| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a compressor characterized by securing just enough return oil quantity according to all operation conditions with a valve of a simple structure. <P>SOLUTION: An oil separating mechanism is provided in a delivery passage 33. The oil separating mechanism is composed of a separating tube 35 and an oil separating chamber 34. A valve means is provided in an oil supply passage. The valve means is composed of a valve chamber 36, a spool 38 and a spring 39. The valve chamber 36 is divided to a first pressure sensitive chamber S1 communicating to a delivery chamber 26 and a second pressure sensitive chamber S2 communicating to a suction chamber 25. The spool 38 slides in the valve chamber 36 to enlarge opening of the oil supply passage and reduce the same after reaching a full open condition when difference of pressure received from the first pressure sensitive chamber S1 and the second pressure sensitive chamber S2 increases. Consequently, lubricating oil supply quantity to the suction chamber 25 is controlled and the oil supply passage is shut off by the spring 39 during operation stop to secure just enough return oil quantity according to all operation conditions. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
