there
between and movable to a position to open the
space between the covers, and control means for
car, fans carried by the mounting means spaced
able vane means pivoted o'n the beam and shaped 55
l l therefrom and terminating above the ñoor of the
the vane means to move the vane means to a
position to close the space around the `covers
when the fans are in operation.
4. In a refrigerator car having a bulkhead dl
viding the car into a lading compartment and an
above the floor of the car, a fan driving motor i
carried by the beam spaced above the door of the
car, and driving means connecting the motor to
the fans.
.
‘
10. In a refrigerator car having a bulkhead
dividing it into .a lading compartment and an ice
compartment, air circulating means comprising
a beam ‘underlying and supporting the bulkhead
ice. compartment, air circulating means compris
ing a beam extending transversely across the car 65 and spaced above the floor of the car, fan mount
adjacent the bulkhead and spaced a'bove the floor
ing means carried by the beam extending down
therefrom and terminating above the floor of the
of the car, a series of fans mounted between the
beam and the floor of the car to circulate air
car, fans carried by the mounting means spaced
ythrough the lading and ice compartments, open
above the floor of the car, and open ended covers
ended covers secured to thev beam with their 70 around the fans secured to the beam and termi.>
lower parts spaced above the floor of the car, and
nating above the door of the car.
ARTHUR F. O’CONNOR.
fittinggaround the fans to form air channels
Документ
Категория
Без категории
Просмотров
0
Размер файла
811 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа