venttiilipäästä
Venttiilipäästä is a Finnish term that translates directly to "valve head" or "cylinder head" in English. In the context of internal combustion engines, it refers to the component that encloses the combustion chamber and houses the valves, spark plugs (in gasoline engines), and injectors (in diesel engines). It is a critical part of the engine, responsible for controlling the intake of fuel-air mixture and the exhaust of combustion gases.
The venttiilipäästä typically sits atop the engine block, forming a seal to contain the pressure generated
Materials used for the venttiilipäästä vary, with cast iron and aluminum being the most common. Aluminum offers