Title:
AIR SUPPLY AND RETURN SYSTEM, CARRIAGE AND RAIL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2024/067459
Kind Code:
A1
Abstract:
An air supply and return system, a carriage and a rail vehicle. The air supply and return system comprises an air conditioning unit (4) and an air duct (500), wherein the air duct (500) comprises an air supply duct (510), a shared air duct (520) for air return and exhaust, and an air return pipeline (44); the air supply duct (510) is connected to a unit air supply port (42) of the air conditioning unit (4), and the bottom of the air supply duct (510) is provided with an air supply port; the shared air duct (520) for air return and exhaust is connected to a unit air return port (41) and a unit waste air exhaust port (43) of the air conditioning unit (4), and is arranged side by side with the air supply duct (510); and the air return pipeline (44) is connected to the shared air duct (520) for air return and exhaust, the lower end of the air return pipeline (44) is provided with an air return port (440), and the air return port (440) is configured to extend, along a side wall of the carriage, to the position below a seat in the carriage. The air return port (440) is arranged at the position of the bottom of the side wall of the carriage that is close to the floor, such that air discharged from the roof of the carriage is fully mixed with air in the carriage and then enters the shared air duct (520) for air return and exhaust; and the shared air duct (520) for air return and exhaust and the air return pipeline (44) block noise of the air conditioning unit from directly entering the carriage, thereby reducing the impact of the noise of the air conditioning unit on passengers in the carriage.
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Inventors:
LIU XIAOLIANG (CN)
ZHAO SAI (CN)
REN CONGMEI (CN)
ZHANG SHICHEN (CN)
WANG XUEFENG (CN)
RUN GUANGSHENG (CN)
ZHAO SAI (CN)
REN CONGMEI (CN)
ZHANG SHICHEN (CN)
WANG XUEFENG (CN)
RUN GUANGSHENG (CN)
Application Number:
PCT/CN2023/121001
Publication Date:
April 04, 2024
Filing Date:
September 25, 2023
Export Citation:
Assignee:
CRRC TANGSHAN CO LTD (CN)
International Classes:
B61D27/00
Foreign References:
| CN115556784A | 2023-01-03 | |||
| CN214450955U | 2021-10-22 | |||
| CN103158730A | 2013-06-19 | |||
| CN103434522A | 2013-12-11 | |||
| CN206297560U | 2017-07-04 | |||
| CN209795481U | 2019-12-17 | |||
| CN213228637U | 2021-05-18 | |||
| CN216943064U | 2022-07-12 | |||
| JP2004106709A | 2004-04-08 |
Attorney, Agent or Firm:
IPFUTURE INTELLECTUAL PROPERTY OFFICE (CN)
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