Device for reducing the pressure of a compressor in the idling and shutdown mode
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United States of America Patent
Stats
-
Dec 17, 1996
Grant Date -
N/A
app pub date -
Mar 28, 1995
filing date -
Mar 30, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for reducing pressure in a compressor when it is in the idling and shut-down mode, in the induction manifold of which there is an induction control valve that controls the passage through the induction manifold, is provided with a bypass line that incorporates a closeable relief valve. The device for reducing pressure incorporates a spring-loaded pressure keeper valve that can be adjusted to the desired pressure, and an additional second relief valve that is arranged in parallel to the first relief valve. This second relief valve is acted upon by the pressure immediately upstream of the compressor in the induction manifold, and opens an additional relief path as soon as this pressure exceeds a pro-determined level when the compressor is shut down. The two relief valves and the pressure keeper valve can be incorporated into a common housing.
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