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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11262107 B1

PDFFull Text
Date of Patent:
Mar. 01, 2022

Filed:

Mar. 05, 2018

Heat exchanger having first and second heat exchange units with different refrigerant flow resistances and refrigeration apparatus

Applicant:

Daikin Industries, Ltd., Osaka, JP;

Inventors:

Shun Yoshioka, Osaka, JP;

Yoshiyuki Matsumoto, Osaka, JP;

Shouta Agou, Osaka, JP;

Assignee:

Daikin Industries, Ltd., Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Jonathan Bradford

Int. Cl.
CPC ...
F25B 39/00 (2006.01); F25B 13/00 (2006.01); F24F 11/84 (2018.01); F25B 41/39 (2021.01); F28D 1/02 (2006.01); F28D 1/04 (2006.01); F28F 1/32 (2006.01); F25B 49/02 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
F25B 13/00 (2013.01); F24F 11/84 (2018.01); F25B 39/00 (2013.01); F25B 41/39 (2021.01); F25B 49/02 (2013.01); F28D 1/024 (2013.01); F28D 1/0426 (2013.01); F28F 1/325 (2013.01); F25B 2313/0233 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/21162 (2013.01); F25B 2700/21163 (2013.01); F25B 2700/21174 (2013.01); F25B 2700/21175 (2013.01); F28D 2021/0061 (2013.01);
Abstract

To improve the heat exchange efficiency of a heat exchanger that includes an upstream heat exchange unit and a downstream heat exchange unit. When the heat exchanger functions as an evaporator, a gas outlet pipe is an upstream refrigerant outlet that is located adjacent to the other end of upstream flat pipes of the upstream heat exchange unit, and a gas outlet pipe is a downstream refrigerant outlet that is located adjacent to the other end of downstream flat pipes of the downstream heat exchange unit. First resistance to refrigerant flow in the upstream heat exchange unit and second resistance to refrigerant flow in the downstream heat exchange unit are adjusted in order that the degree of superheating of refrigerant at the downstream refrigerant outlet is smaller than the degree of superheating of refrigerant at the upstream refrigerant outlet.

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