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:
Dec. 18, 1990
Filed:
Oct. 02, 1989
Peter G Kronich, Sheboygan, WI (US);
Tecumseh Products Company, Tecumseh, MI (US);
Abstract
An air-cooled internal combustion engine, a crankshaft and a camshaft rotatably journalled in the crankcase parallel to one another, and a cast intake valve chamber and cast exhaust valve chamber each cast integrally with the cylinder and communicating with the combustion chamber via a respective intake valve port and exhaust valve port. Intake and exhaust valves are disposed for reciprocation in a direction lying perpendicular to the camshaft and simultaneously in a direction lying at an acute angle to a plane passing through the longitudinal axis of the cylinder and parallel to the axis of the camshaft. An intake cross-over manifold is cast integrally with the cylinder and is delimited by interior walls which are substantially straight in longitudinal direction from a fuel/air intake port to a point of intersection with the intake valve chamber.