EP0253073B1 - Method to produce means for preventing rotation for a roller tappet device of an internal-combustion engine - Google Patents

Method to produce means for preventing rotation for a roller tappet device of an internal-combustion engine Download PDF

Info

Publication number
EP0253073B1
EP0253073B1 EP87105773A EP87105773A EP0253073B1 EP 0253073 B1 EP0253073 B1 EP 0253073B1 EP 87105773 A EP87105773 A EP 87105773A EP 87105773 A EP87105773 A EP 87105773A EP 0253073 B1 EP0253073 B1 EP 0253073B1
Authority
EP
European Patent Office
Prior art keywords
tappet
bore
section
roller
guide groove
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.)
Expired - Lifetime
Application number
EP87105773A
Other languages
German (de)
French (fr)
Other versions
EP0253073A1 (en
Inventor
Marc Leer
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.)
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Original Assignee
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
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 Ford Werke GmbH, Ford France SA, Ford Motor Co Ltd filed Critical Ford Werke GmbH
Publication of EP0253073A1 publication Critical patent/EP0253073A1/en
Application granted granted Critical
Publication of EP0253073B1 publication Critical patent/EP0253073B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • 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
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • F01L2305/00—Valve arrangements comprising rollers
    • 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
    • F01L2307/00—Preventing the rotation of tappets

Definitions

  • the invention relates to a method for producing an anti-rotation device for a roller tappet arrangement for internal combustion engines, of the type explained in the preamble of the claim.
  • an anti-rotation device of a roller tappet arrangement for internal combustion engines which comprises an axially running guide groove in a tappet bore in the cylinder block or in the cylinder head and an axially slidably interacting guide part with the tappet body guided in the tappet bore is set.
  • the known anti-rotation device has the disadvantage that the production of the guide groove having a rectangular cross section in the tappet bore has to be carried out by milling or the like, a working method which can only be carried out in the course of a transfer line for producing a cylinder block of an internal combustion engine with a particular additional outlay.
  • the plunger body having a cylindrical cross section which is manufactured separately, must also be provided with a rectangular receiving groove for the guide part and this must be fixed in the plunger body.
  • the object of the invention is to provide a method for producing an anti-rotation device for a roller tappet arrangement for internal combustion engines, by means of which the required axial guide groove in the cylinder block or in the cylinder head, which lies parallel to the course of the tappet bore, can be produced in a simple manner on a conventional transfer line for manufacture a cylinder block or a cylinder head of an internal combustion engine can be produced.
  • this object is achieved in that the method steps indicated in the characterizing part of the claim are listed for producing an anti-rotation device for a roller tappet arrangement for internal combustion engines, of the type explained in the preamble of the claim.
  • the guide groove is produced by drilling a first, smaller bore in the area of the cylinder block or the cylinder head in which the tappet bore is provided, parallel to the intended course of the tappet bore and by subsequently drilling the tappet bore in such a way that that the small bore is opened to a semicircular cross section, these two work steps can be easily integrated into the transfer line for the production of cylinder blocks, where the multitude of drilling operations can be performed in the required high quality by the given processing units.
  • the separate production of the plunger body having a cylindrical cross section and the fixing of the required guide part with a round or partially round cross section can be carried out in a variety of different ways.
  • a cylindrical tappet bores 4 are provided as guides for a valve tappet 5 with a cylindrical tappet body 6.
  • the valve tappet 5 can either be a normal roller valve tappet or, preferably, a roller valve tappet with a hydraulic lash adjuster.
  • the exemplary embodiment shown in the figures relates to a roller tappet 5, the cylindrical tappet body 6 of which has a cylindrical bore 7 for receiving a hydraulic lash adjuster 8 with a tappet rod socket 9.
  • the lower end of the tappet body 6 is fork-shaped or cylindrical and, via an axis 10, receives a needle bearing 11 and a roller 12 which cooperates with the cams on the camshaft 1.
  • the tappet body 6 is provided on its outer circumference with an axial guide groove 13 of semicircular cross section, which can preferably be produced by milling or grinding.
  • an axial guide groove 14 of semicircular cross section is also provided in the cylindrical tappet bore 4, which is produced in such a way that a correspondingly small bore is drilled in the cylinder head or in the cylinder block 3 before the large cylindrical one Ram bore 4 is drilled, which then opens part of the small bore longitudinally.
  • a guide member 16 with a round cross-section is arranged on a closure element 15 for the lash adjuster 8 of the roller plunger 5, both in the axial guide groove 13 on the roller plunger 5 and in the axial guide groove 14 engages in the tappet bore 4.
  • the closure element 15 is designed here as a pressed sheet metal part, on which the guide part 16 is formed by rolling in a C-shape. After tilting the guide part 16 by 90 ° relative to the neck part of the closure element, the Ver closing element 15 on the roller tappet 5 are fixed to an annular groove 17.
  • the flare or roll-in connection which is required in any case and which is required for fixing the individual parts of a hydraulic play compensation device within the roller tappet 5, can be used, as a result of which no additional work step is required.
  • the attachment of a guide part to the tappet body can also be carried out by other known fastening methods, such as latching, clamping, caulking, welding or the like, and the guide part can be completely independent of a closure part for the hydraulic play compensation device of the roller tappet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer Verdrehsicherung einer Rollenstößelanordnung für Brennkraftmaschinen, der im Oberbegriff des Patentanspruchs erläuterten Art.The invention relates to a method for producing an anti-rotation device for a roller tappet arrangement for internal combustion engines, of the type explained in the preamble of the claim.

