Title:
潤滑剤組成物とそれを用いた減速機ならびにそれを用いた電動パワーステアリング装置
Document Type and Number:
Japanese Patent JP4994030
Kind Code:
B2
Abstract:
A lubricant composition comprising a lubricating base oil, fine particles and a calcium sulfonate-based thickener, a speed reduction gear filled with the lubricant composition, and an electric power steering apparatus comprising the speed reduction gear are disclosed. It is possible to reduce the operating noise of a speed reduction gear regardless of the amount of backlash that occurs on combining a small gear and a large gear without a more complicate structure of the speed reduction gear by an action of the fine particles while preventing separation of oil by an action of the calcium sulfonate-based thickener added to the lubricant composition, and thus the noise in the inside of car generated by the electric power steering apparatus can be reduced with a low cost.
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Inventors:
Koji Kitahata
Fumiaki Kasahara
Yoshimasa Shirai
Takashi Okaba
Satoshi Yamazaki
Fumiaki Kasahara
Yoshimasa Shirai
Takashi Okaba
Satoshi Yamazaki
Application Number:
JP2006511343A
Publication Date:
August 08, 2012
Filing Date:
March 23, 2005
Export Citation:
Assignee:
JTEKT Corporation
Kyodo Yushi Co., Ltd.
Kyodo Yushi Co., Ltd.
International Classes:
C10M169/00; B62D5/04; C10M115/10; C10M121/04; C10M169/06; F16H57/039; F16H57/04; C10M113/08; C10M117/02; C10M149/12; C10N10/04; C10N20/00; C10N20/02; C10N20/06; C10N30/00; C10N40/04; C10N50/10; F16H57/00
Domestic Patent References:
| JPH1135963A | 1999-02-09 | |||
| JPH11131086A | 1999-05-18 | |||
| JP2002363589A | 2002-12-18 | |||
| JP2002308125A | 2002-10-23 | |||
| JP2001064665A | 2001-03-13 | |||
| JP2001181668A | 2001-07-03 | |||
| JPH04266995A | 1992-09-22 | |||
| JPH07252490A | 1995-10-03 | |||
| JP2001089778A | 2001-04-03 |
Attorney, Agent or Firm:
Inaoka cultivation
Mio Kawasaki
Mio Kawasaki