Device for prevention of backward operation of scroll compressors
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United States of America Patent
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May 17, 2005
Grant Date -
Sep 25, 2003
app pub date -
Mar 21, 2002
filing date -
Mar 21, 2002
priority date (Note) -
Expired
status (Latency Note)
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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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