Variable capacity vane compressor
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United States of America Patent
Stats
-
Oct 15, 1991
Grant Date -
N/A
app pub date -
Oct 30, 1989
filing date -
Nov 4, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A variable capacity vane compressor has a control element rotatable in response to the difference between suction pressure and control pressure for varying the compression starting timing and hence the capacity. A communication passage extends between the suction chamber and a high pressure chamber in which the control pressure is created. A spool valve opens and closes the communicating passage. An electromagnetic actuator generates an electromagnetic force to cause the spool valve to open the communication passage when energized. A control unit is arranged outside of the compressor and supplies the actuator with an external control signal for energizing the actuator.
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