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DE19548808A1 - Transmission element, in particular roller tappet for actuating a valve, in particular for an internal combustion engine - Google Patents

Transmission element, in particular roller tappet for actuating a valve, in particular for an internal combustion engine

Info

Publication number
DE19548808A1
DE19548808A1 DE19548808A DE19548808A DE19548808A1 DE 19548808 A1 DE19548808 A1 DE 19548808A1 DE 19548808 A DE19548808 A DE 19548808A DE 19548808 A DE19548808 A DE 19548808A DE 19548808 A1 DE19548808 A1 DE 19548808A1
Authority
DE
Germany
Prior art keywords
transmission element
valve
combustion engine
roller tappet
actuating
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.)
Withdrawn
Application number
DE19548808A
Other languages
German (de)
Inventor
Rainer Barth
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.)
MWP MAHLE J WIZEMANN PLEUCO GM
Original Assignee
MWP MAHLE J WIZEMANN PLEUCO GM
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 MWP MAHLE J WIZEMANN PLEUCO GM filed Critical MWP MAHLE J WIZEMANN PLEUCO GM
Priority to DE19548808A priority Critical patent/DE19548808A1/en
Priority to PCT/DE1996/002069 priority patent/WO1997024513A1/en
Publication of DE19548808A1 publication Critical patent/DE19548808A1/en
Withdrawn legal-status Critical Current

Links

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
    • F01L2307/00—Preventing the rotation of tappets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The invention concerns a force-transmission element, in particular a roller tappet (1) which actuates a valve in an internal-combustion engine. In order to prevent rotation of the tappet, a securing device is fitted which engages both with the force-transmission element and in a suitably shaped groove in the engine casing. This is done with a simple design solution by using as the securing device a Woodruff key (7), conforming with DIN 6888, which is fitted in a suitably shaped recess (6) in the bottom (3) of the tappet (1).

Description

Die Erfindung betrifft ein Übertragungselement, insbesonde­ re einen Rollenstößel, zur Betätigung eines Ventils für insbesondere einen Verbrennungsmotor nach dem Oberbegriff des Anspruchs 1.The invention relates to a transmission element, in particular re a roller tappet, for actuating a valve for in particular an internal combustion engine according to the preamble of claim 1.

Aus der Praxis ist ein derartiger Rollenstößel bekannt, bei dem als Sicherung gegen Verdrehen ein T-förmiges Siche­ rungsmittel einerseits mit einem zylindrischen stiftförmi­ gen Fußteil in den Rollenstößel eingreift und andererseits mit seinem dazu senkrecht angeformten Kopfteil in einer entsprechenden Nut im Motorgehäuse geführt ist.Such a roller tappet is known from practice, at a T-shaped siche to prevent twisting on the one hand with a cylindrical pen-shaped engages foot part in the roller tappet and on the other hand with its vertically molded headboard in one corresponding groove in the motor housing.

Nachteilig an dieser Ausführung ist einerseits die aufwen­ dige Herstellung eines derartigen Spezialteiles und ande­ rerseits die Bruchgefahr, die dieses T-förmige Teil insbe­ sondere im Übergangsbereich zwischen Kopf- und Fußteil auf­ weist, wodurch Schäden für den gesamten Ventiltrieb möglich sind.A disadvantage of this design is the expense production of such a special part and others on the other hand, the risk of breakage, which this T-shaped part in particular especially in the transition area between the head and foot sections points, which can damage the entire valve train are.

Vorliegende Erfindung beschäftigt sich daher mit dem Pro­ blem, auf konstruktiv einfache Weise ein Sicherungsmittel zu finden, das mit geringem Herstellungsaufwand eine siche­ re Funktion bezüglich der Anforderungen an das Sicherungs­ mittel gewährleistet. The present invention is therefore concerned with the pro a safety device in a structurally simple manner to find a safe with little manufacturing effort re function regarding the requirements for the fuse medium guaranteed.  

