Operation control system for internal combustion engines at and

Details Operation control system for internal combustion engines at and Operation control system for internal combustion engines at and

1989-02-03

1991-01-29

Dolinar, Andrew M.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123179G, 123491, 123588, F02D 4106

Patent

active

049878719

ABSTRACT:
An operation control system for internal combustion engines at and after starting has an engine temperature sensor, a control valve for controlling the amount of intake air to be supplied to the engine, and a valve opening determining device responsive to an output from the engine temperature sensor for determining the opening of the control valve. The valve opening determining device sets the opening of the control valve at the start of the engine to a value such that the intake air amount is smaller as the engine temperature is lower. A fuel amount determining device is responsive to the output from the engine temperature sensor for determining the amount of fuel to be supplied to the engine at starting. A correction value determining device is responsive to the opening of a throttle valve of the engine for determining a correction value for the fuel amount in such a manner as to increase the fuel amount at a larger rate as the throttle opening is larger. A valve opening progressive increase device progressively increases the opening of the control valve after the start of the engine. A valve opening progressive decrease device progressively decreases the opening of same after the engine rotational speed reaches a predetermined value after the start of the engine.

REFERENCES:
patent: 3749070 (1973-07-01), Oishi et al.
patent: 3960130 (1976-06-01), Peterson, Jr.
patent: 4414943 (1983-11-01), Nagase
patent: 4463723 (1984-08-01), Tansuwan
patent: 4548178 (1985-10-01), Sato et al.

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