Title:
VARIABLE DISPLACEMENT COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2024/070420
Kind Code:
A1
Abstract:
This variable displacement compressor reduces inflow of foreign substances to a capacity control valve which controls the discharge capacity of a refrigerant. A swash plate compressor (100), as one example of the variable displacement compressor, has: a suction chamber (150); a compression mechanism which sucks and compresses a refrigerant in the suction chamber (150); a discharge chamber (152) to which the refrigerant compressed by the compression mechanism is discharged; a crank chamber (110) which changes the state of the compression mechanism in accordance with the internal pressure; and a capacity control valve (200) disposed in a pressure supply path (156) which connects the discharge chamber (152) and the crank chamber (110). The capacity control valve (200) has a plurality of introduction ports and increases/decreases the flow rate of the refrigerant supplied from the discharge chamber (152) to the crank chamber (110) to change the internal pressure of the crank chamber (110), thereby controlling the discharge capacity of the refrigerant. Further, the cross-sectional area of the pressure supply path (156) opened in the discharge chamber (152) is larger than the total cross-sectional area of the plurality of introduction ports of the capacity control valve (200).
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Inventors:
SHITAN MASATOSHI (JP)
SATO JUNYA (JP)
MATSUZAKI YOSHIE (JP)
SATO JUNYA (JP)
MATSUZAKI YOSHIE (JP)
Application Number:
PCT/JP2023/031302
Publication Date:
April 04, 2024
Filing Date:
August 29, 2023
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
F04B27/12; F04B27/18
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