Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2022/208733
Kind Code:
A1
Abstract:
This heat exchanger comprises a plurality of heat transfer tubes and a header. The header has a main body part that is cylindrically formed and a partition plate that divides the internal space of the main body part in the pipe axis direction of the header. The main body part has a pair of insertion parts that form through-holes and engage with the partition plate. The partition plate has a wall part that constitutes a wall which divides the internal space in the pipe axis direction and a pair of side plate parts that protrude from both side surfaces of the wall part and that are inserted into the pair of insertion parts. The pair of side plate parts have respective plate tip end parts that are the tip end parts in a protrusion direction and that close the through-holes when the plate tip end parts are inserted into the pair of insertion parts. The plate tip end parts do not protrude out of the main body part from the respective insertion parts when the main body part and the partition plate are joined. The plate tip end parts are deformed such that the walls of the plate tip end parts are pushed and spread in a direction parallel to the pipe axis direction so that the end surface thereof forms a V-shaped groove. The plate tip end parts engage with the respective internal walls of the pair of insertion parts inside the respective through-holes formed by the pair of insertion parts.
Inventors:
NAKAMURA MASASHI (JP)
KAWABATA RYOHEI (JP)
CHIKU NAOKI (JP)
OKADA MASAKI (JP)
KAWABATA RYOHEI (JP)
CHIKU NAOKI (JP)
OKADA MASAKI (JP)
Application Number:
PCT/JP2021/013858
Publication Date:
October 06, 2022
Filing Date:
March 31, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F28F9/02
Domestic Patent References:
| WO2003102486A1 | 2003-12-11 |
Foreign References:
| US5236044A | 1993-08-17 | |||
| JP2000304488A | 2000-11-02 | |||
| US5297624A | 1994-03-29 | |||
| JP2003004394A | 2003-01-08 | |||
| JP2015200497A | 2015-11-12 | |||
| JP2017505421A | 2017-02-16 | |||
| JPH11182977A | 1999-07-06 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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