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.

Date of Patent:
Dec. 24, 2002

Filed:

Jul. 23, 2001
Applicant:
Inventors:

Yoshinori Shirakata, Takasago, JP;

Yoichiro Iritani, Takasago, JP;

Koji Hirokawa, Takasago, JP;

Akihiro Kawada, Takasago, JP;

Wataru Seki, Takasago, JP;

Sunao Aoki, Takasago, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 3/902 ; F25B 1/00 ; F25B 3/00 ; F28F 9/02 ;
U.S. Cl.
CPC ...
F25B 3/902 ; F25B 1/00 ; F25B 3/00 ; F28F 9/02 ;
Abstract

In an evaporator composed by providing plural heat-transfer pipes for flowing cold water in a container into which a refrigerant is introduced, the heat-transfer pipes are divided into plural pipe groups and the pipe groups are arranged in a zigzag pattern with intervals between each adjacent pipe groups. Bubbles which are generated around the heat-transfer pipes provided lower position, easily come to the surface of the refrigerant, and further, there are few bubbles which degrade the performance of the heat-transfer pipes positioned around the center of the pipe groups, preventing a fall in the heat transfer coefficient.


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