Control apparatus for supercharged fuel injection engines

A control apparatus for supercharged fuel injection internal combustion engines such as diesel engines having two induction tubes and a fuel measurement apparatus having a delivery-amount adjustment member and provided with adjustable means for varying the range of the full-load position of said delivery-amount adjustment member of said fuel measurement apparatus, return means and charge-air pressure responsive means movable against the force of said return means connected to the adjustable means comprising,

• a pair of intake pressure lines each connected to one of the induction tubes of the engine,
• a switch valve having an interior defining a pair of separately disposed control chambers each of said control chambers connected to one of said intake pressure lines,
• a control line for connecting said switch valve to a pressure chamber to which said charge-air pressure responsive means is exposed,
• a valve member disposed in said switch valve interior for movement by the higher of the charge-air pressures in one of the control chambers into a position for communication of the intake pressure line having the lower charge-air pressure through the control line with the pressure chamber to which the charge-air pressure responsive means is exposed.