Patent ID: 11933297
Assignee: SANDEN CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 4:
5. A scroll compressor which has a compression mechanism including a fixed scroll and a movable scroll respectively formed at surfaces of mirror plates with spiral laps facing each other, and in which the movable scroll is revolved and turned with respect to the fixed scroll to thereby compress a working fluid in a compression chamber formed between the laps of both scrolls, comprising:
a back pressure chamber formed in a back surface of the mirror plate of the movable scroll;
a back pressure passage which communicates a discharge side of the compression mechanism and the back pressure chamber with each other;
a pressure reducing section provided in the back pressure passage; a mounting hole formed in the mirror plate of the movable scroll and extending from the back pressure chamber to the compression chamber, and
a communication member installed in the mounting hole,
wherein the communication member has a communication section which communicates the back pressure chamber and the compression chamber with each other.