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Патент USA US2058831

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_ Oct. 27, 1936.v
c. sANcToRUM
Filed Oct. 2, 1934
55 sa
5 Sheets-Sheet 1
Hg”. l '
' Oct. 27, 1936..
c. sANcToRUM
Filed oct. 2, 1934
5 sheets-sheet 2
Oct. 27, 1936.
Filed Oct. 2, 1934
5 Sheets-Sheet 3
- Oct. 27', 1936.
Filed Oct. 2, 1934-
5 Sheets-Sheet 5_
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Petented oet. '27, 1936
Charles Sanctorum, Pantin, France, assig‘nor to
Societe S. P. H. I. N. X., Pantin, France -
Application October 2, 1934, Serial No. '746,578
In France October 4, 1933
(Cl. 261--41)‘
8 Claims.
The present invention relates to a carburetor
‘Fig. 10 is a, section of a modification of an
device with multiple independent diffusions and ' emulsiñer in :one piece.
mechanical control, applicable to all types of in
ternal combustion engines.
The object of this invention is to enable the
engine to be started when cold, even at the lowest
This emulsiñer, the upper part a of which is
calibrated for the purpose of regulating the air,
and the lower and thinner part b is pierced 5
through its length in two different diameters c
and d. The duct of smaller diameter, starting
A further object of the invention is to provide nfromvthe bottom, where the fuel enters, rises.
just above the constant level. An air-hole e for
' great ilexibility by the successive use of a number
of independent sprayingv nozzles and emulsifiers.
the emulsion of the fuel opens into the duct c of 1'0 `
These emulsiñers give "a Whole range of gaseous
smaller diameter above the constant level.
Fig. 11 shows a view of the control system for
stream lines at every normal speed and av reserve
of power at all speeds. This object may also be
attained by utilizing systems `of emulsion in one
15 piece (spraying nozzle,.emulsii'ler and means for
regulating the ñow of air) as will be explained
A further object of the invention is to obtain
; from the motors a. power greater than that hither
20 to obtained, and a substantial economy of fuel
by the complete and rational utilization thereof.
Yet another object is to provide for the utiliza
tion not only `of light fuels but also of heavy
rapid opening of the butterñy valves.
Fig. 12'is a modification of the control system,
for slowopening of the butterily valves.
Fig. 13 is a partial section of the starter.
Fig.'14 is an outside view of the air inlet side.
Fig. 15 is a View in section through the axis oi
one of the emulsion bodies, parallel tothe median
plane of the air admission duct, of a section em- 20
bodiment of_ the apparatus.
emulsion bodies.
motors themselves and very disagreeable when
on the line ct-d in Fig. 2.
and 'passingthrough the axes òf two adjacent
Still a further object is to suppress detonations
in the .motors which are very prejudicial‘to the
Fig. 16 is a view of the same apparatus in sec
tion on a plane perpendicular to that of Fig. 15
Fig. 1'? represents the same apparatus in section ,
» Figure 18 is a schematic view in longitudinal
An advantage also results from a ready acces
section of the carburetor, itvbeing supposed that
30 sibility of the externally arranged spraying noz-_ y the emulsitiers are arranged in one land the same 30
zles, which can be removed by means of a screw line.
driver or even by, means of Ea mere coin without
dismounting the apparatus. '
Figure 19 shows `the mounting of the pivot>` of
-the butteriiy valves. . -
This carburetor device may be of two types, one
In these drawings, A is the admission pipe or , y
with horizontal admission and one with vertical ' upper body of the carburetor. It is into this pipe 35
that the various diiîusion ducts> extend and open
Two embodiments of the invention are illus
trated in th'e accompanying drawings, in which:
Figures 1, 2, and 3 are profile, elevation and plan
40 _views respectively of a ñrst embodiment' of the
apparatus according to the invention.
y A
B is the intermediate or central part of the car
diffusion ducts into the pipe and so forth, are
buretor located between the pipe and the lower
body. It is in this part,L which forms a cover for 45
" the float chamber, that the fuel inlet is located,
the various sections. 1
Fig. 4 is an outside proñle viewkof the iloat
chamber from the side.
zles from the side.
