Mechanism for prevention of burning of bearing portions in a her

Details Mechanism for prevention of burning of bearing portions in a her Mechanism for prevention of burning of bearing portions in a her

1988-07-07

1989-12-26

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

Responsive to pump or pump fluid temperature

417281, 418 55E, 418 94, 184108, F04B 4902, F04C 1804

Patent

active

048894710

ABSTRACT:
In a scroll compressor, an open end of an oil extraction pipe which is placed in oil stored in a bottom portion of a hermetic casing is positioned at a location higher than an open end of an oil suction pipe that opens in the same stored oil, and a thermostat is provided for sensing a temperature rise of a compressed gas to cause the compressor to be stopped. Accordingly, even when an amount of oil injected into the compressed gas decreases, an amount of oil necessary for lubrication of a bearing portion is assured. The provision of the thermostat enables the compressor to be stopped before an amount of supply of the lubrication oil to the bearing portion has decreased. It is, accordingly, possible to positively prevent burning of the bearing portion of a crankshaft.

REFERENCES:
patent: 1863851 (1932-06-01), Hughes
patent: 3232519 (1966-02-01), Long
patent: 3233822 (1966-02-01), Comstock et al.
patent: 4343599 (1982-08-01), Kousokabe
patent: 4370099 (1983-01-01), Gannaway
patent: 4648814 (1987-03-01), Shiibayashi
patent: 4676075 (1987-06-01), Shiibayashi
patent: 4735559 (1988-04-01), Morishita et al.

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