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. 27, 1988
Filed:
Jul. 10, 1987
Don F Kueny, Waukegan, IL (US);
Outboard Marine Corporation, Waukegan, IL (US);
Abstract
An internal combustion engine comprising a cylinder, a piston slidably movable in the cylinder along an axis and relative to a bottom dead center position, a crankshaft including a crankpin having a longitudinal axis and a cylindrical outer surface, a connecting rod including a first end pivotally connected to the piston, and a second end having therein a cylindrical bore rotatably receiving the crankpin, the bore having a cylindrical inner surface radially spaced from the outer surface of the crankpin, one of the inner surface of the connecting rod and the outer surface of the crankpin including a relieved area intersected by a plane having therein the crankpin axis and the piston axis when the piston is in the bottom dead center position, and a plurality of roller bearings located between the outer surface and the inner surface.