| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the occurrence of surging at the time of high speed rotation by providing a main body case having a high pressure operation part therein and an external housing having a low pressure operation part therein and providing one or a plurality of bleed grooves on an outer face of a bottom part of the external housing in a pressure adjusting valve of an oscillation plate type compressor. SOLUTION: A pressure regulating valve 30 is provided with a cylindrical main body case 31 and an external housing 32, and a bottom part 32a of the external housing 32 is brought into contact with an inner end face of a part 16a of a cylinder block 2 by a spring 17. A valve hole 32c is drilled at the center of the bottom part 32a, and a plurality of open holes 32d are drilled in a peripheral side part 32e of a cylindrical part which is close to the bottom part 32a. Moreover, V-shaped bleed grooves 71 are radially formed at an equal interval on an outer face of the bottom part 32a. Consequently, even when the bottom part 32a comes into contact with the inner end face of the part 16a of the cylinder block 2, refrigerant gas in a crank chamber flows into a storage chamber 16 through the bleed grooves 71 to prevent the occurrence of surging due to the vibration caused by unstable angular pressure in the crank chamber.</p> |