Aus der US-A 2 175 466 ist eine Verdrehsicherung einer Rollenstößelanordnung für Brennkraftmaschinen bekannt, die eine axial laufende Führungsnut in einer Stößelbohrung im Zylinderblock bzw. im Zylinderkopf sowie ein mit der Führungsnut axial gleitend zusammenwirkendes Führungsteil umfaßt, das an den in der Stößelbohrung geführten Stößelkörper festgelegt ist.From US-A 2 175 466 an anti-rotation device of a roller tappet arrangement for internal combustion engines is known, which comprises an axially running guide groove in a tappet bore in the cylinder block or in the cylinder head and an axially slidably interacting guide part with the tappet body guided in the tappet bore is set.

Die bekannte Verdrehsicherung weist den Nachteil auf, daß die Herstellung der einen rechteckigen Querschnitt aufweisenden Führungsnut in der Stößelbohrung durch Fräsen oder dergleichen erfolgen muß, ein Arbeitsverfahren, das im Zuge einer Transferstraße zur Herstellung eines Zylinderblockes einer Brennkraftmaschine nur mit besonderem zusätzlichem Aufwand durchgeführt werden kann.The known anti-rotation device has the disadvantage that the production of the guide groove having a rectangular cross section in the tappet bore has to be carried out by milling or the like, a working method which can only be carried out in the course of a transfer line for producing a cylinder block of an internal combustion engine with a particular additional outlay.

Der einen zylindrischen Querschnitt aufweisende Stößelkörper, des separat hergestellt wird, muß gleichfalls mit einer rechteckigen Aufnahmenut für das Führungsteil versehen werden und dieses muß im Stößelkörper festgelegt werden.The plunger body having a cylindrical cross section, which is manufactured separately, must also be provided with a rectangular receiving groove for the guide part and this must be fixed in the plunger body.

Die Aufgabe der Erfindung ist es, ein Verfahren zur Herstellung eine Verdrehsicherung einer Rollenstößelanordnung für Brennkraftmaschinen zu schaffen, durch das die erforderliche axiale Führungsnut im Zylinderblock bzw. im Zylinderkopf, die parallel zum Verlauf der Stößelbohrung liegt, in einfacher Weise auf einer üblichen Transferstraße zur Herstellung eines Zylinderblockes bzw. eines Zylinderkopfes einer Brennkraftmaschine herstellbar ist.The object of the invention is to provide a method for producing an anti-rotation device for a roller tappet arrangement for internal combustion engines, by means of which the required axial guide groove in the cylinder block or in the cylinder head, which lies parallel to the course of the tappet bore, can be produced in a simple manner on a conventional transfer line for manufacture a cylinder block or a cylinder head of an internal combustion engine can be produced.

