Motorcycle piston What is the role

Motorcycle piston ring force gas pressure, the ring itself elastic, ring reciprocating motion inertia, ring and cylinder and ring groove friction and so on. As a result of these forces, the ring will generate axial, radial and rotational movements. In addition, the motorcycle piston ring due to its movement characteristics, along with the irregular movement, inevitably occur due to axial irregular motion caused by the suspension and axial vibration, radial irregular motion and vibration, torsion and so on. These irregular movements often prevent the motorcycle piston ring from functioning.

    Supportive

    Because the piston is slightly smaller than the cylinder diameter, if there is no motorcycle piston ring, the piston in the cylinder is not stable, it is impossible to move freely. At the same time, the ring should prevent the piston from directly contacting with the cylinder, and play a supporting role. Therefore, the motorcycle piston ring up and down in the cylinder movement, the sliding surface of the loop borne entirely.

    Thermal conductivity

    The high heat generated by the combustion is transmitted to the cylinder wall through the motorcycle piston ring so that the piston can cool the piston. Through the motorcycle piston ring to the cylinder wall heat, generally can withstand the top of the piston to withstand 30 to 40% of the heat.

    Oil control

    The second function of the motorcycle piston ring is to properly scrape the oil attached to the cylinder wall and maintain the normal fuel consumption. When too much oil is supplied, it is sucked into the combustion chamber to increase fuel consumption, and the effect on engine performance is very bad due to carbon deposition caused by combustion.

    Tightness

    The first function of a motorcycle piston ring is to maintain the seal between the piston and the cylinder wall to minimize air leaks. This role is mainly borne by the gas ring, that is, the engine under any operating conditions, the compressed air and gas leaks should be controlled to a minimum, in order to improve thermal efficiency; to prevent leakage caused by the cylinder and piston or between the cylinder and the ring Bite death; to prevent the deterioration caused by lubricating oil and other failures.