Title:
HELICOPTER MULTI-CABIN TWO-MODE AIR CONDITIONING SYSTEM EMPLOYING COMPRESSOR INTERMEDIATE AIR SUPPLEMENTATION TECHNOLOGY
Document Type and Number:
WIPO Patent Application WO/2021/073186
Kind Code:
A1
Abstract:
A helicopter multi-cabin two-mode air conditioning system employing compressor intermediate air supplementation technology comprises a four-way reversing valve (1), a compressor (2), a first air-cooled heat exchanger (3), a first fan (4), a plate heat exchanger (5), a lubricating oil pump (6), a first control valve (7), a first throttle (8), a second air-cooled heat exchanger (9), a second fan (10), a second control valve (11), a third control valve (12), a second throttle (13), a fourth control valve (14), a third air-cooled heat exchanger (15), a third fan (16), an electric air compressor (17), and an exhaust valve (18). The electric air compressor (17), the exhaust valve (18), and a cabin pressure regulator form a cabin pressurization system that does not use an engine to draw in air. In a cooling mode, the third air-cooled heat exchanger (15) is an evaporator, the second air-cooled heat exchanger (9) is an evaporator, and the first air-cooled heat exchanger (3) is a condenser. In a heating mode, the third air-cooled heat exchanger (15) is a condenser, and the first air-cooled heat exchanger (3) is an evaporator. Heat sources available for the air conditioning system comprise: external air, heat dissipated from an electronic device, and heat from lubricating oil. The compressor intermediate air supplementation and high-temperature cooling technology is used to reduce the temperature of compressor exhaust gas, thereby ensuring that an environment control system operates effectively in various weather and various operation conditions.
Inventors:
FENG SHIYU (CN)
PENG XIAOTIAN (CN)
GAO XIUFENG (CN)
PENG XIAOTIAN (CN)
GAO XIUFENG (CN)
Application Number:
PCT/CN2020/103171
Publication Date:
April 22, 2021
Filing Date:
July 21, 2020
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
International Classes:
B64D13/06
Foreign References:
| CN110920902A | 2020-03-27 | |||
| CN109367791A | 2019-02-22 | |||
| CN101148197A | 2008-03-26 | |||
| EP0301607A1 | 1989-02-01 | |||
| CN207299601U | 2018-05-01 | |||
| EP3466816A1 | 2019-04-10 | |||
| CN103010466A | 2013-04-03 |
Other References:
LI, RIHUA: "Study on Influence on Screw Chiller Performance Through Compensating Vapor in the Course of Compression", ELECTRICAL APPLIANCES, 1 August 2015 (2015-08-01), pages 71 - 73+87, XP055801223, [retrieved on 20210504]
CHAO HUANG, ZHIMIN HUA WU: "Performance Characteristics of Scroll Refrigeration Compressor Through Compensating Vapor in the Course of Compression", FLUID MACHINERY, vol. 30, no. 04, 1 April 2002 (2002-04-01), pages 11 - 13+7, XP055801227
CHAO HUANG, ZHIMIN HUA WU: "Performance Characteristics of Scroll Refrigeration Compressor Through Compensating Vapor in the Course of Compression", FLUID MACHINERY, vol. 30, no. 04, 1 April 2002 (2002-04-01), pages 11 - 13+7, XP055801227
Attorney, Agent or Firm:
FANG & ASSOCIATES (CN)
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