EP0032900A1 - Process and nozzle for providing a carburated mixture at idle running of an explosion engine - Google Patents

Process and nozzle for providing a carburated mixture at idle running of an explosion engine

Info

Publication number
EP0032900A1
EP0032900A1 EP80901072A EP80901072A EP0032900A1 EP 0032900 A1 EP0032900 A1 EP 0032900A1 EP 80901072 A EP80901072 A EP 80901072A EP 80901072 A EP80901072 A EP 80901072A EP 0032900 A1 EP0032900 A1 EP 0032900A1
Authority
EP
European Patent Office
Prior art keywords
idle
chamber
air
fuel
swirl chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP80901072A
Other languages
German (de)
French (fr)
Inventor
Alain Gaget
Guy Juillot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7919281A external-priority patent/FR2462566A2/en
Application filed by Individual filed Critical Individual
Publication of EP0032900A1 publication Critical patent/EP0032900A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F02M3/08—Other details of idling devices
    • F02M3/10—Fuel metering pins; Nozzles
    • 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
    • F02M3/05—Pneumatic or mechanical control, e.g. with speed regulation
    • 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
    • Y10S261/38—Needle valves

Definitions

  • the invention relates to a method for producing an idling fuel mixture, intended to be delivered into an intake manifold of an internal combustion engine; it extends to an idle jet designed to be mounted on an auxiliary idle carburetor with a view to implementing the method of the invention.
  • the present invention proposes to remedy the shortcomings of known idling jets.
  • An objective of the invention is in particular to indicate an improved process for producing the idling fuel mixture, making it possible to ensure excellent homogeneity of this mixture. Another objective of the invention is thus to allow significant savings in fuel consumption, in particular when driving in built-up areas.
  • Another objective of the invention is to allow a gradual transition from idle speed to speeds

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Glanulating (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

Le procede consiste a effectuer le melange carbure en deux phases: une phase de premelange dans une chambre de turbulence (10) consistant a, melanger le debit de carburant Cr avec un debit d'appoint Aa, faible par rapport au debit d'air de ralenti Ar en vue d'obtenir un premelange fortement carbure, et une phase de melange final realisee dans une seconde chambre, dite chambre de melange (5) consistant a melanger le premelange Mp au debit d'air de ralenti Ar. Un pointeau (11) permet d'adjuster le debit de carburant en fonction du regime du moteur.The process consists in carrying out the carbide mixture in two phases: a premixing phase in a swirl chamber (10) consisting in mixing the fuel flow Cr with a make-up flow Aa, low compared to the air flow of slowed Ar in order to obtain a strongly carbide premix, and a final mixing phase carried out in a second chamber, called a mixing chamber (5) consisting in mixing the premix Mp at the slow air flow Ar. A needle (11 ) allows the fuel flow to be adjusted according to the engine speed.

