Fluid pressure amplifier (liquid line pump)
Liquid pressure amplification (LPA) is used to increase the effective level of hypothermia in the expansion valve and to reduce the amount of work required by the compressor. This is achieved by a liquid pump between the receiver outlet and the expansion valve. Pump raises the pressure on the liquid in the expansion valve, so that the valve will control even when the head is floating down with the fall of the ambient temperature. Significant power savings and increase of reliability of reported users LPA systems...
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