EP0212162A1 - Poussoir de soupape à réglage hydraulique automatique - Google Patents

Poussoir de soupape à réglage hydraulique automatique Download PDF

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Publication number
EP0212162A1
EP0212162A1 EP86108970A EP86108970A EP0212162A1 EP 0212162 A1 EP0212162 A1 EP 0212162A1 EP 86108970 A EP86108970 A EP 86108970A EP 86108970 A EP86108970 A EP 86108970A EP 0212162 A1 EP0212162 A1 EP 0212162A1
Authority
EP
European Patent Office
Prior art keywords
guide sleeve
hollow cylindrical
bore
piston
cylindrical wall
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
EP86108970A
Other languages
German (de)
English (en)
Other versions
EP0212162B1 (fr
Inventor
Walter Dipl.-Ing. Speil
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.)
Motomak Motorenbau Maschinen und Werkzeugfabrik Konstruktionen GmbH
Original Assignee
Motomak Motorenbau Maschinen und Werkzeugfabrik Konstruktionen GmbH
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 Motomak Motorenbau Maschinen und Werkzeugfabrik Konstruktionen GmbH filed Critical Motomak Motorenbau Maschinen und Werkzeugfabrik Konstruktionen GmbH
Publication of EP0212162A1 publication Critical patent/EP0212162A1/fr
Application granted granted Critical
Publication of EP0212162B1 publication Critical patent/EP0212162B1/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 which has a cylindrical guide sleeve concentric to the hollow cylindrical wall, which extends from the bottom to the center of one Disc part extends, which merges with its outer circumference in the hollow cylindrical wall of the housing, whereby an annular oil reservoir is limited between the hollow cylindrical wall and the cylindrical guide sleeve, which supplies oil through an outwardly leading bore gt, wherein the actual hydraulic lash adjuster is guided in the guide sleeve, which is formed by an inner piston and an overlapping outer piston, which are guided in a longitudinally displaceable manner,
  • the invention has for its object to ensure by simple constructional measures that air settling at the upper end of the outer annular oil reservoir cannot be sucked into the central oil reservoir.
  • the guide sleeve has an inlet opening which opens into a channel extending towards the floor, which extends from the outer surface of the outer bulb on the one hand and the bore of the guide sleeve is limited on the other hand, and that an oil transfer opening is provided in the central oil reservoir at the end of the inner piston facing the bottom.
  • the through-hole should preferably be in the vicinity of the end of the guide sleeve facing away from the floor should mean that it should be arranged as far away from the bottom end of the guide sleeve as possible. It is understood that this does not mean that it has to be arranged at the opposite end of the guide sleeve. Rather, it already brings a significant improvement in the situation if this through hole is arranged, for example, in the middle of the longitudinal extension of the guide sleeve.
  • 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.
  • this housing an inner part 4 is arranged, which is formed from the disc part 5 and the cylindrical guide sleeve 6.
  • these two parts are firmly connected to one another by crimping.
  • additional welding, soldering or the like is possible at this point.
  • 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 cylindrical guide sleeve 6 engages in a groove in the front Inner surface 10 of the bottom 3 a.
