S exhaust valve. v spiral spring which connects the Venlil and the control rods. a joint of the small lever arm. smaller lever arm for moving the knife-shaped portion of the control rod. c spiral spring which causes the return movement of this part. V ram (just described: with rollers provided lever of the control rods is The roller omitted for clarity.). S 'fixed
Fulcrum of the hammer of gesteurerten m lever arm. C one of the cams on the camshaft