EP0134310A2 - 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

Info

Publication number: EP0134310A2
Authority: EP; European Patent Office
Prior art keywords: valve arrangement; stop; closing; arrangement according; lifting rod
Prior art date: 1983-08-11
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.): Granted

Application number

EP83112877A

Other languages

German (de)

English (en)

Other versions

EP0134310B1 (fr

EP0134310A3 (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.)

1983-08-11

Filing date

1983-12-21

Publication date

1985-03-20

1983-12-21 Application filed by Mannesmann VDO AG filed Critical Mannesmann VDO AG

1985-03-20 Publication of EP0134310A2 publication Critical patent/EP0134310A2/fr

1985-06-26 Publication of EP0134310A3 publication Critical patent/EP0134310A3/de

1986-09-03 Application granted granted Critical

1986-09-03 Publication of EP0134310B1 publication Critical patent/EP0134310B1/fr

Status 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 for regulating the idle speed of internal combustion engines by controlling the amount of air on the intake side of an intake line leading to the Uerbrennunos engine, with an electromechanical steep element which has a lifting magnet, through which a closing element can be moved against the force of a return spring via an actuating element .
Such valve arrangements serve to keep the engine's idle speed as low as possible, but at the same time to regulate it in such a way that with additional loads such as e.g. Auxiliary units do not reduce the number of engine idling speeds 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.
the object of the invention is therefore to provide a valve arrangement according to the preamble which, with a simple structure in the event of failure of the lifting magnet, ensures that the idling speed is as low as possible but always sufficiently high against the engine stopping.
the sliding member between a Rub position and a working position is movable relative to the actuator and is in the rest position in a defined partial opening position of the valve passage. If the power supply to the solenoid fails, the components of the valve arrangement automatically move from a working position to their rest position. Since in the rest position the closing element is in a defined partial opening position of the valve passage, which is as small as possible, but is sufficient to ensure that the engine runs smoothly even with additional loads from additional units, satisfactory idling operation is ensured.
control element is one with lifting rod connected to the movable core of the lifting magnet.
the relative movement of the closing member to the actuator can be achieved in that the closing member is slidably arranged on the lifting rod. Special guides for the closing element are therefore not necessary.
the return rod is preferably acted upon by the return spring in the closing direction.
the closing element In order to hold the closing element in a defined position on the lifting rod when the lifting magnet is in a current supply, the closing element can be held in the working position against a stop arranged on the lifting rod.
the stroke of movement of the lifting rod can be limited in the closing direction by a stop.
the closing element can be acted upon in the closing direction by a compression spring and can be in contact with a stop preventing a further closing movement in the partial opening division.
the stop for the closing member is preferably the one lever arm of a two-armed lever pivotable about a pivot axis, the second lever arm of which can be acted upon by the lifting rod. This has the advantage that when there is no current Solenoids, the closing movement of the closing element is only possible up to the partial opening position. If the current supply is intact, the closing member can move without hindrance until it rests on the valve seat of the valve arrangement.
the closing member can be held in the rest position against a stop arranged on the lifting rod and can thus be in the correct partial opening position.
