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Patent Searching and Data


Title:
SCREW COMPRESSOR, AIR CONDITIONING DEVICE AND REFRIGERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/196427
Kind Code:
A1
Abstract:
Disclosed are a screw compressor, and an air conditioning device and a refrigerating device comprising the screw compressor, wherein the screw compressor comprises a compressor body (10); a supplementary air channel is arranged on the compressor body (10); and the supplementary air channel is provided with at least two supplementary air holes (201) in communication with a compression cavity. In the screw compressor, at least two supplementary air holes (201) are provided, and under the condition where there is limited space for arranging the supplementary air holes (201) on the compressor body, the diameter of each supplementary air hole (201) is relatively small. Providing a relatively large number of supplementary air holes (201) and providing same with relatively small diameters are beneficial for reducing airflow pulsations, so as to reduce noise during an air supplementation process.

Inventors:
ZHANG TIANYI (CN)
LIU HUA (CN)
ZHANG BAOGE (CN)
LI RIHUA (CN)
ZHANG HELONG (CN)
XU YUNGONG (CN)
Application Number:
CN2017/119427
Publication Date:
November 01, 2018
Filing Date:
December 28, 2017
Export Citation:
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Assignee:
GREE ELECTRIC APPLIANCES WUHAN CO LTD (CN)
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F04C29/12; F04C18/16; F04C29/06
Foreign References:
CN106979160A2017-07-25
CN101979880A2011-02-23
CN87101649A1987-09-16
CN205013302U2016-02-03
CN205858689U2017-01-04
EP0389036A11990-09-26
CN1450267A2003-10-22
CN202851353U2013-04-03
Other References:
See also references of EP 3617516A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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