Compressor oil pump

Details Compressor oil pump Compressor oil pump

1981-06-01

1983-09-27

Gluck, Richard E.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

417372, 417902, 415 72, 184 618, F04B 3902, F03B 312, F01M 900

Patent

active

044065949

ABSTRACT:
A compressor oil pump with integral contaminant collector and helical vane for improved pumping efficiency. A generally cone-shaped pick-up tube is adapted to be attached to the lower end of a hollow rotatably driven vertical shaft for rotation thereby about its longitudinal axis. The lower end of the pick-up tube includes an inlet opening which extends into a reservoir of oil. An annular contaminant collection groove is disposed circumferentially within the wall of the pick-up tube forming a pocket. This groove collects and retains contaminant particles contained in oil which is swept up the tapered interior surface of the tube due to the centrifugal force developed by its rotation. The helical vane is provided in the interior of the pick-up tube to increase its pumping efficiency. The vane acts to accelerate the oil to the rotational speed of the pump, thereby improving the volumetric flow output from the pump.

REFERENCES:
patent: 3285504 (1966-11-01), Smith
patent: 3410478 (1966-11-01), Geisenhaver
patent: 3674382 (1972-07-01), Kubota et al.
patent: 3692435 (1972-09-01), Iida et al.
patent: 4091638 (1978-05-01), Mitch
patent: 4097185 (1978-06-01), Wolf
"High Efficiency Reciprocating Compressors" by Delmar R. Riffe ASHRAE Journal, Sep. 1975, pp. 129-133.

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