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CONSTRUCTION AND
FUNCTION
(5) Construction
detail.
30
a.
Flywheighl device
The
two
flyweights
are mounted on bushing keyed
to
camshaft and secured by round nut. Since each
flyweight
C.an
turn
around the Sh3ft
, and
because
its
inner
lip
has
a roller
,
these two
symmelricaUy
,",nged
fl yweights
are capable of pushing on
the
flanged f3ce of s.leeve
by
their
rollers
through
rollmg contact.
®
,..ouide
!e'/tr
2-Ball
bOilring
3-Con tr~
blo!;l.
4·Flyweighu
@'
&·Welgha 'upponlng
shaft
6-Roller
\
(~)
/Q:
cv
7.cl!lm ~ah
8-Go\~
l"l
or
housing
9·C<lm:lil~ft
bushtng
10-GCI ... e-tflo, slei;lve
11·Aound
nut
Flyweighu
and
re lated
pnrts
Sleeve is arrangtd to
slide
axtaily
along bushing
and
rotale
around
control
block,
there
being
provided
a
ball
bearing between
sleeve
and block
.
The outer end of block
is.
pinned to guide lever.
Thus,
Oyweights spread apan more
or
less depend
.
ing On the running
speed
of
camshaft
,
and push
conlrol block (toward the right
in
the
illustration)
more
or
less through
sleeve.
In
olher words, the
rotating, speed is translated
illto
a
lineaT
force and
hence
a
resw
ta
nt
linear movement of block
by
the
medium of centrifugal
force m opposition to
the
force of spring,.
b.
LevetO
and 'prings
We are
now to
sec: how the
speed.dependen
t
move-
ment
of
guide lever is transmiltcd to
the
control
rack
of lhe injection pump
.
To
do
so, we
must
take
note
of
leverS
and
springs inten1ening
in
this
transm ission.
To
be
txamine-d :He
these levers and
springs:
adj
us
ting
SCftW
(.elated
to
torque control
lever.
torque
spring on
adjusting
screw
;
guide
lever;
tension
lever
;
c.onno]
lever;
idling spring; adaptor
spring;
cont
rol
spring
;
swi\'eling
Ie.\ler~
s.tart
spring.
l
-Ad
ju
stino
Icnt'w
2· T
o'~
u
e
iPri
ng
3·G\Jil!~
Jever
4·Ten~
ion
laVM
5-To-rqlJe
CCIf'Hrol
leve,
G-Pin
A
?..contro'
le1lll'1
a·ldllng sprinolj
9·T
.",lol'I
I~r
pin
I
D·Adaptor
spnng
11
·
FtJll·loi!ld
$t09~r
12·
F
lywtights
13-Connol
spri"g
14
·Sw
iveling
lever
15·$hlek)e
16 ·Con{fol
rllck
17.Starl
,p~lng
18-GovtrnOI
housIng
19·Ad.lptor
2O
-l
~k
nut
GovernOr
-
Cross
s'!clion
All
these
levers are:
movable,
each being pivoted
to
the s.tationary
part of the
governor
at its. top
or
bottom end and pinned
10
another
lever
at
it.s
other end
or intermediate
point.
Tens.ion lever and
gUide
lever aie:
pendent
flom a
common pivOI shaft
(lever
supporting
shaftl·
Control
lever
pivots on a fork Joint (siationilry)
by
its.
bottom end
,
and Its
in(ermedia
te
point
is
pinned to
3.
halfway point of gUide
lever,
whose
bottom
end
is
pinned
to
lhe control
block,
as
mentioned
before.
The
top
end of control
(ever
is linked
to
control
rack through
shackle.
Control
spring is hooked
between swiveling lever and
lension
ievel.
Start
Spling is hooked between the top end
of control
lever
and a stationary anchor
pOint.
Adaptor
spring
is
mounted inside the tension level
,
and
opposes the contr
ol block.
Idling spring
is
mounted
in
the
governor housing
as
if
it
wert a
cus.hion
for
the
tension )ever.
The shaft
by
which
the
swiveling lever
t
urn,
extends
through the
housing and,
out
s.ide
the
housing, is
gripped by the adjusting lever.
Turning
this
lever
turns
the
swiveling
lever
inside
.
I:
is
to
[his
adjusting lever
that
the accelerator
(lever
Or
pedal)
is
linked
;
and it
is
by
turning
lili,
adjuSling
lev~
r
that
the governed
speed
is manually raised
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