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.

Date of Patent:
Nov. 01, 2005

Filed:

Dec. 22, 2003
Applicants:

Takao Fukunaga, Yawata, JP;

Yukiyoshi Takada, Katano, JP;

Kozo Mori, Osaka, JP;

Inventors:

Takao Fukunaga, Yawata, JP;

Yukiyoshi Takada, Katano, JP;

Kozo Mori, Osaka, JP;

Assignee:

Exedy Corporation, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H041/24 ;
U.S. Cl.
CPC ...
Abstract

An impeller, a turbine, and a stator form a torus of a torque converter. A elliptic ratio L/H of an axial length L of the torus to a radial height H of the torus is 0.72 or smaller. A diameter ratio (D/D) of an inner diameter Dof the torus to an outer diameter Dof the torus is 0.45 or greater. The impeller includes an impeller core, and an impeller axial length ratio (Lp/D) of an axial length Lp of the impeller core to the outer diameter Dof the torus is in a range between 0.030 to 0.045. The turbine includes a turbine core, and an turbine axial length ratio (Lt/D) of an axial length Lt of the turbine core to the outer diameter Dof the torus is in a range between 0.021 to 0.029.


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