EP0526736A1 - Guide de soupape pour moteur à combustion interne - Google Patents

Guide de soupape pour moteur à combustion interne Download PDF

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Publication number
EP0526736A1
EP0526736A1 EP92111111A EP92111111A EP0526736A1 EP 0526736 A1 EP0526736 A1 EP 0526736A1 EP 92111111 A EP92111111 A EP 92111111A EP 92111111 A EP92111111 A EP 92111111A EP 0526736 A1 EP0526736 A1 EP 0526736A1
Authority
EP
European Patent Office
Prior art keywords
guide
valve
internal combustion
valve stem
valve guide
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.)
Granted
Application number
EP92111111A
Other languages
German (de)
English (en)
Other versions
EP0526736B1 (fr
Inventor
Jürgen Dr. Dipl.-Phys. Engelhard
Johann Dipl.-Ing. Müller
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.)
Rolls Royce Solutions Augsburg GmbH
Original Assignee
MAN Technologie 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 MAN Technologie AG filed Critical MAN Technologie AG
Publication of EP0526736A1 publication Critical patent/EP0526736A1/fr
Application granted granted Critical
Publication of EP0526736B1 publication Critical patent/EP0526736B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant

Definitions

  • the invention relates to a method and a device for lubricating the valve stem guide of internal combustion engines.
  • valve stem guide With the intake and exhaust valves in the cylinder head of an internal combustion engine, the primary function of the valve stem guide is to guide the valve so that when it closes, it sits on the valve seat without radial movement.
  • the valve stem guide means that lateral forces have to be absorbed by the rocker arm movement and the exhaust gas flow.
  • valve stem guide which is transferred to the valve during combustion by the hot exhaust gases.
  • the high temperatures that occur make it difficult to lubricate the valve stem guide.
  • this takes place from the rocker arm side by means of spray oil which is transported into the guide by the stroke movement of the valve. Since excess lubricating oil gets into the fuel inlet or exhaust gas duct on the underside of the guide, the lubricating oil supply must be dosed as precisely as possible with regard to oil consumption and emissions. This dosing is done empirically through the detailed design of the gap between the valve stem and guide.
  • the invention is therefore based on the object of providing a method of the type mentioned at the outset with which the lubrication of the valve stem guide is optimized with justifiable expenditure and without negative effects on oil consumption and emission values.
  • the measure according to the invention improves the lubrication of the valve stem guide without more lubricating oil in the exhaust gas or.
  • Inlet channel arrives.
  • the area of the valve guide below the relief groove serves to seal the valve guide against the high exhaust gas pressure or against the inlet duct.
  • the upper region of the valve guide on the crankcase side is relieved of pressure, so that there is only a small differential pressure here, which does not impede lubrication.
  • the lubricating oil is pressed in via a second annular groove designed as a lubricating groove.
  • the lubrication groove can preferably be connected via a bore to the pressure side of the lubricating oil system of the engine. This ensures optimal lubrication in the long term, regardless of the operating state of the engine.
  • the relief groove is connected to the crankcase via a longitudinal groove. This allows both exhaust gas entering and lubricating oil entering the relief groove to be discharged into the crankcase. As a result, the supply of lubricating oil does not have to be limited out of consideration for oil consumption and emissions.
  • the invention extends to a valve guide for carrying out the method, which is characterized by the features of claims 3 to 5.
  • the measures according to the invention are suitable for exhaust valves of internal combustion engines of all types, in particular for exhaust valves of supercharged gas engines.
  • the measures are also suitable for intake valves if there is excess pressure in the intake duct.
  • a first groove designed as a relief groove 11 is provided in the valve guide 1, which divides the valve guide 1 into a lower area 1 on the valve seat side and an upper area 1 on the crank chamber side.
  • the lower area 1 a in the guide 1 serves to seal the oil-lubricated upper guide part 1 against the ingress of exhaust gas from the exhaust gas duct 4. Any exhaust gas that enters through a very small gap between the guide 1 and the valve stem then enters the relief groove 11, which has a Longitudinal groove 13 is connected to the crank chamber 5 so that the penetrating exhaust gas can get into the crank chamber 5.
  • the upper region 1 of the valve guide is therefore unaffected by the exhaust gas and its pressure. This allows a safe introduction of lubricating oil into the guide area between the valve stem and the guide.
  • the lubricating oil can reach the guide gap in the upper valve guide area 1 in a conventional manner via the crank chamber 5. Improved lubrication is achieved, however, with forced lubrication, which passes through oil holes 15 into a second annular groove designed as a lubricating groove 14 under pressure.
  • the lubricating oil pushed up and down by the movement of the valve 2 will reach the crank chamber 5 directly at the upper end and at the lower end of the upper region 1 via the relief groove 11 and the longitudinal channel 13. This not only ensures good lubrication, but also prevents lubricating oil from getting into the exhaust duct 4 or, in the case of an intake valve, into the intake duct.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP92111111A 1991-07-05 1992-07-01 Guide de soupape pour moteur à combustion interne Expired - Lifetime EP0526736B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4122330 1991-07-05
DE4122330A DE4122330A1 (de) 1991-07-05 1991-07-05 Ventilschaftfuehrung von verbrennungsmotoren

