Centrifugal force speed governor for internal combustion engines with fuel injection

A centrifugal force speed governor, and in particular idle and maximum speed governors, for fuel injected internal combustion engines, comprising:

• (a) an adjustment member coupled to an assembly including speed responsive means and at least one adaptation spring, for producing displacement of the adjustment member as a function of speed;
• (b) an intermediate lever coupled to the adjustment member, a fuel supply rate adjustment member of a fuel injection pump coupled to said intermediate lever;
• (c) a pivot support;
• (d) a control element mounted to the pivot support and coupled to the adjustment member;
• (e) a stop supported on the governor for limiting the movement of said control element;
• (f) energy storing means for yieldingly biasing the movement of said intermediate lever in one direction;
• and
• (g) a setting linkage to which a pin is mounted for engaging the intermediate lever, the control element and the energy storing means;
• wherein
• (i) the displacement of the adjustment member due to the speed responsive means, when regulated by said at least one adaptation spring, produces a negative adjustment of the fuel supply rate adjustment member opposite the sense of regulation, i.e., in a direction of increasing fuel supply as the angular speed of the governor increases;
• (ii) said negative adjustment being effected, at least for the full-load position of the setting linkage, by the adjustment member in moving the control element which in turn moves the setting linkage pin stressing the energy storing means and moving the intermediate lever;
• and
• (iii) the stop limits the movement of the setting linkage pin due to the engagement of the control element with said stop, while the pivot support allows further control motions of the adjustment member.