the locking element In order to hold the locking element securely either in its working position or its rest position, the locking element can be connected to the stop by a snap spring and by the snap spring on one side of the snap point of the snap spring against the stop of the rest position and on the other side of the snap point against the Workstops can be acted on.
An automatic movement of the closing member from the working position in the rest position is achieved in a simple manner in that the closing member can be struck on the valve seat of the valve arrangement and the lifting rod can be moved so far in the closing direction that the snap-in point of the snap spring can be overcome and the closing member on the open stop of the rest position is movable.
the force of the return spring loading in the closing direction is greater than the force of the snap spring.
An automatic movement of the closing element from the rest position into the working position can be achieved in that the closing element can be moved out of the partial opening position against a spring force in the opening direction, which is greater than the contact force of the closing element at the stop position of the rest position. Should after from the rest position When the solenoid is energized to the working position, the solenoid pulls the lifting rod in the opening direction until the snap point is passed. Due to its high spring force, the closing element can only take part in the movement in the opening direction when it is in contact with the working position, since the actuating force of the lifting magnet is then greater than the spring loading of the closing element in the closing direction.
A is shown for an intake line, not shown, for an internal combustion engine or duct, in which a throttle valve 2 is rotatably arranged.
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 by-pass 3 can be blocked more or less by a valve arrangement in that a closing member 4 or 4 'can be moved towards a valve seat 5.
the closing member 4 or 4 ' is between a rest position and a working position axially displaceable on the one core 9 of a lifting magnet 7 carrying lifting rod 6 and loaded by a return spring 8 in the closing direction.
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.
the closing member 4 or 4 ' In the working position, which is assumed when the solenoid 7 is energized, the closing member 4 or 4 'is displaced towards the valve seat and is held in contact with a stop 10 of the lifting rod 6.
a lever arm 13 of a two-armed lever pivotable about a pivot axis 14 can be acted upon by the free end 12 of the lifting rod 6.
the other lever arm 15 of this lever is provided with a stop 16 against which the closing member 4 can come to rest.
the lever with His Hebetarmem13 and 75 and the stop 16 and the free end 12 of the lifting rod 6 are arranged in such a way that when the solenoid 7 is energized and the closing member 4 is in contact with the connection 10, the end 12 of the lifting rod 6 is not used Pad on lever arm 13 comes.
the closing member 4 can thus come close to resting on the valve seat 5.
the lifting rod 6 moves further in the closing direction, as is the case with the return spring 8 when the lifting magnet 7 is de-energized
the free end 12 of the lifting rod 6 acts on the lever arm 13 in such a way that it pivots in the closing direction.
the other lever arm 15 pivots in the opening direction and holds it via its stop 16 Closing member 4 in a partially open position from the valve seat 5. Since the force of the return spring 8 is greater than the force of the compression spring 11, this position is stably maintained when the lifting magnet 7 is de-energized.
a firmly supported compression spring 20 is stronger than the snap spring 19 in the closing direction on the closing member 4 1 .
the compression spring 20 is without tension.
the compression spring 20 and the return spring 8 first move together and then only the return spring 8 alone the closing member 4 'in the closing direction until the closing member 4' rests on the valve seat 5.
the return spring 8 causes the lifting rod 6 to move further until its end 12 comes to rest against the stop 17. Before this, however, the snap-over point of the snap spring 19 is passed over, so that it acts on the closing member 4 'against the stop 18.

