US3455260A - Carburettors for internal combustion engines - Google Patents

Carburettors for internal combustion engines Download PDF

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Publication number
US3455260A
US3455260A US589094A US3455260DA US3455260A US 3455260 A US3455260 A US 3455260A US 589094 A US589094 A US 589094A US 3455260D A US3455260D A US 3455260DA US 3455260 A US3455260 A US 3455260A
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Prior art keywords
fuel
valve
switch
electromagnet
engine
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Expired - Lifetime
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US589094A
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English (en)
Inventor
Andre Louis Mennesson
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Societe Industrielle de Brevets et dEtudes SIBE
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Societe Industrielle de Brevets et dEtudes SIBE
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M3/00—Idling devices for carburettors
    • F02M3/02—Preventing flow of idling fuel
    • F02M3/04—Preventing flow of idling fuel under conditions where engine is driven instead of driving, e.g. driven by vehicle running down hill
    • F02M3/045—Control of valves situated in the idling nozzle system, or the passage system, by electrical means or by a combination of electrical means with fluidic or mechanical means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/19—Degassers

Definitions

  • the carburettor includes means for controlling the fuel flow in an idle fuel passage.
  • these means prevent this fuel flow when the ignition switch is ofi When the ignition switch is on, these means are responsive both to a device (which is itself responsive to the engine speed) and switching means (which are themselves responsive to the position of the throttle valve) for (1) permitting this flow of fuel when the engine speed is below a given value and said throttle valve is simultaneously closed, (2) permitting this flow when said throttle valve is open and (3) preventing this flow when the engine speed is above said given value and said throttle valve is simultaneously closed.
  • the present invention relates to internal combustion engine carburettors having means responsive either directly or indirectly to the position of the main throttle valve (also called throttle member in the present specification and claims) in the carburettor induction pipe for stopping at least partly the feed of fuel to said induction during the engine slowing down periods that follow the closing of said throttle valve.
  • the invention is more especially concerned with carburettors for motor car engines.
  • the stopping (or reduction) of fuel feed to an internal combustion engine when it is driven by the vehicle, instead of driving it, has the advantages, on the one hand,
  • the object of the present invention is to provide an improved construction of carburettor taking into account the number of revolutions per minute of. the engine.
  • FIG. 1 is a diagrammatic view, partly in vertical sec- 3,455,260 Patented July 15, 1969 tion and partly in elevation of a carburettor made according to a first embodiment of the invention, in the position corresponding to idling;
  • FIGS. 2 and 3 show some elements of the carburettor of FIG. 1 in positions corresponding respectively to a slowing down of the engine and the normal running there-
  • FIG. 4 is a view similar to FIG. 1 showing a second embodiment of a carburettor according to the present invention, in idling position, the dot-and-dash lines indicating the normal running position of the throttle valve;
  • FIG. 5. is an elevational view with portions in section of a carburettor made according to a third embodiment of the invention in the position corresponding to idle of the engine; p
  • FIG. 6 is an elevationalview with parts in section of a fourth embodiment of the invention in the position corresponding to the stopping of theengine;
  • FIG. 7 is a view similar to FIG. 6 but corresponding to the normal running of the engine
  • the carburettor is of the downdraught type and comprises an induction pipe 1 provided with a main throttle valve consisting of a butterfly valve mounted on a spindle 3. On this spindle are fixed a first lever (not shown) adapted to be acted upon by the driver and a second lever 4 carrying an adjustment screw 5 which cooperates with an abutment 6 to determine the idling position of the throttle valve.
  • a conduit 7 opens into induction pipe 1 downstream of throttle valve 2 through an idling orifice 8 adjustable by a screw 9. This conduit 7 is fed with an air and fuel mixture supplied from a constant level chamber 10.
  • Conduit 7 also communicates with induction pipe 1 through an orifice 11 located in such manner that it passes from upstream to downstream position with respect to throttle valve 2 when said valve is opened.
