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. 01, 1991
Filed:
Jul. 30, 1990
Terry Buelna, Oceanside, CA (US);
Other;
Abstract
The invention herein is a rotary valve apparatus for a cylinder of an internal combustion engine, containing a valve housing having an internal axial bore and an opening over the combustion chamber, a circumferential bearing positioned within the bore, an axially aligned cylindrical valve body journaled in the bearings, at least one axially aligned hollow chamber in the valve body, a drive for rotating the body in correspondence to the operating strokes of the piston in the cylinder, port seals to prevent gas flow around the outer surface of the valve body, and ring seals extending around the inside of the valve housing and sealing with the outer surface of the valve body. A lip seal may also be used on the intake side of the valve. The valve is useful with both two-cycle and four-cycle engines.