EP0404664A1 - Einrichtung zur Steuerung eines Drosseldrehschiebers für die Zufuhreinstellung von Brennkraftmaschinen - Google Patents

Einrichtung zur Steuerung eines Drosseldrehschiebers für die Zufuhreinstellung von Brennkraftmaschinen Download PDF

Info

Publication number
EP0404664A1
EP0404664A1 EP90401726A EP90401726A EP0404664A1 EP 0404664 A1 EP0404664 A1 EP 0404664A1 EP 90401726 A EP90401726 A EP 90401726A EP 90401726 A EP90401726 A EP 90401726A EP 0404664 A1 EP0404664 A1 EP 0404664A1
Authority
EP
European Patent Office
Prior art keywords
control
spring
return spring
lever
throttle
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.)
Ceased
Application number
EP90401726A
Other languages
English (en)
French (fr)
Inventor
Pierre Semence
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.)
Solex SA
Original Assignee
Solex SA
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
Application filed by Solex SA filed Critical Solex SA
Publication of EP0404664A1 publication Critical patent/EP0404664A1/de
Ceased legal-status Critical Current

Links

Images

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
    • F02M19/00—Details, component parts, or accessories of carburettors, not provided for in, or of interest apart from, the apparatus of groups F02M1/00 - F02M17/00
    • F02M19/12—External control gear, e.g. having dash-pots
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0235—Throttle control functions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0262—Arrangements; Control features; Details thereof having two or more levers on the throttle shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0269—Throttle closing springs; Acting of throttle closing springs on the throttle shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
    • F02D2009/0201—Arrangements; Control features; Details thereof
    • F02D2009/0271—Arrangements; Control features; Details thereof with means for closing the throttle other than throttle closing springs

