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:
May. 15, 2007
Filed:
Mar. 11, 2005
Yoshihiro Yoshida, Wako, JP;
Toshimasa Mitsubori, Wako, JP;
Takashi Ozeki, Wako, JP;
Kazuhiko Nakamura, Wako, JP;
Yoshihiro Yoshida, Wako, JP;
Toshimasa Mitsubori, Wako, JP;
Takashi Ozeki, Wako, JP;
Kazuhiko Nakamura, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
In a hydrostatic continuously variable transmission, a hydraulic pump is linked to a hydraulic motor by a hydraulic closed circuit to change the capacity of the hydraulic motor so as to change the speed of a motorcycle continuously. A clutch device comprising a clutch valve for connecting and disconnecting a high pressure side oil passage and a low pressure side oil passage constituting the hydraulic closed circuit. A governor mechanism for generating governor force corresponding to the input rotation speed of the hydraulic pump and applying this governor force in the closing direction of the clutch valve. A spring for giving urging force in the opening direction of the clutch valve, and a buffer mechanism having a variable oil chamber and an oil pool chamber for easing the opening and closing movements of the clutch valve activated according to the governor force and the urging force.