Heat exchanger and refrigeration cycle apparatus

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United States of America Patent

PATENT NO 11965701
APP PUB NO 20220228818A1
SERIAL NO

17615199

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a heat exchanger, an outer diameter of a plurality of heat transfer pipes is defined as Do, a wall thickness is defined as tP, an area represented by a numerical expression of a row pitch L1×a step pitch L2 is defined as A, and an area represented by a numerical expression of ((Do−2×tP)/2)2×π is defined as B, a relation of Do<5.5 mm, a relation of (0.2076×tP2−0.1480×tP+0.0545)×Do{circumflex over ( )}(−0.0021×tP2−0.0528×tP+0.0164)≤B/A≤(0.0219×tP2−0.0185×tP+0.0043)×ln (Do)+(1.6950×tP2+1.8455×tP+1.5416), and a relation of B/A<0.0076×tP2−0.0417×tP+0.0574 are satisfied.

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Patent Owner(s)

  • MITSUBISHI ELECTRIC CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishibashi, Akira Tokyo, JP 189 2094
Maeda, Tsuyoshi Tokyo, JP 257 2734
Morita, Atsushi Tokyo, JP 50 310
Nakamura, Shin Tokyo, JP 163 1035
Yatsuyanagi, Akira Tokyo, JP 23 8

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