Gemäß der Erfindung wird diese Aufgabe gelöst, indem zur Herstellung einer Verdrehsicherung einer Rollenstößelanordnung für Brennkraftmaschinen, der im Oberbegriff des Patentanspruchs erläuterten Art die im Kennzeichenteil des Patentanspruchs aufgezeigten Verfahrensschritte aufgeführt werden.According to the invention, this object is achieved in that the method steps indicated in the characterizing part of the claim are listed for producing an anti-rotation device for a roller tappet arrangement for internal combustion engines, of the type explained in the preamble of the claim.

Dadurch, daß das Herstellen der Führungsnut durch das Bohren einer ersten, kleineren Bohrung in dem Bereich des Zylinderblocks bzw. des Zylinderkopfes, in dem die Stößelbohrung vorgesehen ist, parallel zum vorgesehenen Verlauf der Stößelbohrung erfolgt und durch das anschließende Bohren der Stößelbohrung in der Weise, daß die kleine Bohrung zu einem halbrunden Querschnitt geöffnet wird, können diese beiden Arbeitsschritte in einfacher Weise in die Transferstraße zur Herstellung von Zylinderblöcken eingebunden werden, wo die Vielzahl von Bohroperationen durch die gegebenen Bearbeitungseinheiten in der erforderlichen hohen Qualität geleistet werden können.Because the guide groove is produced by drilling a first, smaller bore in the area of the cylinder block or the cylinder head in which the tappet bore is provided, parallel to the intended course of the tappet bore and by subsequently drilling the tappet bore in such a way that that the small bore is opened to a semicircular cross section, these two work steps can be easily integrated into the transfer line for the production of cylinder blocks, where the multitude of drilling operations can be performed in the required high quality by the given processing units.

Die separate Herstellung des einen zylindrischen Querschnitt aufweisenden Stößelkörpers und die Festlegung des erforderlichen Führungsteiles mit einem runden oder teilrunden Querschnitt kann hierbei in verschiedenster, vielfältiger Weise erfolgen.The separate production of the plunger body having a cylindrical cross section and the fixing of the required guide part with a round or partially round cross section can be carried out in a variety of different ways.

Die Erfindung wird anhand eines in den Zeichnungen gezeigten Ausführungsbeispieles näher erläutert.The invention is explained in more detail using an exemplary embodiment shown in the drawings.

Es zeigt:

  • Fig. 1 eine halbseitige Ansicht und einen halbseitigen vertikalen Schnitt durch eine Rollenstößelanordnung mit Verdrehsicherung gemäß der Erfindung;
  • Fig. 2 einen vereinfachten vertikalen Schnitt durch den Rollenstößel ohne Führungsteil;
  • Fig. 3 eine Draufsicht auf den Rollenstößel in Fig. 2;
  • Fig. 4 einen vertikalen Schnitt entlang der Achse einer Stößelbohrung im Zylinderblock und
  • Fig. 5 eine Teil-Draufsicht auf die Stößelbohrung in Fig. 4.
It shows:
  • Figure 1 is a half-sided view and a half-sided vertical section through a roller tappet arrangement with anti-rotation device according to the invention.
  • Figure 2 is a simplified vertical section through the roller tappet without a guide member.
  • Fig. 3 is a plan view of the roller tappet in Fig. 2;
  • Fig. 4 is a vertical section along the axis of a tappet bore in the cylinder block and
  • 5 shows a partial top view of the tappet bore in FIG. 4.

Wie aus Fig. 1 zu ersehen ist, ist in dem eine Nockenwelle 1 übergreifenden Teil 2 eines Zylinderblockes 3 bzw eines Zylinderkopfes eine zylindrische Stößelbohrungen 4 als Führungen für einen Ventilstößel 5 mit zylindrischem Stößelkörper 6 vorgesehen.As can be seen from FIG. 1, in the part 2 of a cylinder block 3 or a cylinder head which overlaps a camshaft 1, a cylindrical tappet bores 4 are provided as guides for a valve tappet 5 with a cylindrical tappet body 6.

Der Ventilstößel 5 kann entweder ein normaler Rollen-Ventilstößel oder aber in bevorzugter Weise ein Rollen-Ventilstößel mit hydraulischer Spielausgleichseinrichtung sein.The valve tappet 5 can either be a normal roller valve tappet or, preferably, a roller valve tappet with a hydraulic lash adjuster.