Description

PROCEDE ET GICLEUR POUR LA REALISATION D'UN MELANGE CARBURE DE RALENTI DANS UN MOTEUR A EXPLOSION METHOD AND NOZZLE FOR MAKING AN IDLE CARBIDE MIXTURE IN AN EXPLOSION ENGINE
L'invention concerne un procédé de réalisation d'un mélange carburé de ralenti, destiné à être délivré dans une tubulure d'admission d'un moteur à explosion ; elle s'étend à un gicleur de ralenti appelé à se monter sur un carburateur auxiliaire de ralenti en vue de la mise en oeuvre du procédé de l'invention.The invention relates to a method for producing an idling fuel mixture, intended to be delivered into an intake manifold of an internal combustion engine; it extends to an idle jet designed to be mounted on an auxiliary idle carburetor with a view to implementing the method of the invention.
On sait que, dans un moteur à explosion, lorsque le papillon des gaz du carburateur principal est fermé, le régime de ralenti est en général assuré par un carburateur auxiliaire pourvu d'un gicleur de ralenti. Dans les gicleurs connus du type à pointeau, il existe une chambre unique pour réaliser le mélange air-carburant. Ce type de gicleur présente plusieurs inconvénients. En premier lieu, le mélange réalisé présente une mauvaise homogénéité et il s'ensuit des surconsommations notables en carburant lorsque le moteur fonctionne au ralenti. Or, pour la conduite en agglomération, la consommation à ce régime a une influence très importante sur la consommation moyenne du véhicule ; de plus, les gaz d'émission, brûlés imparfaitement au ralenti, sont une source de pollution grave. /point__eau mob_ile/ De plus, les g ~icleurs de ralenti connus, àIt is known that, in an internal combustion engine, when the throttle valve of the main carburetor is closed, the idle speed is generally provided by an auxiliary carburetor provided with an idle jet. In known nozzles of the needle type, there is a single chamber for producing the air-fuel mixture. This type of nozzle has several drawbacks. In the first place, the mixture produced exhibits poor homogeneity and significant overconsumption of fuel ensues when the engine is operating at idle speed. However, for driving in built-up areas, consumption at this speed has a very significant influence on the average consumption of the vehicle; moreover, the emission gases, imperfectly burnt at idle, are a source of serious pollution. / point__eau mob_ile / In addition, the known slow motion g ~ icleurs, at
/ sont fermés de façon relativement brutale lorsque le régime du moteur quitte le régime du ralenti pour passer à un régime intermédiaire plus élevé ; il s'ensuit parfois des à-coups dans le fonctionnement du moteur, avec éventuellement des risques de calage./ are closed relatively suddenly when the engine speed leaves idle speed to switch to a higher intermediate speed; this sometimes results in jerks in the operation of the engine, possibly with the risk of stalling.
La présente invention se propose de remédier aux défauts des gicleurs de ralenti connus.The present invention proposes to remedy the shortcomings of known idling jets.
Un objectif de l'invention est en particulier d'indiquer un procédé perfectionné pour la réalisation du mélange carburé de ralenti ,permettant d'assurer une excellente homogénéité de ce mélange. Un autre objectif de l'invention est, ainsi, d'autoriser des économies notables de consommation de carburant, en particulier en cas de conduite en agglomération.An objective of the invention is in particular to indicate an improved process for producing the idling fuel mixture, making it possible to ensure excellent homogeneity of this mixture. Another objective of the invention is thus to allow significant savings in fuel consumption, in particular when driving in built-up areas.
Un autre objectif de l'invention est de permettre un passage progressif du régime de ralenti aux régimes, Another objective of the invention is to allow a gradual transition from idle speed to speeds,

