EP0224666A1 - Poussoir de soupape à autoréglage hydraulique - Google Patents

Poussoir de soupape à autoréglage hydraulique Download PDF

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Publication number
EP0224666A1
EP0224666A1 EP86112735A EP86112735A EP0224666A1 EP 0224666 A1 EP0224666 A1 EP 0224666A1 EP 86112735 A EP86112735 A EP 86112735A EP 86112735 A EP86112735 A EP 86112735A EP 0224666 A1 EP0224666 A1 EP 0224666A1
Authority
EP
European Patent Office
Prior art keywords
guide sleeve
sleeve
hollow cylindrical
housing
hand
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
EP86112735A
Other languages
German (de)
English (en)
Other versions
EP0224666B1 (fr
Inventor
Dieter Goppelt
Dieter Schmidt
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.)
INA Waelzlager Schaeffler OHG
Original Assignee
INA Waelzlager Schaeffler OHG
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 INA Waelzlager Schaeffler OHG filed Critical INA Waelzlager Schaeffler OHG
Publication of EP0224666A1 publication Critical patent/EP0224666A1/fr
Application granted granted Critical
Publication of EP0224666B1 publication Critical patent/EP0224666B1/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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/245—Hydraulic tappets
    • F01L1/25—Hydraulic tappets between cam and valve stem

Definitions

  • the invention relates to an automatically hydraulically adjusting valve tappet, which is arranged in a guide bore of a cylinder head of an internal combustion engine and against whose one end face a control cam runs, and which, on the other hand, rests with a second end face against the end of a valve stem, the valve tappet being made from a cup Housing consists, which comprises a hollow cylindrical wall, which is closed at one end by a bottom, against which the control cam runs from the outside, and in which a concentric to the hollow cylindrical wall guide sleeve is arranged, the end facing away from the bottom in the center a disc part opens, which merges with its outer circumference into the hollow cylindrical wall of the housing, and which guide sleeve is at its other end at a distance from the floor, the actual hydraulic play compensation element being longitudinally displaceable in the guide sleeve ch, which is formed by an inner piston and an overlapping outer piston, which are guided in a longitudinally displaceable manner, and which together define an oil pressure chamber which is connected to
  • the invention has for its object to improve this known plunger by a simple structural measure so that it does not lose its advantages, but on the other hand avoids the disadvantages described.
  • a longitudinal channel is formed at a single circumferential point between the sleeve extending from the bottom and the guide sleeve, which allows oil to pass from the annular oil reservoir into an annular space which is delimited on the one hand by the sleeve and on the other hand by the inner piston .
  • the fact that the cross-section of the longitudinal channel has been reduced to a small fraction of the cross-section of the annular oil channel in the known tappet means that on the one hand it is filled up very quickly even when empty.
  • the plunger shown in Fig. 1 consists of the cup-shaped housing 1, which consists of the hollow cylindrical wall 2 and the bottom 3 integral therewith.
  • an inner part 4 is arranged, which consists of the disc part 5 and the cylindrical guide approximately sleeve 6 is formed.
  • the disk part 5 lies against the circumferential groove 8 formed in the hollow cylindrical wall and, on the other hand, is covered by the bead 9 formed out of the hollow cylindrical wall.
  • the hydraulic lash adjuster 10 is mounted, which consists of the outer piston 11, which is slidably guided in the guide sleeve 6, and on the other hand, in turn, slidably and tightly receives the inner piston 12.
  • This has at its end facing the bottom 3 a central oil storage space 13, which is in fluid communication with an annular space 16 by means of the recess 14 in the inner surface 15 of the bottom 3, which is delimited by the inner piston 12 on the one hand and a sleeve 17 on the other, which starting from the bottom 3, it extends over the cylindrical guide sleeve 6 into the vicinity of the disk part 5.
  • the sleeve 17 is dimensioned such that it overlaps the guide sleeve 6 on the outside with its bore and has at least one circumferential point with a longitudinally extending groove-shaped formation 18 which, together with the guide sleeve 6, delimits a longitudinal channel 19 via which oil from the outside annular oil storage space 20 in the annular space 16 and from there can finally get into the central oil storage space 13. From there, the oil is fed into the high-pressure oil chamber 22 in a known manner via the check valve 21. In order to ensure that the annular space 16 is sealed off from the annular oil storage space 20, the sleeve 17 can be connected to the inner surface 15 of the base 3 by the weld 23.
  • FIG. 2 differs from that of FIG. 1 only in that the sleeve 17 is also provided with a closed base 24 at its end facing the base 3. This eliminates the need for the sleeve 17 by means of additional measures such. B. welding, soldering, gluing or the like over that to seal annular oil reservoir 20. Rather, the sleeve 17 with its closed base 24 can simply be inserted loosely, because in operation it is pressed against the inner surface 15 of the base 3 by the inner piston 12.
  • a recess 25 is provided on at least one circumferential point of the inner piston 12 on its end face.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP86112735A 1985-11-29 1986-09-15 Poussoir de soupape à autoréglage hydraulique Expired - Lifetime EP0224666B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3542192 1985-11-29
DE19853542192 DE3542192A1 (de) 1985-11-29 1985-11-29 Sich selbsttaetig hydraulisch einstellender ventilstoessel

Publications (2)

Publication Number Publication Date
EP0224666A1 true EP0224666A1 (fr) 1987-06-10
EP0224666B1 EP0224666B1 (fr) 1990-04-11

Family

ID=6287144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112735A Expired - Lifetime EP0224666B1 (fr) 1985-11-29 1986-09-15 Poussoir de soupape à autoréglage hydraulique

Country Status (4)

