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:
Aug. 11, 1998
Filed:
Feb. 04, 1997
Masakazu Yamazaki, Wako, JP;
Fuminori Kawashima, Wako, JP;
Shinji Yamada, Wako, JP;
Chiharu Shimizu, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A secondary balancer device provided below a cylinder block of an engine including a front balancer shaft and a rear balancer shaft which are rotated in opposite directions and have longitudinally central main journal portions carried in a balancer holder, respectively. Bracing journal portions are provided on axial ends of one of the front and rear balancer shafts and supported in a pump body and a pump cover of an oil pump provided below the cylinder block, respectively. A pump shaft of the oil pump and the front balancer shaft are connected to a crankshaft by a common endless chain and rotated at different numbers of revolutions. Thus, the number of parts for supporting the balancer shafts can be reduced, while maintaining the freedom of setting the number of revolutions of the oil pump of the engine.