Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2024/029566
Kind Code:
A1
Abstract:
This rotary compressor comprises: a rotating axle that can rotate about an axis; a cylinder having formed therein a compression chamber that compresses a refrigerant as the rotating axle rotates; a bearing unit that is provided to the cylinder, and that can rotatably support the rotating axle; and an injection unit that is formed in the bearing unit, and that can supply the refrigerant into the compression chamber. The injection unit comprises: a port that allows a refrigerant supplied from the outside to flow therein; an intermediate pressure chamber which extends in the circumferential direction of the rotating axle, and into which the refrigerant is guided from the port; a check valve that is provided in the intermediate pressure chamber, and that prevents the refrigerant in the intermediate pressure chamber from flowing backwards to the port; and a plurality of injection openings that connect the intermediate pressure chamber and the compression chamber.
Inventors:
UNO MASANARI (JP)
SHIMAYA HIROFUMI (JP)
FUJIWARA TAKURO (JP)
ARAKI YUTO (JP)
YAMASHITA TAKUMA (JP)
OKADA YOSHIYUKI (JP)
SHIMAYA HIROFUMI (JP)
FUJIWARA TAKURO (JP)
ARAKI YUTO (JP)
YAMASHITA TAKUMA (JP)
OKADA YOSHIYUKI (JP)
Application Number:
PCT/JP2023/028286
Publication Date:
February 08, 2024
Filing Date:
August 02, 2023
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
F04C29/04; F04C18/356; F04C29/00; F04C29/12
Domestic Patent References:
| WO2019202976A1 | 2019-10-24 | |||
| WO2019049226A1 | 2019-03-14 |
Foreign References:
| JPH10259788A | 1998-09-29 | |||
| JP2020133407A | 2020-08-31 | |||
| JP2015129467A | 2015-07-16 | |||
| JP2019167839A | 2019-10-03 | |||
| JPH10281090A | 1998-10-20 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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