condition,
will
push back the shifter from
the
tension-lever which
is
contacted with the
idling-sub-spring. Accordingly, the stroke of the control-rack
will
become larger automati-
cally.
Whether the pin attached to
the
lower end of the floating-lever with wax
will
be inserted
in
the
slot of the supporting-lever on the shaft
of
the stop-lever or it
will
be supported so
that
it
will
act
at
the fork part which
is
pushed into the. governor cover,
will
be
fixed
as
to
whether or
not
the governor has
the
stop-device. A governor
of
standard size has no
stop-device. But the device
will
be
necessitated when you want
to
pull back the control-rack
of the injection pump with a slight power without regarding the position of control-lever of
governor or
to
use the stopper-bolt
as
the stopper
of
the limit of the idling r.p.m.
(2)
PRINCIPLE OF OPERATION
The
principle of
the
governor operation
is
as
follows:
When the r.p.m.
of
engine increases and its centrifugal foece becomes larger than the
spring force, the flyweight
will
spread outside. When the r.p.m. decreases the centrifugal
foece will decrease and consequently the controlling power of the governor spring
will
become stronger so
that
if folds itself inside again.
The
action of the flyweight
is
transmitted
to
the
control-rack through the guide-bush,
shifter and link. And
the
control-rack, when
the
r.p.m. of engine increases,
will
be
moved in
the stop direction. Then
the
r.p.m.
is
limited because the injection pumpsupplies smaller
amount
of
fuel. When
the
r.p.m. of engine decreases the process
will
be
reversed. This
RSV,
as
an all-spread governor, controls the rotations of
all
kinds covering from the idling r.p.m.
to
the maximum r.p.m. outomatically.
If the driver
or
the
operator of the machine will adjust once the control-lever at the
necessary engine r.p.m. by operating pedals or handles, then the governor
will
adjust the
r.p.m. automatically.
Now let
us
explain the special operating conditions by taking
up
severa, cases for
example. Fig. 3
is
the performance curve of these operations.
-
37-
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