Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1979-04-19
1981-05-12
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Fuel injection system
123179L, F02B 300
Patent
active
042665213
ABSTRACT:
In conventional electronic fuel injection systems, the flow rate of a fuel supply is fixed during a starting operation irrespective of time variations in the running parameters of an internal combustion engine. In accordance with the disclosed method and apparatus of the invention, however, the fuel supply flow rate is controlled in accordance with the time variations in the engine running parameters in the same manner as occurs after the starting operation, that is, during normal engine running operations, when at least one of the engine operating conditions of r.p.m. being higher than a preset level and flow rate of intake air being higher than a preset level is satisfied. Thus, the engine running operations either at a higher engine r.p.m. or at a higher intake air flow rate during the engine starting period can be stabilized while improving the engine startability and smoothing the engine running operations when an ignition switch is returned from its starting to its "on" position.
REFERENCES:
patent: 4148283 (1979-04-01), Harada et al.
patent: 4171692 (1979-10-01), Drews et al.
patent: 4184460 (1980-01-01), Harada et al.
patent: 4227491 (1980-10-01), Schnurte et al.
Miyagi Hideo
Nakano Jiro
Argenbright Tony M.
Toyota Jidosha Kogyo Kabushiki Kaisha
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