公开(公告)号：US20230050599A1

公开(公告)日：2023-02-16

申请号：US17979947

申请日：2022-11-03

Applicant: DENSO CORPORATION

Inventor： Yuya SAITO ,  Yuuki SUZUKI ,  Yuusuke TODA ,  Takeshi OKINOTANI

IPC: H05K7/20 ,  F28F13/08

Abstract: A heat exchanger includes a plurality of fins that are spaced from each other and are arranged to divide a heat medium flow passage into a plurality of narrow passages. Each fin incudes a plurality of thick wall portions and a plurality of thin wall portions which are alternately arranged in a passage longitudinal direction. Each adjacent two of the plurality of fins, which are adjacent to each other, are defined as one fine and another fin, and each of the plurality of thick wall portions of the one fin is opposed to an adjacent one of the plurality of thin wall portions of the another fin in a fin arrangement direction, and each of the plurality of thin wall portions of the one fin is opposed to an adjacent one of the plurality of thick wall portions of the another fin in the fin arrangement direction.

公开(公告)号：US20180195480A1

公开(公告)日：2018-07-12

申请号：US15742066

申请日：2016-05-25

Applicant: DENSO CORPORATION

Inventor： Yuusuke TODA ,  Shuichi MATSUMOTO ,  Yoshinori YAMASHITA

IPC: F02M61/18 ,  F02M51/06 ,  F02M69/00

CPC classification number: F02M61/188 ,  F02M51/06 ,  F02M51/0603 ,  F02M61/04 ,  F02M61/18 ,  F02M61/1873 ,  F02M69/00

Abstract: A fuel injection valve includes a valve housing having an injection hole and a valve seat surface tapering toward a downstream side, a valve component that is accommodated in the valve housing and is coaxially separated from or seated on the valve seat surface, and an elastic component biasing the valve component toward the valve seat surface. The valve component includes an inner convex surface curved in a partial spherical shape with a predetermined curvature radius, and an outer convex surface that is provided continuously to the outer peripheral side of the inner convex surface and curved in a partial spherical shape having a smaller curvature radius than the inner convex surface. A boundary portion between the inner convex surface and the outer convex surface protrudes toward the valve seat surface so as to be able to be separated from or seated on the valve seat surface.