F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
230/49
F04B 39/02 (2006.01) F04D 1/14 (2006.01) F04D 29/06 (2006.01) F16N 13/20 (2006.01)
Patent
CA 1181048
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 at- tached to the lower end of a hollow rotatably driven ver- tical 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 ro- tation. 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.
402749
Butterworth Arthur L.
Smaby Stephen A.
American Standard International Inc.
Fetherstonhaugh & Co.
Trane Company Of Canada Limited
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