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:
Dec. 05, 2006
Filed:
Sep. 22, 2004
Yukihisa Tsuzuki, Kariya, JP;
Kuniaki Kuwahara, Toyota, JP;
Yukihisa Tsuzuki, Kariya, JP;
Kuniaki Kuwahara, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A torque converter includes a front cover connected to an engine with a set block, a pump impeller integrally connected to the front cover, a turbine runner facing to the pump impeller and connected to an input shaft of a transmission, a lock-up clutch for engaging/disengaging the front cover relative to the input shaft through a damper, an engaging hydraulic pressure chamber separated from a power transmission hydraulic chamber surrounded by the pump impeller and the front cover, and that engaging pressure of the lock-up clutch is provided into the engaging hydraulic pressure chamber, a front cover hub, a piston inserted so as to slide in the engaging hydraulic pressure chamber, a clutch engaging portion operated to be engaged/disengaged by the piston, plural projection portions being projecting by stamping and welded to the front cover, and an oil path formed between the front cover and the front cover hub among the projection portions.