Title: Housing for circular piston combustion engine of trochoid type and method of producing the same

Abstract: A housing for circular piston combustion engines of trochoid type is produced with at least one annular shell having an inner peripheral wall in the shape of a multi-arcuate trochoid, an outer peripheral wall, and end walls parallel to each other and adjoined to the ends of the shell, end pieces parallel to each other having end walls parallel to each other and an inner and an outer peripheral wall. In the case of a multiple engine at least one end piece constitutes a middle piece between neighboring shells.

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Inventors: Wieland, Werner (Obereisesheim, DT)

Application Number: 427417
Filing Date: 1973-12-21
Publication_date: 1976-03-09
Assignee: Audi NSU Auto Union Aktiengesellschaft (Neckarsulm, DT); Wankel GmbH (Lindau, DT)
Primary Class(es): 418/60 418/61.2, 418/83, 418/178
Other Classes:
US Patent Ref:

3102516	Sep, 1963	Gist et al.	418/83.
3134537	May, 1964	Bentele et al.	418/83.
3280802	Oct, 1966	Froede	123/8.
3286700	Nov, 1966	Froede	418/83.
3289647	Dec, 1966	Turner	418/83.
3292601	Dec, 1966	Bensinger et al.	418/83.
3715178	Feb, 1973	Jones	418/83.
3829260	Aug, 1974	Shimoda	418/178.

Other Refs:
Primary Examiner: Husar, C. J.
Assistant Examiner: Smith, Leonard
Attorney: Kane, Dalsimer, Kane, Sulliven and Kurucz