| US 7,493,756 B2 | ||
| Internal combustion engine with torque converter | ||
| Kinya Mizuno, Saitama (Japan); and Seiji Hamaoka, Saitama (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on May 18, 2006, as Appl. No. 11/435,935. | ||
| Claims priority of application No. 2005-148075 (JP), filed on May 20, 2005. | ||
| Prior Publication US 2006/0272609 A1, Dec. 07, 2006 | ||
| Int. Cl. F16D 33/00 (2006.01) | ||
| U.S. Cl. 60—339 | 13 Claims |
| 1. An internal combustion engine with a torque converter mounted on a crankshaft, said crankshaft being formed with an oil
passage extending along the axis of said crankshaft, an inlet hole for supplying a hydraulic fluid from said oil passage to
said torque converter, and an outlet hole for discharging said hydraulic fluid from said torque converter to said oil passage,
said crankshaft having an orifice provided in said oil passage, said inlet hole being located upstream of said orifice, said
outlet hole being located downstream of said orifice, said crankshaft being provided with a shaft bearing for supporting a
rotating shaft for said torque converter,
wherein said inlet hole is located at an axial end of said shaft bearing such that the inlet hole communicates with the axial
end of the shaft bearing and the hydraulic fluid also lubricates the shaft bearing,
wherein a first end of the shaft bearing overlaps the inlet hole such that the shaft bearing only partially overlaps the inlet
hole,
wherein the shaft bearing is not connected to any outlet holes, and
wherein the inlet hole is only connected to the shaft bearing and an oil supply passage of the torque converter.
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