3
-24
SUUV-W00
Apr. 2011
SAFETY
FIRST
GENERAL
ENGINE
CVT
TRANSMISSION
CHASSIS
REAR AXLE
BRAKE
FRONT AXLE
STEERING
HYDRAULIC
ELECTRIC
INDEX
A. PUMP ELEMENT
B. OPERATION OF PUMP ELEMENT
(1) Pump element
(5) Control sleeve
(2) Cylinder
(6) Control groove
(3) Plunger
(7) Sliding surface
(4)
Feed
hole
The pump element (1) consists of a plunger (3) and
cylinder (2) which their sliding surfaces are finely
machined to maintain the fuel tightness. The plunger
(3) is installed in the control sleeve (5) and the sleeve is
engaged with the control rack that rotates the plunger in
the cylinder to control the amount of fuel delivered.
(1) Delivery chamber
(4) Feed hole
(2) Plunger
(5) Fuel chamber
(3) Delivery valve
(6) Control groove
a. Before delivery
As the plunger (2) lowers, fuel is drawn into the delivery
chamber (1) through the feed hole (4) from the fuel
chamber (5).
b. Beginning of delivery
When the plunger is pushed up by the cam and the head
of the plunger closes the feed hole (4), the pressure in the
delivery chamber (1) rises to push the delivery valve (3)
open.
c. Delivery
While the plunger (2) is rising, delivery of fuel continues.
d. End of delivery
When the plunger rises further and the control groove (6)
on its periphery,meets the feed hole, the injection stops
because the pressure in the delivery chamber (1) is
reduced to the opening pressure.
ENGINE - STRUCTURE AND FUNCTION
4
5
6
7
2
3
1
T46W237A
3
6
5
1
2
4
T46W238A
UTV(EZGO향)_03_ENGINE.indd 24
UTV(EZGO향)_03_ENGINE.indd 24
2011-04-04 오후 3:42:06
2011-04-04 오후 3:42:06
Summary of Contents for 1600xd
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