Fuel Camshaft; Outline Of Fuel Camshaft; Structure Of Fuel Camshaft; Function Of Fuel Camshaft - Kubota D1803-CR-E4 Workshop Manual

MECHANISM
3. Fuel system

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

3.23.3 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.
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
(3) Fuel cam
(4) Fuel camshaft
4. ENGINE
4-35
KiSC issued 12, 2018 A