Flow measurement and control

Details Flow measurement and control Flow measurement and control

1999-01-11

2000-07-25

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

7386161, F02M 2507, G01F 142

Patent

active

060925132

ABSTRACT:
An exhaust gas recirculation systems directs exhaust gasses from an exhaust manifold to an intake manifold of an internal combustion engine. The exhaust gasses travel from the exhaust manifold, first passing through a flow control valve and then through a measuring orifice before entering the intake manifold. Pressure difference across the orifice is used, along with correction factors based on the pressure difference and pressure downstream of the orifice, to measure and control exhaust gas flow.

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