Scroll-type compressor and operation method therefor

Details Scroll-type compressor and operation method therefor Scroll-type compressor and operation method therefor

1998-12-04

2000-06-20

Walberg, Teresa

Pumps

Condition responsive control of pump drive motor

Responsive to pump or pump fluid temperature

417 63, F04B 4910

Patent

active

060770457

ABSTRACT:
A scroll-type compressor which prevents seizure or scuffing due to tight contact between spiral laps and end plates of fixed and revolving scrolls is provided. The compressor comprises two thermocouples, the contact point of one thermocouple being with a central portion of the end plate of the fixed scroll, while the contact point of the other thermocouple being with the housing. The operation of the scroll-type compressor is terminated when a difference between temperature values detected by the thermocouples reaches a predetermined value.

REFERENCES:
patent: 4820130 (1989-04-01), Eber et al.
patent: 4889471 (1989-12-01), Izunaga et al.
patent: 5256042 (1993-10-01), McCullough et al.
patent: 5640854 (1997-06-01), Fogt et al.

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