Gelöst wird dieses Problem mit einem Sicherungsmittel mit den Merkmalen nach dem Kennzeichen des Anspruchs 1.This problem is solved with a safety device the features according to the characterizing part of claim 1.

Vorteilhafte Ausgestaltungen nach der Erfindung sind in den Unteransprüchen enthalten.Advantageous embodiments according to the invention are in the Subclaims included.

Die Lösung des Problems beruht insbesondere auf der Überle­ gung, die Bruchgefahr durch erhöhte Festigkeit und Verrin­ gerung der Kerbwirkung zu vermeiden.The solution to the problem is based in particular on the Überle tion, the risk of breakage due to increased strength and reduction to avoid the notch effect.

Die Erfindung ist nachstehend anhand eines bevorzugten, in der Zeichnung dargestellten Ausführungsbeispiels näher er­ läutert.The invention is based on a preferred, in the drawing shown embodiment, he closer purifies.

Es zeigtIt shows

Fig. 1 einen erfindungsgemäßen Rollenstößel in Seitenansicht im Schnitt und Fig. 1 a roller tappet according to the invention in side view in section and

Fig. 2 eine Draufsicht der Fig. 1. FIG. 2 is a top view of FIG. 1.

Ein Rollenstößel 1 zur Betätigung eines Ventils eines Ver­ brennungsmotors besteht aus einem zylindrischen Führungs­ körper 2 und einem Körperboden 3. Im Körperboden 3 ist in einer entsprechenden Aufnahme eine über einen Bolzen 4 ge­ sicherte Rolle 5 gelagert, die zur Hubbewegung des Rollen­ stößels 1 mit beispielsweise einem Nocken einer Nockenwelle in Wirkverbindung steht.A roller tappet 1 for actuating a valve of an internal combustion engine consists of a cylindrical guide body 2 and a body bottom 3 . In the body bottom 3 in a corresponding receptacle, a ge secured via a pin 4 roller 5 is mounted, which is in operative connection with the lifting movement of the roller plunger 1 with, for example, a cam of a camshaft.

Um ein Verdrehen (Rotieren) des Rollenstößels 1 zu verhin­ dern, ist in einer entsprechenden Aussparung 6 im Körperbo­ den 3 des Rollenstößels 1 als Sicherungsmittel eine Schei­ benfeder 7 nach DIN 6888 vorgesehen, die mit ihrem überste­ henden Teil 8 in eine entsprechende Nut des Motorgehäuses (nicht gezeichnet) eingreift.To countries to verhin twisting (rotating) the roller tappet 1, is provided in a corresponding recess 6 in Körperbo to 3 of the roller tappet 1 as securing means, a ticket benfeder 7 according to DIN 6888, the appropriate into one with their überste Henden part 8 groove of the motor housing (not shown) intervenes.

Um eine auch relativ geringe Bewegung der Scheibenfeder 7 zu vermeiden, können beispielsweise die Maße der Aussparung 6 und die der entsprechenden Nut in dem Motorgehäuse so ge­ wählt werden, daß die Scheibenfeder 7 im eingebauten Zu­ stand unter Vorspannung steht.In order to avoid a relatively small movement of the disc spring 7 , for example, the dimensions of the recess 6 and that of the corresponding groove in the motor housing can be selected so that the disc spring 7 in the built-in state is under tension.

Andererseits kann die Scheibenfeder 7 diesbezüglich auch durch Kleben oder Widerstandsschweißen in ihrer Aufnahme 6 gesichert werden.On the other hand, the disc spring 7 can also be secured in its receptacle 6 in this regard by gluing or resistance welding.

Mit einer derartigen Ausführung wird auf konstruktiv einfa­ che Weise bei einem Übertragungselement (Rollenstößel) zur Betätigung eines Ventils eines Verbrennungsmotors eine Si­ cherung gegen Verdrehen erreicht, die mit einfachen Mitteln ohne großen Aufwand mit verbesserten Funktionseigenschaften montiert werden kann.With such an execution is constructively simple che way with a transmission element (roller tappet) Actuation of a valve of an internal combustion engine an Si Protection against twisting achieved with simple means with little effort with improved functional properties can be assembled.

