EP0541967B1 - Couvercle de bâti - Google Patents

Couvercle de bâti Download PDF

Info

Publication number
EP0541967B1
EP0541967B1 EP92117376A EP92117376A EP0541967B1 EP 0541967 B1 EP0541967 B1 EP 0541967B1 EP 92117376 A EP92117376 A EP 92117376A EP 92117376 A EP92117376 A EP 92117376A EP 0541967 B1 EP0541967 B1 EP 0541967B1
Authority
EP
European Patent Office
Prior art keywords
sealing
cover
casing
casing cover
shaft
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
EP92117376A
Other languages
German (de)
English (en)
Other versions
EP0541967A1 (fr
Inventor
Rainer Dipl.-Ing. Ecker
Bernd Dipl.-Ing. Stephan
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.)
GOETZE ELASTOMERE 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 EP0541967A1 publication Critical patent/EP0541967A1/fr
Application granted granted Critical
Publication of EP0541967B1 publication Critical patent/EP0541967B1/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
    • F02F11/00—Arrangements of sealings in combustion engines 
    • F02F11/007—Arrangements of sealings in combustion engines  involving rotary applications

Definitions

  • the invention relates to a housing cover for sealing a crankshaft housing of an internal combustion engine with an oil pan which can be flanged from below with the interposition of a soft material seal, the cover being fastened in alignment with the longitudinal axis of the shaft on the outer wall of the housing and a lip sealing ring integrated in the cover sealing the shaft and arranged in the cover flange Sealing strips are in fluid-tight static engagement with both the shaft housing and the oil pan (see, inter alia, US Pat. No. 4,265,495).
  • DE-OS 39 42 448 discloses a housing cover for sealing crankshaft housings with an oil pan that can be flanged from below.
  • the cover has a separate component which can be screwed onto both the oil pan and the crankshaft housing.
  • the component is flexibly connected to the cover by the elastic rubber layer.
  • the housing cover can be attached to the crankshaft housing in alignment with the shaft axis.
  • the separate component can be screwed to the oil pan.
  • An oversize or undersize is compensated for by the elastic layer.
  • the separate component must lie with its lower edge on one level with the lower edge of the crankcase.
  • the oil pan is screwed to the separate component.
  • the intermediate flat gasket cannot follow the offset in the event of an offset between the lower edge of the housing cover and the lower edge of the crankshaft housing, so that there is a leak in this area.
  • the invention has for its object to improve a generic housing cover to the extent that there is a tight connection to the oil pan even in extreme tolerance.
  • the sealing strip corresponding to the flat seal of the oil pan has a radially extending surface that extends obliquely to the sealing plane. In this way it is possible to create a seamless transition when offset occurs.
  • the flat gasket can follow the sloping surface of the sealing strip.
  • the sealing strip has a bevel, viewed in cross section, at an acute angle to the sealing plane.
  • the bevel should preferably be designed as a double-sided ramp, the length of the ramp corresponding approximately to the width of the flat gasket, and the acute angle lying between 5 and 20 degrees.
  • FIG. 3 shows an installation situation of a previous cover as an enlargement of the cutout, which corresponds approximately to the installation situation of the cover according to US Pat. No. 4,265,495.
  • the flat gasket (3) cannot fill this offset, so that a cavity (10) is created in which the medium to be sealed can flow.
  • the intersection point X between the sealing strip (7 ') and the lower edge (9) of the crankshaft housing (2) migrates along the boundary edge of the sealing strip (7') depending on the manufacturing tolerance. As long as the lower edge (9) lies in one plane with the lower edge (8), no oil flows into the cavity (10) and the cover is tight.
  • the surface of the sealing strip (7) is designed as a bevel in the form of a double-sided ramp (11).
  • the acute angle alpha between the sealing plane and the surface of the ramp (11) should be chosen between 5 and 20 degrees, depending on Flat gasket material so that the flat gasket can follow the shape of the surface without creating a cavity.
  • the offset between the lower edge (8) and lower edge (9) can not create a leak
  • the intersection X1 between the sealing strip (7) and lower edge (9) moves along the ramp (11) depending on the manufacturing tolerance, no matter where the Ramp (11) is the intersection point X, there is always tightness.
  • the bevel not as a straight line but as an arc, for example according to a sine function, in order to obtain a softer transition to the flat gasket.

