| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a variable displacement swash plate clutchless compressor which facilitates sealing management against outside air, concurrently, restrains the occurrence of noise, and furthermore, enhances its reliability. SOLUTION: When thermal loading is low, a passage 58 is released by a control valve, the pressure of a crank room 8 is increased, and a swash plate is thereby small in inclination. When the inclination of the swash plate 10 becomes minimum, the cross sectional area of the passage 58 is reduced by the swash plate 10, and a reduction in pressure of the crank room 8 is restrained. Meanwhile, the pressure of a pressure accumulating chamber 33 is increased, a suction port 3a is thereby isolated by a spool valve 31. At this time, cooling medium gas escapes from the pressure accumulating chamber 33 to a suction chamber 13 through a groove 31a. Thus, cooling medium gas is prevented from flowing in from an evaporator 80, and cooling medium gas is circulated in the inside of a compressor. Since any mechanism opening/closing the suction port 3a is not required to be mounted on a shaft 5, the suction chamber 13 can thus be disposed to the outer side of a delivery chamber 12. Besides, sufficient preloading can be applied to the shaft 5, the shaft 5 can be kept stable in the axial direction.</p> |