Definitions

  • the invention relates to supply installations for internal combustion engines and, more particularly, flow control devices intended to be incorporated in such installations and comprising a body in which is formed an intake duct which contains an organ rotary throttle around an axis, called a butterfly, intended to be controlled by the driver and movable between a minimum opening position, towards which it is biased by a return spring, and a corresponding maximum opening position at full engine load.
  • a body in which is formed an intake duct which contains an organ rotary throttle around an axis, called a butterfly, intended to be controlled by the driver and movable between a minimum opening position, towards which it is biased by a return spring, and a corresponding maximum opening position at full engine load.
  • Such devices are incorporated in the carburetors, to control the flow of air / fuel mixture, and in single-point or multi-point injection installations, where the device constitutes a "throttle body", to control the air flow in the drove.
  • Most known devices include an adjustable stop, often constituted by a screw whose position is adjustable on the body, intended to come into contact with a lever secured to the throttle member when the latter arrives in an open position. minimum where it leaves a sufficient air passage section to allow the engine to operate at idle.
  • Control devices have also been proposed comprising a bypass air channel around the location of the throttle member, through which all or most of the air necessary for the engine to idle passes. .
  • a bypass air channel around the location of the throttle member, through which all or most of the air necessary for the engine to idle passes.
  • the present invention aims to provide a control device of the kind defined above, in which the throttling member completely closes the intake duct in its minimum open position, presenting no risk of jamming.
  • the invention provides a device characterized in that the rotary throttle member is coupled to a control member subjected to the action of the return spring by means leaving the throttle member a predetermined range of travel in rotation relative to the control member and by elastic means exerting on the throttle member, in the closing direction, a torque less than at least an order of magnitude than that of the return spring and in that the displacement of said member control in the closing direction is limited by stop means.
  • stop means may have a conventional constitution and in particular be formed by a screw mounted in a threaded hole formed in the body of the device.
  • the means leaving the throttle a range of travel can be constituted by a finger trapped in an ovalized hole.
  • the elastic means can be constituted by a spring interposed between the throttling member and a lever subjected to the action of the return spring and directly driven by a linkage controlled by the driver.
  • the device shown in FIG. 1 comprises a body 10 constituted by a foundry piece, in which is formed an intake duct 12.
  • a ring 24 fitted into the wall of the foundry body receives a rotary pin 16, through which is mounted a rotary throttle member constituted by a butterfly 18.
  • a control linkage of the 'rotary throttle member 18 comprises a control member 20 in the form of a flat lever, mounted so as to be able to rotate, on the ring 24 to avoid causing stress on the axis 16, around an axis coaxial with that of the throttle member 18.
  • a washer 14 serves to support the ring on the foundry.
  • the lever 20 is provided with a ball joint 22 of articulation with a link rod with the accelerator pedal, in the case of mounting on a motor vehicle.
  • the lever 20 is trapped in a ring made of several parts 24, and mounted idly on the axis 16 of the throttle member 18.
  • a return spring 26 (or more springs to prevent the butterfly from remaining in the fully open state in the event of a spring break) is stretched between the control member 20 and an anchor point provided on the body. This spring 26 exerts a sufficient tension force to bring the throttle member 18 back to its closed position by overcoming the friction forces.
  • the control member 20 cooperates with adjustable stop means constituted, in the illustrated embodiment, by a screw 28 whose position is adjustable in, a tab 30 belonging to the body. This screw is placed on the path of a bent flange 32 belonging to the control member 20. A lock nut 34 can be provided on the screw to lock it in a suitable position.
  • the control member 20 is coupled to the axis 16 of the throttle member 18 by means leaving a range of predetermined relative angular displacement between them.
  • these means comprise a lever 36 locked on the axis 16 by a nut 38.
  • the amplitude of the angular movement between the lever 36 and the member 20 is fixed by the play of a finger 40 fixed to the lever 20 in an ovalized hole 42 formed in the lever 36. Often a relative angular movement of 1 to 3 degrees gives satisfactory results.
  • a bypass channel around the butterfly provided with flow adjustment means, can be provided in the body.
  • the elastic means which tend to bring the throttle member 18 into its closed position comprise a spring 44 compressed between the lever 36 and the control member 20.
  • This spring is held by lugs 46 and 48 provided respectively on extensions of the control member 20 and of the lever 36.
  • the spring 44 exerts on the lever 36 a torque which is at least an order of magnitude less than that exerted by the spring 26.
  • a spring 44 exerting a torque of approximately 700 g x cm often gives satisfactory results when it acts on a throttling member constituted by a butterfly of approximately 50 mm in diameter.
  • the throttle member 18 is advantageously dimensioned so that it closes the duct when it makes an appreciable angle ⁇ , advantageously 15 degrees or more, with a plane orthogonal to the axis .
  • the throttle member is thicker than those usually used, and its thickness is advantageously at least equal to 2 mm.
  • the device is advantageously adjusted, using the screw 28, so that the operation is as follows.
  • the control member 20 When the driver leaves the pedal accelerator, the control member 20 is brought by the spring 26 in contact with the stop 28. Until the member 20 arrives in the position indicated in phantom in Figure 1, the spring 44 of weak stiffness maintains the extensions of the lever 36 and the control member 20 in the maximum spacing position authorized by the play of the finger 40 in the ovalized hole 42. When the control member 20 arrives in this position indicated by dashed lines, the throttle member 18 comes into contact with the wall of the intake duct 12.
  • the spring 44 flexes and the holding torque of the throttling member 18 in support is equal to that exerted by the spring 44, on the sole condition that the clearance of the finger 40 in its ovalized hole is not completely traversed when the control member arrives in its ap position then against the stop means 28.
  • a stop 50 can be provided on the screw.
  • the clearance left with the finger 40 should not however be too great, so that the only consequence of the rupture or the insufficiency of the spring 44 is a slight opening of the butterfly 18 when the accelerator pedal is released.
  • the spring 44 can be mounted to work in extension. It can be replaced by a spring working in torsion or a tweezer spring whose central part is wound, for example a spring of the kind described in US Pat. No. 3,943,907

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
EP90401726A 1989-06-21 1990-06-19 Einrichtung zur Steuerung eines Drosseldrehschiebers für die Zufuhreinstellung von Brennkraftmaschinen Ceased EP0404664A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8908269 1989-06-21
FR8908269A FR2648868A1 (fr) 1989-06-21 1989-06-21 Dispositif de commande a organe d'etranglement rotatif pour installation d'alimentation de moteur a combustion interne

Publications (1)

Publication Number Publication Date
EP0404664A1 true EP0404664A1 (de) 1990-12-27

Family

ID=9382987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401726A Ceased EP0404664A1 (de) 1989-06-21 1990-06-19 Einrichtung zur Steuerung eines Drosseldrehschiebers für die Zufuhreinstellung von Brennkraftmaschinen

Country Status (3)

