Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2021/131005
Kind Code:
A1
Abstract:
Provided is a heat exchanger comprising a structure that is advantageous in increasing the overall heat transfer coefficient which represents the efficiency of heat exchange. Three flow paths, a first flow path 11, a second flow path 21, and a third flow path 31, which turn spirally in the space formed between an inner cylinder 61 and an outer cylinder 52 are provided. These flow paths are defined by an inner heat transfer body 41 and an outer heat transfer body 51, and heat exchange is performed through the heat transfer bodies. The heat transfer bodies turn spirally, have a screw shape in an axial cross-sectional view, and are assembled into a screw shape. The flow path area of the first flow path 11 is varied by changing the shapes of a male thread and a female thread, and the second flow path 21 and the third flow path 31 are formed in a spiral shape, allowing for exchange of heat through the heat transfer bodies.
Inventors:
ENOMURA MASAKAZU (JP)
Application Number:
PCT/JP2019/051334
Publication Date:
July 01, 2021
Filing Date:
December 26, 2019
Export Citation:
Assignee:
M TECHNIQUE CO LTD (JP)
International Classes:
F28D9/00; F28D9/02; F28F3/08
Foreign References:
| US2993682A | 1961-07-25 | |||
| US2456775A | 1948-12-21 | |||
| JP2008134003A | 2008-06-12 | |||
| JP2000346569A | 2000-12-15 | |||
| JP2008292107A | 2008-12-04 | |||
| JPS5322647A | 1978-03-02 | |||
| JP2012529626A | 2011-08-19 | |||
| JP2013024536A | 2013-02-04 | |||
| JP2015081716A | 2015-04-27 | |||
| JP2015502842A | 2014-02-07 |
Other References:
See also references of EP 4083559A4
Attorney, Agent or Firm:
SAMEJIMA Takenobu (JP)
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