Integral oil pressure sensor

Details Integral oil pressure sensor Integral oil pressure sensor

1984-03-14

1985-11-05

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Responsive to pump lubricant, sealant, or coolant condition

417 19, 417 38, 417 44, F04B 4902, F04B 4910, F04B 4906

Patent

active

045510695

ABSTRACT:
An improved oil pump assembly for a refrigeration compressor is disclosed which includes a sensor located within the oil pump housing which is operative to de-energize the compressor in the event the pressure differential between the inlet and outlet of the oil pump drops below a predetermined level. Pressure sensing communication between the sensor and the inlet is provided via a cutout portion of the gasket between the pump and compressor housing.

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patent: 3715177 (1973-02-01), Woodier
patent: 3716306 (1973-02-01), Martin
patent: 3796522 (1974-03-01), Oshima et al.
patent: 3806273 (1974-04-01), Clark

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