Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1995-09-22
1998-11-17
Dombroske, George
Measuring and testing
Volume or rate of flow
Using differential pressure
731173, 36443103, 702 47, G01F 134
Patent
active
058379037
ABSTRACT:
An apparatus for determining the exhaust flowrate from an internal combustion engine (112) includes a laminar flowmeter (116). The flowmeter includes a capillary section (18) of ceramic material including an array of capillary tubes. Signals from a differential pressure sensor (128) which measures pressure loss across the capillary section as well as an absolute pressure sensor (126) and a temperature sensor (130) are input to a computer (134). The computer is programmed to calculate the flowrate of exhaust gas from the engine through its operating range.
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Amrozowicz Paul D.
Dombroske George
Jocke Ralph E.
The Scott Fetzer Company Inc.
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