F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 45/00 (2006.01) F16K 11/085 (2006.01) F16L 41/04 (2006.01) F25B 41/00 (2006.01)
Patent
CA 2259051
A method of recovering a coolant at a low cost and highly efficiently, an apparatus therefor and a tool therefor. When an apparatus from which to recover is an automobile, the fuel remaining in the fuel tank is burned and consumed to prevent contamination to the environment. The three-way valve unit is opened to the recovery circuit simultaneously with the connection of the coupler unit to the recovery circuit in order to avoid a sudden increase in the pressure even when the compressor does not readily come into a halt, and the pressurized fluid such as the coolant is safely recovered by the recovery circuit out of the system. The coolant is guided into the recovery tank through the condenser utilizing gravity by driving the compressor in the apparatus from which the coolant is to be recovered, such as a car or an apparatus (refrigerator, refrigerated show case, etc.) out of service. A socket is fitted to a plug of the coupler unit in the three-way valve box disposed in the pressurized fluid circuit such as a refrigerator circuit. Then, the socket or a sleeve which is an outer cylinder thereof is turned by about 45 to about 90 degrees. Or, the socket is pushed and pulled to turn the valve, and the pressurized fluid is safely and reliably recovered by the recovery circuit connected to the socket in an ON-OFF manner or in a proportionally controlled manner.
Arii Tsuneo
Smart & Biggar
LandOfFree
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