What is the Piston Ring End Gap?

[VanRowan]

Piston ring end gap, also known as the ring gap. It refers to the gap at the joint of the piston ring when the piston is inside the cylinder. Below is additional information: 1. Forces: The forces acting on the piston ring include gas pressure, the ring's own elasticity, the inertial force from the reciprocating motion, and the friction between the ring and the cylinder as well as the ring groove. Due to these forces, the ring will undergo basic movements such as axial motion, radial motion, and rotational motion. 2. Thermal Conductivity: The high heat generated by combustion is transferred to the cylinder wall through the piston ring, thus helping to cool the piston. The heat dissipated through the piston ring to the cylinder wall generally accounts for about 30 to 40% of the heat received at the piston top.