Device for prevention of backward operation of scroll...

Details Device for prevention of backward operation of scroll... Device for prevention of backward operation of scroll...

2006-05-23

2006-05-23

Koczo, Jr., Michael (Department: 3746)

Pumps

Condition responsive control of pump drive motor

Responsive to pump or pump fluid temperature

C417S044100, C062S228100

Reexamination Certificate

active

07048511

ABSTRACT:
A method and apparatus which provides a pressure sensor and/or temperature sensor connected to the low pressure side of a refrigeration system, or the discharge line of a scroll compressor. When the scroll compressor rotates backward, the change of pressure or temperature immediately sends a signal to work with a time-delay relay and a normally closed relay to immediately cut off the electrical power supply to the compressor. Thus, causing the scroll compressor to stop rotating in the undesirable direction.

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