| 摘要 |
PROBLEM TO BE SOLVED: To prevent an excessive cooling securely, by regulating the cooling capacity rapidly, even when the rotation frequency is raised. SOLUTION: In a variable capacity type compressor 1, the inclination of a swash plate element is reduced depending on the pressure rise in a crankcase 14, and the discharge amount is reduced by the reduction of the stroke of a piston 16. A control valve 30 provided to a control passage (a gas feeding passage 29) which communicates the crankcase 14 and a discharge chamber 26 has a pressure sensitive part 32 to detect the suction pressure, and to expand and contract, and a valve disc 33 which can control the opening of the control passage depending on the expansion and contraction of the pressure sensitive part 32. To the valve disc 33, a discharge pressure is operated in the direction to expand the opening of the control passage. Consequently, a control characteristic to increase the suction pressure as the discharge pressure is increased is obtained. |
