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Title:
FLOW PATH SWITCHING VALVE
Document Type and Number:
WIPO Patent Application WO/2014/141358
Kind Code:
A1
Abstract:
A stator and a rotor are in contact so as to maintain fluid tightness inside a housing having a connection port on the outer surface. The stator forms part of an inner wall surface of the housing, and has a port end positioning surface whereupon a plurality of holes that lead to the connection port are disposed. The rotor is in contact with the port end positioning surface of the stator so as to maintain fluid tightness, and has a flow path connection surface whereupon grooves, which are selectively connected between the holes disposed on the port end positioning surface, are formed. At least one of the port end positioning surface and the flow path connection path is coated with a resin film having chemical resistance and sliding properties.

Inventors:
YASUNAGA KENICHI (JP)
Application Number:
PCT/JP2013/056574
Publication Date:
September 18, 2014
Filing Date:
March 11, 2013
Export Citation:
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Assignee:
SHIMADZU CORP (JP)
International Classes:
F16K3/08
Domestic Patent References:
WO2009101695A12009-08-20
Foreign References:
JP2012533041A2012-12-20
JPH06300156A1994-10-28
JPH08159304A1996-06-21
JPH07285807A1995-10-31
Attorney, Agent or Firm:
NOGUCHI SHIGEO (JP)
Shigeo Noguchi (JP)
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