Device for recirculating exhaust gas in an internal combustion e

Details Device for recirculating exhaust gas in an internal combustion e Device for recirculating exhaust gas in an internal combustion e

1983-09-06

1986-06-17

Wolfe, W. R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123569, F02M 2506

Patent

active

045949930

ABSTRACT:
Disclosed is a system for recirculating exhaust gas in an internal combustion engine having an exhaust gas recirculating conduit which is provided with a valve controlled by two solenoid windings. The system includes a control device including a PID regulator having limitations and cooperating with a three-point switching circuit which exhibits a hysteresis and includes a feedback. The energizing signals for the two solenoid windings are limited between a minimum and a maximum value, whereby the minimum value is defined by the operational sensitivity of the exhaust gas recirculating valve.

REFERENCES:
patent: 4174689 (1979-11-01), Hosaka
patent: 4279235 (1981-07-01), Flaig et al.
patent: 4280470 (1981-07-01), Ueda
patent: 4333738 (1982-06-01), Perez et al.
patent: 4369753 (1983-01-01), Sugiyama
patent: 4378777 (1983-04-01), Iida et al.
patent: 4388909 (1983-06-01), Ogasawara et al.
patent: 4428355 (1984-01-01), Yokooku
patent: 4433667 (1984-02-01), Ripper

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