This 3D model is a representation of a piston head found in internal combustion engines. Some important parts of the piston head are discussed in greater detail below.
Due to its location, the piston crown encounters significant pressures and temperatures. The design of the crown varies considerably, as many crowns have a unique topography to distribute the exhaust gasses created by the combustion process.
Piston Ring Groove
The piston rings are located in the piston ring groves. Note that the piston rings for this model are not displayed.
Piston Pin Support
Piston pin supports are used to spread the pressure over a larger contact surface area, this reduces the probability of piston cracking/failure.
The type of skirt shown here is a ‘full’ skirt.
Hole For Piston Pin
The piston pin slides into this hole. The pin connects the piston rod to the piston.
Oil is circulated inside the piston head to remove the heat generated during the combustion process.
Piston Pin Cover
Sometimes a cover will be used to seal the piston pin. C-clips are used to hold the seal in position.
Piston Skirt Reinforcement
Additional reinforcement/support reduces the probability of failure due to cracking.