Electronic control system for internal combustion engines

Details Electronic control system for internal combustion engines Electronic control system for internal combustion engines

1979-08-08

1981-02-03

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123489, F02B 4708, F02M 2506

Patent

active

042481872

ABSTRACT:
In a carburetor and an exhaust gas recirculation system adapted to an internal combustion engine, the system comprises a first servomotor to be operated by pneumatic pressure and a first control valve actuated by the first servomotor to control the quantity of exhaust gases recirculated into an intake manifold from an exhaust pipe, and the carburetor comprises a second servomotor to be operated by pneumatic pressure and a second control valve actuated by the second servomotor to control the flow quantity of air to be mixed with fuel from a float chamber. The pneumatic pressure applied to the first and second servomotors is electrically controlled to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed.

REFERENCES:
patent: 4071003 (1978-01-01), Aono
patent: 4094285 (1978-06-01), Oyama
patent: 4100891 (1978-07-01), Williams
patent: 4128885 (1978-12-01), Valek et al.
patent: 4142493 (1979-03-01), Schira et al.
patent: 4161929 (1979-07-01), Nohira et al.
patent: 4164032 (1979-08-01), Nohira et al.
patent: 4164206 (1979-08-01), Toelle
patent: 4170973 (1979-10-01), Nohira et al.
patent: 4171691 (1979-10-01), Nohira et al.
patent: 4173205 (1979-11-01), Toelle

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