公开(公告)号：US10202880B2

公开(公告)日：2019-02-12

申请号：US15300632

申请日：2015-04-20

Applicant: DENSO CORPORATION

Inventor： Isao Kuroyanagi ,  Ryoichi Sanada ,  Yasutoshi Yamanaka

IPC: F01N3/00 ,  F01N5/02 ,  F28F1/40 ,  F28F13/12 ,  F28F1/02 ,  F28F3/02 ,  F28D7/16 ,  F28D9/00 ,  F28F1/04

Abstract: An exhaust heat exchanger has a fin disposed in an exhaust passage in which exhaust air flows in a flow direction and having plate portions. The plate portions respectively have a protruding portion that protrudes from the plate portions. When a direction perpendicular to both the flow direction and a direction perpendicular to the flow direction is defined as a fin height direction, (i) a protruding amount of the protruding portion in a second site is larger than that in a first site, to which the second site is located on a downstream side of the first site in the flow direction, and (ii) a protruding amount of the protruding portion in a third site is larger than that in a fourth site, to which the fourth site is located away from a center portion of the protruding portion than the third site in the fin height direction.