Method and apparatus for controlling the air intake of an intern

Internal-combustion engines – Engine speed regulator – Idle speed control

Patent

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Details

123585, 123179B, F02D 900

Patent

active

043876820

ABSTRACT:
The sectional area of an air bypass passage which bypasses a throttle valve in an intake passage of an internal combustion engine is increased or decreased depending upon the difference between the actual rotational speed of the engine and the variable reference rotational speed. The variable reference rotational speed is additionally increased by an incremental value during the starting of the engine.

REFERENCES:
patent: 3661131 (1972-05-01), Croft
patent: 3964457 (1976-06-01), Coscia
patent: 3977380 (1976-08-01), Atsumi et al.
patent: 4240145 (1980-12-01), Yano et al.

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