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Patent Searching and Data


Title:
COMPRESSION MECHANISM AND SCROLL COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2021/203639
Kind Code:
A1
Abstract:
Disclosed are a compression mechanism and a scroll compressor. The compression mechanism comprises a movable scroll (50) and a stationary scroll (40), wherein the movable scroll (50) comprises a movable scroll end plate (54) and a movable scroll blade (52), and the stationary scroll (40) comprises a stationary scroll end plate (44) and a stationary scroll blade (42) formed on a first side of the stationary scroll end plate (44). During the operation of the compression mechanism, the stationary scroll (40) and the movable scroll (50) cooperate to form, between the stationary scroll and the movable scroll, a series of fluid cavities comprising a central compression cavity (C1), an air suction cavity (C0), and middle compression cavities (C2, C3) located between the central compression cavity (C1) and the air suction cavity (C0). An exhaust communication space is provided in a second side of the stationary scroll end plate (44). A pressure relief port (47) selectively communicating at least one of the middle compression cavities (C2, C3) with the exhaust communication space is provided in the stationary scroll end plate (44). An exhaust channel (141) in communication with the pressure relief port (47) is provided in an end plate surface of the first side of the fixed scroll end plate (44), and the pressure relief port (47) can be in fluid communication with the at least one middle compression cavity (C2, C3) via the exhaust channel (141), such that the pressure of the fluid discharged from the pressure relief port (47) is reduced as much as possible, thereby relieving or avoiding the phenomenon of over-compression and improving system efficiency.

Inventors:
LIANG JI (CN)
ZHAO PING (CN)
XU MEILING (CN)
QIAN YUAN (CN)
Application Number:
PCT/CN2020/118017
Publication Date:
October 14, 2021
Filing Date:
September 27, 2020
Export Citation:
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Assignee:
EMERSON CLIMATE TECH SUZHOU CO LTD (CN)
International Classes:
F04C18/02; F04C29/00; F04C29/02
Foreign References:
CN103362802A2013-10-23
CN107893757A2018-04-10
CN107489614A2017-12-19
CN205401109U2016-07-27
EP2549109A22013-01-23
US5340292A1994-08-23
US20180073505A12018-03-15
JPH09119389A1997-05-06
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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