Title:
A FLUID SENSOR
Document Type and Number:
WIPO Patent Application WO/2007/147355
Kind Code:
A1
Abstract:
A fluid sensor includes a valve body (1), a valve core (2) and a position sensor (8)
for the valve core. The valve body (1) has an inner cavity (10) including an inflowing
cavity (11) and an outflowing cavity (12), and there is an inflowing port (3) connecting
with the inflowing cavity (11) at one side of the valve body (1), and there is an
outflowing port (5) connecting with the outflowing cavity (12) at the other side.
The valve core (2) is located inside the inner cavity (10) and a flowing path (4)
is formed into the interior. The entrance (41) of the flowing path (4) is connected
with the inflowing cavity (11). The valve core (2) can be moved between an original
position and an operating position, and the exit (42) of the flowing path is blocked
off by means of the inner wall of the valve body (1) at the original position, and
the exit (42) of the flowing path is connected with the outflowing cavity (12)
at the operating position. The position sensor (8) for the valve core is used to
detect the position of the valve core (2). The inflowing cavity (11) is connected
with the outflowing cavity (12) by means of a draining hole (6).
Inventors:
WANG DONGSHENG (CN)
Application Number:
PCT/CN2007/070104
Publication Date:
December 27, 2007
Filing Date:
June 12, 2007
Export Citation:
Assignee:
WANG DONGSHENG (CN)
International Classes:
G01P13/00; G01F23/00
Foreign References:
| CN1862261A | 2006-11-15 | |||
| CN1225446A | 1999-08-11 | |||
| CN1711462A | 2005-12-21 | |||
| CN2273013Y | 1998-01-21 | |||
| CN87217059U | 1988-10-05 | |||
| CN1601420A | 2005-03-30 | |||
| JPH0727595A | 1995-01-27 | |||
| JP2006098172A | 2006-04-13 | |||
| JP2005134264A | 2005-05-26 | |||
| JPH091644A | 1997-01-07 | |||
| JPH07294357A | 1995-11-10 | |||
| US4320394A | 1982-03-16 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (Yingu Mansion No. 9 Beisihuanxilu, Haidian District, Beijing 0, CN)
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