Country Link
US (1) US4721076A (fr)
EP (1) EP0224666B1 (fr)
JP (1) JPH0647925B2 (fr)
DE (2) DE3542192A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266685A1 (fr) * 1986-11-06 1988-05-11 INA Wälzlager Schaeffler KG Poussoir de soupape à réglage hydraulique automatique
EP0386474A1 (fr) * 1989-03-08 1990-09-12 INA Wälzlager Schaeffler KG Poussoir de soupape à autoréglage hydraulique
EP0396288A1 (fr) * 1989-04-20 1990-11-07 Eaton Engine Lifters Spa Poussoir hydraulique

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623638C2 (de) * 1986-07-12 1994-02-24 Schaeffler Waelzlager Kg Sich selbsttätig hydraulisch einstellender Ventilstößel
DE3810436A1 (de) * 1988-03-26 1989-10-12 Schaeffler Waelzlager Kg Sich selbsttaetig hydraulisch einstellender ventilstoessel
DE3828635A1 (de) * 1988-08-24 1990-03-08 Daimler Benz Ag Verfahren zum herstellen von tassenstoesseln fuer hubkolbenmaschinen
US4924821A (en) * 1988-12-22 1990-05-15 General Motors Corporation Hydraulic lash adjuster and bridge assembly
IT1229355B (it) * 1989-05-23 1991-08-08 Eaton Automotive Spa Punteria idraulica con circolazione dell'olio lungo un percorso sviluppantesi per 360[ su due livelli.
DE3920729A1 (de) * 1989-06-24 1991-01-10 Gmb Giesserei & Maschinenbau B Tassenstoesselkoerper fuer ventilstoessel
DE4332110A1 (de) * 1993-09-22 1995-03-23 Schaeffler Waelzlager Kg Stößel mit hydraulischem Ventilspielausgleich
DE19630443A1 (de) * 1996-07-27 1998-01-29 Schaeffler Waelzlager Kg Hydraulisches Spielausgleichselement
US5758613A (en) * 1997-01-30 1998-06-02 Eaton Corporation Hydraulic lash adjuster and biased normally open check valve system therefor
DE102006045017A1 (de) * 2006-09-23 2008-03-27 Schaeffler Kg Hydraulisches Abstützelement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055399A1 (fr) * 1980-12-29 1982-07-07 Eaton Corporation Dispositif hydraulique de rattrapage de jeu comprenant une butée de plongeur
DE3412153A1 (de) * 1984-03-31 1985-10-10 Motomak Motorenbau, Maschinen- u. Werkzeugfabrik, Konstruktionen GmbH, 8070 Ingolstadt Verfahren zum befestigen eines trichterfoermigen fuehrungsteiles in der bohrungswand des tassenfoermigen gehaeuses eines sich selbsttaetig hydraulisch einstellenden ventilstoessels

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2929890A1 (de) * 1979-07-24 1981-02-12 Audi Nsu Auto Union Ag Stoessel fuer den ventiltrieb einer brennkraftmaschine
JPS5965508A (ja) * 1982-10-08 1984-04-13 Aisin Seiki Co Ltd Ｏｈｃダイレクトタイプ用油圧リフタ
JPS60182301A (ja) * 1984-02-29 1985-09-17 Atsugi Motor Parts Co Ltd 直動型動弁機構
DE3412175A1 (de) * 1984-03-31 1985-10-10 Motomak Motorenbau, Maschinen- u. Werkzeugfabrik, Konstruktionen GmbH, 8070 Ingolstadt Tassenfoermiges gehaeuse eines sich selbsttaetig hydraulisch einstellenden ventilstoessels fuer brennkraftmaschinen mit obenliegender nockenwelle
JPS611606U (ja) * 1984-06-11 1986-01-08 日産自動車株式会社 油圧リフタ
DE3437478A1 (de) * 1984-10-12 1986-04-17 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Sich selbsttaetig hydraulisch einstellender ventilstoessel
DE3500425A1 (de) * 1985-01-09 1986-07-10 Motomak Motorenbau, Maschinen- u. Werkzeugfabrik, Konstruktionen GmbH, 8070 Ingolstadt Hydraulischer tassenstoessel fuer verbrennungsmotoren

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055399A1 (fr) * 1980-12-29 1982-07-07 Eaton Corporation Dispositif hydraulique de rattrapage de jeu comprenant une butée de plongeur
DE3412153A1 (de) * 1984-03-31 1985-10-10 Motomak Motorenbau, Maschinen- u. Werkzeugfabrik, Konstruktionen GmbH, 8070 Ingolstadt Verfahren zum befestigen eines trichterfoermigen fuehrungsteiles in der bohrungswand des tassenfoermigen gehaeuses eines sich selbsttaetig hydraulisch einstellenden ventilstoessels

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 8, Nr. 170 (M-315)[1607], 7. August 1984; & JP-A-59 65 508 (AISHIN SEIKI K.K.) 13-04-1984 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266685A1 (fr) * 1986-11-06 1988-05-11 INA Wälzlager Schaeffler KG Poussoir de soupape à réglage hydraulique automatique
EP0386474A1 (fr) * 1989-03-08 1990-09-12 INA Wälzlager Schaeffler KG Poussoir de soupape à autoréglage hydraulique
EP0396288A1 (fr) * 1989-04-20 1990-11-07 Eaton Engine Lifters Spa Poussoir hydraulique

Also Published As

Publication number Publication date
US4721076A (en) 1988-01-26
EP0224666B1 (fr) 1990-04-11
JPS62131906A (ja) 1987-06-15
DE3542192A1 (de) 1987-06-04
JPH0647925B2 (ja) 1994-06-22
DE3670338D1 (de) 1990-05-17

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