Title:
SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2023/149145
Kind Code:
A1
Abstract:
Provided is a scroll compressor in which the swinging of an orbiting scroll can be suppressed and the power loss can be suppressed. The scroll compressor comprises a fixed scroll 11 having a spiral wrap 16, an orbiting scroll 12 having a spiral wrap 20, a drive shaft 13 that causes the orbiting scroll 12 to revolve with respect to the fixed scroll 11, a plurality of compression chambers formed between the wrap 20 of the orbiting scroll 12 and the wrap 16 of the fixed scroll 11, a back pressure chamber 28 formed on the back surface side of the orbiting scroll 12, and a communication hole 29 formed in the orbiting scroll 12 such that the back pressure chamber 28 and the compression chamber communicate with each other therethrough. The back pressure chamber 28 communicates with the compression chamber during a discharge process via the communication hole 29 when the crank angle of the drive shaft 13 is within a first range and communicates with the compression chamber during a compression process via the communication hole 29 when the crank angle of the drive shaft 13 is within a second range.
Inventors:
KOYAMA MASAKI (JP)
IIJIMA RYOTA (JP)
SADAKATA KOSUKE (JP)
IIJIMA RYOTA (JP)
SADAKATA KOSUKE (JP)
Application Number:
PCT/JP2022/048422
Publication Date:
August 10, 2023
Filing Date:
December 27, 2022
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
F04C18/02
Foreign References:
| JP2011052603A | 2011-03-17 | |||
| JPH08121366A | 1996-05-14 | |||
| JPS63106388A | 1988-05-11 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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