Title:
SCREW COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/203642
Kind Code:
A1
Abstract:
This screw compressor is provided with a casing, a screw rotor that rotates inside the casing and that has a plurality of screw grooves in the outer peripheral surface, and one gate rotor that has teeth which engage with the screw grooves of the screw rotor and that rotates along with the rotation of the screw rotor. A compression chamber is configured in a space enclosed by a part of the casing, the screw grooves, and the gate rotor, and the part of the casing has a cooling flow channel that guides a refrigerant from the exterior to the compression chamber. The cooling flow channel is enlarged in the middle of the flow channel, and a cooling part is configured where the enlarged flow channel portion is filled with the refrigerant.
Inventors:
ITO TAKESHI (JP)
Application Number:
PCT/JP2016/065499
Publication Date:
November 30, 2017
Filing Date:
May 25, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F04C18/52; F25B1/00
Foreign References:
| JP2012197746A | 2012-10-18 | |||
| JP2009002257A | 2009-01-08 | |||
| JP2010249047A | 2010-11-04 | |||
| JP2005083609A | 2005-03-31 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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