Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1975-05-19
1977-05-10
Burns, Wendell E.
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
F02B 7510, F02B 300, F02M 3700
Patent
active
040221717
ABSTRACT:
A method and device for regulating the composition of a fuel air mixture supplied to an internal combustion engine by means of a valve in a secondary air inlet opening into the intake pipe of the internal combustion engine. A detector measures the composition of the exhaust gas and supplies a signal proportional to the oxygen or carbon monoxide content of the gas, this signal is compared with a stabilized voltage, the difference thus obtained is compared with a signal consisting of triangular pulses of a fixed amplitude and the signal thus obtained is used to control the valve after amplification, the duration of the signal defining the time of opening of the valve.
REFERENCES:
patent: 3601106 (1971-08-01), Narajima
patent: 3616274 (1971-10-01), Eddy
patent: 3675632 (1972-07-01), Nakajima
patent: 3745768 (1973-07-01), Zechnazl et al.
patent: 3759232 (1973-09-01), Wahl et al.
patent: 3827237 (1974-08-01), Linder et al.
patent: 3842600 (1974-10-01), Nakajima et al.
patent: 3871338 (1975-03-01), Schmidt et al.
patent: 3910240 (1975-10-01), Omori et al.
patent: 3919983 (1975-11-01), Wahl et al.
Gele Pierre
Laprada Xavier
Laprade Bernard
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