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. 08, 1996
Filed:
Jun. 07, 1995
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A compression ratio changing arrangement in an internal combustion engine. In order to change the compression ratio by utilizing, to the maximum, an eccentric amount between inner and outer peripheral surfaces of an eccentric ring interposed between a crank pin and a large end of a connecting rod in a compression ratio changing device, the eccentric ring is selectively connected to the crank pin or the large end of the connecting rod by a connecting pin with the thinnest portion or thickest portion of the connecting ring being turned toward the center of rotation of a crankshaft. The selective connection is performed when the piston is at botton dead center. When the eccentric ring has been connected to the crank pin, the stroke of the piston is increased or decreased by an amount corresponding to two times the eccentric amount of the eccentric ring without changing the position of the bottom dead center of the piston, as compared to the stroke with when the eccentric ring has been connected to the large end.