Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1981-02-20
1984-01-31
Lazarus, Ira S.
Internal-combustion engines
Charge forming device
Fuel injection system
123459, 123462, F02M 3900
Patent
active
044283474
ABSTRACT:
A fuel-injected internal combustion engine wherein fuel is injected in dependence upon a quantity or volume of air supplied to the engine. A throttle valve controls the airflow rate with an O.sub.2 probe, arranged in an exhaust manifold, controlling a timing valve through a control device for enabling a timed relief of injection pressure of the fuel. An ignition starter switch is connected to the control device in such a manner that the timing valve is fully open during an operation of the ignition starter switch so as to enable a starting boost. An adjustable timing member is coupled to an operating switch provided in the control device, which operating switch closes automatically after a termination of the starting process. The timing member maintains the timing valve in a fully open position during a specific time span so as to provide for an after-start boost. An additional timing member is adapted to maintain the timing valve in a fully open position during a short time span so as to enable an acceleration enrichment. The control device renders the start boost, after-start boost, and acceleration enrichment ineffective upon the probe reaching its normal operating temperature.
REFERENCES:
patent: 3942496 (1976-03-01), Gisele et al.
patent: 3981288 (1976-09-01), Wessel
patent: 3993032 (1976-11-01), Passera
patent: 3993034 (1976-11-01), Passera
patent: 4167169 (1979-09-01), White
patent: 4266520 (1981-05-01), Muller
patent: 4284048 (1981-08-01), Schelhas
Abthoff Jorg
Langer Hans-Joachim
Noller Christoph
Schuster Hans-Dieter
Daimler-Benz Aktiengesellschaft
Lazarus Ira S.
Moy Magdalen
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