| 摘要 |
<p>PURPOSE:To shorten the rising time for cooling operation by furnishing an electrical holding means which holds the pressure in a control chamber such as crank chamber and pressure actuation chamber in non-operated condition of a pressure response type opening/closing means when the pressure on low pressure chamber sinks below a specific level. CONSTITUTION:In this variable capacity type compressor 1, a piston 27 is reciprocated by swinging of a swing plate 25, caused by rotation of a rotary shaft 22, through a piston rod 51. The discharge capacity is changed by opening and closing a communication line 37, which puts the suction chamber (low pressure chamber) 34 in communication with the crank chamber (control chamber) 28, by a pressure response type opening/closing valve 29 controlled according to the pressure on the pressure chamber side. At this time, a No.2 communication line 3 to put these chambers 32, 28 together is furnished and provided with a control valve 30 is electrical holding means. The opening/closing valve 29 is held in non-operated condition with the pressure of the crank chamber 28, even though the pressure on the suction chamber side has sunk, by supplying current to the control valve 30 when an evaporator switch 43 is turned on.</p> |
