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. 07, 1982
Filed:
May. 11, 1981
Shoichiro Irimajiri, Kawagoe, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An internal combustion engine is provided with at least one oblong cylinder and an oblong piston mounted to reciprocate therein. A piston ring is positioned within an annular piston ring groove formed in the piston, the piston ring including an outer ring in contact with the cylinder, an inner ring and a biasing means such as a corrugated plate spring positioned between the inner ring and the outer ring. The inner ring is normally slightly spaced apart from the inner periphery of the piston ring groove so that the piston ring is allowed to be laterally displaced the amount of such spacing during piston oscillation, thereby providing improved sealing between the piston and cylinder.