The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 1991
Filed:
May. 18, 1990
Dankwart Eiermann, Weissensberg, DE;
Wankel GmbH, Berlin, DE;
Abstract
A rotary piston internal combustion engine of trochoidal-type of construction with a slidably journalled piston controlled by a synchronous transmission gear drive unit, with which the synchronous transmission gear drive unit is covered coinciding with an insert part threaded with respect to the remaining machine parts adjacent to the eccentric. The insert part has a hollow cylinder covering the hollow gear of the synchronous transmission gear drive unit eccentric to the eccentric shaft, which hollow cylinder is sealed-off with a sealing ring relative to one shoulder of the piston, as well as a further hollow cylinder coaxial to the eccentric shaft surrounding the holding part for the pinion with a gap or space therebetween, which further hollow cylinder projects into a shaft bore in the side part and is sealed-off relative thereto by a sealing ring. Upon another bearing side there is provided an annular chamber sealed-off relative to the remaining machining spaces or chambers and from which annular chamber the oil discharging from the bearing is conveyed through the cooling chambers of the piston to the synchronous transmission gear drive unit. The oil is discharged through a gap space in a discharge passage or channel in the sidewall formed by the coaxial hollow cylinder.