Country Link
EP (1) EP0404664A1 (de)
BR (1) BR9002932A (de)
FR (1) FR2648868A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122801C1 (en) * 1991-07-10 1992-11-26 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Throttle valve adjuster for IC-engine - has coupling concentric w.r.t. valve shaft via drier dog

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1934200A1 (de) * 1969-07-05 1971-01-21 Daimler Benz Ag Einstellvorrichtung fuer den Leerlaufanschlag der Drosselklappe einer Brennkraftmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS606025A (ja) * 1983-06-24 1985-01-12 Nippon Carbureter Co Ltd エンジン吸気量制御用絞り弁の戻し機構
JPS60204930A (ja) * 1984-03-28 1985-10-16 Nissan Koki Kk エンジンのアイドリング回転数制御装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1934200A1 (de) * 1969-07-05 1971-01-21 Daimler Benz Ag Einstellvorrichtung fuer den Leerlaufanschlag der Drosselklappe einer Brennkraftmaschine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 59 (M-459)(2116) 08 mars 1986, & JP-A-60 204930 (NITSUSAN KOUKI K.K.) 16 octobre 1985, *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 121 (M-382)(1844) 25 mai 1985, & JP-A-60 006025 (NIHON KIKAKI SEISAKUSHO) 12 janvier 1985, *

Also Published As

Publication number Publication date
FR2648868B1 (de) 1994-04-22
BR9002932A (pt) 1991-08-20
FR2648868A1 (fr) 1990-12-28

Similar Documents

Publication Publication Date Title
FR2899641A1 (fr) Regulateur de papillon des gaz pour une machine de compactage par vibration.
FR2602004A1 (fr) Dispositif de manoeuvre pour un volet-etrangleur ou papillon
FR2574958A1 (fr) Timonnerie mecanique admettant une commande prioritaire notamment pour la commande des gaz dans une automobile
EP0370908B1 (de) Einrichtung zur Steuerung einer Drosselklappe für die Zufuhreinstellung von inneren Brennkraftmaschinen
FR2698830A1 (fr) Détecteur de position, dont l'organe de transmission est formé d'un organe d'actionnement.
EP0410871B1 (de) Rotierendes Drosselorgan für die Kraftstoffversorgungsanlage einer Brennkraftmaschine
EP0404664A1 (de) Einrichtung zur Steuerung eines Drosseldrehschiebers für die Zufuhreinstellung von Brennkraftmaschinen
FR2640692A1 (fr) Carburateur a membrane comportant un papillon des gaz et un volet de depart couples de facon a etre interdependants dans leur position
EP0074905B1 (de) Aufladevorrichtung für eine Brennkraftmaschine
FR2496178A1 (fr) Dispositif d'admission pour moteur a combustion interne
EP0113268B1 (de) Kaltstartautomatik für Vergaser
EP0112190A1 (de) Vorrichtung zur Zuführung von gasförmigem Brennstoff zum Vergaser einer Brennkraftmaschine
FR2712924A1 (fr) Mécanisme d'actionnement de dispositif de moteur à combustion interne.
FR2616873A1 (fr) Dispositif d'ecoulement d'un fluide dans un conduit obturable par un volet ou papillon
JP4449037B2 (ja) スロットルオープナ
FR2640915A1 (en) Device for adjusting the travel of a down shift control for an accelerator control of a vehicle equipped with an automatic gearbox
JPH0531233Y2 (de)
FR2626623A1 (fr) Dispositif de commande pour l'admission de gaz pour un moteur a combustion interne
FR2630791A3 (fr) Securite antirotation de vis de reglage, de preference sur des unites d'injection de carburant de moteurs a combustion interne
EP0029769B1 (de) Vergaser mit Starterklappenvorrichtung
JPH02238138A (ja) 内燃機関の絞弁駆動装置
EP0088678A1 (de) Pneumatische Steuervorrichtung für die Vergaserluftklappe einer Brennkraftmaschine
BE375591A (de)
FR2647568A1 (fr) Dispositif de butee a passage de point dur et application du dispositif aux installations d'alimentation en combustible
FR2540184A1 (fr) Carburateur a plusieurs corps pour moteurs suralimentes par turbocompresseur

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES IT

17P Request for examination filed

Effective date: 19901224

17Q First examination report despatched

Effective date: 19910730

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19920418