Title:
ROTARY COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2022/092290
Kind Code:
A1
Abstract:
A joint pipe (43) is fixed to a casing (11). A suction pipe (40) is disposed inside the joint pipe (43) and communicates with a suction inlet port (56) of a compressing mechanism (50). The suction pipe (40) comprises: a large diameter portion (41) which is formed on the inflow side of the suction pipe (40), and which is fixed to the inner circumferential surface of the joint pipe (43); and a small diameter portion (42) which is formed on the outflow side of the suction pipe (40), and which has a smaller outer diameter than the large diameter portion (41). The joint pipe (43) is made of an iron-based material. A gap (S1) is formed between the outer circumferential surface of the small diameter portion (42) of the suction pipe (40) and the inner circumferential surface of the joint pipe (43).
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Inventors:
KAMEI SHOUTA (JP)
Application Number:
PCT/JP2021/040122
Publication Date:
May 05, 2022
Filing Date:
October 29, 2021
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04C29/12; F04B39/12
Domestic Patent References:
| WO2016039042A1 | 2016-03-17 | |||
| WO2017130916A1 | 2017-08-03 |
Foreign References:
| JP2011196297A | 2011-10-06 | |||
| JP2009062876A | 2009-03-26 | |||
| JP2012251445A | 2012-12-20 | |||
| JP2001263282A | 2001-09-26 | |||
| JPH07167059A | 1995-07-04 | |||
| JP2020070748A | 2020-05-07 |
Other References:
See also references of EP 4206469A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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