Patent ID: 9464598
Filing Date: 2016-10-11
CPC Classification: F02M,F28D,F28F,Y02T

Claim Text:
1. An exhaust gas cooling device which cools exhaust gas from an internal combustion engine mounted on a vehicle through heat exchange between the exhaust gas and a coolant, comprising: a plurality of tubes through which the exhaust gas flows; a tubular shell which houses the plurality of tubes and is configured to allow the coolant to flow therethrough; and a header plate disposed at an end portion in the shell to prevent the coolant from flowing out of the shell, wherein the header plate includes support holes in which end portions of the plurality of the tubes are fitted and supported, and each of axial end faces of the plurality of tubes is located in the corresponding support hole at a position between both ends of the header plate in a thickness direction of the header plate, wherein the header plate includes movement restricting portions which contact the axial end faces of the plurality of tubes to restrict the plurality of tubes from moving axially, wherein each of the movement restricting portions is constituted by a wall member that extends in a direction perpendicular to the thickness direction of the header plate, in the corresponding support hole, and wherein each of the movement restricting portions has a height in the direction perpendicular to the thickness direction of the header plate, the height being equivalent to a thickness of each of the tubes.