Kubota D1803-CR-E4 - Fuel Camshaft; Function of Fuel Camshaft; Outline of Fuel Camshaft; Structure of Fuel Camshaft

3.23 Fuel camshaft
3.23.1 Outline of fuel camshaft
The fuel camshaft push the tappet roller of supply
pump to compress the fuel.
3.23.2 Structure of fuel camshaft
The fuel camshaft is made up of a fuel camshaft,
supply pump gear and cam pulsar gear.
(1) Cam pulsar gear
(2) Supply pump gear
(3)
Fuel cam
(4) Fuel camshaft
3.23.3 Function of fuel camshaft
The camshaft push the tappet roller of supply pump to
compress the fuel.
The shape
of fuel cam is rounded square and fuel cam
push the tappet roller of supply pump four times per
one rotation.
The rotation of the gear at the end of the crankshaft is
transferred to the supply pump gear and the fuel
camshaft rotates synchronized with the crankshaft.
The fuel camshaft rotates once for every two rotations
of the crankshaft.
MECHANISM
3. Fuel system 4. ENGINE
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
4-35
KiSC issued 12, 2018 A