Title:
CAPACITY CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2006/090760
Kind Code:
A1
Abstract:
A capacity control valve having a valve body (40) integrally provided with a first valve section (41) that opens and closes a discharge side path for communicating a discharge chamber (11) and a control chamber (12) and with a second valve section (42) that opens and closes a suction side path for communicating a suction chamber (13) and the control chamber (12); a pressure sensitive body (50) provided in a third valve chamber (38) in the middle of the suction side path; a valve seat body (53) provided at the pressure sensitive body (50); a third valve section (43) joined to the valve body (40) and opening and closing the suction side path by being engaged with and disengaged from the valve seat body (53); and other elements. Either an engagement surface (43a) of the third valve section or a seat surface (53a) of the valve seat body is formed in a spherical shape having a curvature radius R of 9 mm < R < 11 mm. Also, the other of the engagement surface (43a) of the third valve section or the seat surface (53a) of the valve seat body is formed in a tapered surface having a center angle &agr in the range of 120° <&agr < 160°. The construction enables liquid refrigerant etc. collected in the control chamber to be efficiently discharged, so that a predetermined capacity control can be quickly performed.
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Inventors:
UMEMURA SATOSHI (JP)
OTA MASAKI (JP)
KAWAGUCHI MASAHIRO (JP)
CHO RYOSUKE (JP)
SHIRAFUJI KEIGO (JP)
IWA TOSHIAKI (JP)
OTA MASAKI (JP)
KAWAGUCHI MASAHIRO (JP)
CHO RYOSUKE (JP)
SHIRAFUJI KEIGO (JP)
IWA TOSHIAKI (JP)
Application Number:
PCT/JP2006/303231
Publication Date:
August 31, 2006
Filing Date:
February 23, 2006
Export Citation:
Assignee:
TOYOTA JIDOSHOKKI KK (JP)
EAGLE IND CO LTD (JP)
UMEMURA SATOSHI (JP)
OTA MASAKI (JP)
KAWAGUCHI MASAHIRO (JP)
CHO RYOSUKE (JP)
SHIRAFUJI KEIGO (JP)
IWA TOSHIAKI (JP)
EAGLE IND CO LTD (JP)
UMEMURA SATOSHI (JP)
OTA MASAKI (JP)
KAWAGUCHI MASAHIRO (JP)
CHO RYOSUKE (JP)
SHIRAFUJI KEIGO (JP)
IWA TOSHIAKI (JP)
International Classes:
F04B27/18
Foreign References:
| JP2001132632A | 2001-05-18 | |||
| JPS61286591A | 1986-12-17 |
Other References:
See also references of EP 1852606A4
Attorney, Agent or Firm:
Yamamoto, Takatoshi (Nishishinbashi 1-chom, Minato-ku Tokyo 03, JP)
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