. \Fig. 6„is a view ofthe admission pipe or upper
body of‘the horizontal type.
Fig. 'l is. a section‘on the line ¢t.-a in Fig. 4.
jFig. _8 is a'section on the line bl-b in Fig. 4.
and also the filtering strainer, the needle, the
well shaft, the spraying» nozzle and the suction
- Fig. 5 is an elevation View of the spraying noz..
Y 55'
also located therein.
as butterñy valves, axial grooves, extension of
45 ‘omitted in these three figures, but are shown iii
shaft, the means for controlling the starter, the
air spraying nozzle and the suction duct of the 40
starter, and the regulating screw for idling, are
For the sake of clearness certain details, such .
in‘bunches in the admission aperture, in order not
to hamper the gaseous stream lines. 'I'he control
9 is a section on the line c-'-c in Fig. 4.
duct of the starter, the air-hole„the butterñy
valves, the pivots, controlling means and return- 50
springs thereof, andthe suction hole of the- idling
C is the lower body, comprising .the iloat cham
ber and its float, >with a lodgment -for the well
Shaft of the starter, the air inlet, in which a'ñlter 66
may be fitted, the emulsiiiers, the- diffusion aper
tures, the ducts conveying the fuel' and the spray
ing nozzles.
All these spring lodgments are covered by an
elongated plate which is shown in Figure 14.
The other' end of each of the pins 22 is rigid
D is acasing, having inside it the means for 4 with the cam 25 and the three pins are arranged
(see Figure 18) in such a way that they are par
allel but arranged on one and the same cylinder,
tioning of the acceleration lever, and also the the axis of which is precisely the axis of oscil
lation of the sector 26, the angular movements of
acceleration lever itself.
In the various figures, I denotes the admission which are controlled by the lever 29 (Figures 1,
controlling the butterfly valves, and having on the
outside a disc pierced with holes for the posi
10 pipe or upper body, 2 the intermediate part of
the carburetor, 3 the lower body, 4 the casing, 5
the fuel inlet, 6 the ñltering screen that stands
across the path of the fuel, 1 the needle, 8 the
iioat chamber, 9 the float, I0 a duct conveying fuel
15 to the spraying nozzles, || the spraying nozzles,
I2 the ducts conveying fuel from the spraying noz
zles to the emulsiñers, I3 the emulsion bodies, I4
the emulsion holes, I5 the cup of the emulsiñer,
I6 the cap of the emulsifler, I1 the air-holes
20 pierced in the emulsifler cap, I8 the diffusion
ducts, into which the calibrated caps of the
emulsifiers penetrate for the purpose of regulat
2, and 5).
When it swings the sector 26 acts successively
on the cams 25 and opens the throttle valve 2|
successively, thereby producing also the successive
operation of the jets I3.
When the sector 26 returns backwards under
the action of the return springs 24, the cams 25
return to their initial position which corresponds
to the closure of the throttle valves.
_ 'I'he last drowned jet || is the slow running jet
and its spraying nozzle delivers into a passage 20
-which comprises no throttle valve. Thi's passage
at its upper part near the outlet into the single
ing the air, I9 the air inlet,- which may be equipped . supply pipe is of smaller diameter and may be
»with a filter, 20 the lodgments for the butterfly more or less obstructed by means of the'screw 21
25 valves, 2| the butterfly valves, .22 the pivots of the which thus regulates its delivery by acting upon _
butterfly valves, 23 the operating grooves for the the total emulsion.
