EP1087109A2 - Actionneur de soupape de moteur à combustion interne - Google Patents

Actionneur de soupape de moteur à combustion interne Download PDF

Info

Publication number: EP1087109A2
Authority: EP; European Patent Office
Prior art keywords: valve; piston; main piston; intermediate piston; throttle bore
Prior art date: 1999-09-22
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

EP00120615A

Other languages

German (de)

English (en)

Other versions

EP1087109A3 (fr

EP1087109B1 (fr

Inventor

Diethard Plohberger

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.)

Innio Jenbacher GmbH and Co OG

Original Assignee

Jenbacher 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.)

1999-09-22

Filing date

2000-09-21

Publication date

2001-03-28

2000-09-21 Application filed by Jenbacher AG filed Critical Jenbacher AG

2000-09-21 Priority to AT00120615T priority Critical patent/ATE249574T1/de

2001-03-28 Publication of EP1087109A2 publication Critical patent/EP1087109A2/fr

2002-08-14 Publication of EP1087109A3 publication Critical patent/EP1087109A3/fr

2003-09-10 Application granted granted Critical

2003-09-10 Publication of EP1087109B1 publication Critical patent/EP1087109B1/fr

2020-09-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000002485 combustion reaction Methods 0.000 title claims description 3
239000012530 fluid Substances 0.000 claims description 11
230000006835 compression Effects 0.000 claims description 3
238000007906 compression Methods 0.000 claims description 3
239000003921 oil Substances 0.000 description 17
238000013016 damping Methods 0.000 description 11
239000006096 absorbing agent Substances 0.000 description 1
239000010727 cylinder oil Substances 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000000034 method Methods 0.000 description 1
230000035939 shock Effects 0.000 description 1

Images

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic

Definitions

the present invention relates to a valve drive for a valve Internal combustion engine, the valve being arranged in a cylinder space Main piston is connected to open the valve with in the cylinder chamber inflowing pressure fluid can be acted upon and wherein a closing spring is provided which acts on the valve in the closing direction.
the object of the invention is therefore to provide a valve drive that is simpler can be produced and is essentially independent of the state of wear of the valve.
a throttle is provided via which throttled out part of the pressure fluid during the closing movement of the valve flows out of the cylinder space.
the throttle reduces the speed of the valve approaching the valve seat in such a way that it gently "
a compression spring is arranged to the cylinder space between the main piston and the intermediate piston in each Cycle with a sufficient amount of pressurized fluid for damping preferably provided that between the main piston and the intermediate piston . Because of the spring against the main and the Presses intermediate piston, pressure fluid is released into the spring when the spring is released Vacuumed in between.
the intermediate piston faces the pressure oil line Side has a preferably cone-shaped stop.
attack forms on the side of the intermediate piston facing the pressure oil line Cavity that ensures that the pressure oil regardless of the location of the Throttle bore can flow in and out freely via the pressure oil line.
the size of the throttle bore has a major influence on the damping. Proven if the diameter of the throttle bore is less than 10%, is preferably about 5 to 7% of the diameter of the intermediate piston.
FIGS. 1 to 3 the one according to the invention Show valve drive in different positions during a cycle.
the valve train consists of a poppet valve V in a known manner Closing spring S and a hydraulic main piston HK. This causes Supply of the cylinder chamber Z with pressure oil through the cross section D an opening of the Valve. When the oil pressure is cut off, valve V closes and the oil is excluded displaced the cylinder space Z.
the advantage of the arrangement according to the invention is that the damping path ⁇ s regardless of the distance s between the main piston HK and the intermediate piston ZK is.
the distance s changes over time with increasing valve wear.
the damping path ⁇ s is only a function of time, the diameter d Throttle bore B, the spring force of the spring F and the oil viscosity.
the throttle bore B can be made very precisely.
the leakage between the main piston HK and the intermediate piston ZK on the one hand and the Cylinder housing G, on the other hand, can be completely avoided by conventional seals are, so that there are no tolerance-related deviations of the Give damping path between a number of valve drives of an engine can.
the system is still self-regulating in that it is cold oil and / or large Oil viscosity of the distance increase ⁇ s turns out to be lower than with warm oil and / or small oil viscosity.
the closing speed of the Valve V due to the higher wall friction of the oil in the lines and the Flow resistance through the throttle B larger, so that a smaller overall Damping path ⁇ s is sufficient or is desirable.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Valve Device For Special Equipments (AREA)
Valve-Gear Or Valve Arrangements (AREA)
Fuel-Injection Apparatus (AREA)

