公开(公告)号：US20210199482A1

公开(公告)日：2021-07-01

申请号：US17203359

申请日：2021-03-16

Applicant: DENSO CORPORATION

Inventor： Seiji YAOKO ,  Kazuaki UEDA ,  Shota TODA ,  Yuusuke YOSHIDA ,  Kengo ITO

IPC: G01F1/684 ,  F02D41/18 ,  G01F15/14

Abstract: A flowmeter includes a hollow housing, a first passage, a second passage, a detector, and a flat surface. The housing includes a first side wall and a second side wall and defines an inlet opening and an outlet opening that is defined in the first side wall. The first passage fluidly connects between the inlet opening and the outlet opening. The second passage branches off from the first passage. The detector is disposed in the second passage and configured to detect a flow rate of the target fluid flowing through the second passage. The flat surface is an outer surface of the first side wall and extends between an upstream end of the first side wall and the outlet opening along the main flow direction.

公开(公告)号：US20210156721A1

公开(公告)日：2021-05-27

申请号：US17168908

申请日：2021-02-05

Applicant: DENSO CORPORATION

Inventor： Yuusuke YOSHIDA ,  Seiji YAOKO ,  Kazuaki UEDA ,  Kengo ITO

IPC: G01F1/684

Abstract: A flowmeter is inserted into a main passage through which a target fluid flows. The flowmeter includes a housing, a sub passage, an inlet portion, an outlet portion, a flow rate detector, and a protrusion. The housing includes a side surface and a tip end surface. A part of the target fluid flows into the sub passage from the main passage. The target fluid flows into the sub passage through the inlet portion and flows out of the sub passage through the outlet portion. The flow rate detector is configured to detect a flow rate of the target fluid flowing through the sub passage. The tip end surface includes a first end area and a second end area. The protrusion protrudes from the tip end surface and is located in both the first end area and the second end area.