| US 7,412,913 B2 | ||
| Apparatus for driving an oil pump for automatic transmission | ||
| Masanori Ishikawa, Shizuoka (Japan); Yuji Takahashi, Kanagawa (Japan); and Hiromu Soya, Kanagawa (Japan) | ||
| Assigned to JATCO Ltd, Shizuoka (Japan) | ||
| Filed on May 09, 2005, as Appl. No. 11/124,392. | ||
| Claims priority of application No. 2004-146827 (JP), filed on May 17, 2004. | ||
| Prior Publication US 2005/0255954 A1, Nov. 17, 2005 | ||
| Int. Cl. F16H 47/02 (2006.01) | ||
| U.S. Cl. 74—732.1 [74/733.1] | 10 Claims |
| 1. An apparatus for driving an oil pump connected with a torque converter, the apparatus comprising:
a rotation shaft in driving connection with the torque converter;
a drive sprocket rotatable about the rotation shaft and adapted to be connected with a driven sprocket disposed on the oil
pump via a chain;
a first sleeve disposed on a radial outside of the rotation shaft so as to be rotatable together with the torque converter,
the first sleeve being engaged with the drive sprocket;
a second sleeve fixedly disposed on a radial inside of the first sleeve;
a first bearing supporting the first sleeve so as to be rotatable relative to the second sleeve; and
a second bearing supporting the drive sprocket so as to be rotatable relative to the second sleeve.
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