  • the total delivery rate increases gradually from idling to normal running position.
  • the main jet means and the usual accessories of the carburettor have not been shown because they are not necessary to understand the present invention.
  • the ignition circuit of the engine comprises an electric battery 12, a switch 13, a contact breaker 14 and an ignition coil 15.
  • Reference numerals 16 and 17 designate t e conductors of the ignition primary circuit located on either side of the primary winding of coil 15 and connected respectively to switch 13 and contact breaker 14.
  • the means for acting upon the delivery of fuel during the engine slowing down periods comprise a fuel feed valve 18 adapted to cooperate with a seat 19 so as to be able to stop, either wholly or at least mostly, the delivery of fuel when the engine speed is above a predetermined limit e.g. above idling speed.
  • seat 19 is provided in conduit 7.'In order to make the last mentioned means responsive to variations of the number of revolutions per minute of the engine, there is provided a device 20 capable of measuring this number of revolutions per minute by counting the number of breaks of the ignition current per minute produced by the contact breaker 14.
  • Valve 18 is controlled by an electromagnet 21, through the movable core 22 thereof, against the action of a spring 23.
  • device comprises a circuit 24 a conductor 25 connected with conductor 17, and also a relay 26. adapted to connect one of the terminals 21a of electromagnet 21 to conductor 16 through a conductor 27, that is to say to connect said terminal 21a with battery 12 when, at the same time, switch 13 is closed and circuit 24 records a number of revolutions per minute of the engine higher than that corresponding to idling.
  • the other terminal 21b of electromagnet 21 is grounded thruogh a switch linked to the position of throttle valve 2. More particularly, in the embodiment of FIGS. 1 to 3, this last mentioned switch consists of a flexible conductor blade 28 carried by an insulating block 29 and adapted to be contacted by a stud 30 operatively connected with throttle valve 2.
  • said stud 30 consists of a screw "carried by a second arm 4a of lever 4, through which stud 30 is grounded.
  • blade 28, insulating block 29 and stud 30 of FIGS. 1 to 3 are replaced by a deformable blade 28a, a block 29a and a stud 30a respectively.
  • Stud 30a is connected indirectly with throttle valve 2 with a portion of induction pipe 1 located in such manner as to shift from a downstream position to an upstream position with respect to throttle valve 2 when said throttle valve is opened.
  • Stud 30a is grounded through diaphragm 31 and casing 33 which, in this case, are both metallic.
  • blade 28 or 28a is in contact with stud 30 or 30a only if throttle valve 2 is closed and if, in the second case, the internal combustion engine is running and sucking in air through pipe 1.
  • FIGS. 1 to 3 The operation of the embodiment of FIGS. 1 to 3 is as follows:
  • relay 26 permits current to flow therethrough as in the case of FIG. 3 (number of revolutions per minute of the engine higher than the above mentioned limit) but, furthermore, stud 30 is in contact with blade 28 as in the case of FIG. 1 (throttle valve 2 closed) whereby electromagnet 21 is energized and therefore valve 18 closes idling conduit 7.
  • the slowing down has become sufiicient to make the number of revolutions per minute of the engine to drop below the above mentioned limit, the elements again come into their positions of FIG. 1.
  • switch 13 cuts off from battery 12 not only the ignition circuit but also the relay 26 of device 20.
  • FIG. 4 shows the application of the invention to a carburettor different from the conventional carburettor with fixed choke means.
  • the carburettor is of the type where the cross sections for air and fuel are variable.
  • Such a carburettor comprises a main pipe 36 provided with a throttle valve 2 actuated through a spindle 3.
  • the device for automatically adjusting the cross section of the air passage in accordance with the flow rate comprises a sliding valve 37 urged toward the inside of pipe 36 by a spring 38 and in the opposed direction by the effect of the suction existing in chamber 39 extending between sliding valve 37 and throttle valve 2, and this owing to a hole 40 transmitting said suction to adiaphragm 41.
  • diaphragm 41 forms a partition between two chambers 42 and 43.
  • the lower chamber 42 is connected with the atmosphere whereas the upper chamber 43 is closed by a lid 44.
  • sliding valve 37 occupies a position such that the effect of the suction from chamber 39 upon diaphragm 41 is balanced by the action of spring 38.
  • the fuel flow rate is adjusted by a needle 45 of suitable profile movable together with sliding valve 37 and which determines the cross section of the annular space left between itself and a calibrated orifice 46 surrounding it.
