Weifang 495 - Page 84

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function

of

the

gove.rnor

·IS

to

ensure

reliable

engine

operation

at

specified

speed

while

engIne

load

.varies •

and

define

th.e

maXImum

and

the

idling

speed.

~------.

18

-"""-

20

r-

I

1

-

,

Fig.

21

Governor

1--·'

-Stop

lever;

2-·

.

Governo,r

spring

;

3-·

-Governolcontrol

s'haft;4'-'-

..

-'

GoVern'Of

control

lever;

5---:.-

Control

rod;

6--

Start

spring;

7-'

Stop

spring;

8-,~

G~'ve~nor

housing;

9--

Driving

plate

and

connecting

sleeve;

10--

Camshaft;

11-

Steel

ball;

12--

Driven

plate;

13-"

prain

plu,g

~

14--

Governor

cover;

15--

Push

CUp}

16-

Correcting

scre~7

and

spring;J

7--'~

La,\"

speed

stop

screw;

18--

High

speed

stop

screw;

19--Breather

and

filler':; 20-"

·-

..

-ljnking

plate.

The

Driv'ing

pl~te.

and

th'e

con.necting

sleeve

are

fixed on the

camshaft

of

the

injec,t.ion

pump

..

There

are

six

steel

balls

which

can

slide

along

theirradi-al

races

in

the

driving

plate.

When

e~gin,e

load

drops

and

speed

rises.,

the

steel

balls

slide

further

apart

under

the

actibn

of

centrifugal

'force.

This

makes

the

dri"ven

plate

to

over-

come

the

force

of

the

governor

spring

and

move

backward

,so

that

the

control

rod

of

the

pump

is

pulled

backward

through

the

linking

plate

arld

the

quantity

of

fuel

delivered

by

the

plunger

decreases

and

the

engine

speed

drops

corres

pondingly

It

and

vice

versa;

there-

4,9

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