HEAT EXCHANGER - DAIKIN IND LTD

Title:

HEAT EXCHANGER

Document Type and Number:

WIPO Patent Application WO/2017/179553

Kind Code:

A1

Abstract:

Provided is a heat exchanger wherein performance degradation can be suppressed. A heat exchanger (21) performs heat exchange between a refrigerant in heat transfer tubes (50) and air flow (AF) passing through a heat exchanging space (SP) formed by adjacent heat transfer tubes (50) and adjacent heat transfer fins (60). Each heat transfer fin (60) has a plurality of projections (70) that are aligned in the air flow direction (dr1) in each heat exchanging space (SP). The plurality of projections (70) includes a fifth projection (75) that is positioned on the downstream side and projections (80) on one end that are positioned on the upstream side. In the air flow direction view (v1), the ratio of the area of the fifth projection (75) to a reference area (A2) (the area of a reference rectangle (R1) in the air flow direction view (v1) where the portion positioned between the edge (70a) of a projection (80) on one end of a fin front side face (611) and a main face (52) of the heat transfer tube (50) closest to the edge (70a) serves as a first side (L1) and a fin pitch (P1) serves as a second side (L2)) in each heat exchanging space (SP) is no less than 0.2.

Inventors:

NAGANO TOMOHIRO
MATSUMOTO YOSHIYUKI
YOSHIOKA SHUN
INOUE SATOSHI
KAMADA TOSHIMITSU
AGOU SHOUTA
KITAYAMA CHIHO

Application Number:

PCT/JP2017/014729

Publication Date:

October 19, 2017

Filing Date:

April 10, 2017

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)

International Classes:

F28F1/32; F28D1/053

Foreign References:

JP2015132468A	2015-07-23
JP2012233680A	2012-11-29
JP2015031484A	2015-02-16
JP2003090691A	2003-03-28
DE102012002234A1	2013-08-08

Other References: