Centrifugal governor particularly for altering the moment of injection start in diesel engines

Claim 1

A centrifugal governor for varying the phase angle in an rpmdependent manner between a driving shaft and a driven shaft axially aligned therewith, comprising A. at least one centrifugal weight, B. means securing said centrifugal weight to a first one of said shafts for rotation as a unit therewith, said means permitting a movement of said centrifugal weight away from the rotary axis of the governor in response to an increase in the rpm of said last-named shaft, C. means defining a curved track affixed to the second one of said shafts, D. means for connecting said centrifugal weight with said curved track for controlling the rpm-dependent shift of the phase angle as a function of the configuration of said curved track, E. means defining a recess, said last-named means being affixed to the first one of said shafts, said recess being bounded by an edge and being spaced and separate from said curved track, said edge being remote from said rotary axis, F. a pin affixed to said centrifugal weight, with one end portion thereof extending into said recess, and the other end portion thereof comprising said means for connecting said centrifugal weight with said curved track, said pin moving across said recess towards said edge upon movement of said centrifugal weight in response to an rpm change, and G. an abutment ring of predetermined outer diameter secured to said end portion of said pin, said abutment ring arriving into contact with said edge during the course of outward motion of said centrifugal weight in response to an rpm increase, the cooperation between said edge and said abutment ring limiting the change of phase angle to a predetermined value as a function of said outer diameter.