Patent ID: 6848413

Claim:
An internal combustion cylinder assembly comprising: a cylinder having a combustion chamber at an end thereof; a piston disposed slidably within said cylinder, said piston having a top dead center position substantially proximate to said combustion chamber and a bottom dead center position substantially distal from said combustion chamber; an intake runner connected communicably to said combustion chamber via an intake valve, said intake runner providing a working fluid to said combustion chamber while said intake valve is substantially open and said piston moves from said top dead center position to said bottom dead center position; a pre-combustion chamber connected communicably to said combustion chamber via a Suder valve, said combustion chamber conveying a portion of said working fluid to said pre-combustion chamber while said Suder valve is substantially open; wherein said Suder valve opens substantially simultaneously with said intake valve, said Suder valve remains substantially open while said piston moves from said top dead center position to said bottom dead center position during an intake stroke, and said Suder valve closes substantially while said piston is returning to said top dead center position during a compression stroke.