Ferrari has filed a patent for an engine with oval-shaped pistons. The design shortens powertrain length without losing ...

Ferrari has filed a patent for an engine with pill-shaped pistons, a radical departure from traditional circular piston ...

Besides the fact that there are no fuel-air explosions involved, these pistons are also double-acting thanks to a valve mechanism that switches the pressurized side of the piston as it reaches the ...

The object of the invention herewith illustrated is to provide for steam engine governors and steam pressure regulators a simple and reliable balance valve for controlling the flow of steam.