AIR INJECTION ENTHALPY-INCREASING SCROLL COMPRESSOR AND REFRIGERATION SYSTEM - GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD

Title:

AIR INJECTION ENTHALPY-INCREASING SCROLL COMPRESSOR AND REFRIGERATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2018/094914

Kind Code:

A1

Abstract:

Provided are an air injection enthalpy-increasing scroll compressor, and a refrigeration system comprising the air injection enthalpy-increasing scroll compressor. The air injection enthalpy-increasing scroll compressor comprises a compressor housing, a main frame (13), a movable scroll plate (12) and a stationary scroll plate (11). The movable scroll plate (12) is arranged on the main frame (13). The movable scroll plate (12) comprises a movable plate end plate (121) and a movable scroll tooth (122) arranged on a side end face, away from the main frame (13), of the movable plate end plate (121), with a back pressure chamber being defined between the movable plate end plate (121) and the main frame (13). The stationary scroll plate (11) is arranged on one side, away from the main frame (13), of the movable scroll plate (12). The stationary scroll plate (11) comprises a stationary plate end plate (111) and a stationary scroll tooth (112) arranged on a side end face, close to the main frame (13), of the stationary plate end plate (111). The stationary scroll tooth (112) and the movable scroll tooth (122) are engaged with each other to form a crescent-shaped compression cavity. At least one of the movable scroll plate (12) and the stationary scroll plate (11) is provided with medium pressure passages (30, 40), and during the rotation of the movable scroll plate (12), the medium pressure passages (30, 40) are suitable for communicating the compression cavity with the back pressure chamber. The air injection enthalpy-increasing scroll compressor can inhibit the overturning of the moving scroll plate (12) during operation, thereby improving the performance of the air injection enthalpy-increasing scroll compressor.

More Like This:

JPH08200248

SCROLL TYPE COMPRESSOR

Inventors:

LIANG WEIHENG (CN)
HUANG BAIYING (CN)
AIBA OSAMU (CN)
ZHANG KANG (CN)
CHEN HONGHUI (CN)

Application Number:

PCT/CN2017/076595

Publication Date:

May 31, 2018

Filing Date:

March 14, 2017

Export Citation:

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Assignee:

GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD (CN)
MIDEA GROUP CO LTD (CN)

International Classes:

F04C18/02

Foreign References:

CN106368946A	2017-02-01
CN106122010A	2016-11-16
CN103244411A	2013-08-14
CN105822546A	2016-08-03
JP2003097457A	2003-04-03
JPH09177683A	1997-07-11
EP0469700A1	1992-02-05

Other References: