Title:
VALVE DEVICE AND DEVICE FOR CONTROLLING IDLE AIR AMOUNT
Document Type and Number:
WIPO Patent Application WO/2007/145311
Kind Code:
A1
Abstract:
A valve device that has a simple structure, is small in size, low in cost, and light in
weight, and can reliably perform opening and closing operation. The valve device
has a valve body (20) having a predetermined outer peripheral surface (22a) and
a female screw thread (25c') in the direction of the axis (L) of the valve
body; a rotation member (32) having a male screw thread (32a) screwed to the female
screw thread (25c') of the valve body (20), and a drive source (30) for driving
the rotation member (32). A path (13) is opened and closed by the outer peripheral
surface (22a) of the valve body (20). The valve body (20) further has a circular
tube-shaped valve member (21) having the outer peripheral surface (22a) and
a screw member (25) connected to the valve member (21) so as to be movable by a predetermined
amount relative to the valve member in the direction of the axis (L). The valve
body (20) can reliably perform opening and closing operation without being locked
by biting or sticking. Also, highly accurate dimension management is not required,
and this reduces production costs and facilitates forming of the valve body from
resin.
Inventors:
FUJITA YOSHIHIRO (JP)
MIURA OSAMU (JP)
ANDO SATOSHI (JP)
MIURA OSAMU (JP)
ANDO SATOSHI (JP)
Application Number:
PCT/JP2007/062094
Publication Date:
December 21, 2007
Filing Date:
June 15, 2007
Export Citation:
Assignee:
MIKUNI KOGYO KK (JP)
FUJITA YOSHIHIRO (JP)
MIURA OSAMU (JP)
ANDO SATOSHI (JP)
FUJITA YOSHIHIRO (JP)
MIURA OSAMU (JP)
ANDO SATOSHI (JP)
International Classes:
F16K31/04; F02M3/12; F02M69/32
Domestic Patent References:
| WO2005095774A1 | 2005-10-13 |
Foreign References:
| JP2003148303A | 2003-05-21 | |||
| JPH0285085U | 1990-07-03 | |||
| JP2002106723A | 2002-04-10 |
Attorney, Agent or Firm:
YASHIMA, Keiichi (HOSOKAWA Building 1-17, Akasaka 1-chome, Minato-k, Tokyo 52, JP)
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