6-3 CYLINDERHEAD
Fig. shows both outlook and construction of the cylinderhead for DK-36.
Being made of special cast iron, the cylinder head is provided with drilled passage for bore cooling in the thick bottom deck for the purpose of withstanding the high combustion pressure instead of current middle deck design.
The cylinderhead is hydraulically tightened with four stud bolts,and has adequate height so that the deformation on the combustion surface can be kept to minimum, effectively reducing both thermal and mechanical stress level on the surface. This design also provides even contact between valves and seats so that the maintenance intervals can be extended substantially.
The pipings to and from the cylinder head, such as fuel supply return and nozzle cooling are replaced by drilled passages in the upper deck, thereby reducing time for assembly/ disassembly. The rocker arm is lubricated with engine system oil and L.O. is prevented from contamination with fuel.
Swing arm type valve gear is employed for minimum wear, simple construction in a small space.
The cylinderhead can be attached/detached with valve gear and charge air connector in tact.
