GOVERNOR
With centrifugal ball weight system this mechanical governor works
in
the whole range of speeds.
It keeps the engine speed and controls the engine output.
At
Start
When the engine is started, more fuel is required than
in
running.
At
starting, fork lever 1
is
pulled rightward by starter spring because ball weights have
no
centrifugal force. Control rack
moves to a position for
overlimit discharging of fuel
to
assure easy starting.
At
start
1.
Ball Weights
2.
Start Spring
3.
Fork Lever 1
4.
Control Rack
At
Idling
When speed control lever
is
set
at
idling position after the engine is started, high speed
governor spring 1 does not work
at
all and also low speed governor spring 2 does only a
little action. Therefore, governor sleeve is pushed leftward by a centrifugal force of ball
weights.
Fork
lever 1 and control rack are moved leftward by the sleeve and then idling limit
spring is compressed by control rack.
As
a result, the control rack
is
kept at a position where
a
centrifugal force of ball weights and forces start spring, governor spring 2 and idling limit
spring are balanced, providing stable idling.
At
idling
1.
Speed Control Lever
2. Governor Spring 1
3.
Governor Spring 2
4.
Ball Weight
5.
Governor Sleeve
6.
Fork Lever 1
7.
Control Rack
8.
Idling
Limit
Spring
9.
Start Spring
47
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