  • Fuel is fed through a conduit 47 from a constant level chamber analogous to chamber 1 0 of FIG. 1 and which is connected with the atmosphere or with the carburettor air inlet.
  • air and fuel are fed under the same pressure difference, to wit, the difference between atmospheric pressure and the pressure existing in chamber 39. It sufiices to have the flow passage sections determined respectively by sliding valve 37 (air) and needle 45 (fuel) substantially proportional to each other to obtain a constant richness of the fuel and air mixture fed to the internal combustion engine.
  • a device analogous to that shown by FIGS. 1 to 3.
  • this device comprises electromagnet 21, resilient blade 28 and device 20,
  • the present case differs from those above described in that the feed of fuel under idling conditions does not take place through a special conduit but through the annular passage between calibrated orifice 46 and needle 45.
  • valve 18a In this case electromagnet 21 fed as above described, is made to act upon a valve 18a against the action of a spring 23a, this valve 18a being capable of closing an orifice 48 which communicates with pipe 36 downstream of throttle valve 2. Orifice 48 leads to a conduit 49 provided with a calibrated orifice 50 and which opens into chamber 43.
  • the operation of valve 1801 takes place in a direction opposed to that of the vlave 18 of the proceeding embodiments since valve 18a tends to be closed by spring 23a and to be opened by electromagnet 21.
  • valve 18a which cooperates with a seat 1911 provided in'conduit 7, is adapted to be opened by electromagnet 21 against the action of a spring 23b and the device 20b for controlling said electromagnet 21 causes current '[O flow through relay 26b when it records a speed of the internal combustion engine lower than the aboveindicatedlimit (circuit 24b being arranged as the circuit 24 of FIGS.
  • two feed circuits are provided in shunt with each other for electromagnet 21, vto wit, a first circuit passing through relay 26b and through a first switch connected with main throttle valve 2 and a second circuit passing through a second switch connected with said main throttle valve 2, this second circuit being independent of relay 26b.
  • FIGS. 6 and 7 these two switches are controlled by a resilient contact blade 28b permanently connected with the terminal 21a of the winding of electromagnet 21 and operated by a projection 4b carried by arm 4a rigid with the spindle 3 of throttle valve 2.
  • This blade 28b cooperates, on one sidethereof, with a contact blade 51 connected to conductor 16 through relay 26b and, on the other side, with contact blade 52 which is directly connected to said conductor 16.
  • the other terminal 21b of the winding of electromagnet 21 is permanently grounded.
  • Blade 285 tends, by its own resiliency, to be in contact with blade 52 but it is brought into contact with blade 51 by projection 4b when throttle valve 2 is closed.
  • Blades 28a, 51 and 52 are carried by an insulating block 29b and projection 4b either is made of insulating material or is carried by an insulated portion of blade 28b.
  • FIGS. 6 and 7 works as follows:
  • Electromagnet 21 remains energized, but now it is through the second of the above mentioned circuits, including blades 52 and 28b and valve 18b remains open. Relay 26b is in its non conducting position.
  • relay 26b permits the flow of current therethrough and electromagnet 21 opens valve 18b. The idling air and fuel mixture then flows to orifice 8.
  • Relay 26b which is rather delicate is energized (i.e. electric current flows therethrough) only during idling running, that is to say for relatively short periods. Furthermore, as soon as the ignition circuit is opened by switch 13, valve 18b closes and prevents the air and fuel mixture from reaching the engine. This avoids any risk of the engine running by self ignition, a risk which is .rather frequent in modern engines having a high compression ratio. a v V p In what precedes, it has'been deemed unnecessary to give detailed descriptions of devices 20 and 20b, because suitable types of these devices exist on the market.
  • a carburettor for said engine which comprises, in combination,
  • a throttle member in said induction pipe said throttle member being movable by an operator of the engine between a substantially closed position and a position of maximum opening, and vice-versa,
  • said fuel flow controlling means beng responsive when said ignition switch is switched on, both to said de vice and to said switching means for (1) permitting the flow of fuel through said fuel passage means when the engine speed is below a given value and said throttle member is simultaneously substantially closed,
