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:
Feb. 17, 1987
Filed:
Jun. 05, 1986
Hans-Jurgen Klusowski, Hergensweiler, DE;
Helmut Schonich, Kempten, DE;
Wankel GmbH, Berlin, DE;
Abstract
An axial oil seal of a rotary piston internal combustion engine of trochoidal type of construction having a housing that consists of two side plates and a two-lobed or dual-curvature mantle runway with an eccentric shaft passing through the housing and including a triangular piston upon an eccentric of the eccentric shaft such that corners of the piston are continuously in sliding engagement of the sealing parts of the gas seal rotating along the mantle runway and the housing side walls, such oil seal within the axial gas seal being arranged in a groove in the piston, which oil seal consists of at least one sealing ring having a trapezoidal shape in radial cross section and an oil-wiping or scraping edge provided with spring effect of the oil-wiping scraping edge against the housing side wall as well as a seal closing and shutting off a groove path.