Das in den Figuren gezeigte Ausführungsbeispiel bezieht sich auf einen Rollenstößel 5, dessen zylindrischer Stößelkörper 6 eine zylindrische Bohrung 7 zur Aufnahme einer hydraulischen Spielausgleichseinrichtung 8 mit einer Stößelstangenpfanne 9 aufweist. Das untere Ende des Stößelkörpers 6 ist gabelförmig oder zylindrish ausgebildet und nimmt über eine Achse 10 ein Nadellager 11 und eine Rolle 12 auf, die mit den Nocken auf der Nockenwelle 1 zusammenwirkt.The exemplary embodiment shown in the figures relates to a roller tappet 5, the cylindrical tappet body 6 of which has a cylindrical bore 7 for receiving a hydraulic lash adjuster 8 with a tappet rod socket 9. The lower end of the tappet body 6 is fork-shaped or cylindrical and, via an axis 10, receives a needle bearing 11 and a roller 12 which cooperates with the cams on the camshaft 1.

Wie aus Fig. 1 in Verbindung mit den Fig. 2 und 3 zu ersehen ist, ist der Stößelkörper 6 an seinem Außenumfang mit einer axialen Führungsnut 13 von halbrundem Querschnitt versehen, die vorzugsweise durch Fräsen oder Schleifen hergestellt werden kann.As can be seen from FIG. 1 in connection with FIGS. 2 and 3, the tappet body 6 is provided on its outer circumference with an axial guide groove 13 of semicircular cross section, which can preferably be produced by milling or grinding.

Wie aus den Fig. 4 und 5 zu ersehen ist, ist auch in der zylindrischen Stößelbohrung 4 eine axiale Führungsnut 14 von halbrundem Querschnitt vorgesehen, die derart hergestellt wird, daß eine entsprechend kleine Bohrung im Zylinderkopf bzw im Zylinderblock 3 gebohrt wird bevor die große zylindrische Stößelbohrung 4 gebohrt wird, die dann einen Teil der kleinen Bohrung längslaufend öffnet.As can be seen from FIGS. 4 and 5, an axial guide groove 14 of semicircular cross section is also provided in the cylindrical tappet bore 4, which is produced in such a way that a correspondingly small bore is drilled in the cylinder head or in the cylinder block 3 before the large cylindrical one Ram bore 4 is drilled, which then opens part of the small bore longitudinally.

Bei dem in Fig. 1 gezeigten Rollenstößel 5 mit hydraulischer Spielausgleichseinrichtung 8 ist an einem Verschlußelement 15 für die Spiel ausgleichseinrichtung 8 des Rollenstößels 5 ein Führungsteil 16 mit rundem Querschnitt angeordnet, das sowohl in die axiale Führungsnut 13 am Rollenstößel 5 als auch in die axiale Führungsnut 14 in der Stößelbohrung 4 eingreift.In the roller plunger 5 shown in Fig. 1 with hydraulic lash adjuster 8, a guide member 16 with a round cross-section is arranged on a closure element 15 for the lash adjuster 8 of the roller plunger 5, both in the axial guide groove 13 on the roller plunger 5 and in the axial guide groove 14 engages in the tappet bore 4.

Das Verschlußelement 15 ist hierbei als ein Blechpreßteil ausgebildet, an dem durch C-förmiges Einrollen das Führungsteil 16 gebildet wird. Nach Abkippen des Führungsteiles 16 um 90° gegenüber dem Halsteil des Verschlußelementes kann das Verschlußelement 15 am Rollenstößel 5 an einer Ringnut 17 festgelegt werden.The closure element 15 is designed here as a pressed sheet metal part, on which the guide part 16 is formed by rolling in a C-shape. After tilting the guide part 16 by 90 ° relative to the neck part of the closure element, the Ver closing element 15 on the roller tappet 5 are fixed to an annular groove 17.

