Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1998-11-25
2000-09-12
Wolfe, Willis R.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
12356829, F02M 2507
Patent
active
061162248
ABSTRACT:
In an automotive vehicle powered by an internal combustion engine, an EGR flow path includes an exhaust emission control valve between an exhaust system of the engine and an intake system of the engine. The valve is operated by an actuator having a body mounted on the emission control valve body and a shaft for operating the valve to selectively restrict the flow path. The shaft is operated by a movable actuator wall of the actuator bounding a portion of a variable volume chamber space to which regulated vacuum from an electric vacuum regulator (EVR) valve is communicated to position the movable actuator wall. An internal pressure sensing passage, which includes a tube that also functions as the shaft communicates pressure at a location in the flow path to a pressure sensor. The tube communicates the flow path to a chamber space separated from the variable volume chamber space by a separator wall, and a port of the pressure sensor communicates with the chamber space of the sensing passage. The pressure sensor and the EVR valve are integrated with the body of the fluid pressure actuator. A single electric connector connects the pressure sensor and the EVR valve with external circuitry.
REFERENCES:
patent: 3880129 (1975-04-01), Hollis, Jr.
patent: 4142493 (1979-03-01), Schira et al.
patent: 4173205 (1979-11-01), Toelle
patent: 4195605 (1980-04-01), Weathers et al.
patent: 4231340 (1980-11-01), Nishimiya et al.
patent: 4256076 (1981-03-01), Bradshaw
patent: 4349003 (1982-09-01), Masuda
patent: 4351285 (1982-09-01), Bradshaw
patent: 4364368 (1982-12-01), Blanchette
patent: 4455987 (1984-06-01), Sudbeck et al.
patent: 4469079 (1984-09-01), Cook
patent: 4497335 (1985-02-01), Masuda
patent: 4566423 (1986-01-01), Kenny et al.
patent: 4694812 (1987-09-01), Wendt
patent: 5188086 (1993-02-01), Adkins et al.
patent: 5203313 (1993-04-01), Rotarius
patent: 5241940 (1993-09-01), Gates, Jr.
patent: 5448981 (1994-08-01), Cook et al.
patent: 5494255 (1996-02-01), Pearson et al.
patent: 5613479 (1997-03-01), Gates et al.
patent: 5669364 (1997-09-01), Everingham
patent: 5901690 (1999-05-01), Hussey et al.
patent: 5960776 (1999-10-01), Everingham et al.
Busato Murray F.
Cook John E.
Siemens Canada Ltd.
Wolfe Willis R.
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