Diesel engines have pistons that look different from the ones you'd see with a gas engine. There's a reason why that's the case, and it's all about performance.

[2] A transient numerical study for heat transfer and flow characteristics of dimpled piston cooling gallery of a diesel engine. Case Studies in Thermal Engineering (2023).

Ever increasing specific power of diesel engines has put huge demand on effective thermal management of the pistons for the desired reliability and durability. The piston temperature control is ...