Fuel injection quantity control device for alcohol engine

Details Fuel injection quantity control device for alcohol engine Fuel injection quantity control device for alcohol engine

1990-10-16

1991-05-28

Argenbright, Tony M.

Internal-combustion engines

Miscellaneous

Fuels, lubricants and additives

123478, 123575, F02D 1908, F02D 4104

Patent

active

050184830

ABSTRACT:
A fuel injection control device is provided for a flexible fuel vehicle alcohol engine to be driven with a mixed fuel consisting of gasoline and alcohol. The engine includes a port injector provided at each cylinder and an intake pipe assembly portion injector commonly provided for all the cylinders. The control device defines such a fuel injection pulse width as enabling the operation of the injector in dependency on the alcohol density and the engine state. It drives only the intake pipe assembly portion injector to inject the fuel if the pulse width is smaller than a predetermined value or adds the fuel injection of the port injector to that if it is larger.

REFERENCES:
patent: 3868936 (1975-03-01), Rivere
patent: 4242992 (1981-01-01), Kawamura et al.
patent: 4418672 (1983-12-01), Muller et al.
patent: 4495930 (1985-01-01), Nakajima
patent: 4546732 (1985-10-01), Mae et al.
patent: 4612904 (1986-09-01), Tadokoro et al.
patent: 4883039 (1989-11-01), Toshimitsu et al.

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