  • the guide sleeve 6 has an enlarged inner diameter 11 in order to provide space for a plate washer 12, with which the hydraulic play compensation element 13 is secured against slipping out of the bore of the guide sleeve 6.
  • the annular cavity which is delimited by the hollow cylindrical wall 2, the disk part 5, the cylindrical guide sleeve 6 and the inner surface 10 of the base 3, forms an annular oil reservoir 14 which supplies oil from the outside through the bore 15 arranged in the circumferential groove 8 can be.
  • the hydraulic lash adjuster 13 consists of the outer piston 16, which is slidably guided in the guide sleeve 6 and, on the other hand, slidably receives the inner piston 17 with tight play.
  • the latter has a central oil reservoir 18, which is in fluid communication with the annular space 20 between the inner piston 17 and the guide sleeve 6 by means of the recess 19 in the inner surface 10 of the base 3.
  • an inlet opening 26 is provided near the end of the guide sleeve 6 facing away from the bottom 3, which opens into a longitudinal groove 27 which is arranged in the bore wall of the guide sleeve 6 and itself extends towards the bottom 3.
  • the oil from the outer annular storage space 14 thus passes through the inlet opening 26 into the longitudinal groove 27, from there into the annular space 20 and via the recess 19 into the central oil storage space 18 any air that settles in the outer oil storage space 14 at the upper end can therefore not get into the central oil storage space 18.
  • the plunger design shown in FIG. 2 differs from that of FIG. 1 essentially by the different design of the outer cup-shaped housing 1.
  • the guide sleeve 28 is formed here in one piece with the bottom 3 and the outer oil storage space 14 is on its side facing away from the bottom 3 Ended by a separate disc part 29, which is caulked at its outer edge to the bore of the hollow cylindrical wall 2, and which is sealed against the end of the guide sleeve 28 by an O-ring 30 inserted therein.
  • the oil is transferred from the annular oil storage space 14 into the central oil storage space 18 through an inlet opening 31 provided in the guide sleeve 28 at its end facing away from the floor, which opens into the longitudinal groove 32 provided in the bore of the guide sleeve 28.
  • the oil reaches the annular space 33 between the inner piston 17 and the guide sleeve 28, and from there through a recess 34 provided at the front end of the inner piston 17 finally into the central oil storage space 18.
  • the plunger design shown in FIG. 3 differs from that of FIG. 1 in that the area of the guide sleeve 6, which has the enlarged inner diameter 11, is extended and the inlet opening 35 is located at the end of this area facing away from the floor.
  • the arrangement of an additional longitudinal groove in the bore of the guide sleeve 6 is thereby unnecessary.
  • the inlet opening 35 is not as far away from the floor 3 as in the embodiments according to FIGS. 1 and 2, it will nevertheless be able to fully fulfill its task in the majority of cases because the outer oil storage space 14 generally does not contain as much air is that this extends into the area of the inlet opening 35.
  • suitable measures e.g. soldering, gluing or the like
  • soldering e.g. soldering, gluing or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP86108970A 1985-08-08 1986-07-02 Poussoir de soupape à réglage hydraulique automatique Expired - Lifetime EP0212162B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853528432 DE3528432A1 (de) 1985-08-08 1985-08-08 Sich selbsttaetig hydraulisch einstellender ventilstoessel
DE3528432 1985-08-08

