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:
Nov. 25, 1986
Filed:
Sep. 05, 1985
Applicant:
Inventor:
Peter Wunsche, Graz, AT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
1231 / ; 1231 / ; 1231 / ; 418170 ; 184-628 ; 184 26 ;
Abstract
A lubricating oil pump for a four-stroke internal combustion engine inclu a pump body; an annular gearwheel rotatably mounted around the outer perihery of the pump body, the annular gearwheel including projections on its outer surface to function as cams for valve control and including teeth on its inner surface; and a driving pinion mounted within the annular gearwheel and attachable to the crankshaft of the engine, the driving pinion including external teeth in meshing engagement with the internal teeth of the annular gearwheel such that the annular gearwheel rotates at half the speed of the driving pinion.