Gaseous fuel combustion system and method utilizing a piston reentrant feature for hastened fuel-air mixing

Abstract

A piston includes a piston crown defining a center axis and having a piston rim extending around a combustion bowl. The combustion bowl includes an injection-impingement surface extending a first partial circumferential extent around the axis, a bowl floor extending to a bowl wall, and a reentrant surface positioned opposite the injection-impingement surface and extending a second partial circumferential extent around the center axis. The combustion bowl further forms a fluid dispersion path originating at the injection-impingement surface traversing the bowl floor and the bowl wall and extending to the reentrant surface. A gaseous fuel internal combustion engine and related methodology are also disclosed.

Dependencies are inferred from the claim text.