Fuel Feed Pump; Fuel Injection Pump - Daedong Kioti LK30 Workshop Manual

LK30

3.4.4 FUEL FEED PUMP

The diaphragm (6) is linked to the tappet (3) with the
push rod (2). The tappet is reciprocated by the eccen-
tric cam on the fuel camshaft (7).
A. INTAKE STROKE
When the diaphragm is pulled down by the spring,
vacuum in the chamber (5) causes the exhaust valve
(4) to close and the atmospheric pressure in the fuel
tank to force the fuel into the chamber, opening the
intake valve (1).
B. DISCHARGE STROKE
When the diaphragm is pushed up by the cam, the pres-
sure in the chamber causes the intake valve to close
and forces out the fuel, opening the exhaust valve.

3.4.5 FUEL INJECTION PUMP

This fuel injection pump is Bosch K type fuel injection
pump. It features a compact and light weight design.
SS41-W00 May. 2007
ENGINE - OPERATING PRINCIPLE
(A)
1
2
(1) Intake valve
(2) Push rod
(3) Tappet
(4) Exhaust valve
(a) To injection nozzle
(1) Delivery valve holder
(2) Delivery valve spring
(3) Delivery valve
(4) Cylinder
From fuel filter
4
5
6
3
7
(5) Chamber
(6) Diaphragm
(7) Fuel camshaft
a
b
6
7
8
(b) From fuel filter
(5) Plunger
(6) Control rack
(7) Plunger spring
(8) Tappet
(B)
To fuel injec-
tion nozzle
T46W235B
1
2
3
4
5
T46W236A
2-21