EP0153962B1 - Agencement de soupape pour commander la vitesse de ralenti de moteurs à combustion interne - Google Patents

Agencement de soupape pour commander la vitesse de ralenti de moteurs à combustion interne Download PDF

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Publication number
EP0153962B1
EP0153962B1 EP83112875A EP83112875A EP0153962B1 EP 0153962 B1 EP0153962 B1 EP 0153962B1 EP 83112875 A EP83112875 A EP 83112875A EP 83112875 A EP83112875 A EP 83112875A EP 0153962 B1 EP0153962 B1 EP 0153962B1
Authority
EP
European Patent Office
Prior art keywords
valve
closing member
closing
lifting rod
valve arrangement
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
EP83112875A
Other languages
German (de)
English (en)
Other versions
EP0153962A1 (fr
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 EP0153962A1 publication Critical patent/EP0153962A1/fr
Application granted granted Critical
Publication of EP0153962B1 publication Critical patent/EP0153962B1/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

Definitions

  • the invention relates to a valve arrangement in a bypass line bridging a throttle valve of an intake line for regulating the idling speed of internal combustion engines by controlling the amount of air on the intake side of the intake line leading to the internal combustion engine, with an electromechanical actuator having a solenoid through which a closing member counteracts a lifting rod the force of a return spring can be moved in the opening direction, with a connection of a certain cross-section from the inlet side to the outlet side of the closing element being arranged in a valve which is closed in the opening position of the closing element and can be opened in the closing position of the closing element.
  • Such valve arrangements are used 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 dies.
  • 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.
  • valve arrangement of the type described above is known. In the area of a small opening of the closing member, the valve is also partially open at the same time, so that no fine regulation of the idling speed can take place. Furthermore, from "Patent Abstracts of Japan", Volume 6, No. 220 (M-169) (1098), November 5, 1982; JP-A-57 126 535 a valve arrangement is known in which a first and a second are arranged one inside the other In the uncontrolled position, the passages of both valves are completely open at the same time.
  • FR-A-21 10 603 and FR-A-229 217 show a poppet valve which can be opened by an electromagnetically actuated lifting rod and the closing part of which is attached to the free end of the lifting rod, the lifting rod projecting through a connection formed in the closing member, at the inlet-side mouth of the seat of the poppet valve is formed.
  • the closing part of the valve is fastened to the free end of the lifting rod on the inlet side, and if the lifting rod projects through the connection formed axially in the closing element, at whose inlet-side mouth the seat of the valve is formed, then there is a high degree of integration and double functions of the components of the normal control and the components of the valve.
  • the closing part is held in its seat, from which it is automatically lifted when the normal control is closed.
  • the valve is preferably a poppet valve and in this way can simultaneously form a stop on the lifting rod, against which the closing member is in contact during normal operation.
  • the return spring can have a greater spring force than the spring acting on the closing element.
  • the latter can be arranged displaceably between two stops on the lifting rod.
  • An embodiment of the invention is shown in the single figure of the drawing and shows a valve arrangement according to the invention in cross section.
  • 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 2 can be connected to the area behind the throttle valve 2 via a bypass 3.
  • the passage of the bypass 3 can be blocked more or less by a valve arrangement in that its closing member 4 can be moved towards a valve seat 5. When the closing member 4 is seated, no air can flow via the bypass 3 from the atmosphere side to the suction side of the suction line 1.
  • the closing member 4 is arranged axially displaceably on the lifting rod carrying a core 9 of a lifting magnet 7 and is loaded in the closing direction by a return spring 8.
  • the solenoid 7 When the solenoid 7 is energized, the lifting rod 6 is moved more or less against the force of the return spring 8 in the opening direction.
  • connection 10 which leads from the inlet side to the suction side of the closing element 4.
  • This connection 10 has a cross-section which enables such an air throughput that, while the internal combustion engine is idling, dying is certainly avoided, but at the same time the engine is running at the lowest possible speed.
  • connection 10 can be shut off by a valve 11 when operating with an intact control.
  • the seat 12 of the valve 11 designed as a poppet valve is formed at the mouth of the connection 10 to the inlet side and can be closed by a closing part 13 fastened to the free end of the lifting rod 6 projecting through the connection 10.
  • the closing part 13 comes to rest on its seat 12 and at the same time forms a stop, via which the closing part 4 is lifted from its valve seat 5 by the lifting rod 6 moving in the opening direction.
  • the spring 14 holds the closing member 4 firmly in contact with the closing part 13.
  • the return spring 8 moves the lifting rod 6 and thus also the closing member 4 in the closing direction. After the closing member 4 has been placed on its valve seat 5, as shown in the figure, the return spring 8 moves the lifting rod even further in the closing direction than the stop 15 allows. This movement is possible because the return spring 8 can compress the spring 14 with its greater force.

