Patent ID: 6513475
Filing Date: 2003-02-04
Classification: F01L

Abstract:
A rotary valve engine with a four stroke cycle, said rotary valve engine comprising:(a) an engine block having at least one combustion chamber; (b) a drive member mounted in said combustion chamber; (c) a crankshaft rotatably mounted to said engine block and driven by said drive member; (d) a disc-type rotary valve mounted on said engine block; (e) an intake passage formed in said rotary valve for directing air into said combustion chamber as said rotary valve rotates; (f) an exhaust passage formed in said rotary valve for exhausting combustion gases from said combustion chamber as said rotary valve rotates; (g) a head mounted to said engine block and surrounding said rotary valve to enclose at least a portion of said combustion chamber; and (h) seals extending around said combustion chamber and seating against the bottom surface of said rotary valve; (i) at least one rotary valve seal around the circumference of said rotary valve seating against said head.