antagonistic springs of the butterfly valves, 24 the
springs themselves and their lodgments, 25 the
cams for controlling the butteriiy` valves, 26 a
30 stepped sector for controlling the various butterfly
valves, 21 the regulating screw of _the idling de
vice, 28 a disc pierced with a ring of holes for
the positioning of the accelerator lever, 29 the ac
celeration lever, 3D the well shaft of the starter, 3|
35 the spraying nozzle of the starter, 32 the suction
duct of the starter, 33 the suction chamber of the
starter, 34 the suction hole of the starter, 35 the
means for closing the suction hole of the starter,
which means may consist of a plate, a needle or a
40 hemisphere, 36 the antagonistic spring of the said `
closing means, 31 the air spraying nozzle of the
starter, there being one or 'two such spraying
nozzles according to the stroke volume of the
motors, 38 the cover of the starter, 39 the bracket
for the starter lever, 4|) the starter lever, 4| the
air admission flap valves, 42 the pivots `of the ilap
valves, 43 the metal boxes, 44 the cone or bell
mouth of the emulsiflers,' and 45 the emulsion
As will be seen more clearly in Figure 18, fuel
from the constant level chamber 8 is fed to the
various drowned jets II (Fig. 18) through the
_duct I Il, this duct extending from the -constant
level chamber up to the last of the spraying noz
55 zles II.
From each of these jets I I the fuel passes to the
emulsifìers I3 through the ducts I2. For the
sake of clearness these emulsiflers are shown in a
-straight line (Fig. 18) but in the construction' they
60 are arranged in a staggered formation in order to
reduce the length of the apparatus (Fig. 4).
Above each of the Working spraying nozzles
placed at the centre of a circular passage I8 is
situated the throttle valve 2|, which controls the
said passage.
Each throttle valve 2| is mounted upon a pin
22 which pivots in the body of the carburetor and
comprises at one of its ends a slot I3 in which i's
The starter jet, shown in greater detail in Fig-y
ures 16 and 17 draws fuel from the wells 30 which
are integral with the chamber 8. The emulsion
follows vthe duct 32 and enters a chamber 33 30
communicating on the one hand with the atmos
phere through a calibrated oriñce 21 which per
mits the entry of the necessary air to complete
the emulsion, and on the other hand with a chanf
nel 34 which leads into the admission pipe.
A slide valve 35, externally operable, permits
the passage into the chamber 33 to be more or less
The starter operates in the following manner.
By pulling upon the cable, the handle) of which is 40
placed on the roof dashboard, the suitably shaped
lever 40 is moved.
One arm of this lever pene
trates into a groove formed in they tail of the clos- »
ing means 35 and raises the latter, uncovering the
suction hole 34.
The'motor which is being started draws in at
the same time through the suction hole 34 air
from the air spraying nozzle 31 and fuel already
emulsifiedjn the spraying nozzle 3| through the
suction duct 32. 'I'he starter spraying nozzle 3|
plunges into the well shaft 30, where it forms a
joint. This spraying nozzle is in communication
with the air by its upper part and with the fuel
by its lower part. Suitable holes serve for the
suction of the mixture.
For the purpose of replacing the starter at
stoppage, push back the pulling handle. The
closing means 35 closes the hole 34 when it rests
upon its seat, where it is maintained by the par
tial vacuum and the spring 36, which is utilized 60
for this purpose. When the engine is running
and the hole 34 is closed by the closing means
it is possible without inconvenience andwlthout
occasioning trouble in the running of the engine
to remove the sprayingnozzle 3|, which is exter 65
nally located, by means of a screw-driver or a
cavity formed in the body 2 of the carburetor.
The control of the starting device may equally
well be arranged in the intermediate part B of the
carburetor, as shown in Fig. 17, the suction hole 70
34 opening into the admission pipe immediately
The spring is thus contained in a lodgment of
circular section and vof suilicient depth which is
hollowed in the body of the apparatus. Con
75 seouentlv it does not project externally.
rangement facilitates the demounting and clean
ing of the starter by limiting to two parts only of
the apparatus the lodgment of the piping .that 75
lodged (Figure 19) the end of the spiral return
70 spring 24, the other end of which is engaged in a
above one of the butterfly valves 2|.
