architecture for compression ignition engines, in particolareutilizzabile on aircraft by tourism

摘要

The camshaft of the engine is located centrally and longitudinally in the crankcase, parallel to the crankshaft, and besides operating the valvegear, provides the drive for a fuel injection system of which the pump consists in a number of independent elements, one per cylinder, engaging directly with the camshaft at one end and connecting at the other with feed pipelines of identical length which are routed to injectors installed each with its nozzle end trained directly into the relative combustion chamber; formed in the piston crown, the chamber is designed with a cross-sectional profile of upturned omega shape, the effect of which being to create a rounded rim of smaller diameter than the remainder of the chamber, and with the base incorporating a centrally located bulge projecting back toward the head, a cavity of doughnut geometry materializes into which the fuel is injected directly.