Manufacturers include but are not limited to Mann B&W, Wasilla, Sulzer, White Stork, Mitsubishi, Pierrick, Bergen, Yoma Engine, Daihatsu, Wheat, General Electric, Delay Bach, Walker Sand, Caterpillar, Cummins. Usually, camshafts are made of high-quality carbon steel or alloy steel, but they can also be cast from alloyed or ductile iron. A camshaft journal and CAM working surface should not only have higher dimensional accuracy, smaller surface roughness, enough stiffness, but also have higher wear resistance and good lubrication. Contact stress between CAM and tappet column is very high, and relative sliding speed is also very high, so the wear of the CAM working surface is more serious. Periodic impact loads are applied to the camshaft. Therefore, the crankshaft must have enough strength and stiffness, and the journal surface must be wear-resistant, uniform, and balanced. Crankshafts are subject to the combined force of rotating mass, gas inertia force of periodic change, and reciprocating inertia force, which results in bending torsional loads. It converts the force from the connecting rod into a torque that drives the crankshaft and other components of the engine. In addition, the system allows for the installation of valve parts and accessories, such as seat holes.Įngines are powered by their crankshafts. For tightening the cylinder head, a bolt through hole is drilled around the circumference of the cylinder head. Some are also equipped with an anti-corrosion zinc block to prevent corrosion of the cooling water. A cover plate prevents debris from entering the cooling water chamber. To facilitate the removal of dirt from the cooling water chamber, a cleaning hole is provided on the external wall. According to its manufacturing method, it can be divided into casting type and forging type.Ī cooling water chamber has a more complex structure, including a cooling water cavity, an inlet, an exhaust channel, etc.If it is distinguished by its composition, it has integral, monomer and combined.Different models are available with fuel injectors, safety valves, test valves, inlet valves, exhaust valves, and starting valves among other instruments and accessories.Ĭylinder heads have more structure types, and distinguishing methods differ from one another. Cylinder heads are part of the combustion chamber and are installed on the top of the cylinder, the cylinder and piston in power machinery.

Daihatsu 3 cylinder diesel engine parts