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. 03, 2006
Filed:
Nov. 16, 2004
Yoshihiro Yoshida, Saitama, JP;
Nobuyuki Yakigaya, Saitama, JP;
Yoshihisa Kanno, Saitama, JP;
Kenji Sakakibara, Saitama, JP;
Yoshiaki Tsukada, Saitama, JP;
Takashi Ozeki, Saitama, JP;
Takehiko Nanri, Saitama, JP;
Yoshihiro Yoshida, Saitama, JP;
Nobuyuki Yakigaya, Saitama, JP;
Yoshihisa Kanno, Saitama, JP;
Kenji Sakakibara, Saitama, JP;
Yoshiaki Tsukada, Saitama, JP;
Takashi Ozeki, Saitama, JP;
Takehiko Nanri, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A hydrostatic continuously variable transmission includes a hydraulic pump and a hydraulic motor, supported by a common support shaft, and hydraulically connectable to each other through a hydraulic circuit including an inside passage and an outside passage. A clutch device includes a valve spool, which is slidably disposed in a hollow internal bore formed in the transmission support shaft. The valve spool is operable to make or interrupt fluid communication between the inside passage and the outside passage, according to the movement thereof. A governor mechanism is mounted to a pump casing of the hydraulic pump, and the governor mechanism generates a governor force corresponding to the rotating speed of a clutch cap, by use of centrifugal force generated by the rotation thereof. The valve spool is effectively moved in the hollow internal bore, using the governor force generated from the governor mechanism, to engage or disengage the clutch.