Title:
IMPROVED DIAPHRAGM VALVE
Document Type and Number:
WIPO Patent Application WO/2019/090461
Kind Code:
A1
Abstract:
A pilot actuated diaphragm valve (10). The valve (10) has an inlet (34), an outlet (36), a diaphragm (40), a bleed channel (26), and an annular filter (100). The bleed channel (26) has a bleed channel axis X. The annular filter (100) is arranged upstream of the diaphragm (40). The bleed channel (26) is arranged upstream of the diaphragm (40). The annular filter (100) is axially aligned with the inlet (34). The annular filter (100) is orthogonally aligned with the bleed channel axis X, arranged to prevent contaminants entering the bleed channel (26). A coolant control system for a vehicle, the coolant control system comprising a pilot actuated diaphragm valve (10).
Inventors:
LIU YI (CN)
CHENG JING (CN)
WANG QIANG (CN)
CHENG JING (CN)
WANG QIANG (CN)
Application Number:
PCT/CN2017/109667
Publication Date:
May 16, 2019
Filing Date:
November 07, 2017
Export Citation:
Assignee:
NORGREN MFG CO LTD (CN)
International Classes:
F16K7/17; F16K31/06
Domestic Patent References:
| WO1995014874A1 | 1995-06-01 |
Foreign References:
| CN2378585Y | 2000-05-17 | |||
| CN2465008Y | 2001-12-12 | |||
| CN201628005U | 2010-11-10 | |||
| CN201221615Y | 2009-04-15 | |||
| CN103644337A | 2014-03-19 |
Attorney, Agent or Firm:
SHANGHAI BESHINING LAW OFFICE (CN)
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