Claims (4)

1. Übertragungselement, insbesondere Rollenstößel, zur Be­ tätigung eines Ventils für insbesondere einen Verbren­ nungsmotor mit einem Sicherungsmittel gegen Verdrehen, wobei das Sicherungsmittel einerseits in das Übertra­ gungselement und andererseits in eine entsprechende Nut im Motorgehäuse eingreift, dadurch gekennzeichnet, daß als Sicherungsmittel eine Scheibenfeder (7) verwen­ det wird.1. transmission element, in particular roller tappet, for actuating a valve for in particular a combustion engine with a securing means against rotation, the securing means engaging in the transmission element on the one hand and in the other hand in a corresponding groove in the motor housing, characterized in that a disk spring as securing means ( 7 ) is used. 2. Übertragungselement nach Anspruch 1, dadurch gekennzeichnet, daß eine Scheibenfeder (7) nach DIN 6888 verwendet wird.2. Transmission element according to claim 1, characterized in that a disc spring ( 7 ) according to DIN 6888 is used. 3. Übertragungselement nach einem der vorhergehenden An­ sprüche, dadurch gekennzeichnet, daß die Scheibenfeder (7) in eingebautem Zustand unter Vorspannung steht.3. Transmission element according to one of the preceding claims, characterized in that the disc spring ( 7 ) is under tension in the installed state. 4. Übertragungselement nach einem der vorhergehenden An­ sprüche, dadurch gekennzeichnet, daß die Scheibenfeder (7) fest, z. B. durch Kleben oder Widerstandsschweißen, in ihrer Aufnahme (6) im Übertra­ gungselement (1) gelagert ist.4. Transmission element according to one of the preceding claims, characterized in that the disc spring ( 7 ) fixed, for. B. by gluing or resistance welding, is mounted in its receptacle ( 6 ) in the transmission element ( 1 ).
DE19548808A 1995-12-27 1995-12-27 Transmission element, in particular roller tappet for actuating a valve, in particular for an internal combustion engine Withdrawn DE19548808A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19548808A DE19548808A1 (en) 1995-12-27 1995-12-27 Transmission element, in particular roller tappet for actuating a valve, in particular for an internal combustion engine
PCT/DE1996/002069 WO1997024513A1 (en) 1995-12-27 1996-10-28 Force-transmission element, in particular a roller tappet designed to actuate a valve in an internal-combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19548808A DE19548808A1 (en) 1995-12-27 1995-12-27 Transmission element, in particular roller tappet for actuating a valve, in particular for an internal combustion engine

Publications (1)

Publication Number Publication Date
DE19548808A1 true DE19548808A1 (en) 1997-07-03

Family

ID=7781471

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19548808A Withdrawn DE19548808A1 (en) 1995-12-27 1995-12-27 Transmission element, in particular roller tappet for actuating a valve, in particular for an internal combustion engine

Country Status (2)

