EP0133445B1 - Agencement de soupape - Google Patents

Agencement de soupape Download PDF

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Publication number
EP0133445B1
EP0133445B1 EP19840103882 EP84103882A EP0133445B1 EP 0133445 B1 EP0133445 B1 EP 0133445B1 EP 19840103882 EP19840103882 EP 19840103882 EP 84103882 A EP84103882 A EP 84103882A EP 0133445 B1 EP0133445 B1 EP 0133445B1
Authority
EP
European Patent Office
Prior art keywords
valve arrangement
valve
arrangement according
chamber
closure element
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.)
Expired
Application number
EP19840103882
Other languages
German (de)
English (en)
Other versions
EP0133445A2 (fr
EP0133445A3 (en
Inventor
Stephan Wietschorke
Gerhard Ruschek
Andreas Sausner
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.)
Mannesmann VDO AG
Original Assignee
Mannesmann VDO AG
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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Publication of EP0133445A2 publication Critical patent/EP0133445A2/fr
Publication of EP0133445A3 publication Critical patent/EP0133445A3/de
Application granted granted Critical
Publication of EP0133445B1 publication Critical patent/EP0133445B1/fr
Expired legal-status Critical Current

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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
    • F02M3/06—Increasing idling speed
    • F02M3/07—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed
    • F02M3/075—Increasing idling speed by positioning the throttle flap stop, or by changing the fuel flow cross-sectional area, by electrical, electromechanical or electropneumatic means, according to engine speed the valve altering the fuel conduit cross-section being a slidable valve
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87523—Rotary valve
    • Y10T137/87531—Butterfly valve
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87265—Dividing into parallel flow paths with recombining
    • Y10T137/87539—Having guide or restrictor

