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 ...

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.

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 ...