EP00120615A 1999-09-22 2000-09-21 Actionneur de soupape de moteur à combustion interne Expired - Lifetime EP1087109B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT00120615T ATE249574T1 (de)	1999-09-22	2000-09-21	Ventilantrieb für ein ventil eines verbrennungsmotors

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
AT161799		1999-09-22
AT0161799A AT410696B (de)	1999-09-22	1999-09-22	Ventilantrieb für ein ventil eines verbrennungsmotors

Publications (3)

Publication Number	Publication Date
EP1087109A2 true EP1087109A2 (fr)	2001-03-28
EP1087109A3 EP1087109A3 (fr)	2002-08-14
EP1087109B1 EP1087109B1 (fr)	2003-09-10

Family

ID=3517296

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00120615A Expired - Lifetime EP1087109B1 (fr)	1999-09-22	2000-09-21	Actionneur de soupape de moteur à combustion interne

Country Status (5)

Country	Link
US (1)	US6382147B1 (fr)
EP (1)	EP1087109B1 (fr)
AT (2)	AT410696B (fr)
DE (1)	DE50003618D1 (fr)
ES (1)	ES2203385T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1270881A1 (fr) *	2001-06-12	2003-01-02	Visteon Global Technologies, Inc.	Actionneur à levée variable
WO2003027449A1 (fr) *	2001-09-26	2003-04-03	Robert Bosch Gmbh	Dispositif de commande d'une section d'ouverture dans un cylindre de combustion d'un moteur a combustion interne
DE102006012067A1 (de) *	2006-03-16	2007-09-20	Volkswagen Ag	Hydraulische Ventilbetätigungsvorrichtung für ein Gaswechselventil
DE102004018359B4 (de) *	2003-04-12	2013-12-24	Mahle Ventiltrieb Gmbh	Hydraulischer Stellantrieb von insbesondere Gaswechselventilen eines Verbrennungsmotors
ITBO20130057A1 (it) *	2013-02-13	2014-08-14	Gnutti Spa Trafilierie	Punteria con sistema compensatore idraulico del gioco utilizzabile in un cinematismo, in particolare nella catena cinematica di collegamento tra un albero a camme e una valvola in un motore endotermico.
DE102017113783A1 (de)	2017-06-21	2018-12-27	Man Truck & Bus Ag	Kraftübertragungsvorrichtung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2004084670A (ja) *	2002-08-28	2004-03-18	Man B & W Diesel As	水圧で作動されるバルブ
FR2878559B1 (fr) *	2004-11-30	2009-07-03	Renault Sas	Dispositif d'actionnement des soupapes d'un moteur thermique sans arbre a cames et piston de soupape en deux parties
SE531535C2 (sv) *	2006-02-14	2009-05-12	Cargine Engineering Ab	Metod för bromsning av en aktuatorkolv, samt en pneumatisk aktuator
DE102008054014A1 (de) *	2008-10-30	2010-05-06	Man Nutzfahrzeuge Aktiengesellschaft	Gaswechselventil für Brennkraftmaschinen
US8578897B2 (en)	2011-04-12	2013-11-12	Ford Global Technologies, Llc	Valve system
KR101251522B1 (ko) *	2011-05-04	2013-04-05	현대자동차주식회사	유압 밸브 장치