Definitions

  • the invention relates to a valve arrangement for regulating the idling speed of internal combustion engines by controlling the amount of air on the intake side of an intake line leading to the internal combustion engine, with an electromechanical actuator which has a lifting magnet, by means of which a closing element can be moved in the opening direction against the force of a return spring, against the force of a return spring , wherein the closing member is acted upon in the opening direction by the pressure of the inlet side and the inlet side is connected to a chamber which has a movable wall which is connected to the rear side of the closing member at least during its opening stroke.
  • Such valve arrangements serve to keep the idle speed of the engine as low as possible, but at the same time to regulate it so that with additional loads, such as. B. by auxiliary units, the idle speed does not decrease until the engine stalls.
  • a linear current is applied to the solenoid, which among other things. is formed as a function of the actual speed and which causes such an adjustment of the closing element that the actual speed reaches a predetermined target speed largely independently of disturbance variables.
  • the actuator When the solenoid is de-energized, the actuator, and with it the closing element, is moved by the return spring either to the fully open or to the fully closed position. This is the case if no current is applied to the solenoid outside of the driving mode. This can also occur due to a defect in which the power supply to the solenoid is interrupted.
  • a valve arrangement for regulating the idling speed of internal combustion engines which has an electromagnetic actuator arranged in a bypass that bypasses the throttle valve in the outlet connection with a pull magnet, by means of which a closing member can be moved in the closing direction against the force of a return spring is.
  • a valve arrangement for regulating the idle speed is known, which is arranged in a bypass bypassing a throttle valve in the intake manifold.
  • the closing element of the valve arrangement is a movable wall dividing a chamber, which can be acted upon on both sides by the pressure of the inlet side. Furthermore, the closing member is spring-loaded in the opening direction.
  • the side of the closing element which can be acted upon in the closing direction can be connected to the suction side via a normally open solenoid valve, so that the bypass is completely open in the event of failure of the solenoid valve, which leads to a maximum speed of the motor.
  • the object of the invention is therefore to provide a valve arrangement according to the preamble, which ensures the lowest possible idling speed with a simple structure in the event of failure of the lifting magnet, but always sufficiently high to prevent the engine from stopping.
  • the chamber is connected to the suction side via a valve which is open when the solenoid is de-energized and is closed during a control process when the solenoid is activated.
  • the valve is preferably a solenoid valve, it being particularly favorable if the solenoid valve can be energized by the actuating current of the lifting magnet. This automatically closes the solenoid valve when the solenoid is energized during a control process.
  • actuating element is a lifting rod connected to the movable core of the lifting magnet.
  • the movable wall can be formed by the closing member.
  • the movable wall is a membrane arranged between the closing member and the wall of the chamber.
  • a throttle valve 2 is rotatably arranged in an intake line 1 leading to an internal combustion engine (not shown).
  • the area in front of the throttle valve is via a by-pass 3. 2 connectable to the area behind the throttle valve 2.
  • the passage of the by-pass 3 can be more or less blocked by a valve arrangement in that a closing member 4 can be moved towards a valve seat 5.
  • the closing member 4 is axially displaceable between a rest position and a working position and is connected to the lifting rod 6 which carries a core 9 of a lifting magnet 7 and which is loaded in the closing direction by a return spring 8. When energized, the lifting rod 6 is moved more or less against the force of the return spring 8 in the opening direction.
  • a chamber 10 On the side of the closing member 4 facing away from the valve seat 5, a chamber 10 is arranged, the wall of which facing the valve seat 5 is a movable wall designed as a membrane 11. This membrane 11 is connected with its central region to the closing member 4, so that the pressure prevailing in the chamber 10 also acts on the closing member 4.
  • the active side of the closing element 4 on the inlet side and the active surface of the membrane 11 are approximately the same size.
  • the inlet side of the closing element 4 is connected to the chamber 10 via channels 12 formed in the closing element 4.
  • the mouths of the channels 12 on the inlet side are protected by a mushroom-like cover 13 against direct axial inflow of air into the channels 12. As a result, these openings of the channels 12 are only open in the radial direction.
  • the chamber 10 is connected via a connection 14 to the suction side of the suction line 1, which connection 14 can be shut off by a solenoid valve 15.
  • the solenoid valve 15, which is open when deenergized, is energized by the actuating current for energizing the solenoid 7 such that the solenoid valve 15 is closed when the solenoid 7 is energized.
  • the cross sections of the channels 12 are in such a size ratio to the cross section of the connection 14 that the force counteracting the inlet pressure causes the closing member 4 to open with a defined air flow rate.
  • the degree of opening changes according to the respective inlet pressure, but the air flow remains constant.
  • the solenoid 7 When idling, the solenoid 7 is acted upon by a control current generated by a controller, so that the core 9 and with it the lifting rod 6 and the closing member 4 are moved away from the valve seat 5 against the force of the return spring 8.
  • the solenoid valve 15 Since the solenoid valve 15 is also energized and closes when the solenoid 7 is energized, the magnetic force of the solenoid 7 is also counteracted by the pressure building up in the chamber 10. This pressure corresponds to the inlet-side pressure on the closing element 4, so that the closing element is formed by the equally large opposite active surfaces of the closing element 4 and the membrane 11. 4 can be moved independently of pressurization.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Claims (8)

1. Dispositif à soupape ou agencement de soupape destiné à régler la vitesse de ralenti de moteurs à combustion interne en réglant le débit de l'air du côté d'entrée d'une tubulure d'aspiration menant au moteur, dispositif comprenant un organe électromécanique de réglage qui comporte un électro-aimant (7) de levée grâce auquel un obturateur (4) peut être déplacé dans le sens de son ouverture par l'intermédiaire d'un élément de réglage, contre l'action d'un ressort (8) de rappel, cet obturateur étant sollicité à sa position d'ouverture par la pression du côté d'admission et ce côté d'admission communiquant avec une chambre (10) qui comporte une paroi mobile communiquant avec la face postérieure de l'obturateur (4), au moins pendant la course d'ouverture de ce dernier, dispositif caractérisé en ce que la chambre (10) communique avec le côté d'aspiration par l'intermédiaire d'une soupape qui est ouverte lorsque l'électro-aimant (7) de levée n'est pas excité et que l'excitation de cet électro-aimant (7) ferme pendant le réglage.
2. Dispositif selon la revendication 1, caractérisé en ce que la soupape est une soupape (15) électromagnétique.
3. Dispositif selon la revendication 2, caractérisé en ce que la soupape (15) électromagnétique peut être parcourue par le courant de réglage de l'électroaimant (7) de levée.
4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'élément de réglage est une tige (6) reliée au noyau (9) mobile de l'électroaimant (7) de levée.
5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la paroi mobile est formée par l'obturateur.
6. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la paroi mobile est une membrane (11) disposée entre l'obturateur et la paroi de la chambre (10).
7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la communication du côté d'admission avec la chambre (10) est établie par un canal (12) axial percé dans l'obturateur (4).
8. Dispositif selon la revendication 7, caractérisé en ce que l'orifice du canal (12) situé du côté de l'admission est orienté radialement.
EP19840103882 1983-08-11 1984-04-07 Agencement de soupape Expired EP0133445B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833328950 DE3328950A1 (de) 1983-08-11 1983-08-11 Ventilanordnung
DE3328950 1983-08-11

