Method for making a cover assembly for use on an internal combustion engine
AssigneeGoetze AG
InventorsWerner Quentin, Bernd Stephan
Life of this patent
Estimating the term…
Abstract
A cover assembly for an internal combustion engine includes sleeves that are connected with a cover member by rubber bodies. The rubber bodies decouple the cover member from structure-borne sound from the engine. Depending on its configuration, the cover assembly may be used as an oil pan or a valve hood. The cover assembly is made from a cover blank which includes the cover member, the sleeves, and webs which connect the sleeves to the cover member. The cover blank is placed in a mold. The webs break and the sleeves are axially displaced with respect to the cover member as the mold is closed. An elastomer material is then injected into the mold to form the rubber bodies.
Claims11
A method for making a cover assembly which is insulated against structure-borne sound from an object on which the cover assembly is mounted by screws, comprising the steps of:
- (a) placing a cover blank between first and second molding tools of a mold, the cover blank including a cover member portion and a plurality of tubular sleeves that are joined to the cover member portion;
- (b) moving the molding tools together to close the mold and detach the sleeves from the cover member portion of the cover blank, the detachment of the sleeves from the cover member portion leaving the cover member portion with openings through which the sleeves extend;
- and
- (c) injecting elastomer material into the closed mold to form elastomer bodies in the openings, the elastomer bodies being attached to the sleeves and being connected in a form-locking manner to the cover member position.
A method for making a cover assembly which is insulated against structure-borne sound from an object on which the cover assembly is mounted by screws, comprising the steps of:
- (a) placing a cover blank between first and second molding tools of a mold, the cover blank including a cover member portion and a plurality of tubular sleeves that are joined to the cover member portion;
- (b) moving the molding tools together to close the mold and detach the sleeves from the cover member portion of the cover blank, the detachment of the sleeves from the cover member portion leaving the cover member portion with openings through which the sleeves extend;
- and
- (c) injecting elastomer material into the closed mold to form elastomer bodies in the openings, the elastomer bodies connecting the sleeves to the cover member portion, and to simultaneously form an elongated seal which is mounted on the cover member and which runs adjacent the elastomer bodies.
Dependencies are inferred from the claim text.