EP0664388B1 - Couvre-culbuteurs - Google Patents

Couvre-culbuteurs Download PDF

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Publication number
EP0664388B1
EP0664388B1 EP95100584A EP95100584A EP0664388B1 EP 0664388 B1 EP0664388 B1 EP 0664388B1 EP 95100584 A EP95100584 A EP 95100584A EP 95100584 A EP95100584 A EP 95100584A EP 0664388 B1 EP0664388 B1 EP 0664388B1
Authority
EP
European Patent Office
Prior art keywords
rocker cover
spring body
motor unit
rocker
cover according
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
EP95100584A
Other languages
German (de)
English (en)
Other versions
EP0664388A1 (fr
Inventor
Bernd Dipl.-Ing. Stephan
Bernhard Dipl.-Ing. Feldmann
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.)
SKF Sealing Solutions GmbH
Original Assignee
CR Elastomere 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 CR Elastomere GmbH filed Critical CR Elastomere GmbH
Publication of EP0664388A1 publication Critical patent/EP0664388A1/fr
Application granted granted Critical
Publication of EP0664388B1 publication Critical patent/EP0664388B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00—Arrangements of sealings in combustion engines 

Definitions

  • the invention relates to a housing cover according to the preamble of claim 1.
  • EP 0 268 200 B1 discloses a generic valve cover for the Cylinder head of an internal combustion engine.
  • the lid has holes in its bottom for carrying out threaded bolts designed as stud bolts. In the Holes extend through rubber sleeves. On the one hand, these are used for sealing the stud and on the other hand they dampen the transmission of structure-borne noise.
  • threaded bolts designed as stud bolts. In the Holes extend through rubber sleeves. On the one hand, these are used for sealing the stud and on the other hand they dampen the transmission of structure-borne noise.
  • the rubber sleeves act as rubber springs and ensure that one sufficient sealing is generated.
  • the invention has for its object a generic housing cover to improve with regard to the sealing effect of the seal on the edge of the lid.
  • the spring body When tightening the fastening screws or nuts, a defined one can be used Preload is generated, the spring body is so with the Rubber sleeve connected so that the fastening screw is on the spring body axially supported.
  • the spring body should preferably consist of steel.
  • the spring body as a leaf spring.
  • Other spring bodies which are formed, for example, from spring band steel, could also be used reach.
  • the spring body should be at least in the range Contact points with the cover have a sound-absorbing pad.
  • FIG. 1 shows a housing cover (1) in the form of a valve cover for Internal combustion engines.
  • the housing cover (1) is made of aluminum.
  • For Sealing of the cylinder head (2) is an elastomer seal on the edge of the cover (3) (4) arranged.
  • Rubber sleeves (7) which are attached to the cover (1), are used to seal the stud bolts. are connected.
  • the rubber sleeves (7) can be vulcanized in or pressed in.
  • a spring body (8) made of steel strip is form-fitting with the Rubber sleeve (7) connected.
  • the spring body (8) is supported on the metal surface (9) of the cover (1).
  • the spring body (8) When tightening the nut (10) of the stud (6) the spring body (8) axially pressed and thus generates a biasing force on the Seal (4).
  • the spring body (8) Since the spring body (8) is made of metal, the contact pressure remains largely over a long period of time and over a wide temperature range constant. In contrast to the rubber sleeve (7), no aging occurs. In addition, this spring body (8) can flow / set the seal (4) compensate. A sound attenuation can be found on the underside of the spring body (8) thin sound-absorbing layer (11) can be applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Motor Or Generator Frames (AREA)

Claims (5)

