Title:
PLANETARY GEARSET WITH MULTI-LAYER COATED SUN GEAR
Document Type and Number:
WIPO Patent Application WO2004022273
Kind Code:
A3
Abstract:
A planetary gearset includes a sun gear member having a sun gear body made of a steel material and an outer periphery with a plurality of teeth formed thereon. Each of the sun gear teeth has at least one mating surface for engaging mating surfaces on complementary teeth on at least one planet gear. A fatigue-resistant coating is applied to the mating surfaces of the sun gear teeth. The coating is harder and more abrasive than the mating surfaces of the planet gear teeth.
Inventors:
LEV LEONID CHARLES
CHENG YANG-TSE
ANDERSON NEIL E
WEINER ANITA MIRIAM
PALUCH ROBERT F
CHENG YANG-TSE
ANDERSON NEIL E
WEINER ANITA MIRIAM
PALUCH ROBERT F
Application Number:
PCT/US2003/027627
Publication Date:
June 24, 2004
Filing Date:
September 04, 2003
Export Citation:
Assignee:
GEN MOTORS CORP (US)
International Classes:
F16H55/06; F16H57/04; (IPC1-7): F16H57/04
Foreign References:
| US6170156B1 | 2001-01-09 | |||
| US5288556A | 1994-02-22 | |||
| JPS60101353A | 1985-06-05 | |||
| JPH0314998A | 1991-01-23 | |||
| US4944196A | 1990-07-31 |
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