Title:
THROTTLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/046526
Kind Code:
A1
Abstract:
A throttle device, comprising a throttle valve (20) disposed in a intake passage, a throttle shaft (30) openably supporting the throttle valve (20), a drive means (40) rotatingly driving the throttle shaft (30), and a torsion type return spring (50) deformed interlockingly with the rotation of the throttle shaft (30) and returning the throttle valve (20) to a closing side rest position, wherein a deformation force transmitting mechanism (60) having a speed reduction gear (62) is installed to cause a torsional deformation on the return spring (50) within an angular range less than the rotating angle range of the throttle shaft (30), whereby the maximum energizing force of the return spring can be lowered.
Inventors:
HANASATO MAKI (JP)
Application Number:
PCT/JP2003/014694
Publication Date:
June 03, 2004
Filing Date:
November 19, 2003
Export Citation:
Assignee:
MIKUNI KOGYO KK (JP)
HANASATO MAKI (JP)
HANASATO MAKI (JP)
International Classes:
F02D9/10; F02D11/10; F02D9/02; (IPC1-7): F02D9/02; F02D11/10
Foreign References:
| US4785782A | 1988-11-22 | |||
| JPH08218945A | 1996-08-27 | |||
| JP2982456B2 | 1999-11-22 | |||
| US6276664B1 | 2001-08-21 | |||
| JP3240506B2 | 2001-12-17 | |||
| JP2000097054A | 2000-04-04 | |||
| JPH06173695A | 1994-06-21 | |||
| JP2528414Y2 | 1997-03-12 |
Attorney, Agent or Firm:
Yashima, Keiichi (Hosokawa Building 1-17, Akasaka 1-chom, Minato-ku Tokyo, JP)
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