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Patent Searching and Data


Title:
JOINT
Document Type and Number:
WIPO Patent Application WO/2020/022443
Kind Code:
A1
Abstract:
For a joint connecting a multi-holed flat tube and a circular pipe, a problem may occur in which oil accumulates in the vicinity of a connection portion. In a refrigeration device that uses carbon dioxide as a refrigerant, for which oil is of high importance, this can be a significant problem. Provided is a joint (34) equipped with a first connection section (301) covering the outside of an end portion of a multi-holed flat tube (300), and a main body section (302) that continues from the first connection section (301), wherein the inner diameter (L302) of the main body section (302) in the longitudinal direction is greater than the inner diameter (L301) of the first connection section (301) in the longitudinal direction. The longitudinal direction is the thickness direction of the multi-holed flat tube (300) (thickness T, width W, W>T).

Inventors:
YOSHIOKA SHUN
MATSUMOTO YOSHIYUKI
HIROKAWA TOMOKI
Application Number:
PCT/JP2019/029250
Publication Date:
January 30, 2020
Filing Date:
July 25, 2019
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F28F9/26; F24F1/18; F25B1/00; F25B39/00; F25B41/00
Domestic Patent References:
WO2014199514A12014-12-18
Foreign References:
JP2010185614A2010-08-26
JP2011127831A2011-06-30
JP2016038141A2016-03-22
Other References:
See also references of EP 3828490A4
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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