Patent · US Active

Flow measuring device

US8752424B2 · kind B2 · utility

3Cited by
7References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 15, 2012
Grant dateJun 17, 2014
Priority date—
Expiry dateJul 31, 2032

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01F1/6842
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A bypass passage receives a part of air flowing through a duct. A sub-bypass passage is branched from an intermediate portion of the bypass passage to separate dust contained in air flowing through the duct. A flow rate sensor is located in the sub-bypass passage for detecting the flow rate of air. A first wall surface and a second wall surface of the bypass passage are located upstream from the branch. The first wall surface is located on the side of the branch. The second wall surface is opposed to the first wall surface. Both the first wall surface and the second wall surface are curved to direct airflow to move away from the branch.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.