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
ha
s a roller , these t
wo
symmelri
c
aUy
,",nged
fl
yweights are capable
of
pushing
on
the
flanged
f3ce
of
s.
leeve by their rollers through
rollmg
contact.
®
,..oui
de
!e'/
tr
2-Ball
bOil
ring
3-Con
tr
~
blo!;l.
4·Flyweighu
@'
&·We
l
gha
'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 related 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)
mo
re
or less through sleeve. In
olher
words, the
rotating, speed
is
translated ill
to
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
sp
eed
.dependent move-
ment
of
guide
lever
is
transmiltcd to the control
rack
of lhe i
nj
ection pump.
To
do so,
we
must
take
note of
leverS
and
springs
inten1ening
in
this
transm
iss
ion. To
be
txamine-d
:He
these levers and
springs: adj
us
ting
SCftW
(.elated to
torque
control
lever. torque
sp
ring
on
ad
justing s
crew
; guide lever;
tension lever; c.onno] lever; idl
ing
spring;
adaptor
spring;
cont
rol spring; swi\'eling
Ie.\ler~
s.tart spring.
l
-A
dju
stino
Icnt'w
2·
T
o '~
u
e
iPr
ing
3·G\Jil!~
Jeve
r
4·T
en~
ion
laV
M
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
$t09~r
12
·F
lywtights
13-Conno
l
spri"
g
14 ·Swi
ve
ling lever
15
·$
hlek
)e
16 ·
Con{fol
rllck
17.Starl
,p~lng
18-GovtrnOI housIng
1
9·Ad.lptor
2O
-l
~k
nut
GovernOr
-
Cross
s'!clion
Al
l 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
contro
l
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 hou
si
ng
as
if
it
wert a cus.hion for
the tension )ever.
The sh
aft
by
which
the
s
wi
veling lever t
urn,
ext
en
ds
through the housing and, out
s.i
de
the
housing,
is
grip
ped
by
th
e adjusting lever. Turning
this
lever turns
the
swiveling lever inside. I: is
to
[his adjusting lever
that
the accel
erator
(lever
Or
pedal) is linked ;
and
it
is
by turning
lili,
adjuSling
lev~
r
tha
t the governed speed
is
manually
raised
To Next Page
Loading...
