| 摘要 |
<p>PROBLEM TO BE SOLVED: To sufficiently lubricate a bearing in the vicinity of a main shaft and a sliding part in a variable displacement compressor. SOLUTION: In a variable displacement compressor, the angle of inclination of a swash plate 5 is changed according to the differential pressure between a crank chamber 3 and a suction chamber 13 to change the piston stroke and to control the discharge volume. The crank chamber is communicated with the suction chamber through a first communicated passage 18, and a first orifice 19 is arranged in the first communication passage. A discharge chamber 14 is communicated with the crank chamber through a second communication passage 20, and the second communication passage is opened/closed by a pressure control valve 21 to regulate the pressure of the crank chamber. The second communication passage is bypassed through a third communication passage 22 to communicate the discharge chamber with the crank chamber, and a second orifice 23 is arranged in the third communication passage.</p> |
