Daedong CK22, Workshop Manual

Page: 77 / 372

2-25 DS35-W00 May. 2007
CLUTCHCLUTCHCLUTCHCLUTCHCLUTCH
TRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSIONTRANSMISSION
ENGINEENGINEENGINEENGINEENGINE
HSTHSTHSTHSTHST
FRONT AXLEFRONT AXLEFRONT AXLEFRONT AXLEFRONT AXLE
STEERINGSTEERINGSTEERINGSTEERINGSTEERING
BARKEBARKEBARKEBARKEBARKE
ELECTRICELECTRICELECTRICELECTRICELECTRIC
INDEXINDEXINDEXINDEXINDEX
HYDRAULICHYDRAULICHYDRAULICHYDRAULICHYDRAULIC
GENERALGENERALGENERALGENERALGENERAL
REAR AXLEREAR AXLEREAR AXLEREAR AXLEREAR AXLE
CK22/CK22H
d e
D
D
f
Stop
b. Fuel delivery
The plunger is rotated by the control rack and the feed
hole is not aligned with the lengthwise slot. When the
plunger is pushed up, the feed hole is closed by the
plunger. The pressure in the delivery chamber builds
up and forces the fuel to the injection nozzle until the
control groove (6) meets the feed hole. The amount of
the fuel to be forced into the nozzle corresponds to
distance A. In the above figure, the amount of injected
fuel in (c) is larger than the amount of injected fuel in
(b).
T46W240A
(1) Valve spring (4) Fuel chamber
(2) Delivery valve (5) Valve face
(3) Valve seal (6) Relief plunger
D. DELIVERY VALVE
The delivery valve (2) prevents the fuel in the injection
pipe from flowing back into the delivery chamber and
the fuel in the injection nozzle from dribbling after
injection.
The relief plunger (6) sucks the fuel back from the in-
jection pipe to prevent the leakage dribbling and un-
n e c e s s a r y s u b s e q u e n t i n j e c t i o n a f t e r t h e m a j o r
injection.
The stroke of A corresponds to the amount of fuel sucked
back (35 mm
3 ).
T46W241A
C. AMOUNT OF FUEL DELIVERY
a . No fuel delivery
When the control rack (3) is at the engine stop position,
the lengthwise slot (1) on the plunger (2) aligns with
the feed hole (5). The pressure in the delivery chamber
does not build up and no fuel is forced to the injection
nozzle since the delivery chamber (4) is opened to the
feed hole during the entire stroke of the plunger.
(1) Slot (4) Delivery chamber
(2) Plunger (5) Feed hole
(3) Control rack (6) Control groove
T46W239A
4
5
6
2
3
1
Location of fuel
supply hole
Low speed High speed
3
4
1
5
3
2
6
ENGINE - OPERATING PRINCIPLE