公开(公告)号：US20150267637A1

公开(公告)日：2015-09-24

申请号：US14366043

申请日：2012-12-11

Applicant: DENSO CORPORATION

Inventor： Isao Kuroyanagi ,  Takayuki Hayashi ,  Takeshi Iguchi ,  Yasutoshi Yamanaka

IPC: F02G5/02

CPC classification number: F02G5/02 ,  F02M26/32 ,  F28D7/0083 ,  F28D7/106 ,  F28D7/1684 ,  F28D21/0003 ,  F28F1/426 ,  F28F3/042 ,  F28F9/001 ,  F28F9/02 ,  F28F9/26 ,  F28F2009/029

Abstract: An EGR cooler includes an heat exchanging core which has a plurality of tubes and a first water passage, an upstream-side gas tank portion and a downstream-side gas tank portion that are respectively disposed on the upstream-side and the downstream-side to communicate with the tubes therein, a water tank portion that forms the first water passage and forms a second water passage which communicates with the water passage around the upstream-side gas tank portion, a double pipe portion that forms a gas passage which communicates with an inner portion of the upstream-side gas tank portion in the inside pipe and forms a water passage which communicates with the second water passage between the inside pipe and the outside pipe, a water inflow pipe that is connected to the outside pipe such that the cooling water flows into the water passage, and a water outflow pipe that is connected to the water tank portion such that the cooling water flows out from the first water passage.

Abstract translation: EGR冷却器包括：热交换芯，其具有多个管，第一水通道，上游侧气罐部分和下游侧气罐部分分别设置在上游侧和下游侧至 与其中的管连通，形成第一水通道并形成与上游侧气罐部分周围的水通道连通的第二水通道的水箱部分，形成与 上游侧气罐部分的内部部分在内管中形成与内管和外管之间的第二水通道连通的水通道，与外管连接的水流入管，使得冷却 水流入水通道，和水流出管，其连接到水箱部分，使得冷却水从第一水通道流出。

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：US09581107B2

公开(公告)日：2017-02-28

申请号：US14366043

申请日：2012-12-11

Applicant: DENSO CORPORATION

Inventor： Isao Kuroyanagi ,  Takayuki Hayashi ,  Takeshi Iguchi ,  Yasutoshi Yamanaka

IPC: B60H1/00 ,  F02G5/02 ,  F28F9/02 ,  F28F1/42 ,  F28F3/04 ,  F28F9/00 ,  F28F9/26 ,  F28D7/00 ,  F28D7/10 ,  F28D7/16 ,  F28D21/00

CPC classification number: F02G5/02 ,  F02M26/32 ,  F28D7/0083 ,  F28D7/106 ,  F28D7/1684 ,  F28D21/0003 ,  F28F1/426 ,  F28F3/042 ,  F28F9/001 ,  F28F9/02 ,  F28F9/26 ,  F28F2009/029

Abstract: An EGR cooler includes a heat exchanging core which has a plurality of tubes, an upstream-side gas tank portion upstream of the tubes and a downstream-side gas tank portion downstream of the tubes. A water tank portion forms a first water passage around the tubes and forms a second water passage around the upstream-side gas tank portion. A double pipe portion forms a gas passage which communicates with the upstream-side gas tank portion and forms an annular water passage which communicates with the second water passage. A water inflow pipe is connected to the double pipe portion such that the cooling water flows into the annular water passage, and a water outflow pipe that is connected to the water tank portion such that the cooling water flows out from the first water passage.

Abstract translation: EGR冷却器包括：热交换芯，其具有多个管，管的上游侧的上游侧气罐部和管下游的下游侧气罐部。 水箱部分形成围绕管的第一水通道，并在上游侧气罐部分周围形成第二水通道。 双管部形成与上游侧气罐部连通并形成与第二水通路连通的环状水路的气体通路。 水入流管与双管部连接，冷却水流入环状水通道，与水箱部连接，使冷却水从第一水路流出。