Cam 1 rotates about fixed axis A. Lever 2 turns about fixed axis B of component 7 and its roller b rolls along the surface of cam 1. Lever 2 has profiled surface d along which roller a of connecting rod 3 rolls. Connecting rod 3 is connected by turning pair C to slider 4. Link 5 is connected by turning pairs E and F to connecting rod 3 and to rocker arm 6 which turns about fixed axis K. When cam 1 rotates, lever 2 oscillates. Slider 4 is linked to the plunger of the fuel delivery pump. Fuel delivery can be regulated by turning rocker arm 6. This varies the stroke of slider 4 and, consequently, the amount of fuel delivered per stroke.
$3975$LHP,FD$