Claims (5)

  1. Couvercle de fermeture (1) de boîtier pour l'étanchéité d'un boîtier (2) d'arbre de vilebrequin d'un moteur à combustion interne présentant un carter d'huile pouvant être bridé par dessous avec insertion d'une garniture d'étanchéité plate et molle (3), le couvercle (1) à l'état monté étant fixé à la paroi extérieure du boîtier (2) de manière alignée á l'axe longitudinal de l'arbre, où un anneau d'étanchéité à lèvre (5) intégré dans le couvercle étanchéifie l'arbre et où des bandes d'étanchéité (6, 7) disposées dans la bride de couvercle se trouvent en contact statique étanche aux fluides aussi bien avec le boîtier d'arbre (2) qu'avec le carter d'huile (4), caractérisé en ce que la bande d'étanchéité (7) correspondant à la garniture d'étanchéité plate (3) du carter d'huile (4) présente une surface s'étendant radialement, de manière inclinée par rapport au plan d'étanchéité.
  2. Couvercle de fermeture de boîtier selon la revendication 1, caractérisé en ce que la bande d'étanchéité (7) présente, vue de devant, un chanfrein (11) faisant un angle aigu α par rapport au plan d'étanchéité.
  3. Couvercle de fermeture de boîtier selon les revendications 1 et 2, caractérisé en ce que le chanfrein (11) est réalisé sous la forme d'une rampe à deux côtés.
  4. Couvercle de fermeture de boîtier selon la revendication 3, caractérisé en ce que la longueur de la rampe (11) correspond environ à la largeur de la garniture d'étanchéité plate (3).
  5. Couvercle de fermeture de boîtier selon les revendications 2 à 4, caractérisé en ce que l'angle α se situe entre 5 et 20 degrés.
EP92117376A 1991-11-09 1992-10-12 Couvercle de bâti Expired - Lifetime EP0541967B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4136890 1991-11-09
DE4136890A DE4136890C2 (de) 1991-11-09 1991-11-09 Gehäuseverschlußdeckel

Publications (2)

Publication Number Publication Date
EP0541967A1 EP0541967A1 (fr) 1993-05-19
EP0541967B1 true EP0541967B1 (fr) 1995-09-13

Family

ID=6444420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117376A Expired - Lifetime EP0541967B1 (fr) 1991-11-09 1992-10-12 Couvercle de bâti

Country Status (3)

Country Link
EP (1) EP0541967B1 (fr)
DE (2) DE4136890C2 (fr)
ES (1) ES2077322T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8899463B2 (en) 2010-09-30 2014-12-02 Ethicon Endo-Surgery, Inc. Surgical staple cartridges supporting non-linearly arranged staples and surgical stapling instruments with common staple-forming pockets
US9700310B2 (en) 2013-08-23 2017-07-11 Ethicon Llc Firing member retraction devices for powered surgical instruments

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722629B4 (de) 1997-05-30 2006-07-27 Dolmar Gmbh Dichtungsanordnung
CN103670783B (zh) * 2012-09-17 2016-11-16 广西玉柴机器股份有限公司 柴油机前油封座
DE102017006355A1 (de) * 2017-06-23 2018-12-27 Mtu Friedrichshafen Gmbh Lagerdeckel
DE102020109576B3 (de) 2020-04-06 2021-06-24 Grob-Werke Gmbh & Co. Kg Verfahren und Vorrichtung zum Abdichten eines Prüfraums in einem Werkstück

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT207625B (de) * 1958-02-19 1960-02-10 Jenbacher Werke Ag Einrichtung zur Abdichtung für Zylinderköpfe bei Brennkraftmaschinen
US4265495A (en) * 1979-08-20 1981-05-05 Allis-Chalmers Corporation Engine block and crankshaft bearing seal
DE3634735A1 (de) * 1986-10-11 1988-04-21 Goetze Ag Verschlussdeckel, insbesondere fuer kurbelwellen- und getriebegehaeuse bei kraftfahrzeugen
DE3942448A1 (de) * 1989-08-01 1991-02-07 Daimler Benz Ag Gehaeusedeckel
DE4016020C2 (de) * 1990-05-18 1994-06-16 Goetze Ag Gehäuseverschlußdeckel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8899463B2 (en) 2010-09-30 2014-12-02 Ethicon Endo-Surgery, Inc. Surgical staple cartridges supporting non-linearly arranged staples and surgical stapling instruments with common staple-forming pockets
US9033203B2 (en) 2010-09-30 2015-05-19 Ethicon Endo-Surgery, Inc. Fastening instrument for deploying a fastener system comprising a retention matrix
US9700310B2 (en) 2013-08-23 2017-07-11 Ethicon Llc Firing member retraction devices for powered surgical instruments

Also Published As

Publication number Publication date
EP0541967A1 (fr) 1993-05-19
DE59203669D1 (de) 1995-10-19
ES2077322T3 (es) 1995-11-16
DE4136890A1 (de) 1993-05-19
DE4136890C2 (de) 1995-08-03

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