HEAT EXCHANGER AND REFRIGERATING CYCLE SYSTEM

Japanese Patent JP3866905

B2

PROBLEM TO BE SOLVED: To solve a problem of lowering an efficiency of heat exchanging a refrigerant with air due to heat exchanging a high temperature overheated gas refrigerant with a low temperature supercooled liquid refrigerant in a microtube multiple-flow heat exchanger.
SOLUTION: In the heat exchanger, a plurality of heat transfer tubes each having a through hole are aligned in parallel in a lengthwise direction, both ends of the tubes are connected by a pair of header pipes, at least one of the header pipes is divided into a plurality in an air flowing direction, a refrigerant inlet is connected to a downstream side of the air of the header pipe, a refrigerant outlet is connected to an upstream side of the air of the header pipe, a heat transfer resistance between the downstream side and the upstream side of the air of the header pipe or/and a heat transfer resistance between the upstream side and the downstream side of the air of the header pipe connected with the outlet is increased, and a heat transfer resistance of the air of the tube in the flowing direction near at least the inlet or/and the outlet or a heat transfer resistance of the air of the fin provided between the heat transfer tubes in the flowing direction is increased.

Shozo Funakura
Noriho Okaza
Fumitoshi Nishiwaki
Mitsuharu Matsuo

JP2000159523A

January 10, 2007

May 30, 2000

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Matsushita Electric Industrial Co., Ltd

F28F3/06; F28F9/26; F28D1/053; F28F1/02; F28F3/08; F28F3/14; F28F9/02; (IPC1-7): F28F9/26; F28D1/053; F28F3/06; F28F3/08; F28F3/14; F28F9/02

JP10288476A
JP4121595A
JP11173784A
JP9126591A
JP58127090A
JP4063984U
JP54153457U

Masamichi Matsuda

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