7.
-GOVERNOR
0
7-1
CONSTRUCTION
AND
OPERATION
A
centrifugal flyweight type governor
is
used. The governor plate, governor sleeve and governor yoke are
installed
in
the crankcase, and lubricated
by
the oil mixed fuel.
As
the engine speed fluctuates, flyweights on the governor plate, rotating together with the crankshaft,
changes its opening angle and moves the governor sleeve, which in turn rotates the governor shaft
through the governor
yoke.
The governor lever is connected
to
the extending part
of
the governor shaft
and this governor lever is connected to the carburetor throttle lever through the governor rod at the other
end
;
thus the throttle valve
is
opened or closed and engine speed and output are controlled.
When the crankshaft speed increases, all the relevant' members move in the direction indicated
by
C
marks and the carburetor throttle valve
closes,
reducing the fuel supply and consequently reducing the
speed and output. When the crankshaft speed decreases, the same members move
in
the direction
indicated by
r)
marks and the carburetor throttle valve
opens,
increasing the fuel supply and consequently
recovering the failing speed and output.
Fig.
7-1
-
33
-
To Next Page
Loading...
Need help?
General
