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EP1234106B1 - Roller tappet - Google Patents

Roller tappet Download PDF

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Publication number
EP1234106B1
EP1234106B1 EP00977465A EP00977465A EP1234106B1 EP 1234106 B1 EP1234106 B1 EP 1234106B1 EP 00977465 A EP00977465 A EP 00977465A EP 00977465 A EP00977465 A EP 00977465A EP 1234106 B1 EP1234106 B1 EP 1234106B1
Authority
EP
European Patent Office
Prior art keywords
roller
tappet
roller tappet
main
pin
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
EP00977465A
Other languages
German (de)
French (fr)
Other versions
EP1234106A1 (en
Inventor
Christoph Steinmetz
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.)
Mahle Ventiltrieb GmbH
Original Assignee
Mahle Ventiltrieb 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 Mahle Ventiltrieb GmbH filed Critical Mahle Ventiltrieb GmbH
Publication of EP1234106A1 publication Critical patent/EP1234106A1/en
Application granted granted Critical
Publication of EP1234106B1 publication Critical patent/EP1234106B1/en
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
    • F01L1/12—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
    • F01L2305/00—Valve arrangements comprising rollers
    • F01L2305/02—Mounting of rollers

Definitions

  • the invention relates to a roller tappet for internal combustion engines according to the preamble of claim 1.
  • a Roller tappet is known from JP 7-208121 A.
  • the invention deals with the problem, a weight-saving Storage of the role in the ram main body too to reach.
  • This problem is in generic roller tappets solved by the characterizing features of the claim 1.
  • Advantageous developments are the subject of Dependent claims.
  • a roller tappet 1 has a tappet body with a Shank 5, the roller tappet 1 in a motor housing 4th leads, on.
  • the ram main body consists of fiber-reinforced Plastic.
  • In the plunger base is an axis. 6 stored, the one - dashed lines indicated in the drawing - role 2 carries.
  • At the ram main body are total four elastically deformable or yielding webs 7 integrally formed, in which the axis 6 is clipped.
  • a metallic component 9 through Injection molding with cast in, giving the power of a push rod 3 receives and on the axis 6 on the role of the second transfers.
  • the axis 6 has an angle of about 130 ° Contact with the metallic component 9, which together with the ram main body and the integrally formed on this webs 7 serves as a bearing for the axle.
  • the metallic component 9 has in its lower region a spherical recess for receiving the push rod. 3 and in its upper part two bearing webs for the axle storage on. In Fig. 2 below the webs 7 is the Dividing line between metallic component and plastic existing area of the plunger base recognizable.

Landscapes

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

Description

Die Erfindung betrifft einen Rollenstößel für Verbrennungsmotoren nach dem Oberbegriff des Anspruchs 1. Ein derartiger Rollenstößel ist aus der JP 7-208121 A bekannt.The invention relates to a roller tappet for internal combustion engines according to the preamble of claim 1. Such a Roller tappet is known from JP 7-208121 A.

Bei dem bekannten Rollenstößel erfolgt die Aufhängung der Rolle auf konventionelle Weise.In the known roller tappet, the suspension of the Role in a conventional way.

Die Erfindung beschäftigt sich mit dem Problem, eine gewichtssparende Lagerung der Rolle im Stößelgrundkörper zu erreichen. Dieses Problem wird bei gattungsgemäßen Rollenstößeln gelöst durch die kennzeichnenden Merkmale des Anspruchs 1. Vorteilhafte Weiterbildungen sind Gegenstand der Unteransprüche.The invention deals with the problem, a weight-saving Storage of the role in the ram main body too to reach. This problem is in generic roller tappets solved by the characterizing features of the claim 1. Advantageous developments are the subject of Dependent claims.

Die Erfindung wird im folgenden anhand einer Zeichnung näher erläutert. Es zeigt:

Fig. 1
einen erfindungsgemäßen Rollenstößel im Querschnitt
Fig. 2
eine dreidimensionale Darstellung des Stößelgrundkörpers.
The invention will be explained in more detail below with reference to a drawing. It shows:
Fig. 1
a roller tappet according to the invention in cross section
Fig. 2
a three-dimensional view of the plunger body.

