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Patent Searching and Data


Title:
HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2017/208558
Kind Code:
A1
Abstract:
A heat exchanger comprising an inlet header, an outlet header, and a plurality of heat transfer tubes disposed between these headers, wherein the interior of a heat transfer tube is a channel for refrigerant, the bottom of the heat transfer tube is disposed inside the inlet header, and the heat transfer tube that is inside the inlet header is provided with a through-hole so that gas refrigerant can flow inside the heat transfer tube. In this manner, a heat exchanger having a plurality of heat transfer tubes can make the gas-liquid ratio uniform for the refrigerant to be supplied and distributed to each heat transfer tube and can improve heat transfer properties by forming a two-phase flow at the heat transfer tube inlet.

Inventors:
MATSUDA KAZUYA (JP)
ISHII EIJI (JP)
Application Number:
JP2017/009897
Publication Date:
December 07, 2017
Filing Date:
March 13, 2017
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
F28F9/02; F25B39/02; F25B43/00; F28D1/053; F28F9/22
Foreign References:
JP2005172373A2005-06-30
JP2009133567A2009-06-18
JPH10267468A1998-10-09
JP2016038115A2016-03-22
JP2014070860A2014-04-21
JP2005299989A2005-10-27
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
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