Dabei kann die ohnehin erforderliche Bördel-oder Einrollverbindung, die zum Festlegen der Einzelteile einer hydraulischen Spielausgleichs einrichtung innerhalb des Rollenstößels 5 erforderlich ist, benutzt werden, wodurch kein zusätzlicher Arbeitsgang erforderlich wird.The flare or roll-in connection, which is required in any case and which is required for fixing the individual parts of a hydraulic play compensation device within the roller tappet 5, can be used, as a result of which no additional work step is required.

Die Befestigung eines Führungsteiles am Stößelkörper kann auch durch andere bekannte Befestigungsmethoden, wie Einrasten, Einklemmen, Verstemmen, Schweißen oder dergleichen erfolgen und das Führungsteil kan völlig unabhängig von einem Verschlußteil für die hydraulische Spielausgleichseinrichtung des Rollenstößels sein.The attachment of a guide part to the tappet body can also be carried out by other known fastening methods, such as latching, clamping, caulking, welding or the like, and the guide part can be completely independent of a closure part for the hydraulic play compensation device of the roller tappet.

Claims (1)

  1. A method of producing a torsion-preventing means for a roller tappet arrangement for internal combustion engines, which comprises an axially extending guide groove (14) in a tappet bore (4) in the cylinder block (3) or in the cylinder head and a guide element (16) which co-operates in an axially sliding manner with the guide groove (14) and is fixed on the tappet member (6) guided in the tappet bore (4), wherein the tappet member (6) having a cylindrical cross section and the guide element (16) are produced separately and the guide element (16) is fixed on the tappet member (6) by clamping, caulking or welding, characterised by the following steps of the method:
    a) Production of the guide groove (14) by the drilling of a first, small bore in the region of the cylinder block (3) or cylinder head, in which the tappet bore (4) is provided, parallel to the proposed course of the tappet bore (4) and by the subsequent drilling of the tappet bore (4) in such a way that the small bore is opened to a semicircular cross section;
    b) Construction of the guide element (16) during the separate production thereof with a round or partially round cross section.
EP87105773A 1986-07-02 1987-04-18 Method to produce means for preventing rotation for a roller tappet device of an internal-combustion engine Expired - Lifetime EP0253073B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863622245 DE3622245A1 (en) 1986-07-02 1986-07-02 ROLLER TOWEL ARRANGEMENT WITH TORQUE PROTECTION, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
DE3622245 1986-07-02

Publications (2)

Publication Number Publication Date
EP0253073A1 EP0253073A1 (en) 1988-01-20
EP0253073B1 true EP0253073B1 (en) 1990-04-11

Family

ID=6304251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105773A Expired - Lifetime EP0253073B1 (en) 1986-07-02 1987-04-18 Method to produce means for preventing rotation for a roller tappet device of an internal-combustion engine

Country Status (5)

