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:
Jan. 11, 2005
Filed:
Aug. 08, 2003
Akinobu Moriyama, Yokohama, JP;
Akinobu Moriyama, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A gas flow measuring device and gas flow measuring method are disclosed wherein specific gas component of measuring object gas or target gas composed of gas different from the specific gas component are added to or extracted from the measuring object gas, and concentrations Cand Cof the specific gas component before and after the target gas is added to or extracted. A detector () is provided to calculate the flow rate Qin response to the detected concentrations C, Cor to detect the flow rate Qof the measuring object gas, and the flow rate Qof added or extracted target gas is detected in response to the flow rate Qand the concentrations C, Cwhich are detected.