Cylinder head for internal combustion engine and a process of operating same

A cylinder head for an internal combustion engine comprising:

• (a) a block forming at least a portion of a combustion chamber;
• (b) a dual-function chamber in said block and communicating with said combustion chamber;
• (c) intake means for passing either a fuel/air mixture or air through said block to said dual-function chamber;
• (d) exhaust means in said block for passing exhaust gases from said dual-function chamber through said block;
• (e) a partition wall centrally located in a portion of said dual-function chamber, said intake means, and said exhaust means;
• (f) first valve means positioned in said portion of a combustion chamber for controlling the fuel/air mixture or air flowing from said dual-function chamber to said combustion chamber and for controlling the exhaust gases flowing from said combustion chamber to said dual-function chamber, said first valve means having a stem extending through said partition wall;
• and
• (g) second valve means positioned within said dual-function chamber for controlling the flow of the fuel/air mixture or air flowing from said intake means to said dual-function chamber and simultaneously aiding in sweeping out exhaust gases, and for controlling the exhaust gases flowing from said dual-function chamber through said exhaust means, said second valve means designed to have an increased closing force sealing said intake means from said dual-function chamber upon the flow of exhaust gases from the combustion chamber, through said dual-function chamber through said exhaust means.