Country Link
US (1) US4771741A (en)
EP (1) EP0253073B1 (en)
JP (1) JPS6325304A (en)
CA (1) CA1315621C (en)
DE (2) DE3622245A1 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638202A1 (en) * 1986-11-08 1988-05-19 Schaeffler Waelzlager Kg HYDRAULIC GAME COMPENSATION ELEMENT
DE3814700A1 (en) * 1988-04-30 1989-11-09 Schaeffler Waelzlager Kg HYDRAULIC GAME COMPENSATION ELEMENT
JPH07652Y2 (en) * 1988-07-13 1995-01-11 富士バルブ株式会社 Hydraulic valve lash adjuster
JPH072967Y2 (en) * 1988-09-30 1995-01-30 富士バルブ株式会社 Hydraulic valve lash adjuster
US4846121A (en) * 1988-10-05 1989-07-11 Ford Motor Company Variable friction roller tappets
JPH0341208U (en) * 1989-08-31 1991-04-19
DE4023885A1 (en) * 1990-07-27 1992-01-30 Bayerische Motoren Werke Ag ROLLER TOWEL WITH HYDRAULIC VALVE COMPENSATION
DE4023886A1 (en) * 1990-07-27 1992-01-30 Bayerische Motoren Werke Ag ROLLER TOWEL WITH A HYDRAULIC COMPENSATING ELEMENT
US5022356A (en) * 1990-10-05 1991-06-11 Gear Company Of America, Inc. Roller valve lifter with anti-rotation member
DE4118370A1 (en) * 1991-06-05 1992-12-10 Bayerische Motoren Werke Ag Positively locked valve tappet - has form-closed fitting inserted into a recess in tappet wall
DE4224495C2 (en) * 1992-07-24 1999-09-23 Daimler Chrysler Ag Device for guiding a tappet arranged in the cylinder head of a reciprocating piston machine for actuating a valve controlling the gas exchange of the reciprocating piston machine
US5263386A (en) * 1992-11-24 1993-11-23 General Motors Corporation Roller cam follower guide
DE4337594C2 (en) * 1993-11-04 2001-01-04 Schaeffler Waelzlager Ohg Bolt attachment to rocker arms or rocker arms
DE4338049C2 (en) * 1993-11-08 1996-05-09 Daimler Benz Ag Method for machining grooves in the reveal of a larger through hole in the cylinder head or cylinder crankcase of a diesel engine and a device for carrying out the method
US5429080A (en) * 1993-12-13 1995-07-04 Evestar Technologies, Inc. Compact internal combustion engine
DE4442057B4 (en) * 1994-11-25 2005-07-28 Ina-Schaeffler Kg Hydraulic lash adjuster
DE19501061A1 (en) * 1995-01-16 1996-07-18 Schaeffler Waelzlager Kg Twist-resistant tappet for IC engine valve gear
DE19526852A1 (en) * 1995-07-22 1997-01-23 Schaeffler Waelzlager Kg Cam follower
US5673661A (en) * 1995-11-27 1997-10-07 Jesel; Daniel Henry Valve lifter
DE19548808A1 (en) * 1995-12-27 1997-07-03 Mwp Mahle J Wizemann Pleuco Gm Transmission element, in particular roller tappet for actuating a valve, in particular for an internal combustion engine
DE19600852A1 (en) * 1996-01-12 1997-07-17 Schaeffler Waelzlager Kg Anti=rotation component of lifter of valve gear of combustion engine
DE19921215A1 (en) * 1999-05-07 2000-11-09 Schaeffler Waelzlager Ohg Making guide for cam follower used in internal combustion engine, using auxiliary part covering axial cavity for rotation preventing fitting
DE10332980A1 (en) * 2003-07-21 2005-02-10 Bayerische Motoren Werke Ag Valve tappet unit for internal combustion engine has anti-rotation element with head and foot engagement sections, with fixing structures formed in these regions for fitting under sleeve section
DE10358934A1 (en) * 2003-12-12 2005-07-07 Bayerische Motoren Werke Ag Valve ram is a plastics-based material part with integral anti-rotation locking element e.g. rib protruding from sleeve
DE102004058766A1 (en) * 2004-12-07 2006-06-08 Schaeffler Kg Bucket tappet for internal combustion engine has torsional stop element having wall with front surface supported radially inwards along outer lateral surface of cover and runs circumferentially along longitudinal axis of torsional stop
DE102006047447A1 (en) * 2006-10-07 2008-04-10 Schaeffler Kg Rocker arm support arrangement for use in intake/exhaust valve drive for internal combustion (IC) engine, has snap ring, which serves as anti-twist plate, fitted around annular groove around outer casing of housing of rocker arm support
DE102006059716A1 (en) 2006-12-18 2008-06-26 Mahle International Gmbh Non-rotating ram of a valve train
DE102012209186A1 (en) * 2012-05-31 2013-12-05 Schaeffler Technologies AG & Co. KG Plunger for a valve or pump drive, and method for producing a plunger
US10487785B2 (en) 2015-04-28 2019-11-26 Cummins Inc. Pinless tappet in a common rail high pressure fuel pump

