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US 8,261,719 B2Granted
Fuel pump, in particular for a fuel system of a piston engine
AssigneeRobert Bosch GmbH
InventorsChristian Langenbach, Manfred Fink, Armin Merz, Josef Guentert, Jan Grebe, Robert Reitsam
Life of this patent
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Abstract
A fuel pump according to the invention includes a housing and a part, which is a moving part during operation and which bears on a housing region at least indirectly. It is proposed that the fuel pump includes a coating which is applied to the housing region on a side of the housing region which faces towards the moving part, and that the coating is composed of a plastic.
Claims36
A fuel pump comprising:
- a housing having a first housing member mounted to a second housing member, said first and second housing members defining an interior region having at least one interior surface, said first and second housing members further defining abutting surfaces therebetween when mounted together;
- at least one part which is a moving part when in operation and which at least indirectly contacts said at least one interior surface;
- and
- a single-layer friction-reducing coating applied to said at least one interior surface and to said abutting surface of said first housing member,
- wherein the coating includes a plastic that extends between said at least one part and said at least one interior surface and between said abutting surfaces.
2 more elements
A fuel pump comprising
- a housing having a first housing member, a second housing member, and a comparatively thin support plate mounted between said first and second housing members, said support plate and said first housing member defining an interior region, said support plate defining at least one interior surface, said support plate and second housing members defining abutting surfaces therebetween when mounted together;
- at least one part which is a moving part when in operation and which at least indirectly contacts said at least one interior surface;
- and
- a single-layer friction-reducing coating applied to said at least one interior surface and to said abutting surface of said support plate,
- wherein the coating includes a plastic that extends between said at least one part and said at least one interior surface and between said abutting surfaces.
2 more elements
Dependencies are inferred from the claim text.