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:
Oct. 10, 1995
Filed:
May. 19, 1994
Russell J VanRens, Milwaukee, WI (US);
William B Rush, Antioch, IL (US);
Outboard Marine Corporation, Waukegan, IL (US);
Abstract
Disclosed herein is a four-stroke internal combustion engine including a cylinder, a device for feeding fuel to the cylinder, a sealed crankcase chamber associated with the cylinder, a piston reciprocally movable in the cylinder and relative to the crankcase chamber to effect alternation of the pressure therein in response to piston reciprocation, an oil sump adapted to contain lubricating oil, a conduit system for recirculating oil from the sump to the crankcase chamber and from the crankcase chamber to the sump in response to alternation of the pressure in said crankcase chamber, an oil pump communicable with the oil sump and with the fuel feeding means, and a conduit operably connected to the oil pump and to the crankcase chamber so as to effect delivery of oil from the sump to the fuel feeding device in response to alternation of the pressure in the crankcase chamber.