  • said fuel flow controlling means includes a valve, resilient biasing means urging said valve towards a substantially closed postion which prevents, at least partly, the flow of fuel through said fuel passage means, and an electromagnet disposed in said electric circuit, in series with said ignition switch, said electric circuit further including a source of current in series with said ignition switch, said electromagnet being adapted, when energized, to open said valve which permits the flow of fuel through said fuel passage means, and said electromagnet being further adapted, when de-energized, to release said valve whereby said resilient biasing means can return said valve to its substantially closed position,
  • said electric circuit includes two branches, namely a first branch and a second branch, in parallel with each other but in series with said electromagnet, said ignition switch and said source of current, for energizing said electromagnet
  • said first branch including a relay operative by said device and adapted to be energized and hence closed when the engine speed is lower than said given value and de-energized and hence open when said engine speed is higher than said given value
  • said switching means comprising a first switch and a second switch, said first switch being disposed in said first branch and said second switch being disposed in said second branch, said first switch being closed and said second switch being open when said throttle member is substantially closed, and said first switch being open and said second switch being closed for all other positions of said throttle member.
  • a carburettor for said engine which comprises, in combination,
  • a throttle member in said induction pipe said throttle member being movable by an operator of the engine between a substantially closed position and a position of maximum opening, and vice-versa,
  • a device responsive to the engine speed, said device comprising counting means responsive to the number per unit time of current breaks in said ignition circuit,
  • said fuel flow controlling means being responsive, when said ignition switch is switched on, both to said device and to said switching means for (1) permitting the flow of fuel through said fuel passage means when the engine speed is below a given value and said throttle member is simultaneously substantially closed,
  • said fuel flow controlling means includes a valve, resilient biasing means urging said valve towards a substantially closed position which prevents, at least partly, the flow of fuel through said fuel passage means, and an electromagnet disposed in said electric circuit, in series with said ignition switch, said electric circuit further including a source of current in series with said ignition switch, said electromagnet being adapted, when energized, to open said valve which permits the flow of fuel through said fuel passage means, and said electromagnet being further adapted, when de-energized, to release said valve whereby said resilient biasing means can return said valve to its substantially closed position,
  • said electric circuit includes two branches, namely a first branch and a second branch, in parallel with each other but in series with said electromagnet, said ignition switch and said source of current, for energizing said electromagnet
  • said first branch including a relay operative by said device and adapted to be energized and hence closed when the engine speed is lower than said given value and de-energized and hence open when said engine speed is higher than said given value
  • said switching means comprising a :first switch and a second switch, said first switch being disposed in said first branch and said second switch being disposed in said second branch, said first switch being closed and said second switch being open when said throttle member is substantially closed, and said first switch being open and said second switch being closed for all other positions of said throttle member.
  • said throttle member is adapted to engage References Cited mechanically said third contact blade when said throttle member is substantially closed to bring said UNITED STATES PATENTS third contact blade out of contact with said second 312511352 5/1966 3,153,746 10/1964 Atkinson 123-102 X contact blade and into contact with said first contact blade, and saidth throttle member is further adapted to release said ird contact blade for all other positions of said throttle member to permit said third WENDELL BURNS Pnmary Exammer contact blade to move, by its own resiliency, out of U S Cl X R contact with said first contact blade and into contact 10 30 3O 123 102 with said second contact blade.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Means For Warming Up And Starting Carburetors (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
US589094A 1965-10-25 1966-10-24 Carburettors for internal combustion engines Expired - Lifetime US3455260A (en)

