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Patent Searching and Data


Title:
THROTTLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/150906
Kind Code:
A1
Abstract:
A throttle device of the present invention is provided with: a body (10); a valve shaft (30); a throttle valve (40); a drive source (100); and a default mechanism which positions the throttle valve at a default position between a fully closed position and a fully open position. The default mechanism includes: a defining portion (90) with which the body is provided to define the default position; a first rotor (50) which rotates together with the valve shaft; a second rotor (60) which can be rotated relative to the valve shaft, and of which rotation in a valve-closing direction is limited by engaging with the defining portion; a first urging spring (70) which is interposed between the first rotor and the body and urges the first rotor in the valve-closing direction; and a second urging spring (80) which is interposed between the first rotor and the second rotor, draws the first rotor in a valve-opening direction and the second rotor in the valve-closing direction so as to cause both to be engaged with each other, and urges both to maintain the engagement when the drive source is not operating. In this way, it is possible to set and adjust the default position easily, and to achieve consolidation of components and a reduction in device size.

Inventors:
MORIYA SHO (JP)
SUZUKI KEIGO (JP)
HIEI MASAKI (JP)
Application Number:
JP2019/000529
Publication Date:
August 08, 2019
Filing Date:
January 10, 2019
Export Citation:
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Assignee:
MIKUNI KOGYO KK (JP)
International Classes:
F02D9/02
Foreign References:
JP2006312944A2006-11-16
JP2000110589A2000-04-18
JP2017101626A2017-06-08
JP2017110525A2017-06-22
Attorney, Agent or Firm:
YAMAMOTO Takatoshi (JP)
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