公开(公告)号：US11480455B2

公开(公告)日：2022-10-25

申请号：US16985496

申请日：2020-08-05

Applicant: DENSO CORPORATION

Inventor： Hiroshi Tagawa ,  Hiroyuki Akuzawa ,  Teruaki Kaifu ,  Kengo Ito ,  Noboru Kitahara

IPC: G01F1/68 ,  G01F1/69 ,  G01F5/00 ,  G01F1/684 ,  G01F1/688 ,  G01F15/14 ,  G01F15/18 ,  F02M35/10 ,  G01K1/14 ,  G01K13/02 ,  G01K13/024

Abstract: A physical quantity measurement device includes a housing forming a measurement flow path through which the fluid flows and a container space that houses a part of a detection unit. An inner surface of the housing includes a housing intersecting surface that intersects an arrangement direction in which the measurement flow path and the container space are arranged, a housing flow path surface extending from the housing intersecting surface toward the measurement flow path, and a housing container surface extending from the housing intersecting surface toward the container space. The housing includes a housing partition that protrudes from the inner surface toward the detection unit and contacts the detection unit between the housing and the detection unit such that the housing partition separates the measurement flow path and the container space from each other.

公开(公告)号：US11326918B2

公开(公告)日：2022-05-10

申请号：US17173642

申请日：2021-02-11

Applicant: DENSO CORPORATION

Inventor： Kazuaki Ueda ,  Yuusuke Yoshida ,  Kengo Ito

IPC: G01F1/684 ,  F02D41/18 ,  F02M35/10

Abstract: A flowmeter is disposed in a passage through which a fluid flows. The flowmeter includes a first passage and a second passage. The first passage defines an opening through which a part of the fluid flows into the flowmeter from the passage. The second passage branches off from the first passage and includes a flow rate detector configured to detect a flow rate of the fluid flowing through the second passage from the first passage. The second passage has one end at which the second passage branches off from the first passage and the other end. The second passage includes at least one end opening at the other end and an inflow reducer configured to restrict the fluid from flowing into the second passage through the at least one end opening.

公开(公告)号：US11199430B2

公开(公告)日：2021-12-14

申请号：US16985627

申请日：2020-08-05

Applicant: DENSO CORPORATION

Inventor： Kengo Ito

IPC: G01F1/69 ,  G01F5/00

Abstract: A physical quantity measurement device includes a passage flow channel having an inflow port and an outflow port, a branch flow channel branched from the passage flow channel and having a branch inlet into which the fluid flows from the passage flow channel. The branch flow channel has an inclined branch path inclined with respect to the passage flow channel, and the inclined branch path extends from the branch inlet toward the outflow por. An inclination angle of the branch flow channel at the branch inlet with respect to a virtual straight line connecting the inflow port and the outflow port is smaller than or equal to a predetermined value.