Adsorption core and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10591189-B2
Application number	US-201415039069-A
Country	US
Kind code	B2
Filing date	Nov 28, 2014
Priority date	Nov 29, 2013
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

An adsorption core has (i) a heat medium tube in which a heat medium flows and (ii) an adsorption agent that adsorbs a fluid in a vapor phase outside of the heat medium tube when being cooled by the heat medium and desorbs the absorbed fluid when being heated. The heat medium tube has (i) a core member that is made of metal having a higher hardness with respect to copper and (ii) a covering layer that is made of copper and covers an outer surface of the core member. A sintered body of a copper powder and the adsorption agent is provided in a peripheral portion of the heat medium tube. The copper powder and the heat medium tube are metallically coupled with each other. Accordingly, stiffness of the heat medium tube can be higher while improving a heat transfer performance between the heat medium tube and the adsorption agent.

First claim

What is claimed is:

1. A manufacturing method of an adsorption core that has (i) a heat medium tube in which a heat medium flows and (ii) an adsorption agent, outside of the heat medium tube, that adsorbs a fluid in a vapor phase when being cooled by the heat medium and desorbs the absorbed fluid when being heated, the manufacturing method of the adsorption core comprising:
plating a whole of an outer surface of a core member of the heat medium tube with copper to form a covering layer that is made of copper and that entirely covers the outer surface, the core member being made of metal having a higher hardness with respect to copper; and
sintering a mixture of the adsorption agent and a copper powder to form a sintered body after plating the whole of the outer surface of the core member of the heat medium tube with copper, wherein
the copper powder and the covering layer are metallically coupled with each other in the sintering.

2. The manufacturing method of the adsorption core according to claim 1 , further comprising
roughing an outer surface of the covering layer after the coating and before the sintering.

3. The manufacturing method of the adsorption core according to claim 1 , wherein
sintering the copper powder and the adsorption agent forms the sintered body extending from the covering layer in a direction intersecting with a flow direction of the heat medium.

Assignees

• Denso Corp

Inventors

• Takeuchi Shinsuke
• Yanagida Akira
• Okamoto Yoshiyuki
• Nagashima Hisao

Classifications

• Y02B30/62

  Absorption based systems · CPC title

• F28D20/00

  Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 · CPC title

• F25B17/08 Primary

  the absorbent or adsorbent being a solid, e.g. salt (F25B17/12 takes precedence) · CPC title

• F28D20/003

  using thermochemical reactions · CPC title

• F25B37/00

  Absorbers; Adsorbers (boiler-absorbers F25B35/00) · CPC title