The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2003
Filed:
Aug. 10, 2001
Yoshihiko Kohmura, Aichi, JP;
Shunsuke Maeda, Aichi, JP;
Takio Kojima, Aichi, JP;
Takafumi Oshima, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A split-flow-type flowmeter in which an end portion of a flow splitter tube is inserted into a main-flow pipe having a diameter D. A flow splitter tube includes a U-shaped split-flow passage . A detection element is disposed at a bottom portion (not shown) of the U-shaped split-flow passage . The split-flow passage assumes a flow path structure symmetrical with respect to a plane passing through the detection element. A flow inlet and a flow outlet of the split-flow passage face in mutually opposite directions along the flow direction of the main-flow pipe and open symmetrically at the same position on the flow cross section of the main-flow pipe . In order to divert into the split-flow passage a portion of relatively high flow rate of flow from the main-flow pipe , the center of opening of the flow inlet /flow outlet is positioned between the center of the flow cross section of the main-flow pipe and an average-flow-velocity position at which flow in the main-flow pipe is of an average flow velocity, as observed on the flow cross section of the main-flow pipe