  1. Couvre-culbuteur, en particulier de carter d'huile ou couvercle de soupape, destiné à une fixation démontable étanche aux liquides sur le bloc moteur d'une machine à combustion interne, comportant une garniture d'étanchéité en élastomère fixée au bord du couvre-culbuteur (1) tourné vers le bloc moteur et des trous (5) prévus dans la zone du fond du couvre-culbuteur pour le passage de vis de fixation (6) pour relier le couvre-culbuteur au bloc moteur, les trous (5) étant pourvus de douilles en caoutchouc (7) pour les vis de fixation (6), afin d'obtenir une force de précontrainte suffisante sur la garniture d'étanchéité en élastomère (4), caractérisé en ce que, pour la création de la force de précontrainte, il est prévu respectivement sur une surface de butée axiale d'une vis de fixation (6), un corps élastique métallique (8) qui prend appui sur la surface métallique (9) formant le fond du couvre-culbuteur.
  2. Couvre-culbuteur selon la revendication 1, caractérisé en ce que le corps élastique (8) est relié avec les douilles en caoutchouc (7).
  3. Couvre-culbuteur selon la revendication 1 ou 2, caractérisé en ce que le corps élastique (8) est réalisé en acier.
  4. Couvre-culbuteur selon l'une des revendications là 3, caractérisé en ce que le corps élastique (8) est réalisé sous la forme d'un ressort à lame.
  5. Couvre-culbuteur selon l'une des revendications là 4, caractérisé en ce que le corps élastique (8) comporte au moins dans la zone de ses points de contact avec la surface métallique (9) du couvre-culbuteur (1) un revêtement acoustique (11).
EP95100584A 1994-01-21 1995-01-18 Couvre-culbuteurs Expired - Lifetime EP0664388B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4401486A DE4401486C2 (de) 1994-01-21 1994-01-21 Gehäusedeckel
DE4401486 1994-01-21

Publications (2)

Publication Number Publication Date
EP0664388A1 EP0664388A1 (fr) 1995-07-26
EP0664388B1 true EP0664388B1 (fr) 1998-04-01

Family

ID=6508251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100584A Expired - Lifetime EP0664388B1 (fr) 1994-01-21 1995-01-18 Couvre-culbuteurs

Country Status (3)

Country Link
EP (1) EP0664388B1 (fr)
DE (2) DE4401486C2 (fr)
ES (1) ES2114234T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29612020U1 (de) * 1996-07-10 1996-10-02 Kunststofftechnik F.u.H. Riesselmann GmbH, 01458 Ottendorf-Okrilla Thermoplastisches Kunststoffbauteil, insbesondere Zylinderkopfhaube für Motoren
DE10141570B4 (de) 2001-08-24 2004-09-02 Federal-Mogul Sealing Systems Bretten Gmbh & Co. Kg Gehäusedeckel mit Einrichtung zur Absicherung der Dichtkräfte
DE10141569B4 (de) * 2001-08-24 2004-09-02 Federal-Mogul Sealing Systems Bretten Gmbh & Co. Kg Gehäusedeckel mit akustisch entkoppeltem Anschlag
DE202008004036U1 (de) * 2008-03-20 2009-08-06 Mann+Hummel Gmbh Ölwanne für eine Brennkraftmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115268A (en) * 1962-08-10 1963-12-24 Genova Andrew De Valve tappet cover hold-down
US4456268A (en) * 1982-09-30 1984-06-26 Allis-Chalmers Corp. Fastening means in sealed gasket assembly including shoulder bolt
US4571133A (en) * 1984-07-23 1986-02-18 General Motors Corporation Loading washer assembly
DE3639218A1 (de) * 1986-11-15 1988-05-26 Karl Joh Gummiwarenfab Ventildeckel fuer den zylinderkopf eines verbrennungsmotors
ES2077318T3 (es) * 1991-12-17 1995-11-16 Cr Elastomere Gmbh Tapa para motores de combustion interna.

Also Published As

Publication number Publication date
EP0664388A1 (fr) 1995-07-26
DE59501735D1 (de) 1998-05-07
DE4401486A1 (de) 1995-07-27
DE4401486C2 (de) 1997-09-04
ES2114234T3 (es) 1998-05-16

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