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. 22, 1987
Filed:
Apr. 29, 1986
Shuji Masuda, Hiroshima, JP;
Hiroyuki Oda, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
An internal combustion engine with single overhead camshaft which comprises a cylinder block having at least one cylinder bore and accommodating therein a piston, and a cylinder head having a bottom wall flattened at a surface area confronting a combustion chamber, and firmly mounted on the cylinder block. The bottom wall has a pair of intake ports and a pair of exhaust ports which are selectively closed and opened by separate intake valves, one for each intake port, and separate exhaust valves, one for each exhaust port. The intake and exhaust valves are supported by the cylinder head for movement in a direction generally perpendicular to the planar surface of the bottom wall. A single overhead camshaft extends above and between the intake valves and the exhaust valves transversely of the longitudinal axis of the cylinder bore, and has first and second cam means. The piston has a flat top end face confronting, and generally in parallel relationship with, the planar surface of the bottom wall of the cylinder head and has a cavity defined in said flat top end face. The cylinder head also has a socket defined therein so as to extend completely through the thickness of the bottom wall for the support of either an ignition plug or a fuel injector nozzle.