Function Of The Centrifugal Governor - Bukh DV36/48 Workshop Manual

H9

Function of the Centrifugal Governor

The revolutions of the engine are transmitted by the drive shaft (2) through gear-wheel to the
governor weights (8) and are transformed into centrifugal force there.
With stopped fuel pump, the starting lever (21) and the governor slide (24) are pressed into start
position by the starter spring (20). Through this automatic ful volume, when starting, is obtained.
When the r.p.m. of the engine goes up after start the function of the weak starter spring (20) is
taken over by the pressure from the governor bush (6). By this the starting lever (21) is pressed
against the clamping arm (19) and the starting volume is automatically declutched as the governor
slide (24) is displaced.
At low idling the governor spring (9) is not working.
The regulation is controlled by the idle spring (18).
By setting the governor spring (9) more or less with the timing lever (10) a lower or higher r.p.m.
is adjusted. The idle spring is pressed together.
The idling volume is adjusted by the adjusting screw (11) and the full load volume by the adjusting
screw (17).
Max. r.p.m. is adjusted by the adjusting screw (12).
The pump is stopped by means of a stop magnet built on to the fuel pump (not shown on the
sketch). This magnet closes the inlet port to the high pressure chamber in the distributor head at
electrical activation resulting in a dead stop magnet.
009W2329.XLS