Patent · US Expired

Rotary piston four-stroke internal combustion engine

US3939655A · kind A · utility

2Cited by

1References

9Claims

0Family size

Assignees

Audi NSU Auto Union Aktiengesellschaft · DE
Wankel GmbH · DE

Inventors

Max Ruf · Obereisesheim, DE
Johannes Steinwart · Löwenstein, DE

Key dates

Filing date	Oct 17, 1974
Grant date	Feb 24, 1976
Priority date	—
Expiry date	Oct 17, 1994

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S60/901
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A rotary piston four-stroke internal combustion engine of trochoid type includes a housing composed of a shell and two parallel end parts together bounding an inner chamber in which a polygonal position is rotatably mounted. Inlet and outlet passages are provided in the housing for supply of air or fresh gas and for ejection of burned gases, respectively. The inlet passage is connected with an intake duct and the outlet passage with an exhaust gas reactor. A line containing a valve leads from the region of the inner chamber in which compression takes place to the exhaust gas reactor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.