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Heat exchanger

a heat exchanger and heat exchanger technology, applied in indirect heat exchangers, lighting and heating apparatuses, laminated elements, etc., can solve the problems of weak metallic bonding, difficult pressurization of copper powder on the outer circumference face of the tube with a strong force, etc., and achieve the effect of raising the heat transmission performance of the heat exchanger

Inactive Publication Date: 2010-12-16
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]Accordingly, heat transmission perfo

Problems solved by technology

However, the copper powder is difficult to be pressurized onto the outer circumference face of the tube with a strong force, because the copper powder and the adsorbent are pressurized in a longitudinal direction of the tube.
If the pressurizing is insufficient, the metallic bonding may be weak.

Method used

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Experimental program
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Effect test

first embodiment

[0028]A heat exchanger 100 of a first embodiment will be described with reference to FIGS. 1 and 2.

[0029]The heat exchanger 100 is used for exchanging heat between adsorbent contained in a sintered member 120 and heat exchange medium passing through a second passage 190. When water is evaporated into water vapor to be adsorbed by the adsorbent, the heat exchange medium is cooled by latent heat generated by the evaporation. In contrast, when the adsorbent is heated by a high temperature heat exchange medium, the adsorbed water vapor is desorbed from the adsorbent. The water vapor represents first fluid, and may correspond to gas phase medium to be adsorbed. The evaporated water may correspond to liquid phase medium to be adsorbed. The heat exchange medium represents second fluid.

[0030]As shown in FIG. 1, the heat exchanger 100 has a heat exchange portion 101, a casing 130, a lid 131, a communication tube 150, an inlet tube 160 and an outlet tube 170. In the heat exchange portion 101,...

second embodiment

[0059]A heat exchanger 200 of a second embodiment will be described with reference to FIGS. 3 and 4.

[0060]In each subsequent embodiment, the same reference number is given to the same component as the first embodiment, and its explanation is omitted. Points and features different from the first embodiment will be described.

[0061]Heat is exchanged between first fluid and second fluid in the heat exchanger 200. The heat exchanger 200 has a heat exchange portion 201, a communication tube 250, an inlet tube 260 and an outlet tube 270. Heat is exchanged between first fluid and second fluid in the heat exchange portion 201. The tubes 250, 260, 270 are connected to the heat exchange portion 201. First fluid may correspond to water, and the second fluid may correspond to coolant to cool an internal combustion engine (not shown).

[0062]The heat exchange portion 201 is constructed by layering plural adsorption modules 203. The module 203 has a first container 210a and a second container 210b. ...

third embodiment

[0104]A heat exchanger 300 of a third embodiment will be described with reference to FIGS. 6-10.

[0105]The heat exchanger 300 has cross-sections of FIGS. 7 and 8, when the heat exchanger 300 of FIG. 6 is assembled.

[0106]The heat exchanger 300 has a heat exchange portion 301. In the heat exchange portion 301, heat is exchanged between first fluid and second fluid. The first fluid may correspond to water, and the second fluid may correspond to coolant to cool an internal combustion engine (not shown).

[0107]The heat exchange portion 301 is defined by layering plural board members 310a, 310b. As shown in FIGS. 9 and 10, the board member 310a, 310b has a rectangular shape, and is made of metal such as copper. A connecting portion 311a, 311b is formed around all outer periphery of the board member 310a, 310b. As shown in FIG. 7, the connecting portion 311a, 311b extends toward a first end of the layering direction, and has a rectangular tube shape.

[0108]As shown in FIG. 8 indicating inside...

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PUM

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Abstract

A heat exchanger includes board members layered with each other, and a sintered member. A first passage and a second passage are alternately defined between the layered board members. The sintered member adsorbs or desorbs first fluid flowing through the first passage. Second fluid flowing through the second passage has a pressure higher than that of the first fluid. The sintered member is layered on a first face of the board member defining the first passage. The sintered member is pressurized on the first face of the board member in a direction of layering the board members. All outer periphery of the second passage is sealed.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is based on Japanese Patent Application No. 2009-14160.1 filed on Jun. 12, 2009, the disclosure of which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a heat exchanger.[0004]2. Description of Related Art[0005]JP-A-2008-107075 discloses a heat exchanger having adsorbent. The heat exchanger has tubes through which heat exchange medium flows. The tubes are inserted into a cylinder shaped casing of the heat exchanger from an upper opening, and are fixed inside of the casing. The adsorbent mixed with copper powder is applied around the tube from the upper opening, and hardened by pressurizing with a tool from the upper opening. The copper powder is sintered in this state, such that the sintered copper powder and an outer circumference face of the tube are metallically bonded. The adsorbent is fixed inside of the sintered coppe...

Claims

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Application Information

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IPC IPC(8): F28F3/08
CPCF25B37/00F28D5/00F28D9/0006F28D9/0012F28D9/0043Y02A30/278F28F3/046F28F13/003Y02B30/64F28F2255/18F28D9/005Y02A30/27Y02B30/00
Inventor TAKEUCHI, SHINSUKENAGASHIMA, HISAO
Owner DENSO CORP
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