| 摘要 |
<p>PROBLEM TO BE SOLVED: To obviate the inflow of an electric current into a drive circuit due to counter electromotive force by installing a capacity control valve, altering the extent of pressure in a control pressure chamber, on a passage interconnecting this control pressure chamber and an inlet pressure area or discharge pressure area, and connecting a flywheel circuit to a solenoid making the valve element operate to open or close. SOLUTION: When a piston 36 is reciprocated by rotation of a swash plate 23, coolant gas taken into a cylinder bore 12a is discharged to a discharge chamber 39 via a discharge valve 43. At this time, a capacity control valve 49 is installed in a pressure supply passage 48 connecting this discharge chamber 39 and a crankcase 15, a pressure detecting passage 50 is made up in space between an inlet passage 32 and the capacity control valve 49. In succession, a diode 97 is installed in a storage space 93 of the capacity control valve 49, and cathode of this diode 97 is connected to the puls terminal of a combination 95, and the anode to a minus terminal, respectively, constituting a flywheel circuit against a solenoid 74, and any possible inflow of an electric current in the case where counter electromotive force has occurred in this solenoid 74 is checked.</p> |
