Heating cycle system of a vehicle
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United States of America Patent
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-
Oct 15, 1996
Grant Date -
N/A
app pub date -
Sep 12, 1995
filing date -
Sep 12, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a heating cycle system of a motor vehicle which includes the vehicle internal combustion engine, a heating device which is independent of the engine, an interior heat exchanger, a circulating pump, and a bypass line which connects a return line to a flow line. According to the invention the circulating pump is driven by a reversible electric motor and is used as a control element for selective operation of a small cycle including only the heating device and the vehicle heat exchanger or a large cycle which also includes the internal combustion engine. The direction of operation of the circulating pump controls a valve which directs fluid to either the small or the large cycle.
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