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE358911C (en) * 1922-09-16 Maybach Motorenbau G M B H Spring-loaded tappet guide, especially for valve tappets on internal combustion engines
US1254227A (en) * 1917-11-01 1918-01-22 Abbott S Coffin Bearing for reciprocating rods.
US2175466A (en) * 1938-07-11 1939-10-10 Charles E Johnson Horizontal hydraulic valve tappet
US2807485A (en) * 1954-03-01 1957-09-24 Laurence H Seibert Machine key
FR1133730A (en) * 1955-10-18 1957-04-01 Automobiles Ettore Bugatti Valve drive, in particular for internal combustion or combustion engine
US3314303A (en) * 1965-06-28 1967-04-18 Int Harvester Co Nonrotatable camfollower
US3822683A (en) * 1972-12-11 1974-07-09 Caterpillar Tractor Co Roller bearing retaining clip
US3886808A (en) * 1972-12-26 1975-06-03 Caterpillar Tractor Co Engine valve lifter guide
BR7601046A (en) * 1975-02-18 1976-09-14 Eaton Corp HYDRAULIC SLACK ADJUSTER FOR VALVE CONTROL OF AN INTERNAL COMBUSTION ENGINE
US3998190A (en) * 1975-06-13 1976-12-21 Caterpillar Tractor Co. Roller follower with anti-rotation retainer
FI56257C (en) * 1975-12-31 1979-12-10 Waertsilae Oy Ab STYRANORDNING FOER KOLV
DE2758862A1 (en) * 1977-12-30 1979-07-05 Daimler Benz Ag Cam follower for IC engine valve mechanism - has rectangular head with rotation prevented by screw received in stem slot
US4793295A (en) * 1984-11-08 1988-12-27 Stanadyne, Inc. Retainer for a hydraulic lash adjuster

Also Published As

Publication number Publication date
CA1315621C (en) 1993-04-06
DE3762258D1 (en) 1990-05-17
JPS6325304A (en) 1988-02-02
US4771741A (en) 1988-09-20
DE3622245C2 (en) 1990-04-26
EP0253073A1 (en) 1988-01-20
DE3622245A1 (en) 1988-01-14

Similar Documents

Publication Publication Date Title
EP0253073B1 (en) Method to produce means for preventing rotation for a roller tappet device of an internal-combustion engine
EP1844216B1 (en) Adjustable camshaft, in particular for internal combustion engines of motor vehicles, comprising a hydraulic adjusting system
DE102011054218B4 (en) Internal combustion engine and valve train for an internal combustion engine
EP0812379B1 (en) Assembled multi-layer shafts
DE102004009074B3 (en) Compound cam for camshaft for automobile engine assembled from 2 individual cam parts coupled together via intermediate ring
DE3531890A1 (en) CAMSHAFT
EP1619358A1 (en) Periodically actuated tappet for a valve or pump drive
ZA200102485B (en) Device for arranging, clamping or contracting a ring-shaped securing mechanism.
EP3239482B1 (en) Valve drive for a combustion engine
DE4302877C2 (en) Pestle
WO2000017512A1 (en) Fuel injection valve for internal combustion engines
DE3409235C2 (en)
WO1998016726A1 (en) Tappet for the valve gear mechanism of an internal combustion engine
DE19520306A1 (en) Composite camshaft, in particular for internal combustion engines
WO2018041698A1 (en) Method for mounting an assembled camshaft and cover module
DE3039946A1 (en) DEVICE FOR PREVENTING THE ROTATION OF PISTONS IN INTERNAL COMBUSTION ENGINES
DE102017128931B3 (en) Rocker arm for a valve train of an internal combustion engine and method for chipless production of a lever body made of sheet steel
DE10142329A1 (en) Valve train for an internal combustion engine
DE3324608A1 (en) FUEL INJECTION NOZZLE
DE3501822A1 (en) RIP-RESISTANT PISTON RING AND METHOD FOR THE PRODUCTION THEREOF
DE3519015C2 (en) Valve tappets for internal combustion engines
EP1260679A2 (en) Tappet in a combustion engine
DE19542697A1 (en) Tappet for valve drive of internal combustion engine
DE19730201A1 (en) Operating lever for valve gear of internal combustion engine
DE4204048C2 (en) Camshaft arrangement with at least one deactivatable cam

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19871207

17Q First examination report despatched

Effective date: 19880601

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

REF Corresponds to:

Ref document number: 3762258

Country of ref document: DE

Date of ref document: 19900517

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

REG Reference to a national code

Ref country code: FR

Ref legal event code: DL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920414

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920624

ITTA It: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 87105773.3

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20010411

Year of fee payment: 15

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020419

EUG Se: european patent has lapsed

Ref document number: 87105773.3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030326

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030408

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040418

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041231

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050418