Applications Claiming Priority (1)

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FR36134A FR1461577A (fr) 1965-10-25 1965-10-25 Perfectionnements apportés aux dispositifs d'alimentation en combustible pour moteurs à explosion

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FR (1) FR1461577A (enEXAMPLES)
GB (1) GB1099350A (enEXAMPLES)
SE (1) SE307260B (enEXAMPLES)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626912A (en) * 1969-03-28 1971-12-14 Fernand Grosclaude Device for regulating the supply of carburant to an internal combustion engine
US3630180A (en) * 1969-06-02 1971-12-28 Rene Bouteleux Device for balanced homogenization of air and liquid fuel mixtures in internal combustion engines
US3683877A (en) * 1968-12-09 1972-08-15 Brev Et Etudes S I B E Soc Ind Fuel feed devices for internal combustion engines
US3735742A (en) * 1969-10-22 1973-05-29 Nissan Motor Engine overrun preventing device for internal combustion engine
US3779530A (en) * 1970-03-31 1973-12-18 Zenith Carburetter Co Ltd Carburetors
US3906909A (en) * 1970-10-24 1975-09-23 Alfa Romeo Spa Internal combustion engine of the fuel injection type having means for reducing the emission of unburned products with the exhaust gases
US3952076A (en) * 1974-03-21 1976-04-20 Regie Nationale Des Usines Renault Carburettors
US3978175A (en) * 1975-05-12 1976-08-31 General Motors Corporation Engine air-fuel ratio control means
DE2615712A1 (de) * 1975-04-11 1976-10-21 Dba Sa Verfahren und schaltung zur ansaugsteuerung von luft-kraftstoffgemisch fuer einen verbrennungsmotor
US4124662A (en) * 1974-05-02 1978-11-07 Nissan Motor Company, Limited Carburetor and method of operating same
US4152121A (en) * 1976-05-26 1979-05-01 Nederlandse Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek Ten Behoeve Van Nijverheid, Handel En Verkeer Installation for supplying gaseous fuels, such as LPG or natural gas, to a combustion engine
US4156405A (en) * 1976-10-05 1979-05-29 Walter Franke Internal combustion engine installation
US4167547A (en) * 1977-09-17 1979-09-11 Hitachi, Ltd. Air valve type carburetor
US4253437A (en) * 1978-01-30 1981-03-03 Toyo Kogyo Co., Ltd. Fuel control means for internal combustion engines
US4300501A (en) * 1977-12-28 1981-11-17 Nissan Motor Company, Limited Apparatus for controlling the rotational speed of an I.C. engine in an idling operation
US4341723A (en) * 1980-08-26 1982-07-27 Hidenori Hirosawa Variable venturi carburetor
US4461252A (en) * 1982-03-17 1984-07-24 Weber S.P.A. Carburetor fitted with a device for feeding the engine with lean mixture during accelerator release
US4498439A (en) * 1982-04-13 1985-02-12 Weber S.P.A. Carburetor fitted with electromagnetic devices for intercepting the flow of fuel during accelerator release
US4506770A (en) * 1981-05-12 1985-03-26 Luk Lamellen Und Kupplungsbau Gmbh Automatic motor and clutch controls
US4577597A (en) * 1981-06-18 1986-03-25 Honda Giken Kogyo Kabushiki Kaisha Method and apparatus for supplying fuel to internal combustion engine
EP0207010A1 (en) * 1985-06-17 1986-12-30 FIAT AUTO S.p.A. Electro-pneumatic device for controlling the flow of fuel to a carburation engine for motor vehicles
US20070243496A1 (en) * 2004-02-12 2007-10-18 Honeywell Technologies Sarl Mixing Device for Mixing Gas and Combustion Air For a Gas Burner and Gas Burner
US20110081619A1 (en) * 2009-10-06 2011-04-07 Honeywell Technologies Sarl Regulating device for gas burners
US20110223551A1 (en) * 2010-03-09 2011-09-15 Honeywell Technologies Sarl Mixing device for a gas burner

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1305991A (enEXAMPLES) * 1969-02-05 1973-02-07
GB2000230B (en) * 1977-06-14 1982-02-03 Carson T Improvements relating to the control of fuel mixtures for internal combustion engines
FR2414633A1 (fr) * 1978-01-12 1979-08-10 Utilisation Ration Gaz Regulateur de debit de carburant pour carburateur
EP0079763A1 (en) * 1981-11-16 1983-05-25 John Eastman Barnes Idle mixture adjusting device with fuel cut-off during deceleration
IT1181553B (it) * 1984-05-24 1987-09-30 Dante Chierico Dispositivo elettronico da installare su autoveicoli funzionanti a benzina o a gas,atto a limitare il consumo di carburante
IT1182512B (it) * 1985-07-12 1987-10-05 Fiat Auto Spa Dispositivo elettropneumatico ad azione combinata proporzionale derivativa per il controllo del flusso del carburante in un motore a carburazione per autoveicoli
GB8524922D0 (en) * 1985-10-09 1985-11-13 Elec & Eltek Co Ltd Mixture control system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153746A (en) * 1961-07-03 1964-10-20 Duane E Atkinson Internal combustion engine overspeed control
US3251352A (en) * 1964-03-24 1966-05-17 Walker Brooks Delayed ignition shut off after engine stops
US3310044A (en) * 1965-03-26 1967-03-21 Bruce T Haverstick Electrically operated solenoid cutoff valve for gasoline carburetors

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153746A (en) * 1961-07-03 1964-10-20 Duane E Atkinson Internal combustion engine overspeed control
US3251352A (en) * 1964-03-24 1966-05-17 Walker Brooks Delayed ignition shut off after engine stops
US3310044A (en) * 1965-03-26 1967-03-21 Bruce T Haverstick Electrically operated solenoid cutoff valve for gasoline carburetors

