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. 22, 2006
Filed:
Mar. 29, 2004
Applicants:
Hiroya Abe, Saitama, JP;
Tetsurou Maruyama, Saitama, JP;
Toshitaka Imai, Saitama, JP;
Inventors:
Assignee:
Honda Motor Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16H 61/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A hydraulic transmission apparatus with a lockup clutch has a pump impeller, a turbine runner, a side cover, a lockup clutch, a clutch piston, a lockup control unit, a frictional engagement unit and a resilient member, a backward movement stopping unit, wherein a transmission capacity of the lockup clutch by virtue of a biasing force of the resilient member is set smaller than a torque absorption capacity of the pump impeller when the engine is in an idle state so that the clutch piston is held at the predetermined backward position by virtue of the pressure difference when the engine is in the idle state.