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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)

EP83112877A 1983-08-11 1983-12-21 Agencement de soupape pour commander la vitesse de ralenti de moteurs à combustion interne Expired EP0134310B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19833328949 DE3328949A1 (de)	1983-08-11	1983-08-11	Ventilanordnung
DE3328949		1983-08-11

Publications (3)

Publication Number	Publication Date
EP0134310A2 true EP0134310A2 (fr)	1985-03-20
EP0134310A3 EP0134310A3 (en)	1985-06-26
EP0134310B1 EP0134310B1 (fr)	1986-09-03

Family

ID=6206271

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP83112877A Expired EP0134310B1 (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 (2)	US4662334A (fr)
EP (1)	EP0134310B1 (fr)
DE (2)	DE3328949A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4873954A (en) *	1988-07-27	1989-10-17	Colt Industries Inc.	Fail-safe idle bypass system
US5018495A (en) *	1988-08-17	1991-05-28	Colt Industries, Inc.	Automatic idle speed circuitry
US4873955A (en) *	1988-09-19	1989-10-17	Colt Industries Inc.	Idle air flow shutoff valve
DE3909396A1 (de) *	1989-03-22	1990-10-04	Bayerische Motoren Werke Ag	Vorrichtung zur bemessung der leerlaufluft von brennkraftmaschinen
US5121724A (en) *	1989-11-16	1992-06-16	Nissan Motor Company, Ltd.	Multi-cylinder internal combustion engine with individual port throttles upstream of intake valves
KR0158139B1 (ko) *	1993-12-07	1998-12-15	전성원	전기부하에 따른 아이들 동작 보정장치 및 그 방법
AU756938B1 (en)	2002-04-04	2003-01-30	Hyundai Motor Company	Engine idle speed control device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1601993C3 (de) *	1967-04-06	1974-02-28	Societe Industrielle De Brevets Et D'etudes S.I.B.E., Neuilly-Sur-Seine (Frankreich)	Vergaser für Brennkraftmaschinen
DE2949884C2 (de) *	1979-12-12	1985-05-30	Vdo Adolf Schindling Ag, 6000 Frankfurt	Ventilanordnung zur Regelung der Leelaufdrehzahl von Otto-Motoren
JPS56118529A (en) *	1980-02-22	1981-09-17	Nippon Denso Co Ltd	Rotational speed controlling method for engine
US4412517A (en) *	1980-10-06	1983-11-01	Toyota Jidosha Kogyo Kabushiki Kaisha	Idling speed control device of an internal combustion engine
IT1146472B (it) *	1981-07-10	1986-11-12	Weber Spa	Carburatore per motori a combustione interna con organi ad azionamento elettromagnetico atti a disporre la valvola a farfalla in due posizioni di piccola apertura
US4438049A (en) *	1982-09-07	1984-03-20	Ford Motor Company	Carburetor engine idle speed air bypass
DE3234468A1 (de) *	1982-09-17	1984-03-22	Robert Bosch Gmbh, 7000 Stuttgart	Verfahren und vorrichtung zur steuerung mindestens eines drosselquerschnittes in einer steuerleitung

1983
- 1983-08-11 DE DE19833328949 patent/DE3328949A1/de not_active Withdrawn
- 1983-12-21 EP EP83112877A patent/EP0134310B1/fr not_active Expired
- 1983-12-21 DE DE8383112877T patent/DE3365919D1/de not_active Expired
1984
- 1984-08-13 US US06/640,413 patent/US4662334A/en not_active Expired - Fee Related
1986
- 1986-09-02 US US06/903,009 patent/US4708110A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0134310B1 (fr)	1986-09-03
EP0134310A3 (en)	1985-06-26
US4662334A (en)	1987-05-05
DE3328949A1 (de)	1985-02-28
DE3365919D1 (en)	1986-10-09
US4708110A (en)	1987-11-24

Legal Events

Date	Code	Title	Description
1985-01-19	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
1985-03-20	AK	Designated contracting states	Designated state(s): DE FR GB IT SE
1985-04-24	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1985-06-26	AK	Designated contracting states	Designated state(s): DE FR GB IT SE
1985-09-25	17P	Request for examination filed	Effective date: 19850712
1986-03-05	17Q	First examination report despatched	Effective date: 19860116
1986-07-18	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1986-09-03	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT SE
1986-10-09	REF	Corresponds to:	Ref document number: 3365919 Country of ref document: DE Date of ref document: 19861009
1986-10-31	ET	Fr: translation filed
1986-11-25	ITF	It: translation for a ep patent filed
1987-07-07	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1987-07-07	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1987-08-26	26N	No opposition filed
1989-11-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19891130 Year of fee payment: 7
1989-12-14	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19891214 Year of fee payment: 7
1989-12-31	ITTA	It: last paid annual fee
1989-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19891231 Year of fee payment: 7
1990-12-21	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19901221
1990-12-22	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19901222
1991-08-21	GBPC	Gb: european patent ceased through non-payment of renewal fee
1991-08-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19910830
1991-10-25	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 83112877.2 Effective date: 19910910
1995-11-08	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19951108 Year of fee payment: 13
1997-09-02	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19970902

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