Country Link
DE (1) DE19548808A1 (en)
WO (1) WO1997024513A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19829269A1 (en) * 1998-07-01 2000-01-05 Volkswagen Ag Cam follower and method for assembling a cam follower
WO2008074651A1 (en) * 2006-12-18 2008-06-26 Mahle International Gmbh Rotationally locked tappet of a valve timing mechanism
WO2012082768A1 (en) * 2010-12-13 2012-06-21 Eaton Corporation Pump actuator anti-rotation device
EP2853698A1 (en) * 2013-09-27 2015-04-01 Aktiebolaget SKF Cam follower, injection pump and valve actuator comprising such a cam follower and manufacturing method
US20150143947A1 (en) * 2013-11-26 2015-05-28 Aktiebolaget Skf Cam follower roller device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307852A1 (en) * 1983-03-05 1984-09-06 Martin 6700 Ludwigshafen Huber Flexible valve timing for four-stroke engines to achieve timing appropriate to the engine speed. Timing appropriate to the engine speed is understood to mean that the inlet and exhaust timing and the overlap of the inlet and exhaust timing is ideal as regards optimum charging and combustion space scavenging for all engine speed ranges
DE3614281A1 (en) * 1986-04-26 1987-10-29 Kloeckner Humboldt Deutz Ag ADJUSTMENT DEVICE FOR STARTING DRAWING AND TIMING TIMES OF AN INTERNAL COMBUSTION ENGINE
US4739675A (en) * 1980-11-14 1988-04-26 Connell Calvin C Cylindrical tappet
US5263386A (en) * 1992-11-24 1993-11-23 General Motors Corporation Roller cam follower guide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622245A1 (en) * 1986-07-02 1988-01-14 Ford Werke Ag ROLLER TOWEL ARRANGEMENT WITH TORQUE PROTECTION, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES
US5159906A (en) * 1991-05-03 1992-11-03 Ford Motor Company Adjustable valve system for an internal combustion engine
US5361733A (en) * 1993-01-28 1994-11-08 General Motors Corporation Compact valve lifters
DE9306685U1 (en) * 1993-05-04 1993-06-09 INA Wälzlager Schaeffler KG, 8522 Herzogenaurach Pestle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739675A (en) * 1980-11-14 1988-04-26 Connell Calvin C Cylindrical tappet
DE3307852A1 (en) * 1983-03-05 1984-09-06 Martin 6700 Ludwigshafen Huber Flexible valve timing for four-stroke engines to achieve timing appropriate to the engine speed. Timing appropriate to the engine speed is understood to mean that the inlet and exhaust timing and the overlap of the inlet and exhaust timing is ideal as regards optimum charging and combustion space scavenging for all engine speed ranges
DE3614281A1 (en) * 1986-04-26 1987-10-29 Kloeckner Humboldt Deutz Ag ADJUSTMENT DEVICE FOR STARTING DRAWING AND TIMING TIMES OF AN INTERNAL COMBUSTION ENGINE
US5263386A (en) * 1992-11-24 1993-11-23 General Motors Corporation Roller cam follower guide

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 2-199351 A.,In: Patents Abstracts of Japan, M-1039,Oct. 24,1990,Vol.14,No.488 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19829269A1 (en) * 1998-07-01 2000-01-05 Volkswagen Ag Cam follower and method for assembling a cam follower
WO2008074651A1 (en) * 2006-12-18 2008-06-26 Mahle International Gmbh Rotationally locked tappet of a valve timing mechanism
US8201532B2 (en) 2006-12-18 2012-06-19 Mahle International Gmbh Rotationally locked tappet of a valve timing mechanism
CN101605966B (en) * 2006-12-18 2012-10-10 马勒国际有限公司 Rotationally locked tappet of a valve timing mechanism
WO2012082768A1 (en) * 2010-12-13 2012-06-21 Eaton Corporation Pump actuator anti-rotation device
US9243521B2 (en) 2010-12-13 2016-01-26 Eaton Corporation Pump actuator anti-rotation device
EP2853698A1 (en) * 2013-09-27 2015-04-01 Aktiebolaget SKF Cam follower, injection pump and valve actuator comprising such a cam follower and manufacturing method
US9541184B2 (en) 2013-09-27 2017-01-10 Aktiebolaget Skf Mechanical system, injection pump and valve actuator comprising such a mechanical system and manufacturing method
US20150143947A1 (en) * 2013-11-26 2015-05-28 Aktiebolaget Skf Cam follower roller device
US9777820B2 (en) * 2013-11-26 2017-10-03 Aktiebolaget Skf Cam follower roller device

Also Published As

Publication number Publication date
WO1997024513A1 (en) 1997-07-10

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee