Variable capacity multiple compressor refrigeration system

Details Variable capacity multiple compressor refrigeration system Variable capacity multiple compressor refrigeration system

1977-04-22

1978-07-25

Vrablik, John J.

Refrigeration

Automatic control

Refrigeration producer

62468, 62505, 62510, 417286, F25B 4100, F25B 3100

Patent

active

041021495

ABSTRACT:
The disclosed system includes first and second hermetic shell compressors, one of which always runs while the system is operating and includes unloading means for running at half load, and the other compressor operating at full load or not at all so that four operating capacity steps are available, both of the compressors having shells with suction gas inlets, oil equalizer line ports, and gas exchange line ports being identically sized and located with respect to each other so that standard compressors can be stocked and used in the multiple compressor system while the multiple compressor system is capable of being operated at the varying capacities.

REFERENCES:
patent: 2253623 (1941-08-01), Jordan
patent: 3358466 (1967-12-01), Weller et al.
patent: 3621670 (1971-11-01), Kinney
patent: 3785169 (1974-01-01), Gylland

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