Heli Forklift Engine Parts Supplier Xinchai 490b Diesel Engine Cylinder Head

The cylinder head is installed atop the cylinder block, sealing the cylinders from above and forming the combustion chamber. It frequently comes into contact with high-temperature, high-pressure gases, thus enduring significant thermal and mechanical loads. In water-cooled engines, the cylinder head contains cooling water passages, with coolant holes at the lower end of the cylinder head connecting to those in the cylinder block. This facilitates the use of circulating water to cool the combustion chamber and other high-temperature components.

Cylinder heads are typically made of gray cast iron or alloy cast iron. Aluminum alloy exhibits excellent thermal conductivity, aiding in the enhancement of compression ratios. Consequently, in recent years, aluminum alloy cylinder heads have been increasingly utilized.