Refrigeration – Automatic control – Trapping and discharging refrigerant batches
Patent
1989-09-25
1991-04-16
Wayner, William E.
Refrigeration
Automatic control
Trapping and discharging refrigerant batches
62512, F25B 4100
Patent
active
050072471
ABSTRACT:
The refrigeration or heat pump installation includes a liquid separator that has a vapor chamber having a port connected to the outlet of the evaporator and an outlet connected through a suction conduit to a compressor. The separator also has an intermediate chamber beneath the vapor chamber for receiving liquid from the vapor chamber by the way of a first switching valve, the intermediate chamber being connected to the inlet of the evaporator for the purpose of recirculating liquid. A second switching valve forms part of the expansion apparatus for controlling the flow of fluid either directly to the intermediate chamber or through the first switching valve to the intermediate chamber. The two switching valves are operated to open and closed conditions in the opposite sense for controlling and almost continuous pulsating recirculation of liquid through the evaporator. The expansion apparatus is connected through a condenser to the outlet of the compressor.
REFERENCES:
patent: 3827249 (1974-08-01), Garland et al.
patent: 3848425 (1974-11-01), Watkins
Danfoss A/S
Easton Wayne B.
Johnson Clayton R.
Wayner William E.
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