Fuel control system for internal combustion engines

Details Fuel control system for internal combustion engines Fuel control system for internal combustion engines

1979-07-31

1981-05-05

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Electrical input and feedback signal means

91457, F15B 1316

Patent

active

042651638

ABSTRACT:
The amount of axial movement of a plunger is controlled by a hydraulic servomechanism. The pressure in the hydraulic chamber of the servomechanism is controlled by opening and closing an inlet valve and outlet valve provided respectively at the inlet and outlet sides of the hydraulic chamber. When the difference value between the actual position and desired position of the plunger is greater than a first predetermined value, only one or the other of the inlet and outlet valves is energized. When the difference is intermediate the first predetermined value and a second predetermined value which is smaller than the former, the inlet and outlet valves are energized at different duty cycles. When the difference is smaller than the second predetermined value, the valves are both deenergized.

REFERENCES:
patent: 3266378 (1966-08-01), Shaw
patent: 3295421 (1967-01-01), McCormick
patent: 3477346 (1969-11-01), Slavin et al.
patent: 3618469 (1971-11-01), Wills et al.

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