Title:
REFRIGERANT COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2023/176596
Kind Code:
A1
Abstract:
A refrigerant compressor according to the present invention compresses a refrigerant circulating in a refrigerant circulation system. The refrigerant compressor comprises: a rotary body having a shaft and a protruding portion which radially protrudes from the shaft and rotates together with the shaft; a non-contact-type bearing unit that rotatably supports the rotary body; a housing having an internal space in which the protruding portion is received; a suction port which opens to the internal space and through which the refrigerant is supplied into the internal space; a refrigerant flow path which communicates with the suction port and which is connected to an evaporator; an ejection port through which the refrigerant is discharged from the internal space; and a recirculation path that causes the internal space and the evaporator to communicate with each other through a recirculation port provided in the internal space. The recirculation port is positioned vertically lower than the protruding portion.
Inventors:
TANAKA RYUUTA (JP)
NAKAJIMA MASAHIRO (JP)
KOBAYASHI HIROKI (JP)
AKAMATSU YOSUKE (JP)
YOSHINAGA SEIICHIRO (JP)
NAKAJIMA MASAHIRO (JP)
KOBAYASHI HIROKI (JP)
AKAMATSU YOSUKE (JP)
YOSHINAGA SEIICHIRO (JP)
Application Number:
PCT/JP2023/008623
Publication Date:
September 21, 2023
Filing Date:
March 07, 2023
Export Citation:
Assignee:
IHI CORP (JP)
International Classes:
F04B39/12; F04C29/12; F04D17/12; F04D29/058
Foreign References:
| JPH11230098A | 1999-08-24 | |||
| JP2016033348A | 2016-03-10 | |||
| JP2000240596A | 2000-09-05 | |||
| JPH0319498U | 1991-02-26 | |||
| US20210285691A1 | 2021-09-16 | |||
| JP2018119728A | 2018-08-02 | |||
| JPH08509802A | 1996-10-15 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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