Operation control system for internal combustion engine

Details Operation control system for internal combustion engine Operation control system for internal combustion engine

1989-12-29

1991-02-19

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123 25J, 123 4102, 123 1A, 123489, 123480, 123 480AA, F02B 504, F02B 4702, F02B 7512, F02M 5100

Patent

active

049933868

ABSTRACT:
An operation control system for an engine using alcohol fuel or mixed fuel of alcohol and hydrocarbon, or for an engine supplying cooling liquid such as alcohol, water or the like as fuel. Vapor concentration in exhaust gas and an air excess ratio of air-fuel mixture are detected, and a supply rate of alcohol, a water absorption ratio of alcohol or an amount of the cooling liquid is computed on the basis of the vapor concentration and the air excess ratio. Ignition timing, temperature of the coolant, a compression ratio and an air excess ratio are controlled on the basis of the supply rate of alcohol or the water absorption ratio of alcohol. Further, the cooling liquid is supplied which has its amount computed at a heavy load. Thus, operational performance of the engine is improved.

REFERENCES:
patent: 4031864 (1977-06-01), Crothers
patent: 4402296 (1983-09-01), Schwarz
patent: 4884530 (1989-12-01), Boekhaus et al.
patent: 4909225 (1990-03-01), Gonze et al.
patent: 4913099 (1990-04-01), Ota
patent: 4945882 (1990-08-01), Brown et al.
SAE Technical Paper Series, "Intercooling Effects of Methanol on Turbocharged Diesel Engine Performance and Exhaust Emissions", pp. 1-7.

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