Claims

REVENDICATIONS
1/ - Procédé de réalisation d'un mélange carburé de ralenti Mr destiné a être délivré vers une tubulure d'admission d'un moteur à explosion, du type dans lequel un débit de carburant de ralenti Cr variable par l'effet de dépression engendrée par le moteur est mélangé avec un débit d'air de ralenti Ar dans un carburateur auxiliaire de ralenti, caractérise en ce que :1 / - Process for producing an idling fuel mixture M r intended to be delivered to an intake manifold of an internal combustion engine, of the type in which an idling fuel flow rate C r variable by the effect of depression generated by the engine is mixed with a flow of idle air A r in an auxiliary idle carburetor, characterized in that:
. on transmet la dépression engendrée par le moteur vers une première chambre, dite de turbulence, en vue d'agir sur un pointeau mobile dans une portée fixe,. the vacuum generated by the engine is transmitted to a first chamber, called a turbulence chamber, with a view to acting on a mobile needle in a fixed range,
. on admet le carburant de ralenti Cr dans ladite chambre de turbulence en l'amenant à traverser le passage compris entre le pointeau mobile et sa portée, . on envoie dans ladite chambre de turbulence un débit d'air d'appoint Aa faible par rapport au débit d'air de ralenti Ar en vue d'obtenir un prémélange fortement carburé Mp d'air et de carburant,. the idling fuel C r is admitted into said swirl chamber by causing it to pass through the passage between the mobile needle and its reach,. a low flow rate of make-up air Aa in relation to the idle air flow A r is sent into said swirl chamber in order to obtain a highly carburized premix M p of air and fuel,
. on mélange dans une seconde chambre, d i t e chambre de mélange, le prémélange Mp au débit d'air de ralenti Ar en vue de réaliser le mélange carburé de ralenti Mr.. the premix M p is mixed in a second chamber, called the mixing chamber, with the idle air flow A r in order to produce the idle fuel mixture M r .
2/ - Procédé selon la revendication 1, caractérisé en ce que le prémélange Mp est réalisé au moyen d ' un débit d'air d'appoint Aa compris entre 2 % et 20 % par rapport au débit d'air de ralenti Ar.2 / - Method according to claim 1, characterized in that the M w premix is made by means of an extra air flow A has between 2% and 20% relative to the idle air flow A r .
3/ - Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que le carburant de ralenti Cr est admis dans la chambre de turbulence en l'amenant à passer entre un pointeau mobile de forme très effilée et la portée fixe de celui-ci. 4 / - Procédé selon l'une des revendications 1, 2 ou 3, caractérisé en ce que le prémélange Mp est réalisé dans la chambre de turbulence en guidant vers celle-ci le débit de carburant Cr et au moins une partie de l'air d'appoint Aa selon des directions relatives perpendiculaires ou secantes s'écartant de moins de 30° de la perpendiculaire.3 / - Method according to one of claims 1 or 2, characterized in that the idling fuel C r is admitted into the swirl chamber by causing it to pass between a mobile needle of very tapered shape and the fixed range of this one. 4 / - Method according to one of claims 1, 2 or 3, characterized in that the premix M p is produced in the swirl chamber by guiding thereto the fuel flow C r and at least part of the 'make-up air A has in relative perpendicular or secant directions deviating by less than 30 ° from the perpendicular.
5/ - Procédé selon la revendication 4 , caractérisé en ce que le prémélange Mp est guidé à la sortie d e la chambre de turbulence selon une direction, d'abord radiale,centrifuge, à la sortie imm0diate de ladite chambre de turbulence lence, ensuite longitudinale vers la chambre de mélange.5 / - Method according to claim 4, characterized in that the premix M p is guided at the outlet of the swirl chamber in a direction, initially radial, centrifugal, at the immediate outlet of said swirl chamber lence, then longitudinal towards the mixing chamber.
6/ - Procédé selon l'une des revendications6 / - Method according to one of the claims
1, 2, 3, 4 ou 5, caractérisé en ce que le mélange final Mr est réalisé dans la chambre de mélange en guidant vers celle-ci l'air de ralenti Ar et le prémélange Mp selon des directions relatives perpendiculaires ou sécantes s'écartant de moins de 30° la perpendiculaire.1, 2, 3, 4 or 5, characterized in that the final mixture M r is produced in the mixing chamber by guiding the idling air A r and the premix M p towards it in relative perpendicular directions or secants deviating by less than 30 ° from the perpendicular.
7 / - Gicleur de ralenti appelé à se monter sur un carburateur auxiliaire de ralenti en vue de la mise en oeuvre du procédé conforme à l'une des revendications 1, 2, 3, 4, 5 ou 6, ledit gicleur comportant des moyens d'amenée d'air de ralenti Ar, des moyens d'évacuation du mélange carburé Mr, des moyens d'amenée de carburant Cr, une chambre de mélange (5) avec laquelle communiquent les moyens d'amenée d'air Ar et les moyens d'évacuation du mélange Mr, et un pointeau mobile (11) de réglage du débit de carburant Cr, ledit gicleur de ralenti étant caractérisé en ce qu'il comprend :7 / - Idle jet designed to be mounted on an auxiliary idle carburetor with a view to implementing the method according to one of claims 1, 2, 3, 4, 5 or 6, said jet comprising means for 'Idle air supply A r , means for discharging the fuel mixture M r , fuel supply means C r , a mixing chamber (5) with which the air supply means A communicate. r and the means for discharging the mixture M r , and a movable needle (11) for adjusting the fuel flow rate C r , said idle jet being characterized in that it comprises:
