Oil feeding system for scroll compressor

Details Oil feeding system for scroll compressor Oil feeding system for scroll compressor

1988-08-03

1990-02-06

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 88, 418 96, 418171, F04C 1804, F04C 2902

Patent

active

048985210

ABSTRACT:
An oil feeding system for a scroll compressor includes an enclosed vessel accommodating therein an electric motor disposed at an upper position and a scroll compressor section disposed at a lower section and adjacent to the motor. A suction pipe opens into the enclosed vessel for the purpose of maintaining a low-pressure atmosphere in the interior of the enclosed vessel. A gyratory shaft of a gyratory scroll engages with an eccentric hole formed in the end of the drive shaft, and a trochoid pump is disposed at the end of the gyratory shaft. A pump case has a portion below the pump, which is formed with a circular-arc large-volume suction port on one side thereof and a circular-arc discharge-side oil sump on the other side thereof. The suction port communicates via an oil line with an oil reservoir provided at the bottom of the enclosed vessel and the circular-arc oil sump communicates with the trochoid pump whereby oil discharged by the trochoid pump is fed to various portions to be lubricated through cavities of the eccentric hole.

REFERENCES:
patent: 4623306 (1986-11-01), Nakamura et al.

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