Title:
CIRCUMFERENTIAL HELICAL WATER GROOVE COOLING APPARATUS FOR ENHANCING HEAT TRANSFER OF GEARBOX
Document Type and Number:
WIPO Patent Application WO/2023/004836
Kind Code:
A1
Abstract:
A circumferential helical water groove cooling apparatus used for enhancing the heat transfer of a gearbox, comprising a cylindrical outer casing (1). A water inlet (11) and a water outlet (12) are provided on the surface of the outer casing (1), and an inner casing (2) of the gearbox is arranged inside the outer casing (1). The outer surface of the inner casing (2) of the gearbox is fitted with the inner surface of the outer casing (1), and the outer surface of the inner casing (2) of the gearbox is provided with helical fins (24) along the extending direction of the inner casing (2) of the gearbox. The space between adjacent fins (24) is a water groove (21), and the water groove (21) communicates with the water inlet (11) and the water outlet (12). A turbulent flow structure (22) is arranged in the water groove (21) on the side close to the water outlet (12). The cooling apparatus may greatly increase the heat exchange area by means of providing a circumferential helical water groove. In addition, the turbulent flow structure arranged in the water groove may destroy a heat transfer boundary layer, and effectively strengthen a turbulent flow in a channel, so that the cooling water temperature is also distributed evenly, and a convective heat transfer coefficient is greatly improved.
Inventors:
LOU PEIHUANG (CN)
DAI LIXIN (CN)
QIAN XIAOMING (CN)
QIAN RUI (CN)
SOGN KAI (CN)
SONG YUNHUI (CN)
MA RUN (CN)
MA JIANJUN (CN)
ZHANG YING (CN)
DAI LIXIN (CN)
QIAN XIAOMING (CN)
QIAN RUI (CN)
SOGN KAI (CN)
SONG YUNHUI (CN)
MA RUN (CN)
MA JIANJUN (CN)
ZHANG YING (CN)
Application Number:
PCT/CN2021/110007
Publication Date:
February 02, 2023
Filing Date:
August 02, 2021
Export Citation:
Assignee:
UNIV NANJING AERONAUTICS & ASTRONAUTICS (CN)
SHANGHAI ZHENHUA HEAVY INDUSTRIES NANTONG TRANS MACHINERY CO LTD (CN)
SUZHOU RES INSTITUTE OF NUAA (CN)
SHANGHAI ZHENHUA HEAVY INDUSTRIES NANTONG TRANS MACHINERY CO LTD (CN)
SUZHOU RES INSTITUTE OF NUAA (CN)
International Classes:
F16H57/04
Foreign References:
| CN205791955U | 2016-12-07 | |||
| TW200826437A | 2008-06-16 | |||
| CN208254284U | 2018-12-18 | |||
| CN106062394A | 2016-10-26 | |||
| JP2002205531A | 2002-07-23 | |||
| CN106402359A | 2017-02-15 | |||
| US20090127946A1 | 2009-05-21 |
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