Electronic fuel injection control apparatus using variable resis

Details Electronic fuel injection control apparatus using variable resis Electronic fuel injection control apparatus using variable resis

1976-02-03

1978-10-24

Lazarus, Ronald H.

Internal-combustion engines

Noncompression

123 32EA, F02B 300

Patent

active

041215451

ABSTRACT:
An electronic fuel injection control apparatus is provided with a first sensor to determine the volume of intake air and a second sensor providing an electrical signal the magnitude of which is related to the engine speed. The detected air volume is translated into a corresponding pivotal movement. A variable resistance element is arranged to alter its value in accordance with the pivotal movement. The engine speed related signal is connected to the end terminals of the resistance element to develop a voltage representing the engine speed. The variation of the resistance value produces corresponding variation in voltage across the output terminals of the resistance. The output voltage is thus related both to the engine speed and intake air volume, and used to modulate the duration of a pulse produced per engine revolution to provide an injection control signal.

REFERENCES:
patent: 3732854 (1973-05-01), Murtin
patent: 3750631 (1973-08-01), Scholl et al.
patent: 3750632 (1973-08-01), Zechnall
patent: 3782339 (1974-01-01), Scholl et al.
patent: 3796198 (1974-03-01), Mauch et al.
patent: 3867913 (1975-02-01), Pierlot
patent: 3951113 (1976-04-01), Wessel et al.
patent: 3983848 (1976-10-01), Handtmann et al.
patent: 3991726 (1976-11-01), Kawai et al.

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