Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1988-03-14
1989-12-12
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 88, 418 94, 418DIG1, F04C 1804, F04C 2902
Patent
active
048864358
ABSTRACT:
The present invention provides a low-pressure scroll compressor for use in a refrigerating system of an air conditioning apparatus or the like. Lubricating oil is intermittently supplied to a compressor unit in proportional relation to the rotating number of the motor, avoiding an excessive or insufficient supply of a lubricating oil and realizing a proper supply of the lubricating oil even in high-speed rotation of the motor. Thus the compressor is highly reliable. Further, a screening plate is provided in the suction space of a compressor, so that the lubricating oil in the coolant or cooling medium can be effectively separated from the coolant, resulting in enhancement of collecting efficiency of the lubricating oil. Moreover, the screening plate is useful to prevent a hermetic terminal from being cooled by the returning coolant. Otherwise, dew condensation would occur on the hermetic terminal, and leakage or shortcircuiting would be caused, a vital obstacle to the safety of the compressor.
REFERENCES:
patent: 4065279 (1977-12-01), McCullough
patent: 4332535 (1982-06-01), Terauchi et al.
patent: 4637786 (1987-01-01), Matoba et al.
Morokoshi Hiroshi
Muramatsu Shigeru
Sawai Kiyoshi
Yamamoto Shuuichi
Yamamura Michio
Matsushita Electric - Industrial Co., Ltd.
Vrablik John J.
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