3
-25
SUUV-W00
Apr. 2011
SAFETY
FIRST
GENERAL
ENGINE
CVT
TRANSMISSION
CHASSIS
REAR AXLE
BRAKE
FRONT AXLE
STEERING
HYDRAULIC
ELECTRIC
INDEX
D. DELIVERY VALVE
C. AMOUNT OF FUEL DELIVERY
b. Fuel delivery
(1) Valve spring
(4) Fuel chamber
(2) Delivery valve
(5) Valve face
(3) Valve seal
(6) Relief plunger
(1) Slot
(4) Delivery chamber
(2) Plunger
(5) Feed hole
(3) Control rack
(6) Control groove
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.
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 fi gure, the amount of injected fuel in (c) is larger
than the amount of injected fuel in (b).
The delivery valve (2) prevents the fuel in the injection
pipe from fl owing 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 injection
pipe to prevent the leakage dribbling and unnecessary
subsequent injection after the major injection.
The stroke of A corresponds to the amount of fuel sucked
back (35 mm
3
).
ENGINE - STRUCTURE AND FUNCTION
4
5
6
2
3
1
T46W239A
3
4
1
5
3
2
6
T46W241A
d
⭠ⴋ
⭋ⓘ
ါⓘ
⤻ᰗ#၀ᅔ#
Ⴗᶘ⪣#⩏ㆣ#
e
D
D
f
Stop
Low speed
High speed
Location of fuel
supply hole
T46W240A
UTV(EZGO향)_03_ENGINE.indd 25
UTV(EZGO향)_03_ENGINE.indd 25
2011-04-04 오후 3:42:07
2011-04-04 오후 3:42:07
Содержание 1600xd
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