Hyundai Motor Company

Kia Motors Corporation

Do Jun Park

Dong Young Lee

Sung Il Yoon

In Sung Yun

Seogjin Yoon

An exhaust gas recirculation (EGR) cooler includes: a housing having an exhaust gas inlet and an exhaust gas outlet, a coolant inlet and a coolant outlet, and a plurality of grooves protruding inward from upper and lower surfaces of the housing; a plurality of tubes spaced apart from each other so that exhaust gas flows in the housing; and a plurality of supporters supporting the plurality of tubes in the housing, wherein the plurality of supporters are disposed between an upper surface of the housing and a tube adjacent the upper surface of the housing among the plurality of tubes, between an lower surface of the housing and a tube adjacent the lower surface of the housing among the plurality of tubes, and between the plurality of tubes so that the plurality of supporters are disposed in a space in which the coolant flows inside the housing.

Exhaust gas recirculation cooler

A water-cooled EGR cooler apparatus may include tubes in which gas passage is formed, and a tube bonded portion that internally and externally seals is provided, pins disposed at the gas passage of the tubes, and of which one surface contact and are bonded with the tube bonded portion, and supporters disposed between the tubes to form coolant passages and of which one surface contact and are bonded with the tube bonded portion.

Water-cooled EGR cooler, and the manufacturing method thereof

A water-cooled exhaust gas recirculation (EGR) cooler may include tubes positioned within a housing at a predetermined interval, which forms an exhaust gas passage that exhaust gas passes therethrough, and a tube bonded portion that seals internally and externally the tube is provided at a first side of the tube; and supporters interpose the tubes to define a predetermined interval between the tubes and positioned within the housing wherein a coolant passage which a coolant flows between the tubes is formed, wherein an external surface of a first side of the supporter is bonded to an external surface of the tubes to form a reinforcing bonded portion wherein the supporter covers and seals the tube bonded portion.

Growing community of inventors

Ulsan, South Korea

Do Jun Park