Fuel injection system of internal combustion engine

Details Fuel injection system of internal combustion engine Fuel injection system of internal combustion engine

1991-08-13

1992-08-04

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123478, 123 73C, F02D 4104, F02B 3304

Patent

active

051349841

ABSTRACT:
This invention relates to a fuel injection apparatus for an internal combustion engine, and more particularly to an improved control arrangement for a fuel injection arrangement. In accordance with the invention, an arrangement is disclosed for determining the mass of air taken into the engine crankcase chamber by calculating an average intake air mass which is based not on pressure measurements taken upon each crankshaft rotation individually, but on the arithmetical mean of such pressure measurements taken during a plurality of crankshaft rotations. Thus, a fuel injection control system is achieved which senses differences in crankcase pressure and which eliminates the effects of abnormal changes in crankcase pressure due to effects other than the amount of air inducted.

REFERENCES:
patent: 4461260 (1984-07-01), Nonaka et al.
patent: 4593667 (1986-06-01), Sasaki et al.
patent: 4671242 (1987-06-01), Akiyama et al.
patent: 4750464 (1988-06-01), Staerzl
patent: 4903649 (1990-02-01), Staerzl
patent: 4958516 (1990-09-01), Stiles et al.
patent: 4987773 (1991-01-01), Stiles et al.

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