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Патент USA US2296970

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Sept. 29, 1942.
2,296,970
G. H. WOLFE
FLUID MIXER
Filed March 26, 1940
2 Sheets-Sheet 1
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Sept. 29', 1942.- '
G. H. WOLFE
2,296,970
FLUID MIXER
7
Filed March 26, 1940
2 Sheets-Sheet 2
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INVENTOR.
George
Henry No lfe
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Patented Sept. 29, 1942
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‘UNITED. STATES PATENT OFFICE
_
FLUID MIXER
George Henry Wolfe, Brooklyn, N. Y.
Application March 26, 1940. Serial-No. 325,955 ..
_ _
In Italy March 2'1, 1939
‘2 Claims.
V
.
(01. 48-480) >
source; in special cases it may be driven’ by
hand. If desired the, blades 3, the shape of which
is- shown mostclearly in Figs. 4, 5 and 6, may
have side-plates 4 (Fig. 6). In the case illus
trated the body I is provided with an outlet con
internal combustion engines in proper mixture
duit 5 and two inlet conduits 6 and ‘I, which lat
proportions under all operating conditions. The
ter may serve respectively for, say, the supply of
arrangement of the invention can also be used
combustible gas and air to form an explosive
to mix air and illuminating gas for the supplyv
mixture for an internal combustion engine.
of a kitchen stove, to furnish gas for chemical
The conduits 6 and ‘I (Fig. 5) house two but
(e. g. disinfecting or'asphyxiating) purposes and 10
terfly valves I6 and I5 respectively which are con»
generally for all cases where there is occasion
trolled externally by a system of levers and a
to furnish a mixture in a ?xed quantity, or de
regulating link 9. The air and the combustible
sired variations of quantity.
gas mix themselves together under the action of
This arrangement in accordance with the in
the blades 3 and are driven by the centrifugal
vention consists essentially of a centrifugal
forces produced by the rotation of the rotor, at
rotor, conduits for supplying the ?uid compo
superatmospheric pressure, into the tube 5 which
nents to the rotor, valves controlling the said
carries the blended mixture to the engine. The
conduits, and means to vary the ratio of the
dosing or regulation of the mixture to the exact
openings of the valves. In the case for example,
of an internal combustion engine the rotor may 20 amounts required is effected by controlling the
relative opening or closing of the valves I6 and
be driven by the engine, preferably at a periph
I5, this result being obained by the linkage
eral velocity greater than that with which the
shown in detail in Figs. 2 and 3, which indicate
mixture would normally ?ow to the engine due
the two extreme positions of adjustment of the
to the suction caused by the pistons of the en
gine. Due to the valve controls it is possible, as 25 valves I6 and I5 in relation to one another.
This linkage system is operated by a control
hereinafter explained, to provide efficient con
rod 8 attached to the link 9, which directly con
trol of the quantity and relative richness of the
trols valve I5. The rod 8 can be controlled in
mixture under all conditions.
the case of a motor vehicle by the accelerator
The arrangement also furnishes an intimate
pedal, and in a stationary installation by a hand
and homogeneous mixture of the fluids, the com
control. The valve I6 is controlled externally
ponents being forced to meet each other by the
by means of an arm III which at the other extrem
blades of the rotor which carries them subse
ity is attached to a rod II, which carries a pin
quently at a high linear velocity through the out
II’ inserted into the slot of the slotted link 9.
let which carries the mixture to the engine or
The extremity of the rod II is attached to the
other apparatus, producing in thisway an in
lower end of a rod I2 which'by a bell-crank lever
creased thermo-dynamic e?iciency for a given
I2’ is connected to a second control rod I3. In
combustible material.
the case of a vehicle installation the rod I3 may
The attached drawings show by way of ex
be operated from the dashboard. The lever I2’
ample one form of construction of the arrange
ment according to the invention, in which draw 40 is pivoted at I4 to the body I. By placing the
pin II’ at the appropriate point of the slot in
mgs:
the link 9 (the two extreme positions being shown
Fig. 1 is a lateral elevation;
in Figs. 2 and 3) the relative angular travels of
Fig. 2 is a front view;
the valves I5, I6 are adjusted independently of
Fig. 3 is a view similar to Fig. 2 but showing
45 the joint control due to rod 8. This adjustment
the valve mechanism in a di?'erent position;
of the pin II’ is effected by the rod I3.
Fig. 4 is a longitudinal section along the line
In both Figs. 2 and 3 the control rod 8 is shown
IV—IV of Fig. 2;
in full lines in the inoperative (valves closed) po
Fig. 5 is a section on line V-V of Fig. 1;
sition R while the two extreme positions of rod
Fig. 6 is a partial section of the rotor and one
50 I3 are shown at T and U. In moving from the
of the side walls thereof.
position shown in Fig. 2, the control rod 8 travels
The body I of the mixer encloses a rotor 2
towards its other extreme position S (indicated in
having blades 3 and driven by pulley I1 and
dotted lines) and the angles of opening of the
transmission belt I8 which transmits power either
two valves I5 and I6 are nearly the same. If
from an engine with which the apparatus is as
sociated or from an independently regulated drive r the same operation is performed while the rod
. The present invention relates to apparatus for
the preparation and regulation or dosage of a
mixture of ?uids especially adapted to theme
duction of an explosive mixture for the supply of
2
A
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2,296,970
I3 is pushed to the other extremity of its course
as is shown in Fig. 3 it clearly appears that the
maximum opening of valve I5 is obtained while
valve I6 has not moved. It is also clear that in
accordance with any intermediary location of
the pin II’ in the regulating link 9, there will
be a corresponding ratio between the two valve
movements.
Thus the flow of air can be regu
lated to form a combustible mixture ,of appro
priate proportions at all conditions of operation
of an engine and this can be done in the case
of a vehicle While the vehicle is in motion and
fromv the driver's seat.
The arrangement describedwith reference to
the drawings can be utilised to obtain a homog
eneous mixture of liquid with gas as for example
a mixture of air and petrol or heavy oil for ‘petrol?
driven or Diesel engines and can replace the
usual carburetters for engines of all descriptions.’
The arrangement also notably improves upon the
results obtained with existing mixers especially
with regardto the intimate nature of the mixture
on which depends the thermo-dynamic ei?ciency
of the explosion.
.
I claim:
1. A centrifugal mixer for fluids comprising a
centrifugal rotor, conduits for supplying the
?uid components to the rotor, valves controlling
the said conduits, means for controlling one of
said valves, said means comprising a slotted link,
means for controlling the other of said valves,
said means comprising a link adjustable in the
slot of the ?rst link, and means for adjusting the
be position of said second link to vary the propor
tional openings of the two valves without effecting
operation of the ?rst link.
2. A centrifugal mixer for ?uids for use for
example in the preparation and supply of an
explosive mixture comprising a centrifugal rotor,
conduits for supplying the ?uid components to
the rotor, valves controlling the said conduits,
means to vary the ratio of the openings of the
valves, and means coupling the valves to a slotted
link, said link having two independent controls
whereby the amount of mixture supplied and the
relative proportioning of the components may
be separately adjusted.
GEORGE HENRY WOLFE.
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