This ar
concerns it. In this embodiment, on the other
buretor is operating, since the partial vacuum
hand, the emulsion air is drawn by suction into' produced by the engine tends to draw in air, Athe
the float chamber and the emulsion is produced in flap valves 4 I, under the influence of the pressurel
the central tube 3 I, whence it is sucked directly by differences exerted l upon their faces, oscillate
the motor.
about their. pivots 42 and allow air to pass, but
The main object of this starter is _to obtain an on account of their intrinsic inertia this opening
easy start, `even at the lowest temperatures.
is onlyfeifected after a certain delay, -so that when
When the engine is idling the suction of the the butterflyy valve 2I opens, the partial vacuum,
engine is exerted bothupon the starter, the latter not diminished by the admission of air, causes a
10 being in its running position, and upon the idling
sudden entrance of fuel ‘before -the normal' equi
device. If the starter is closed the suction bears librium of pressures is' established by the opening
slowly upon the idling means.- f This idling device', of the valves 4I. This la'g in opening is obviously
the regulating of which is obtained independently very short, but it is sufficient `to occasion, when
of the control by means of the screw 21 is not a the valve does open, _a rush of fuel, which facili
15 rudimentary device but a true carburetor, though tates the establishment of the steady speed of the
small, having its own spraying nozzle and emul
motor corresponding to the functioning of` the
sifler. ' l,
emulsifying and diffusing members that come into
When running, in order to obtain the desired
position of the acceleration lever 29, the step of
20 this lever should first be engaged in one of the
holes in the disc 28, which is pierced with a ring
Aof holes, thereby enabling the acceleration lever
In this embodiment the diffusing apertures of
the emulsion members comprise perforated metal
sheets or Wire gauze 4I!` with very fine apertures
similar to those of the fuel .strainers 'I'hese
sheets 43 are placed between a conically bored
to be moved in every direction.
In order to increase the steady >speed of the ,
25 motor when it is idling it is suiìcientto move the member 44 and the emulsifler cap I 6.
'I'he function of these perforated metal-sheets
acceleration lever 29, by pushing, pulling, raising is to atomize the little drops of fuel that are sus
and so forth. This acceleration lever 29 actuates pended in the emulsion and thus to ensure the
a stepped sector 26, one of the'steps of which, by homogeneity of the mixture admitted to the en
means of the cam 25 which terminates the pivot gine. The conical boring of the members 44 im
30 22 of one of the butterfly valves 2I, opens the
parts to the aperture, taking into account the 30
latter. While this operation is being effected, a area occupied by the wires ofthe mesh, a cross
'second step on the sector 26 opens in its turn a sectional area at least equal to that of the tube
second and a third of the butterfly valves 2|. 45 which follows the emulsion.
When one of the butterfly valves 2I_ opens, the
In this embodiment?y the cap I6 is screwed dl
35 motor sucks in air through the passage formed
rectly on to the body I3 of the emulsiñer, which 35"
between the calibrated cap IIìl and thedlffuslon
duct I8 ` and sucks in already. emulsified fuel
through the emulsion body I3.
'I'he fuel, the admission of which is regulated
by the spraying nozzles I I, is in the emulsion body
I3 and in the chamber I5 Where the level is kept
constant. Air passing through the holes I1 in
the cap I6 ascends along the chamber I5, pene
trates into the interior, and emulsiiies the fuel in
45 passing through the holes I4, which are staggered
in height or grouped in the lower part of the
emulsion body I3.
itself forms the chamber, the fuel inlet nozzle in
the body I3 being continued vby the tube 45, which
communicates by holes 46 with the emulsion
chamber. The unit consisting of the member 44,
the tube 45 and the wire gauze 43 is locked in the 40
body I 3 by screwing the cap I 6 on to the said body.
'I'he fundamental feature of this carburetor de- _
vice resides lin the fact that the'air'passages and
the fuel passages -(spraying nozzles) are dis
tributed between a plurality of vaporization units, 45
which are in fact so many carburetors, the results
The fuel containedlin the chambers I5 consti- I oi' which are progressively added to one'another.
I tutes a very substantial reserve of power.
The number of butterfly valves 2| and emulsi
flers may of course vary according to the cylinder
capacity of the motors, from which it follows that
the stepped sector 26 should be of appropriate
. form, and that it may be either simple or in stages
55 according to >the number of butterfly valves` to
be controlled.
When thelbutterfly valves are fully open, whic
occurs when the accelerator is pushed to the end
of its travel, the motor is running at full speed.
If the accelerator is released the butterfly valves _
2I close automatically owing to theA closing springs
24, which control the pivots 22 upon which they
are fixed.