Ein Rollenstößel 1 weist einen Stößelgrundkörper mit einem Schaft 5, der den Rollenstößel 1 in einem Motorgehäuse 4 führt, auf. Der Stößelgrundkörper besteht aus faserverstärktem Kunststoff. Im Stößelgrundkörper ist eine Achse 6 gelagert, die eine - in der Zeichnung gestrichelt angedeutete - Rolle 2 trägt. Am Stößelgrundkörper sind insgesamt vier elastisch verformbare bzw. nachgebende Stege 7 angeformt, in die die Achse 6 eingeclipst ist.A roller tappet 1 has a tappet body with a Shank 5, the roller tappet 1 in a motor housing 4th leads, on. The ram main body consists of fiber-reinforced Plastic. In the plunger base is an axis. 6 stored, the one - dashed lines indicated in the drawing - role 2 carries. At the ram main body are total four elastically deformable or yielding webs 7 integrally formed, in which the axis 6 is clipped.

Im Stößelgrundkörper ist ein metallisches Bauteil 9 durch Spritzgießen mit eingegossen, das die Kraft einer Stößelstange 3 aufnimmt und über die Achse 6 auf die Rolle 2 überträgt. Die Achse 6 hat über einen Winkel von ca. 130° Kontakt mit dem metallischen Bauteil 9, das gemeinsam mit dem Stößelgrundkörper und den an diesem angeformten Stegen 7 als Lager für die Achse dient.In the plunger base body is a metallic component 9 through Injection molding with cast in, giving the power of a push rod 3 receives and on the axis 6 on the role of the second transfers. The axis 6 has an angle of about 130 ° Contact with the metallic component 9, which together with the ram main body and the integrally formed on this webs 7 serves as a bearing for the axle.

Das metallische Bauteil 9 weist in seinem unteren Bereich eine sphärische Ausnehmung zur Aufnahme der Stößelstange 3 und in seinem oberen Bereich zwei Lagerstege für die Achslagerung auf. In Fig. 2 ist unterhalb der Stege 7 die Trennlinie zwischen metallischem Bauteil und dem aus Kunststoff bestehenden Bereich des Stößelgrundkörpers erkennbar.The metallic component 9 has in its lower region a spherical recess for receiving the push rod. 3 and in its upper part two bearing webs for the axle storage on. In Fig. 2 below the webs 7 is the Dividing line between metallic component and plastic existing area of the plunger base recognizable.

Claims (5)

  1. A roller tappet (1) for internal combustion engines having a main tappet body, a roller (2) and a pin (6) bearing the roller (2), in which at least the shank part (5) guiding the roller tappet in the engine housing (4) is made of plastic,
    characterised in that the pin (6) bearing the roller (2) is clipped into elastically deformable stays (7), which are integrally formed with the shank part (5) of the roller tappet.
  2. A roller tappet according to Claim 1,
    characterised in that at least the shank part (5) is made from fibre-reinforced plastic.
  3. A roller tappet according to Claim 1 or 2,
    characterised in that the stays (7) together with the main tappet body form two bearings (8) having an angle of contact of more than 200° for the pin (6), which has a circular cross section.
  4. A roller tappet according to one of the preceding Claims,
    characterised in that the region of the roller tappet absorbing the force of a tappet rod (3) and a part of the bearings (8) are formed by a metal part (9), which is embedded by plastic injection moulding during the manufacture of the main tappet body.
  5. A roller tappet according to Claim 4,
    characterised in that the embedded metal part (9) comprises channel toothing or spline toothing in the integrally cast region in order to prevent a twisting of the metal part in the main tappet body.
EP00977465A 1999-12-03 2000-11-02 Roller tappet Expired - Lifetime EP1234106B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19958314A DE19958314A1 (en) 1999-12-03 1999-12-03 Roller plunger
DE19958314 1999-12-03
PCT/EP2000/010805 WO2001040632A1 (en) 1999-12-03 2000-11-02 Roller tappet

Publications (2)

Publication Number Publication Date
EP1234106A1 EP1234106A1 (en) 2002-08-28
EP1234106B1 true EP1234106B1 (en) 2005-07-13

Family

ID=7931297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00977465A Expired - Lifetime EP1234106B1 (en) 1999-12-03 2000-11-02 Roller tappet

Country Status (6)

