Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1998-07-23
1999-11-23
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
12356827, 123497, F02M 2507, F02M 3704
Patent
active
059881496
ABSTRACT:
An internal combustion engine including a pressure sensing system. A first (80) and a second (82) absolute pressure sensor are located in a main sensor housing (60) mounted near an intake manifold (20). The first pressure sensor (80) measures the pressure in an EGR passage (68) between an EGR valve (30) and an orifice (76), and the second pressure sensor 82 measures the pressure in the intake manifold (20) downstream of the throttle valve (46). A fuel sensor housing (54) is mounted to the fuel rail (50) and includes a third absolute pressure sensor (84) that measures the pressure in the fuel rail (50). The signals from three sensors are then used by a powertrain control module (42) to control the exhaust gas recirculation and returnless fuel systems.
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Drouillard Jerome R.
Ford Global Technologies Inc.
Wolfe Willis R.
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