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:
Apr. 12, 2011
Filed:
Apr. 24, 2008
Atsushi Ogasawara, Saitama, JP;
Yoshinki Tsukada, Saitama, JP;
Junya Watanabe, Saitama, JP;
Takashi Ozeki, Saitama, JP;
Shigeru Tajima, Saitama, JP;
Kazuyuki Fukaya, Saitama, JP;
Atsushi Ogasawara, Saitama, JP;
Yoshinki Tsukada, Saitama, JP;
Junya Watanabe, Saitama, JP;
Takashi Ozeki, Saitama, JP;
Shigeru Tajima, Saitama, JP;
Kazuyuki Fukaya, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A clutch actuation mechanism having a plurality of friction plates engaged with a clutch outer and a clutch inner in a relatively non-rotatable manner and arranged alternately between a bearing plate portion and a pressing plate portion. A clutch disengage/engage control mechanism for switching disengagement/engagement of the clutch actuation mechanism. A clutch piston having opposite sides facing toward a control hydraulic chamber and a hydraulic canceler chamber. A division wall member forming the hydraulic canceler chamber between the division wall member and the clutch piston for forming an oil passage, which introduces lubricating oil toward the friction plates, in cooperation with the clutch inner. A control hydraulic chamber, hydraulic canceler chamber, and division wall member are arranged within a range corresponding to the space between the outer surfaces of a bearing plate portion and pressing plate portion and radially inward of a clutch actuation mechanism.