Publications (2)

Publication Number Publication Date
EP0212162A1 true EP0212162A1 (fr) 1987-03-04
EP0212162B1 EP0212162B1 (fr) 1990-12-27

Family

ID=6277997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86108970A Expired - Lifetime EP0212162B1 (fr) 1985-08-08 1986-07-02 Poussoir de soupape à réglage hydraulique automatique

Country Status (6)

Country Link
US (1) US4745889A (fr)
EP (1) EP0212162B1 (fr)
JP (1) JPS6235004A (fr)
BR (1) BR8603773A (fr)
DE (2) DE3528432A1 (fr)
ES (1) ES293880Y (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389710A3 (fr) * 1989-03-28 1991-05-02 Fuji Oozx Inc. Compensateur hydraulique de jeu pour soupape
EP0532294A1 (fr) * 1991-09-12 1993-03-17 Eaton Services Limited Poussoir hydraulique du type à action directe ayant un réservoir d'huile extérieur

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3153091B2 (ja) * 1994-03-10 2001-04-03 株式会社荏原製作所 廃棄物の処理方法及びガス化及び熔融燃焼装置
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
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.
JP2782087B2 (ja) * 1989-06-02 1998-07-30 日鍛バルブ株式会社 直動型油圧ラッシュアジャスタ
JP2782088B2 (ja) * 1989-06-02 1998-07-30 日鍛バルブ株式会社 直動型油圧ラッシュアジャスタ
DE4138985C2 (de) * 1990-12-07 2001-03-22 Volkswagen Ag Hydraulische Längenausgleichsvorrichtung, insbesondere Spielausgleichsvorrichtung für ein Hubventil
US5280771A (en) * 1992-09-23 1994-01-25 Eaton Corporation Direct acting hydraulic tappet
DE4340035B4 (de) * 1992-12-10 2006-02-23 Ina-Schaeffler Kg Mechanischer Tassenstößel
DE4332110A1 (de) * 1993-09-22 1995-03-23 Schaeffler Waelzlager Kg Stößel mit hydraulischem Ventilspielausgleich
US5922090A (en) 1994-03-10 1999-07-13 Ebara Corporation Method and apparatus for treating wastes by gasification
DE19733027A1 (de) * 1997-07-31 1999-02-04 Schaeffler Waelzlager Ohg Hydraulische Ventilspielausgleichsvorrichtung
KR100559622B1 (ko) * 1999-07-30 2006-03-10 현대자동차주식회사 흡배기 밸브의 타음 저감용 유압 간극 조절기 구조
RU2235890C1 (ru) * 2002-12-24 2004-09-10 Открытое акционерное общество "Павловский машиностроительный завод ВОСХОД" Гидравлический толкатель
JP5081667B2 (ja) * 2008-02-28 2012-11-28 カルソニックカンセイ株式会社 気体圧縮機
JP7226173B2 (ja) * 2019-07-30 2023-02-21 株式会社デンソー 燃料噴射システムの制御装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509858A (en) * 1968-05-20 1970-05-05 Gen Motors Corp Overhead cam valve lifter
US3658038A (en) * 1971-01-04 1972-04-25 Johnson Products Inc Tappet for overhead camshaft engine
EP0030781A1 (fr) * 1979-12-05 1981-06-24 Eaton Corporation Poussoir hydraulique pour vanne à entrainement direct
FR2476740A1 (fr) * 1980-02-22 1981-08-28 Motomak Poussoir de soupape pour moteurs a combustion interne avec arbre a cames en tete
EP0140674A2 (fr) * 1983-10-28 1985-05-08 Eaton Corporation Elément d'ajustage de jeu avec une surface d'usure noyée
EP0145445A2 (fr) * 1983-12-07 1985-06-19 Eaton Corporation Poussoir de soupape hydraulique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758957A1 (de) * 1977-12-30 1979-07-05 Wizemann Gmbh U Co J Hydraulischer tassenstoessel
US4470381A (en) * 1979-12-05 1984-09-11 Eaton Corporation Hydraulic tappet for direct-acting valve gear
US4367701A (en) * 1979-12-05 1983-01-11 Eaton Corporation Acting valve gear
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
DE3437478A1 (de) * 1984-10-12 1986-04-17 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Sich selbsttaetig hydraulisch einstellender ventilstoessel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509858A (en) * 1968-05-20 1970-05-05 Gen Motors Corp Overhead cam valve lifter
US3658038A (en) * 1971-01-04 1972-04-25 Johnson Products Inc Tappet for overhead camshaft engine
EP0030781A1 (fr) * 1979-12-05 1981-06-24 Eaton Corporation Poussoir hydraulique pour vanne à entrainement direct
FR2476740A1 (fr) * 1980-02-22 1981-08-28 Motomak Poussoir de soupape pour moteurs a combustion interne avec arbre a cames en tete
EP0140674A2 (fr) * 1983-10-28 1985-05-08 Eaton Corporation Elément d'ajustage de jeu avec une surface d'usure noyée
EP0145445A2 (fr) * 1983-12-07 1985-06-19 Eaton Corporation Poussoir de soupape hydraulique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, Band 8, Nr. 197 (M-324)[1634], 11. September 1984; & JP-A-59 087 212 (AISHIN SEIKI K.K.) 19-05-1984 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389710A3 (fr) * 1989-03-28 1991-05-02 Fuji Oozx Inc. Compensateur hydraulique de jeu pour soupape
EP0532294A1 (fr) * 1991-09-12 1993-03-17 Eaton Services Limited Poussoir hydraulique du type à action directe ayant un réservoir d'huile extérieur

Also Published As

Publication number Publication date
JPH0445647B2 (fr) 1992-07-27
JPS6235004A (ja) 1987-02-16
ES293880U (es) 1986-11-01
DE3528432A1 (de) 1987-02-19
EP0212162B1 (fr) 1990-12-27
BR8603773A (pt) 1987-03-10
ES293880Y (es) 1987-07-01
US4745889A (en) 1988-05-24
DE3676587D1 (de) 1991-02-07

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