. une chambre de turbulence (10) dans laquelle est logé le pointeau mobile (11) en vue de définir avec une portée fixe (9) un passage de section variable en communication avec les moyens d'amenée de carburant Cr,. a swirl chamber (10) in which the movable needle (11) is housed in order to define with a fixed bearing surface (9) a passage of variable section in communication with the fuel supply means C r ,
. des moyens d'amenée d'air d'appoint Aa débouchant dans la chambre de turbulence (10), . et des moyens de mise en communication de la chambre de turbulence (10) et de la chambre de mélange (5).. means for supplying make-up air A a opening into the swirl chamber (10),. and means for placing the swirl chamber (10) and the mixing chamber (5) in communication.
8/ - Gicleur de ralenti selon la revendication 7, caractérisé en ce que les moyens d'amenée d'air d'appoint A Cl comprennent un canal longitudinal (13) pratiqué dans le pointeau (11) selon l'axe de celui-ci et des canaux radiaux (14) reliant à peu près en équerre ce canal longitudinal (13) avec la chambre de turbulence (10), ledit pointeau (11) et sa portée fixe (9) étant agencés pour injecter le carburant dans ladite chambre de turbulence (10) selon une direction longitudinale ou s'écartant de moins de 30° de la direction longitudinale .8 / - Idle jet according to claim 7, characterized in that the means for supplying make-up air A Cl comprise a longitudinal channel (13) formed in the needle (11) along the axis thereof and radial channels (14) connecting approximately at right angles to this longitudinal channel (13) with the swirl chamber (10), said needle (11) and its fixed bearing surface (9) being arranged to inject fuel into said pressure chamber. turbulence (10) in a longitudinal direction or deviating by less than 30 ° from the longitudinal direction.
9/ - Gicleur de ralenti selon l'une des revendications 7 ou 8, caractérisé en ce que les moyens de mise en communication de la chambre de turbulence (10) et de la chambre de mélange (5 ) comprennent des canaux radiaux (16) situés autour de la chambre de turbulence et des canaux longitudinaux (15) dans lesquels débouchent lesdits canaux radiaux, ces canaux longitudinaux (15) débouchant eux-mêmes dans la chambre de mélange ( 5 ) .9 / - Idle jet according to one of claims 7 or 8, characterized in that the means for placing the swirl chamber (10) and the mixing chamber (5) comprise radial channels (16) located around the swirl chamber and longitudinal channels (15) into which the said radial channels open, these longitudinal channels (15) themselves opening into the mixing chamber ( 5).
10/ - Gicleur de ralenti selon l'une des revendications 7, 8 ou 9, caractérisé en ce que les moyens d'amenée d'air d'appoint A comprennent des moyens de réglage (20, a 21) du débit dudit air d'appoint.10 / - Idle jet according to one of claims 7, 8 or 9, characterized in that the means for supplying make-up air A comprise means for adjusting (20, a 21) of the flow rate of said air d 'extra.
11/ - Gicleur de ralenti selon l'une des revendications 8, 9. ou 10, caractérisé en ce que le pointeau mobile (11) présente une forme conique très effilée, d'angle au sommet approximativement compris entre 10° et 30°, ledit pointeau mobile longitudinalement étant associé à des moyens élastiques ( 2 -\ ) agencés pour l'écarter de sa portée (9).11 / - Idle jet according to one of claims 8, 9. or 10, characterized in that the movable needle (11) has a very tapered conical shape, with an apex angle approximately between 10 ° and 30 °, said longitudinally movable needle being associated with elastic means (2 - \) arranged to move it away from its bearing (9).
12/ - Gicleur de ralenti selon l'une des revendications 7, 8, 9, 10 ou 11, caractérisé en ce qu'il comprend : . un corps creux (3) doté d'un filetage externe et comportant le canal (6) d'amenée d'air de ralenti12 / - Idle jet according to one of claims 7, 8, 9, 10 or 11, characterized in that it comprises :. a hollow body (3) with an external thread and comprising the idle air supply channel (6)
A et le canal (7) d'évacuation du mélange carburé Mr,A and the channel (7) for discharging the fuel mixture M r ,
. une buse (4) d ' arriv ée de carburant, logée dans le corps (3) et délimitant avec celui-ci la chambre de mélange (5), cette buse (4) comportant la chambre de turbulence (10), les moyens (15, 16) de mise en communication de la chambre de turbulence et de la chambre de mélange, la portée conique (9) de pointeau et le canal (8) d'amenée de carburant,. a fuel inlet nozzle (4), housed in the body (3) and defining therewith the mixing chamber (5), this nozzle (4) comprising the swirl chamber (10), the means ( 15, 16) for placing the swirl chamber and the mixing chamber in communication, the conical needle bearing (9) and the fuel supply channel (8),
. et le pointeau mobile (11), disposé dans la chambre de turbulence (10) et associé à des moyens (12) de coulissement axial par rapport au corps (3). ledit pointeau (11) comportant des moyens (13, 14) d'amenée d'air d'appoint Aa. 13/ - Supprimée . and the mobile needle (11), arranged in the swirl chamber (10) and associated with means (12) for axial sliding relative to the body (3). said needle (11) comprising means (13, 14) for supplying make-up air A a . 13 / - Deleted
EP80901072A 1979-07-26 1981-02-09 Process and nozzle for providing a carburated mixture at idle running of an explosion engine Withdrawn EP0032900A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7919281 1979-07-26
FR7919281A FR2462566A2 (en) 1978-12-01 1979-07-26 Slow running fuel control for IC engine - has an adjustable needle valve and mixing chamber for fuel and air