In the embodiment o’f the invention, illustrated
The- shapes, details and dimensions of each of
»the parts of the invention may ofcourse be va 50
ried without impairing the principle thereof.
What I claim is:
1. A carburetor device for internal combustion
engines, comprising a single intakel manifold for
the engine, a plurality of carburetor elements, dif 55
fusion tubes corresponding to the various car
buretor elements, these diffusion tubes converging
into the said intake manifold, p_ivoted butterfly
valves associated with the carburetor elements,
cams secured to the ends of the pivots of the but
terfly valves, a stepped sector adapted to act by
its steps upon the said cams, and a single oscillat
ing control lever rigidly associated with the
stepped sector, -the said oscillating lever being
adapted to act on the said valves through the 65
said sector so as to cause the actions of any of the
is not working, by flap valves 4I, which’tend- con- I carburetor elements to be added together to sup
65 ` in Figs. 15, 16, and 17 of the drawings, the air inlet
I9 of`the apparatus is shut off, when the apparatus
Astantly to assume their‘ closed positions, either
ply to the engine the quantity of carburetted mix
under the mere action of gravity, as shown in the
drawings, or under the action of springs or other
suitable devices. In the embodiment illustrated,`
the flap valves 4I consist' of two metal blades
ture necessary for its operation.
‘ 2. A carburetor device for internal combustion
articulated longitudinally upon pivots 42 arranged
`above their centres of gravity and a short distance
75 away from their middle planes. When the car
engines as claimed in claim l, further comprising
return springs constantly tending to close the but
terfly valves.
3. A carburetor device for internal combustion
engines as claimed in claim l, further comprising '
2,053,831 ‘ `
a' suction air passage, and oscillating flap valves
located in the suction air passage, the said valves
having an appreciable amount of inertia, so as to
lag in opening.
, 4. A carburetor device for internal combustion
engines comprising an ‘intake manifold; a con
stant level fuel chamber; a plurality of carburetor
elements each constituted by a nozzle in commu
nication with said constant level fuel chamber, a
spraying emulsiñer, 1 andra communication be
tween said nozzle and said emulsiiìer; diifusion
tubes leading from said emulsiflers respectively
and in communication with said intake manifold;
pivoted butterfly valves in said diffusion tubes
15 above said emulsiflers; and a common oscillating
member for controlling said butterfly valves, the
axes of the pivots of said butterfly valves being
arranged parallel to each other and on an arc of
a circle the center of which passes through the
20 axis of oscillation of said control member, which
said axis of oscillation is itself parallel to the axes
of the butterfly valves.
- 5. A carburetor device> as claimed in claim 4,
in which the diffusion tubes of the carburetor ele
25 ments are in crossA section arranged in staggered
. 6. A carburetor device asv claimed in claim 4,
engines, comprising an intake manifold for the
engine; a constant level fuel chamber; a plurality
of carburetor elements each constituted by a noa
zle in communication with said constant level fuel
chamber, a spraying emulsifler, and a communi
cation between >said nozzle and said emulsifier;
diffusion tubes leading from said emulsifiers re
spectively and in communication with said intake
manifold; plvoted butterfly valves associated with
the carburetor elements; an oscillating control
ling member for the several carburetor elements,
the said oscillating controlling member being
adapted to cause the actions of any of the car
buretor elements to be added together to supply
to the engine the quantity of carbureted mixture 15
necessary for its operation, the axes of the pivots
of the butterfly valves` being arranged parallel
with each other and with the axis of the said
controlling member and being arranged on an arc
of a circle, the center of which lies on the said'axis 20
of oscillation of the controlling member; a well
sunk in the constant level fuel chamber; a starter
consisting `of an emulslfying spraying nozzle im
'mersed in the said well; and ducts connecting the
said spraying nozzle to the intake manifold.
8. A carburetor device as claimed in claim 4,
further comprising wire gauze strainers across the
wherein one of the carburetor elements is adapted apertures by which the carburetor elements dis
for use for the engine in idling, and screw means charge into the intake manifold and conical noz
30 are provided for regulating the idling carburetor zles preceding the strainers.
'7. A carburetor device for internal combustion '
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