Governor; Construction And Operation - Robin EC05-2 Service Manual

8. GOVERNOR
8-1 CONSTRUCTION and OPERATION
In the model EC05-2, 07-2, 10, 17 and 25-2 engines, a centrifugal flyweight type governor is used. The governor plate com-
plete, governor sleeve and governor arm are installed in the governor chamber (EClOD, lev, 17D and 25-2D), in the crank-
case (EC05-2D, 07-2D) or i n the reduction chamber (type B and V), and lubricated by the lubricating oil (in the model
EC05-2, 07-2, by the mixture fuel).
As
the engine speed fluctuates, flyweight on the governor plate complete, rotating together with the crankshaft, changes its
opening angle and moves the governor sleeve, which in turn rotates the governor shaft through the governor arm. The gover-
nor lever
is connected to the extending part of the governor shaft and this governor lever is connected to the carburetor throt-
tle lever through the governor rod at the other end; thus the throttle valve is opened or closed and engine speed and output
are controled.
When the crankshaft rotation increases, all the relevant members move
in
the direction indicated by-marks and the car-
buretor throttle valve closes, reducing the fuel supply and consequently reducing the speed and output. When the crankshaft
rotation decreases, the same members
moie in
the direction indicated by-- --marks and the carburetor throttle valve open,
increasing the fuel supply and consequently recovering the failing speed and output.
GOVERNOR ROD SPRING GOVERNOR ROD
THROTTLE LEVER
THROTTLE VALVE
CARBURETOR
GOVERNOR LEVER
FLYWEIGHT
GOVERNOR ARM STOPPER PLATE
CRANKSHAFT
HIGH SPEED STOPPER
GOVERNOR SLEEVE
GOVERNOR SPRING
BOLT
CONTROL LEVER-
Fig. 8- 1- 1 Model ECO5-2, 07-2
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