Control system for air/fuel ratio adjustment system

Details Control system for air/fuel ratio adjustment system Control system for air/fuel ratio adjustment system

1984-07-26

1985-02-05

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, F02B 300

Patent

active

044972970

ABSTRACT:
The invention is concerned with a control system for an air/fuel ratio measurement and adjustment system for an internal combustion engine. In order to limit operation of the measurement and adjustment system to occasions when adjustment is likely to be necessary, an altitude sensing system is provided and the air/fuel ratio measurement and adjustment system is operated in response to measurement of a change in altitude. Altitude measurement is by way of measurement of absolute pressure in the engine inlet manifold and relating the measured pressure to an expected inlet manifold pressure at sea level for the current conditions of throttle opening and engine speed.

REFERENCES:
patent: 4319451 (1982-03-01), Tajima
patent: 4348729 (1982-09-01), Sasayama
patent: 4352158 (1982-09-01), Date

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