| 摘要 |
<P>PROBLEM TO BE SOLVED: To stably supply lubricating oil to the inside of a working chamber and a sliding part such as a vane side face and a leading edge irrespective of pressure conditions during operation. <P>SOLUTION: An oil suction hole 6a for sucking the lubricating oil reserved on the bottom of a sealed container by rotation of a shaft 6 is provided on an axis of the shaft which transmits motive force to a compression element 11. In addition, an oil feed hole 6b passing through the inside and the outside of the shaft is provided in the vicinity of at least one of end surfaces of a roller 7 on the shaft 6. An oil feed groove 10 is provided to communicate with the oil feed hole 6b on an end surface which closes a cylinder 5 on at least one of bearings. A vane oil feed groove 8a is provided on the vane 8 to communicate with the oil feed groove with a predetermined rotation phase and to communicate with a compression chamber with a rotation phase wherein the vane 8 more protrudes from a vane groove 7a toward the periphery of the roller on one of sliding faces with the vane groove 7a. <P>COPYRIGHT: (C)2012,JPO&INPIT |
