Pump motor assembly for a two-phase fluid

Details Pump motor assembly for a two-phase fluid Pump motor assembly for a two-phase fluid

1996-03-08

1997-07-01

Thorpe, Timothy

Pumps

Processes

417373, 4174237, 4174238, F04B 1703

Patent

active

056429878

ABSTRACT:
A pump assembly for a liquefied gas system. The assembly has a housing which contains a seal that separates a motor chamber from a pump chamber. Located within the pump chamber is a pump device that pumps the liquid gas from an inlet port to an outlet port of the housing. The pump device is driven by a motor located within the motor chamber. The assembly includes a heat exchanger that heats any liquid gas that leaks into the motor chamber. The heat exchanger heats the liquefied gas within the motor chamber to a temperature above a critical temperature of the gas, so that the gas does not remove the lubricants from the motor. The heat exchanger can also remove heat generated by the motor to maintain the motor temperature within an operating range.

REFERENCES:
patent: 3256828 (1966-06-01), Rule
patent: 3318253 (1967-05-01), Campolong
patent: 4621981 (1986-11-01), Lorett
patent: 4854829 (1989-08-01), Stanzani et al.
patent: 5256038 (1993-10-01), Fairman

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