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  • 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 (6)

1. Mécanisme à soupapes monté dans un passage de dérivation court-circuitant le papillon (2) d'une tubulure (1) d'admission et destiné à régler la vitesse de ralenti de moteurs à combustion interne en réglant le débit d'air du côté d'aspiration de cette tubulure (1) qui va au moteur, ce mécanisme comprenant un organe électromécanique de réglage qui comporte un électro-aimant (7), grâce auquel un obturateur (4) peut être déplacé dans le sens de son ouverture par l'intermédiaire d'une tige (6) de levée, contre la force d'un ressort (8) de rappel, une soupape (11), qui est fermée quand cet obturateur (4) occupe sa position d'ouverture et qui s'ouvre quand l'obturateur se ferme, étant disposée dans un canal (10) de liaison de section déterminée, faisant communiquer l'amont de cet obturateur (4) avec son aval, mécanisme caractérisé en ce que le canal (10) de liaison et la soupape (11) sont disposés dans l'obturateur (4), et cette soupape (11) est destinée à être ouverte par la tige (6), contre la force d'un ressort (14) s'appuyant contre cet obturateur (4), celui-ci, qui, en position de fermeture, est appliqué contre le siège (5) d'une soupape du mécanisme et est sollicité à sa position de fermeture par le ressort (14), étant monté coulissant sur la tige (6) et étant ouvert quand l'électro-aimant (7) est excité, par l'intermédiaire de l'élément obturateur (13) de la soupape (11), lequel est alors appliqué contre son siège (12) formé dans ledit obturateur (4).
2. Mécanisme à soupapes selon la revendication 1, caractérisé en ce que la tige (6) de levée est reliée au noyau (9) mobile de l'électro-aimant (7).
3. Mécanisme à soupapes selon l'une des revendications précédentes, caractérisé en ce que l'élément obturateur (13) de la soupape (11) est fixé à l'extrémité amont libre de la tige (6) de levée, celle-ci traversant le canal (10) de liaison qui est formé axialement dans l'obturateur (4) et à l'embouchure amont duquel le siège (12) de cette soupape (11) est formé.
4. Mécanisme à soupapes selon la revendication 3, caractérisé en ce que la soupape (11) est une soupape à disque.
5. Mécanisme à soupapes selon la revendication 1, caractérisé en ce que le ressort (8) de rappel a une force plus grande que le ressort (14) agissant sur l'obturateur (4).
6. Mécanisme à soupapes selon la revendication 1, caractérisé en ce que l'obturateur (4) est monté coulissant entre deux butées sur la tige (6) de levée.
EP83112875A 1983-08-11 1983-12-21 Agencement de soupape pour commander la vitesse de ralenti de moteurs à combustion interne Expired EP0153962B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833328960 DE3328960A1 (de) 1983-08-11 1983-08-11 Ventilanordnung
DE3328960 1983-08-11

Publications (2)

Publication Number Publication Date
EP0153962A1 EP0153962A1 (fr) 1985-09-11
EP0153962B1 true EP0153962B1 (fr) 1988-07-13

Family

ID=6206279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112875A Expired EP0153962B1 (fr) 1983-08-11 1983-12-21 Agencement de soupape pour commander la vitesse de ralenti de moteurs à combustion interne

Country Status (3)

Country Link
US (1) US4541379A (fr)
EP (1) EP0153962B1 (fr)
DE (2) DE3328960A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4617889A (en) * 1984-04-11 1986-10-21 Hitachi, Ltd. Idle speed control device
JPS6111436A (ja) * 1984-06-26 1986-01-18 Toyota Motor Corp 内燃機関のアイドル回転速度制御装置
DE3801084A1 (de) * 1987-05-19 1988-12-08 Bosch Gmbh Robert Vorrichtung zur steuerung mindestens eines drosselquerschnittes an mindestens einer steueroeffnung
DE3716661A1 (de) * 1987-05-19 1988-12-08 Bosch Gmbh Robert Vorrichtung zur steuerung mindestens eines drosselquerschnittes an mindestens einer steueroeffnung
JPH0389959U (fr) * 1989-12-29 1991-09-12
DE4231239A1 (de) * 1992-09-18 1994-03-24 Bosch Gmbh Robert Vorrichtung zur Regelung der Leerlaufdrehzahl einer Brennkraftmaschine
DE4231241A1 (de) * 1992-09-18 1994-03-24 Bosch Gmbh Robert Vorrichtung zur Regelung der Leerlaufdrehzahl einer Brennkraftmaschine
DE102019105707B3 (de) * 2019-01-09 2020-06-04 Kendrion (Villingen) Gmbh Druckregelventil und Vorrichtung mit einem derartigen Druckregelventil zum Steuern oder Regeln eines Drucks eines Druckfluids in einem Pilotdruckraum

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2110603A5 (fr) * 1970-10-23 1972-06-02 Leblanc Sa
FR2292172A1 (fr) * 1974-11-25 1976-06-18 Oswald Herve Electrovanne et fermeture sous tension
JPS5644433A (en) * 1979-09-20 1981-04-23 Toyota Motor Corp Method of adjusting idling revolution speed
DE2949884C2 (de) * 1979-12-12 1985-05-30 Vdo Adolf Schindling Ag, 6000 Frankfurt Ventilanordnung zur Regelung der Leelaufdrehzahl von Otto-Motoren
DE3028898A1 (de) * 1980-07-30 1982-03-04 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur regelung der leerlaufdrehzahl einer brennkraftmaschine

Also Published As

Publication number Publication date
DE3377377D1 (en) 1988-08-18
DE3328960A1 (de) 1985-02-21
US4541379A (en) 1985-09-17
EP0153962A1 (fr) 1985-09-11

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