公开(公告)号：US09789564B2

公开(公告)日：2017-10-17

申请号：US13715545

申请日：2012-12-14

Applicant: DENSO CORPORATION ,  UACJ CORPORATION

Inventor： Akira Yanagida ,  Shoei Teshima ,  Takeshi Iguchi ,  Masakazu Morimoto ,  Kotaro Kitawaki ,  Kazuyoshi Nakashima ,  Takashi Murase

IPC: B23K20/00 ,  B23K35/28 ,  F28F21/08 ,  B23K35/36 ,  B23K35/38 ,  B23K35/02 ,  B23K101/14 ,  B23K103/10 ,  B23K103/12 ,  B23K103/18

CPC classification number: B23K20/002 ,  B23K35/0222 ,  B23K35/0233 ,  B23K35/0244 ,  B23K35/286 ,  B23K35/3603 ,  B23K35/3605 ,  B23K35/383 ,  B23K2101/14 ,  B23K2103/10 ,  B23K2103/12 ,  B23K2103/18 ,  F28F21/084 ,  F28F21/085 ,  F28F2275/04

Abstract: 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° C.

公开(公告)号：US10101066B2

公开(公告)日：2018-10-16

申请号：US15104948

申请日：2014-12-17

Applicant: DENSO CORPORATION

Inventor： Shinsuke Takeuchi ,  Akira Yanagida ,  Yoshiyuki Okamoto ,  Hisao Nagashima

IPC: F25B37/00 ,  F25B17/08 ,  F28F13/00 ,  F28D20/00 ,  F28F1/24 ,  F25B41/04 ,  F28D7/16 ,  F25B49/04

Abstract: 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 ϕ is set at 70% or less when the adsorbent filling ratio ϕ is defined as a value obtained by dividing a filling density ρ of the adsorbent filled in the adsorbent layer by a true density ρabs of particles of the adsorbent. For example, the adsorber may be suitably used for an adsorption refrigerator.

公开(公告)号：US10591189B2

公开(公告)日：2020-03-17

申请号：US15039069

申请日：2014-11-28

Applicant: DENSO CORPORATION

Inventor： Shinsuke Takeuchi ,  Akira Yanagida ,  Yoshiyuki Okamoto ,  Hisao Nagashima

IPC: F25B17/08 ,  F28D20/00 ,  F25B37/00

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.