Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1998-11-25
2000-10-31
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
F02M 2507
Patent
active
061386529
ABSTRACT:
An EGR module has an emission control valve body containing a main flow passage having a valve member that controls exhaust gas flow through the passage. An internal pressure sensing passage communicates pressure at one side of an orifice in the main flow passage to a pressure sensor. The pressure sensor and an EVR valve are integrated with the body of a fluid pressure actuator that operates the valve member. The actuator has two body parts, one of which is assembled to the emission control valve body before the two actuator body parts are assembled together. The sensor has an electric connector containing some terminals connected to one or more electric sensing elements and additional terminals that make mated connection with terminals of the EVR valve as the sensor is being associated with the EVR valve during assembly of the module.
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Busato Murray F.
Cook John E.
Siemens Canada Limited
Wolfe Willis R.
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