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683877A (en) * 1968-12-09 1972-08-15 Brev Et Etudes S I B E Soc Ind Fuel feed devices for internal combustion engines
US3626912A (en) * 1969-03-28 1971-12-14 Fernand Grosclaude Device for regulating the supply of carburant to an internal combustion engine
US3630180A (en) * 1969-06-02 1971-12-28 Rene Bouteleux Device for balanced homogenization of air and liquid fuel mixtures in internal combustion engines
US3735742A (en) * 1969-10-22 1973-05-29 Nissan Motor Engine overrun preventing device for internal combustion engine
US3779530A (en) * 1970-03-31 1973-12-18 Zenith Carburetter Co Ltd Carburetors
US3906909A (en) * 1970-10-24 1975-09-23 Alfa Romeo Spa Internal combustion engine of the fuel injection type having means for reducing the emission of unburned products with the exhaust gases
US3952076A (en) * 1974-03-21 1976-04-20 Regie Nationale Des Usines Renault Carburettors
US4124662A (en) * 1974-05-02 1978-11-07 Nissan Motor Company, Limited Carburetor and method of operating same
DE2615712A1 (de) * 1975-04-11 1976-10-21 Dba Sa Verfahren und schaltung zur ansaugsteuerung von luft-kraftstoffgemisch fuer einen verbrennungsmotor
US4091777A (en) * 1975-04-11 1978-05-30 Societe Anonyme D.B.A. Electronic control circuit for a carburetor device
US3978175A (en) * 1975-05-12 1976-08-31 General Motors Corporation Engine air-fuel ratio control means
US4152121A (en) * 1976-05-26 1979-05-01 Nederlandse Organisatie Voor Toegepast Natuurwetenschappelijk Onderzoek Ten Behoeve Van Nijverheid, Handel En Verkeer Installation for supplying gaseous fuels, such as LPG or natural gas, to a combustion engine
US4156405A (en) * 1976-10-05 1979-05-29 Walter Franke Internal combustion engine installation
US4167547A (en) * 1977-09-17 1979-09-11 Hitachi, Ltd. Air valve type carburetor
US4300501A (en) * 1977-12-28 1981-11-17 Nissan Motor Company, Limited Apparatus for controlling the rotational speed of an I.C. engine in an idling operation
US4253437A (en) * 1978-01-30 1981-03-03 Toyo Kogyo Co., Ltd. Fuel control means for internal combustion engines
US4341723A (en) * 1980-08-26 1982-07-27 Hidenori Hirosawa Variable venturi carburetor
US4506770A (en) * 1981-05-12 1985-03-26 Luk Lamellen Und Kupplungsbau Gmbh Automatic motor and clutch controls
US4577597A (en) * 1981-06-18 1986-03-25 Honda Giken Kogyo Kabushiki Kaisha Method and apparatus for supplying fuel to internal combustion engine
US4461252A (en) * 1982-03-17 1984-07-24 Weber S.P.A. Carburetor fitted with a device for feeding the engine with lean mixture during accelerator release
US4498439A (en) * 1982-04-13 1985-02-12 Weber S.P.A. Carburetor fitted with electromagnetic devices for intercepting the flow of fuel during accelerator release
EP0207010A1 (en) * 1985-06-17 1986-12-30 FIAT AUTO S.p.A. Electro-pneumatic device for controlling the flow of fuel to a carburation engine for motor vehicles
US20070243496A1 (en) * 2004-02-12 2007-10-18 Honeywell Technologies Sarl Mixing Device for Mixing Gas and Combustion Air For a Gas Burner and Gas Burner
US20110081619A1 (en) * 2009-10-06 2011-04-07 Honeywell Technologies Sarl Regulating device for gas burners
US8668491B2 (en) 2009-10-06 2014-03-11 Honeywell Technologies Sarl Regulating device for gas burners
US20110223551A1 (en) * 2010-03-09 2011-09-15 Honeywell Technologies Sarl Mixing device for a gas burner
US8512035B2 (en) 2010-03-09 2013-08-20 Honeywell Technologies Sarl Mixing device for a gas burner

Also Published As

Publication number Publication date
GB1099350A (en) 1968-01-17
FR1461577A (fr) 1966-02-25
DE1526748B2 (de) 1975-06-26
SE307260B (enEXAMPLES) 1968-12-23
DE1526748A1 (de) 1970-06-11

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