Publications (3)

Publication Number Publication Date
EP0133445A2 EP0133445A2 (fr) 1985-02-27
EP0133445A3 EP0133445A3 (en) 1985-09-18
EP0133445B1 true EP0133445B1 (fr) 1987-10-14

Family

ID=6206272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840103882 Expired EP0133445B1 (fr) 1983-08-11 1984-04-07 Agencement de soupape

Country Status (3)

Country Link
US (1) US4573441A (fr)
EP (1) EP0133445B1 (fr)
DE (2) DE3328950A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870006308A (ko) * 1985-12-10 1987-07-10 미타 가쓰시게 자동차용 아이들회전 제어장치
US4925155A (en) * 1988-07-14 1990-05-15 Crane Electronics, Inc. Control valve and method of controlling material flow through a conduit
US4873954A (en) * 1988-07-27 1989-10-17 Colt Industries Inc. Fail-safe idle bypass system
US4873955A (en) * 1988-09-19 1989-10-17 Colt Industries Inc. Idle air flow shutoff valve
JPH0713504B2 (ja) * 1988-09-26 1995-02-15 株式会社日立製作所 機関のアイドル回転数制御弁の弁特性改善方法
JPH0389959U (fr) * 1989-12-29 1991-09-12
US5042448A (en) * 1990-01-10 1991-08-27 Siemens Automotive Limited Idle air bypass
US7778088B2 (en) 2006-12-19 2010-08-17 Spansion Llc Erasing flash memory using adaptive drain and/or gate bias
US7967509B2 (en) 2007-06-15 2011-06-28 S.C. Johnson & Son, Inc. Pouch with a valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066930A (en) * 1979-12-12 1981-07-15 Vdo Schindling Apparatus for controlling the idling speed of an internal combustion engine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH591038A5 (fr) * 1975-06-27 1977-08-31 Lucifer Sa
DE2611409A1 (de) * 1976-03-18 1977-10-06 Bosch Gmbh Robert Verfahren zur beeinflussung der zusammensetzung des einer brennkraftmaschine zugefuehrten betriebsgemisches
US4245813A (en) * 1978-08-09 1981-01-20 General Industries, Inc. Flush valve
US4355606A (en) * 1978-10-02 1982-10-26 The Bendix Corporation Idle speed control valve
JPS5618173A (en) * 1979-07-20 1981-02-20 Paloma Ind Ltd Solenoid valve
JPS56124781A (en) * 1980-02-29 1981-09-30 Aisin Seiki Co Ltd Electric system flow-amount controlling valve apparatus
DE3028898A1 (de) * 1980-07-30 1982-03-04 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur regelung der leerlaufdrehzahl einer brennkraftmaschine
DE3113986A1 (de) * 1981-04-07 1982-10-21 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur regelung der leerlaufdrehzahl einer brennkraftmaschine
DE3129484C2 (de) * 1981-07-25 1983-10-13 Bosch und Pierburg System oHG, 4040 Neuss Vorrichtung zur Regelung der Drehzahl einer Brennkraftmaschine im Leerlauf

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066930A (en) * 1979-12-12 1981-07-15 Vdo Schindling Apparatus for controlling the idling speed of an internal combustion engine

Also Published As

Publication number Publication date
EP0133445A2 (fr) 1985-02-27
DE3466793D1 (en) 1987-11-19
EP0133445A3 (en) 1985-09-18
US4573441A (en) 1986-03-04
DE3328950A1 (de) 1985-02-28

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