| 摘要 |
<p>PROBLEM TO BE SOLVED: To hold the lubrication state of each sliding part in a favorable way by controlling a coolant circulation blocking means so as to continue the coolant circulation state on a outside coolant circuit for a preset time by means of a start control means regardless the state of an air conditioner switch after a case when the air conditioner switch is in its ON state at the time of starting a compressor. SOLUTION: At the time of starting an engine 20, start control is executed when the ON/OFF state of an air conditioning switch is determined as ON state. And regardless of a coolant load and operation of an air conditioning switch thereafter, an input current value to the solenoid 74 of a volume control valve 49 is made maximum so as to close a valve hole 55 by means of a valve body 54, and maximize the slant angle of a swash plate 23 so as to operate the compressor with the maximum volume. After a lapse of a preset period of time, lubricant taken out to an outside coolant circuit 78 is fed back together with sucked coolant gas so that the inside of the compressor may come in such a state as allowing existence of a sufficient quantity of lubricant for lubricating each sliding part. Accordingly, an oilless state can be ended in a short time to such an extent to exert no influence on each sliding part substantially.</p> |
