Internal combustion engine intake sensing system

Details Internal combustion engine intake sensing system Internal combustion engine intake sensing system

1998-07-23

2000-01-18

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

12356827, 123497, F02M 2507, F02M 3704

Patent

active

060149612

ABSTRACT:
A pressure sensing system for an internal combustion engine including an intake manifold (20) and an exhaust manifold (24), with an EGR valve assembly (30) mounted thereto. A sensor housing (60) includes three absolute sensors (80, 82, 84) for measuring absolute EGR pressure, manifold absolute pressure, and fuel rail pressure. The passages (28, 68) for the EGR flow and for measuring the EGR and MAP are internal to the EGR assembly and manifolds, thus eliminating separate hoses. The orifice (76) within the EGR passages (28, 68) is located downstream of the EGR valve to allow for pressure downstream of the orifice to be MAP pressure.

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