Publications (2)

Publication Number Publication Date
EP0526736A1 true EP0526736A1 (fr) 1993-02-10
EP0526736B1 EP0526736B1 (fr) 1995-09-13

Family

ID=6435539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111111A Expired - Lifetime EP0526736B1 (fr) 1991-07-05 1992-07-01 Guide de soupape pour moteur à combustion interne

Country Status (5)

Country Link
EP (1) EP0526736B1 (fr)
AT (1) ATE127879T1 (fr)
DE (2) DE4122330A1 (fr)
DK (1) DK0526736T3 (fr)
ES (1) ES2078597T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1070832A3 (fr) * 1999-07-23 2001-09-26 Man Nutzfahrzeuge Ag Guide de soupape avec lubrification forcée
EP3144492A1 (fr) * 2015-09-18 2017-03-22 PGES Günther Herdin technisches Büro GmbH Guide de soupape
WO2017207055A1 (fr) * 2016-06-02 2017-12-07 Volvo Truck Corporation Agencement de soupapes et guide de soupape

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712059A1 (de) * 1997-03-24 1998-10-01 Brauneweil Markus Ventil für einen Verbrennungsmotor E 5
DE19742111A1 (de) * 1997-09-24 1999-03-25 Motoren Werke Mannheim Ag Ventilschaftschmierung für eine Hubkolben-Brennkraftmaschine
DE102012111466A1 (de) * 2012-11-27 2014-05-28 Agrogen Gmbh Ventilanordnung einer Brennkraftmaschine mit einer Kühleinrichtung
DE102015116009C5 (de) * 2015-09-22 2020-07-30 Federal-Mogul Valvetrain Gmbh Ventil für Verbrennungsmotoren mit Leitschaufel für Kühlmittel
CN106870050A (zh) * 2017-03-30 2017-06-20 广西玉柴机器股份有限公司 气门导管

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179311A5 (fr) * 1972-04-06 1973-11-16 France Etat
FR2278921A2 (fr) * 1974-07-18 1976-02-13 France Etat Perfectionnements apportes aux moteurs a combustion interne suralimentes
FR2302461A1 (fr) * 1975-02-27 1976-09-24 Semt Dispositif de lubrification d'un systeme de guidage de soupape pour un moteur a combustion intern

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65499A (fr) *
US2354926A (en) * 1941-11-17 1944-08-01 Raymond A Patterson Valve lubrication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2179311A5 (fr) * 1972-04-06 1973-11-16 France Etat
FR2278921A2 (fr) * 1974-07-18 1976-02-13 France Etat Perfectionnements apportes aux moteurs a combustion interne suralimentes
FR2302461A1 (fr) * 1975-02-27 1976-09-24 Semt Dispositif de lubrification d'un systeme de guidage de soupape pour un moteur a combustion intern

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1070832A3 (fr) * 1999-07-23 2001-09-26 Man Nutzfahrzeuge Ag Guide de soupape avec lubrification forcée
EP3144492A1 (fr) * 2015-09-18 2017-03-22 PGES Günther Herdin technisches Büro GmbH Guide de soupape
WO2017207055A1 (fr) * 2016-06-02 2017-12-07 Volvo Truck Corporation Agencement de soupapes et guide de soupape
US11143146B2 (en) 2016-06-02 2021-10-12 Volvo Truck Corporation Valve arrangement and valve guide

Also Published As

Publication number Publication date
DE4122330A1 (de) 1993-01-07
EP0526736B1 (fr) 1995-09-13
ATE127879T1 (de) 1995-09-15
DE59203654D1 (de) 1995-10-19
ES2078597T3 (es) 1995-12-16
DK0526736T3 (da) 1995-11-13

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