To limit the excessive increment of fuel forcibly fed to and delivered into a combustion chamber so as to suppress occurrence of a black smoke when rapidly moving backward for the purpose of increasing fuel forcibly fed to and delivered into the combustion chamber, by limiting the constant or more escape movement of a shaft.

A governor fuel increasing amount movement limiting device for an injection pump is characterized by such that a flyweight 3 and a thrust piece 4 are attached at one end of a camshaft 2 by which an injection pump 1 is driven, an intermediate part in the vertical direction of a floating arm 5, which is swingably projected from a machine frame to an upper part, is abutted on the thrust piece 4, a control link 6 is journal at the upper end of the floating arm 5, and the end of a hook 9 extended from a tension arm 8 is engagedly attached to the journal part 7.