Publications (1)

Publication Number Publication Date
EP0032900A1 true EP0032900A1 (en) 1981-08-05

Family

ID=9228317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80901072A Withdrawn EP0032900A1 (en) 1979-07-26 1981-02-09 Process and nozzle for providing a carburated mixture at idle running of an explosion engine

Country Status (10)

Country Link
US (1) US4349489A (en)
EP (1) EP0032900A1 (en)
JP (1) JPS56500938A (en)
BE (1) BE884087A (en)
BR (1) BR8008766A (en)
DK (1) DK133581A (en)
ES (1) ES493056A0 (en)
IT (1) IT1141806B (en)
NO (1) NO811009L (en)
WO (1) WO1981000281A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200465776Y1 (en) * 2008-02-28 2013-03-18 주식회사 브이비엠 Building outer wall sticking style chute

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454080A (en) * 1982-03-23 1984-06-12 Fadeipca International, Corp. Fuel flow automatic modulating and economizing carburetor jet assembly
DE3604715A1 (en) * 1986-02-14 1987-08-20 Joseph Plannerer CARBURETOR FOR COMBUSTION ENGINES AND IDLE INSTALLATION COMPONENT HERE
GB8804952D0 (en) * 1988-03-02 1988-03-30 Pedersen J R C Carburettor metering systems
FR2738598A1 (en) * 1995-09-07 1997-03-14 Juillot Guy Flow regulator for carburettor
IES70513B2 (en) * 1996-03-26 1996-11-27 Barcarole Ltd A carburetor adjustment screw apparatus
IT1308627B1 (en) * 1999-02-23 2002-01-09 Ausimont Spa FLUOROELASTOMERIC COMPOSITIONS.
US6273403B1 (en) * 1999-09-12 2001-08-14 Bruce Roland Kahlhamer Performance carburetor
US7643602B2 (en) * 2005-09-30 2010-01-05 Freescale Semiconductor, Inc. Method and system for estimating frequency offsets
US9581380B1 (en) 2007-07-20 2017-02-28 Carlos Quesada Saborio Flexible refrigeration platform
US9285147B1 (en) 2009-09-14 2016-03-15 Carlos Quesada Saborio Relocatable refrigeration system with pendulum within separator and accumulator chambers
US8443838B1 (en) * 2009-10-01 2013-05-21 Carlos Quesada Saborio Refrigerant control valves
US20140182827A1 (en) 2012-11-30 2014-07-03 Carlos Quesada Saborio Tubing Element for a Heat Exchanger

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR26437E (en) * 1922-06-02 1923-12-01 Dual emulsion carburetor
BE411909A (en) * 1934-10-24 1935-11-30
FR1159694A (en) * 1956-08-13 1958-07-01 Carburetor for internal combustion engines
US2962269A (en) * 1958-04-10 1960-11-29 Ephraim H Stanton Needle valve assembly and associated carburetor assembly
US3313532A (en) * 1964-09-08 1967-04-11 Acf Ind Inc Anti-smog device
US3408054A (en) * 1967-07-26 1968-10-29 Walker Brooks Carburetor
GB1239285A (en) * 1967-08-28 1971-07-14
FR2264981B1 (en) * 1974-03-21 1979-03-16 Peugeot & Renault
US4146594A (en) * 1975-07-10 1979-03-27 Jean Raud Fuel flow control device
FR2312662A1 (en) * 1975-09-05 1976-12-24 Billat Georges Carburettor fuel regulator unit - has valve working against alternate seats to control flow when idling
FR2334831A1 (en) * 1975-10-14 1977-07-08 Albert Mazoin Slow running jet for automobile engine - has spring loaded needle valve to economise fuel during acceleration
US4075296A (en) * 1977-01-25 1978-02-21 Orsini Ronald J Idle speed needle screw for carburetors
FR2425554A1 (en) * 1978-05-10 1979-12-07 Beaucaron Jerome De Fuel regulator for carburettor slow running jet - has valve arranged as hydraulic damper using fuel as fluid
FR2450952A2 (en) * 1979-03-05 1980-10-03 Beaucaron Jerome De Regulating valve for carburettor jet - has spring loaded stem with needle valve operating in it