Country Link
US (1) US6688269B1 (en)
EP (1) EP1234106B1 (en)
JP (1) JP2003515693A (en)
BR (1) BR0016144A (en)
DE (2) DE19958314A1 (en)
WO (1) WO2001040632A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102006028348B3 (en) * 2006-06-20 2007-10-31 Siemens Ag Rolling bearing device has locking element arranged so that in cavity of cylinder-shaped element it is coupled with positive locking with regard to axial and rotational direction in regard to center axis of cylinder-shaped element
DE102006057246B4 (en) * 2006-12-05 2015-11-26 Schaeffler Technologies AG & Co. KG Mechanical plunger, in particular for a fuel pump of an internal combustion engine, with bent tabs for supporting the bolt of the drive roller
US8640728B2 (en) 2010-05-25 2014-02-04 Sigelock Systems, L.L.C. Fire hydrant control valve
US8365759B2 (en) * 2009-06-10 2013-02-05 Sigelock Systems, L.L.C. Locking fire hydrant
DE102009056306A1 (en) * 2009-11-30 2011-06-01 Schaeffler Technologies Gmbh & Co. Kg roller plunger
DE102010022318B4 (en) * 2010-06-01 2017-09-07 Schaeffler Technologies AG & Co. KG roller plunger
WO2011160092A1 (en) 2010-06-18 2011-12-22 Sigelock Systems. L.L.C. Fire hydrant locking sprinkler cap, hydrant valve seals and lubrication access
DE102012202568B4 (en) * 2012-02-20 2021-12-23 Schaeffler Technologies AG & Co. KG Roller tappet with brackets for a stepped bolt
FR2998629B1 (en) * 2012-11-29 2015-07-03 Skf Ab FOLLOWING ROLL DEVICE OF A CAM
EP2853698B1 (en) 2013-09-27 2016-06-01 Aktiebolaget SKF Cam follower, injection pump and valve actuator comprising such a cam follower and manufacturing method
EP2853696B1 (en) 2013-09-27 2017-03-01 Aktiebolaget SKF Mechanical system, injection pump and valve actuator comprising such a mechanical system and manufacturing method
DE102014203571B4 (en) * 2014-02-27 2015-09-17 Ks Gleitlager Gmbh Slide bearing shell and piston for a radial piston machine
EP3173592B1 (en) * 2015-11-24 2021-01-06 Aktiebolaget SKF Cam follower roller device with lubricant supply holes and lubricating method
EP3176421B1 (en) * 2015-12-03 2018-07-04 Aktiebolaget SKF Cam follower roller device with reinforced tappet body
US9863382B2 (en) 2016-05-25 2018-01-09 Hangzhou Xzb Tech Co., Ltd High pressure oil pump roller tappet
DE102017204920A1 (en) * 2017-03-23 2018-09-27 Aktiebolaget Skf Cam follower roller device
DE102017107100B3 (en) * 2017-04-03 2018-06-14 Schaeffler Technologies AG & Co. KG Lightweight roller tappet
DE112022006078T5 (en) * 2021-12-21 2024-11-14 Eaton Intelligent Power Limited PUMP ACTUATOR WITH IMPROVED FATIGUE LIFE
WO2023154505A1 (en) * 2022-02-14 2023-08-17 Awa Forged Composites, Llc Method of designing and producing fiber-reinforced polymer tappets

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231267A (en) 1978-11-01 1980-11-04 General Motors Corporation Roller hydraulic valve lifter
DE4039256C2 (en) * 1990-12-08 1996-05-09 Schaeffler Waelzlager Kg Device for the simultaneous actuation of two gas exchange valves of an internal combustion engine
DE4117425C1 (en) * 1991-05-28 1992-07-30 Fa. Carl Freudenberg, 6940 Weinheim, De
US5178107A (en) * 1991-11-21 1993-01-12 Morel Jr Edward J Valve lifter
US5127374A (en) * 1991-11-21 1992-07-07 Morel Jr Edward J Valve lifter
US5239951A (en) * 1992-11-12 1993-08-31 Ford Motor Company Valve lifter
JPH07208121A (en) 1994-01-24 1995-08-08 Nippon Seiko Kk Valve lifter device with rolling bearing
DE4421535A1 (en) * 1994-06-20 1995-12-21 Schaeffler Waelzlager Kg Roller tappet for radial piston pump for Diesel engine fuel injection pump
US5931133A (en) * 1998-05-18 1999-08-03 General Motors Corporation Roller cam follower bearing shaft retention
DE19844202A1 (en) * 1998-09-26 2000-03-30 Schaeffler Waelzlager Ohg Internal combustion engine valve tappet comprises inner and outer section coupled and decoupled via spring-powered slide in section mountings to maximize or zero gas valve stroke
DE19852605A1 (en) * 1998-11-14 2000-05-18 Heinz Leiber Control drive for internal combustion engine valve has at least partly flexible valve shaft in direct contact with pivotable, reciprocally movable lever via pivot bearing

Also Published As

Publication number Publication date
DE50010717D1 (en) 2005-08-18
DE19958314A1 (en) 2001-06-07
EP1234106A1 (en) 2002-08-28
US6688269B1 (en) 2004-02-10
WO2001040632A1 (en) 2001-06-07
BR0016144A (en) 2002-08-06
JP2003515693A (en) 2003-05-07

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