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:
Mar. 15, 2011
Filed:
Nov. 08, 2005
Koichi Eto, Wako, JP;
Akinori Maezuru, Wako, JP;
Kouichi Ikoma, Wako, JP;
Kazuhiko Iso, Wako, JP;
Yoshihiro Okada, Wako, JP;
Masakazu Kinoshita, Wako, JP;
Koichi Eto, Wako, JP;
Akinori Maezuru, Wako, JP;
Kouichi Ikoma, Wako, JP;
Kazuhiko Iso, Wako, JP;
Yoshihiro Okada, Wako, JP;
Masakazu Kinoshita, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
Secondary vibration generated accompanying reciprocation of a piston () of a multi-link variable compression ratio engine (E) can be eliminated effectively, even when the direction of the secondary vibration is inclined relative to a cylinder axis (L), by inclining the direction (shown by arrow) of an excitation force generated by a secondary balancer system () so that it coincides with the direction of the secondary vibration. The secondary balancer system () is formed by supporting balancer weights () on a pair of balancer shafts () rotating in directions opposite to each other, and by displacing the phases of these balancer weights () the direction of the excitation force generated can be inclined so as to coincide with the direction of secondary vibration of the engine (E).