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US 12,637,946 B2Granted
Method for producing a housing, and shell housing and housing for a rotary piston engine
AssigneeKnapp e-mobility GmbH
InventorsUlrich Knapp, James Hartman, Peter Riegraf
Life of this patent
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Abstract
A method for producing a housing for a rotary piston engine, a shell housing, and a housing for a rotary piston engine, are disclosed. A bushing of hard metal is pressed into a shell housing main body with a trochoidal raceway in such a manner that an external circumferential contour of the bushing bears in a sealing manner on the trochoidal raceway and the trochoidal raceway is cladded via the bushing.
Claims7
A method for producing a housing for a rotary piston engine, comprising:
- providing a shell housing main body with a trochoidal raceway;
- press-fitting a bushing of hard metal into the shell housing main body such that an external circumferential contour of the bushing bears in a sealing manner on the trochoidal raceway and the trochoidal raceway is cladded via the bushing, wherein
- the bushing has a first shape that is oval, and
- upon an application of a force to the bushing when press-fitting, the bushing is elastically deformed into a second, epitrochoidal, shape that is different from the first, oval, shape, such that an external circumferential contour of the bushing bears in a sealing manner on the trochoidal raceway of the rotary piston engine, and the trochoidal raceway is cladded via the bushing.
1 more element
Dependencies are inferred from the claim text.