Invention Grant
- Patent Title: Thermal type flow meter and engine control system using the same
- Patent Title (中): 热式流量计和发动机控制系统使用相同
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Application No.: US12126429Application Date: 2008-05-23
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Publication No.: US07726187B2Publication Date: 2010-06-01
- Inventor: Yoshihiro Sukegawa , Noboru Tokuyasu , Hiroaki Hoshika
- Applicant: Yoshihiro Sukegawa , Noboru Tokuyasu , Hiroaki Hoshika
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, P.C.
- Priority: JP2007-138547 20070525
- Main IPC: G01F1/68
- IPC: G01F1/68
Abstract:
A thermal type flow meter has a first heating resistor, a second heating resistor for blocking heat transfer from the first heating resistor to a console, a temperature measuring resistor interposed between the two heating resistors, and a controller for calculating a flow rate unrelated to temperatures of fluid from temperatures of the resistors and currents supplied to the heating resistors.
Public/Granted literature
- US20080295590A1 THERMAL TYPE FLOW METER AND ENGINE CONTROL SYSTEM USING THE SAME Public/Granted day:2008-12-04
Information query
