초록 ▼

An internal combustion engine having an annular port and valve arranged to direct flow from dual inner and outer portions of the port in cylinder flow patterns having radially oppositely directed flow components. Various embodiments providing cylinder charge stratification or dual inlet and exhaust

An internal combustion engine having an annular port and valve arranged to direct flow from dual inner and outer portions of the port in cylinder flow patterns having radially oppositely directed flow components. Various embodiments providing cylinder charge stratification or dual inlet and exhaust valve functions are disclosed.

대표청구항 ▼

An internal combustion engine having in combination means defining a closed end cylinder having an axis with a piston reciprocable therein, an annular port in said cylinder closed end having an axis substantially coincident with the cylinder axis and having concentric fixed annular valve seats at th

An internal combustion engine having in combination means defining a closed end cylinder having an axis with a piston reciprocable therein, an annular port in said cylinder closed end having an axis substantially coincident with the cylinder axis and having concentric fixed annular valve seats at the inner and outer edges of said port, a valve cooperatively associated with said port and having an annular head surrounding said inner edge valve seat and a tubular stem extending from the head and reciprocably supported in the cylinder closed end, said stem extending through and dividing said port into separate annular inner and outer portions, said head being seatable on said valve seats to close the port inner and outer portions against communication with the cylinder and being movable away from said seats upon reciprocating movement of the stem to permit such communication, whereby actuation of said valve opens and closes communication of said cylinder with said port inner and outer portions in unison, and first and second fluid supply means connected respectively with said port inner and outer annular portions to supply separate fluids thereof, said head extending radially beyond the inner and outer extremes of adjacent portions of said stem and said port to deflect fluids entering the cylinder from the port inner and outer portions into flow patterns having radial components extending respectively inwardly and outwardly from the valve adjacent to the cylinder closed end so as to develop separate oppositely oriented inner and outer toroidal fluid patterns within the engine cylinder.