Title:
PHYSICAL QUANTITY MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/021763
Kind Code:
A1
Abstract:
An airflow meter (14) has a housing (21), and the housing (21) comprises a measurement flow path (32) in which a flow rate detection unit is provided, and a measurement outlet (33c) which is the downstream end of the measurement flow path. The outer peripheral surface of the housing comprises a flat surface (44) and a curved surface (45). The flat surface is provided in an intermediate position between the outer peripheral upstream end (132a) and the outer peripheral downstream end (132b) in the depth direction (Z), and the curved surface extends from the flat surface towards the outer peripheral upstream end. The boundary area between the flat surface and the curved surface includes a vertical boundary area (131a) extending in the height direction (Y), and the measurement outlet is arranged in a position straddling the vertical border in the depth direction. In this way, it is possible to improve the accuracy of physical quantity measurement.
Inventors:
YAMAGUCHI JUNZO (JP)
KITAHARA NOBORU (JP)
TAGAWA HIROSHI (JP)
INOUE MASAKI (JP)
ITO KENGO (JP)
KITAHARA NOBORU (JP)
TAGAWA HIROSHI (JP)
INOUE MASAKI (JP)
ITO KENGO (JP)
Application Number:
PCT/JP2018/025188
Publication Date:
January 31, 2019
Filing Date:
July 03, 2018
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G01F1/684
Foreign References:
| JP2010505100A | 2010-02-18 | |||
| JPH06307906A | 1994-11-04 | |||
| JP2012242226A | 2012-12-10 | |||
| JP2016176906A | 2016-10-06 | |||
| US20120324990A1 | 2012-12-27 |
Attorney, Agent or Firm:
JIN Shunji (JP)
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