Lubricating device for horizontal type hermetic compressor

Details Lubricating device for horizontal type hermetic compressor Lubricating device for horizontal type hermetic compressor

1995-09-18

1997-05-27

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

With relatively movable partition member

418 88, 418 94, F04C 18356, F04C 2902

Patent

active

056326130

ABSTRACT:
A lubricating device for a horizontal type hermetic compressor. The device includes an oil cylinder at the back of a spring-biased vane in a compressing cylinder, and also includes an oil piston and an oil valve in the oil cylinder. The oil piston communicates with the oil valve by the movement of the vane, thus to achieve the lubrication oil supply through the oil cylinder. The oil piston is biased by a compression coil spring positioned under the piston, so that it is easy to fabricate the compressor. Since the length of the oil piston is longer than the distance between the upper dead point of the oil pumping chamber and the vane slot reference hole, introduction of refrigerant into the oil cylinder is reliably prevented. This device uses a conventional horizontal type hermetic compressor with a slight change of its construction and easily precisely controls the flow rate of the lubrication oil to be delivered. The lubricating device also remarkably reduces the oil suction load in the pumping chamber and, as a result, the desired smooth introduction of the lubrication oil into the pumping chamber is achieved.

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