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* Cited by examiner, † Cited by third party
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CH243908A (de) *	1944-11-27	1946-08-15	Schweizerische Lokomotiv	Flüssigkeitsbremse mit Rückschlagventil am Passivkolben von hydraulisch gesteuerten Ventilen von Brennkraftmaschinen.
JPS60252111A (ja) *	1984-05-28	1985-12-12	Yanmar Diesel Engine Co Ltd	内燃機関用油圧動弁装置のダンピング機構
ES2012474B3 (es) *	1986-07-29	1990-04-01	Bayerische Motoren Werke Ag	Instalacion de mando hidraulico de valvulas de elevacion
US4796573A (en) *	1987-10-02	1989-01-10	Allied-Signal Inc.	Hydraulic engine valve lifter assembly
US5275136A (en) *	1991-06-24	1994-01-04	Ford Motor Company	Variable engine valve control system with hydraulic damper
US5577468A (en) *	1991-11-29	1996-11-26	Caterpillar Inc.	Engine valve seating velocity hydraulic snubber
US5216988A (en) *	1992-10-15	1993-06-08	Siemens Automotive L.P.	Dual bucket hydraulic actuator
JP2870682B2 (ja) *	1993-11-02	1999-03-17	日鍛バルブ株式会社	ダンパ付油圧式吸排気弁駆動装置
DE4443169A1 (de) *	1994-12-05	1996-06-13	Dens Juergen Dipl Ing Dipl Wir	Ventil mit variabler, elektronischer Steuerung für Wärmekraftmaschinen
US5503120A (en) *	1995-01-18	1996-04-02	Siemens Automotive Corporation	Engine valve timing control system and method
DE19749302A1 (de) *	1997-11-07	1999-05-12	Bayerische Motoren Werke Ag	Hydraulische Betätigungsvorrichtung für ein Gaswechselventil einer Brennkraftmaschine
BR9815101A (pt) *	1997-11-21	2001-04-03	Diesel Engine Retarders Inc	Sistema de atuação de válvula para atuar as válvulas de motor em um motor de combustão interna

1999
- 1999-09-22 AT AT0161799A patent/AT410696B/de not_active IP Right Cessation
2000
- 2000-09-21 DE DE50003618T patent/DE50003618D1/de not_active Expired - Fee Related
- 2000-09-21 EP EP00120615A patent/EP1087109B1/fr not_active Expired - Lifetime
- 2000-09-21 AT AT00120615T patent/ATE249574T1/de not_active IP Right Cessation
- 2000-09-21 ES ES00120615T patent/ES2203385T3/es not_active Expired - Lifetime
- 2000-09-21 US US09/666,821 patent/US6382147B1/en not_active Expired - Fee Related

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1270881A1 (fr) *	2001-06-12	2003-01-02	Visteon Global Technologies, Inc.	Actionneur à levée variable
US6584885B2 (en)	2001-06-12	2003-07-01	Visteon Global Technologies, Inc.	Variable lift actuator
WO2003027449A1 (fr) *	2001-09-26	2003-04-03	Robert Bosch Gmbh	Dispositif de commande d'une section d'ouverture dans un cylindre de combustion d'un moteur a combustion interne
DE102004018359B4 (de) *	2003-04-12	2013-12-24	Mahle Ventiltrieb Gmbh	Hydraulischer Stellantrieb von insbesondere Gaswechselventilen eines Verbrennungsmotors
DE102006012067A1 (de) *	2006-03-16	2007-09-20	Volkswagen Ag	Hydraulische Ventilbetätigungsvorrichtung für ein Gaswechselventil
DE102006012067B4 (de) *	2006-03-16	2016-03-24	Volkswagen Ag	Hydraulische Ventilbetätigungsvorrichtung für ein Gaswechselventil
ITBO20130057A1 (it) *	2013-02-13	2014-08-14	Gnutti Spa Trafilierie	Punteria con sistema compensatore idraulico del gioco utilizzabile in un cinematismo, in particolare nella catena cinematica di collegamento tra un albero a camme e una valvola in un motore endotermico.
DE102017113783A1 (de)	2017-06-21	2018-12-27	Man Truck & Bus Ag	Kraftübertragungsvorrichtung
US10718237B2 (en)	2017-06-21	2020-07-21	Man Truck & Bus Ag	Force transmission device

Also Published As

Publication number	Publication date
EP1087109A3 (fr)	2002-08-14
AT410696B (de)	2003-06-25
EP1087109B1 (fr)	2003-09-10
US6382147B1 (en)	2002-05-07
DE50003618D1 (de)	2003-10-16
ATA161799A (de)	2002-11-15
ES2203385T3 (es)	2004-04-16
ATE249574T1 (de)	2003-09-15

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