These are strong enough to be used in competition engines. They are used in high-performance automobiles. The oval skirt and undulated skirt are designed to provide high strength. For additional strength, some high-performance pistons also have special skirt configurations. Piston forms a guide and bearing to the small end of the connecting rod and takes the side thrust due to the obliquity of the rod.Ĭonsidering all these factors together, it can be seen that the forged piston is the preferred piston for high-performance engines.Piston reciprocates in the cylinder as a gas-tight plug generating suction, compression, expansion, and exhaust strokes.Receive the thrust produced by the combustion of the gas in the cylinder and transmit it to the connecting rod.Read also: List of Car Engine Parts: Its Function (With Pictures) The Piston Performs The Following Functions The piston should be as strong as possible, however, its weight should be minimized as far as possible in order to reduce the inertia due to its reciprocating mass.

It must operate in the cylinder with minimum friction and it should be able to withstand the high explosive force generated in the cylinder and also the very high temperature ranging from 2,000☌ to over 2,800☌ during operation. The efficiency and economy of the engine depending on the working of the piston. Although the piston seems to be a simple part, it is actually quite complex from a design standpoint. It has a piston ring to provide a good seal between the piston and cylinder wall. The piston is basically a cylindrical plug that moves up and down in the cylinder.

4.6 flycut pistons