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Patent Searching and Data


Title:
EVAPORATION PRESSURE REGULATING VALVE
Document Type and Number:
WIPO Patent Application WO/2018/159156
Kind Code:
A1
Abstract:
Provided is an evaporation pressure regulating valve, which is disposed between an evaporator (18) and a compressor (11) in a refrigeration cycle (10), and which regulates a refrigerant evaporation pressure in the evaporator to be equal to or higher than a predetermined reference evaporation pressure. The evaporation pressure regulating valve comprises: a refrigerant inflow channel (42); a valve chest (51); a body (40) in which a refrigerant outflow channel (43) is formed; a valve element (55); an opening degree adjustment chamber (53); an elastic member (61); and a sealing member (71, 72, 73). The valve element includes a large-diameter portion (56) and a small-diameter portion (60). The opening degree adjustment chamber has an insertion hole (48), through which the small-diameter portion is inserted, and has therein reference gas for generating reference pressure. The elastic member is disposed in the opening degree adjustment chamber, and biases the small-diameter portion of the valve element in the closing direction. The sealing member blocks the flow of refrigerant through the insertion hole between the valve chest and the opening degree adjustment chamber.

Inventors:
HONDA SHIN (JP)
Application Number:
PCT/JP2018/001882
Publication Date:
September 07, 2018
Filing Date:
January 23, 2018
Export Citation:
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Assignee:
DENSO CORP (JP)
International Classes:
F16K17/04; F25B41/06
Foreign References:
JPS5172755A1976-06-23
JP2007040422A2007-02-15
JP2008196518A2008-08-28
JP2015152137A2015-08-24
JP2005265223A2005-09-29
Attorney, Agent or Firm:
JIN Shunji (JP)
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