4.2.5 Cylinder head with injector
1 Cylinder head
2 Hold-down clamp
3 Injector
4 HP fuel line
5 Fuel return line
6 Valve guide
7 Intake valves
8 Sealing ring
9 Exhaust valves
10 Plunger
a Charge-air
b Exhaust gas
c Coolant
d Engine oil
Cylinder head with injector
The cylinder heads containing the valve gear and fuel injection equipment are mounted on the crankcase.
Coolant for cylinder head cooling as well as engine oil for valve gear lubrication are supplied from the crank-
case.
Fuel is supplied to the injectors by the HP fuel pump via a common pressure accumulator. Fuel flows to
through HP lines to the injectors.
Technical data
• Individual cylinder heads
• Two intake and exhaust valves
• Centrally located fuel injector
• Additional cooling bores to cool compression face and valve seats
• Cylinder liner joint with metallic seal
• Engine oil and coolant transfers between crankcase and cylinder head sealed by gasket
Benefits
• Designed for high ignition pressures
• Low fuel consumption
• Low exhaust-gas index and exhaust-gas emissions
• Long maintenance intervals
MS15065/01E 2019-01
| Series 4000 Engines | 49
TIM-ID: 0000072263 - 001
