Method and apparatus for controlling the operation of a diesel e

Details Method and apparatus for controlling the operation of a diesel e Method and apparatus for controlling the operation of a diesel e

1977-10-31

1980-09-23

Brigance, Gerald L.

Internal-combustion engines

Engine speed regulator

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

123340, F02M 5106

Patent

active

042236541

ABSTRACT:
A method and apparatus for controlling a Diesel engine by limiting the amount of fuel to be admitted to the engine in dependence on engine speed and on the air mass flow rate. The invention provides a primary set of stored data interrelating these variables. The primary data set is used to generate a set-point value for the position of a movable stop member which limits the mechanical travel of the fuel control rack in the fuel injection pump; the control rack is also subject to the action of a mechanical speed governor. Additional corrections of the maximum amount of fuel are made on the basis of air temperature and fuel temperature. Still further refinements include taking into account exhaust gas temperature and engine starting conditions. The final corrected set-point signal is then compared with the output from a position indicator which is attached to the stop member. A servo-controlled element corrects the position of the stop member until the error indications are minimized in a closed loop, feedback control circuit.

REFERENCES:
patent: 2925066 (1960-02-01), Thorner
patent: 3817226 (1974-06-01), Wakamatsu et al.
patent: 3841283 (1974-10-01), Wood
patent: 3973537 (1976-08-01), Williams et al.
patent: 3973538 (1976-08-01), Williams et al.
patent: 3973539 (1976-08-01), Jones et al.
patent: 3981287 (1976-09-01), Williams et al.

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