To suppress variation in a refrigerant filling time to a refrigerant circuit.
This refrigerant filling device comprises a motor-operated valve 49 provided at a supply pipe 47; a flow control part 50 adjusting the opening of the motor-operated valve 49 so that flow in the supply pipe 47 is within a predetermined range based on the pressure difference between the pressure of a refrigerant supplied to the supply pipe 47 and a refrigerant pressure on the intake side of a compressor 14; an outside air temperature sensor 36 detecting an outside air temperature; and a low pressure side pressure sensor 34 detecting the refrigerant pressure on the intake side of the compressor 14. The pressure difference is the pressure difference between a saturation pressure equivalent to the outside air temperature detected by the outside air temperature sensor 36, and the refrigerant pressure detected by the low pressure side pressure sensor 34.
OKA MASAHIRO
TANI KAZUHIKO
OKAMOTO ATSUSHI
JP2006010117A | 2006-01-12 | |||
JP2006207925A | 2006-08-10 | |||
JP2005241050A | 2005-09-08 | |||
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JP2005241172A | 2005-09-08 |
Takao Ito
Jiro Higuchi
Tamagushi Yukihisa