Denso Corporation

Uacj Corporation

Denso Aircool Corporation

Akira Yanagida

Yoshiyuki Okamoto

Hisao Nagashima

Takeshi Iguchi

Shinsuke Takeuchi

Kotaro Kitawaki

Shoei Teshima

Takashi Murase

Masakazu Morimoto

Takefumi Hosono

Haruki Shingo

Kazuyoshi Nakashima

Naoki Satou

A heat exchanger includes multiple aluminum heat transfer tubes through which a heat medium flows, and multiple aluminum connection pipes brazed to end portions of the heat transfer tubes. A heat equalizing member formed of a heat conductor is disposed to be in contact with at least two of the connection pipes and be capable of transferring heat therebetween. A method for producing the heat exchanger includes brazing the heat transfer tubes to the connection pipes in a state where the heat equalizing member is in contact with the at least two of the connection pipes.

Heat exchanger and method for producing same

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.

Adsorption core and manufacturing method thereof

An adsorber includes: a heat-medium pipe through which a heat medium flows; an adsorbent layer having an adsorbent that adsorbs a vapor-phase refrigerant located outside the heat-medium pipe by being cooled by the heat medium, and further desorbs the adsorbed refrigerant by being heated; and a heat-transfer member that transfers heat between the heat-medium pipe and the adsorbent. In the adsorber in which the heat-transfer member and the adsorbent are integrally formed, an adsorbent filling ratio &#x3d5; is set at 70% or less when the adsorbent filling ratio &#x3d5; is defined as a value obtained by dividing a filling density &#x3c1; of the adsorbent filled in the adsorbent layer by a true density &#x3c1;abs of particles of the adsorbent. For example, the adsorber may be suitably used for an adsorption refrigerator.

Adsorber and adsorption refrigerator

The disclosed method relates to manufacturing a heat exchanger which causes no brazing defects, and a heat exchanger manufactured by the method. The method relates to manufacturing a heat exchanger having an aluminum alloy tube defining a cooling-medium flowing passage and a copper alloy tube defining a water flowing passage, wherein a heat exchange is carried out between a cooling medium flowing through the cooling-medium flowing passage and water flowing through the water flowing passage. The aluminum alloy tube and the copper alloy tube are brazed to each other at a temperature of less than 548&#xb0; C.

Manufacturing method of heat exchanger, and heat exchanger manufactured by such manufacturing method

Growing community of inventors

Kariya, Japan

Akira Yanagida