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200465776Y1 (en) * 2008-02-28 2013-03-18 주식회사 브이비엠 Building outer wall sticking style chute

Also Published As

Publication number Publication date
ES8200166A1 (en) 1981-11-01
BE884087A (en) 1980-10-16
ES493056A0 (en) 1981-11-01
NO811009L (en) 1981-03-25
IT1141806B (en) 1986-10-08
DK133581A (en) 1981-03-24
WO1981000281A1 (en) 1981-02-05
US4349489A (en) 1982-09-14
JPS56500938A (en) 1981-07-09
BR8008766A (en) 1981-05-26
IT8083398A0 (en) 1980-06-18

Similar Documents

Publication Publication Date Title
EP0032900A1 (en) Process and nozzle for providing a carburated mixture at idle running of an explosion engine
FR2471476A1 (en) TURBULENCE GENERATING DEVICE IN INTERNAL COMBUSTION ENGINE AND METHOD OF OPERATING THE SAME
FR2585080A1 (en) FUEL INJECTION METHOD AND DEVICE, INTERNAL COMBUSTION ENGINE WITH INJECTION, AND VEHICLE EQUIPPED WITH SUCH ENGINE
FR2508554A1 (en) DUPLEX CARBURETOR AND INTAKE MANIFOLD FOR INTERNAL COMBUSTION ENGINES
EP1808593A1 (en) Variable-section flow mixer for a double-flow jet engine of a supersonic airplane
FR2493919A1 (en) IMPROVED INTERNAL COMBUSTION ENGINE
FR2545158A1 (en) METHOD FOR CONTROLLING THE INJECTOR OUTPUT SECTION FOR DIRECT INJECTION INTERNAL COMBUSTION ENGINES AND INJECTOR FOR IMPLEMENTING THE METHOD
FR2682719A1 (en) Engine for hypersonic vehicle with turbojet and ramjet operations
FR2720113A1 (en) Carburetted mixture preparation system for 4=stroke IC engine
EP0551504B1 (en) Rotary throttle valve and utilisation of said throttle valve for the transfer of a fluid to a combustion chamber of an internal combustion angine
FR2726036A1 (en) DEVICE FOR CONVERTING INTERNAL COMBUSTION ENGINES, USING LIQUID FUELS, INTO PRESSURIZED GAS ENGINES
EP0189714B1 (en) Device for improving the quality of the carburetted mixture delivered by a pneumatic injection system
EP0296899B1 (en) Arrangement of a fuel feed system in a combustion chamber of a two-stroke engine in relation to the exhaust port
EP0338882B1 (en) Diesel engine with prechamber having a straight and inclined flame passage
FR2628478A1 (en) INTERNAL COMBUSTION ENGINE AND MIXTURE COMPRESSION COMPRISING A MAIN COMBUSTION CHAMBER AND AN AUXILIARY COMBUSTION CHAMBER
FR2484541A1 (en) Adjustable slow running jet - has mixture control system with auxiliary combustion air inlet in needle valve in mixing chamber
FR2907172A3 (en) Internal combustion engine, has intake valve head and valve seat between which fuel spray passes to directly penetrate into combustion chamber without reaching intake duct, intake valve and valve seat
FR2493402A2 (en) Charge feed for IC-engine - has premixing chamber with opposed air and fuel feeds to aid mixing
FR2474104A1 (en) PROCESS FOR PREPARING A COMBUSTIBLE MIXTURE FOR DIVIDED COMBUSTION VOLUME ENGINES, AND DEVICE FOR CARRYING OUT SAID METHOD
FR2712028A1 (en) Internal combustion engine with indirect fuel injection
FR2499159A1 (en) INTAKE DEVICE FOR AIR FUEL MIXTURE FOR INTERNAL COMBUSTION ENGINE
EP0264312B1 (en) Diesel engine comprising a prechamber with an inclined glow plug
FR2493404A1 (en) DEVICE FOR HOMOGENIZING THE ASPIRE MIXTURE BY AN INTERNAL COMBUSTION ENGINE
FR2886982A1 (en) Combustion chamber for diesel engine with direct injection has piston face cavity with notches in cavity rim aligned with injector orifices
JPH0159426B2 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19810309

AK Designated contracting states

Designated state(s): AT CH DE GB LU NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830108

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GAGET, ALAIN

Inventor name: JUILLOT, GUY