WAVE ROTOR-BASED MULTI-STAGE REFRIGERATOR

Title:

WAVE ROTOR-BASED MULTI-STAGE REFRIGERATOR

Document Type and Number:

WIPO Patent Application WO/2019/041869

Kind Code:

A1

Abstract:

A wave rotor-based multi-stage refrigerator mainly comprises a housing (20), a left end cap (19), a right end cap (25), a wave rotor (5), a central shaft (28), a high-pressure air feed nozzle, a medium-pressure air discharge nozzle, and a driving mechanism. The structure of the refrigerator enables a pressurized gas to undergo 2-8 non-steady expansions inside the refrigerator, thereby effectively increasing refrigeration efficiency at a large pressure ratio. In the refrigerator, extension of the structure thereof and a change in an end cap structure realize multiple expansions of a gas inside the refrigerator, thereby realizing multi-stage refrigeration by means of the expansions of the gas. Oscillation tubes provided at two ends of the refrigerator enable the refrigerator to operate normally when a moisture content in a working substance is high.

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Inventors:

LIU PEIQI (CN)
HU DAPENG (CN)
GAO CHUHAN (CN)
ZHU CHE (CN)
YU YANG (CN)
WANG ZEWU (CN)
YAN KUN (CN)
FAN HAIGUI (CN)

Application Number:

PCT/CN2018/085286

Publication Date:

March 07, 2019

Filing Date:

May 02, 2018

Export Citation:

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Assignee:

UNIV DALIAN TECH (CN)

International Classes:

F25B9/10; F25B41/40

Foreign References:

CN207247611U	2018-04-17
CN107367084A	2017-11-21
CN101290174A	2008-10-22
CN1171541A	1998-01-28
US5412950A	1995-05-09
CN87101903A	1988-10-12
CN89213744U	1989-07-04
CN90222999U	1990-10-30
CN96115022A	1996-01-12

Other References: