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:
Aug. 24, 1976
Filed:
Feb. 19, 1975
Thomas M Dennison, Peoria, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
An improved means for lubricating the compression seals of rotary engines. The system is provided in a typical rotary engine having a housing with a main shaft extending through the housing and a rotor within the housing and journalled on the main shaft. The rotor includes a bore receiving the shaft. Conventional means are provided for supplying lubricant to the interface of the main shaft and the rotor at the bore. The rotor carries at least one compression seal and is provided with a lubrication conduit for the seal extending from the bore to a surface of the rotor adjacent the seal. During operation of the engine, relative rotation between the rotor and the shaft takes place and generates a pumping action at the interface to drive small amounts of lubricant through the lubrication conduit to the rotor surface to lubricate the seal.