Piston skirt oil seal

A piston connected to a connecting rod extending through and actuating in a cylinder chamber of an internal combustion engine between an oil sump and a combustion chamber comprising:

• a piston skirt;
• a first retainer connected to a lower portion of said piston skirt;
• a second retainer connected to a lower portion of said cylinder chamber;
• a boot with a top rim and a bottom rim, wherein said connecting rod threads said boot and said top rim of said boot attaches to said first retainer and said bottom rim of said boot attaches to said second retainer separating the oil sump from the combustion chamber and defining an oil-free zone within said cylinder chamber.

A piston system for use in an internal combustion engine comprising:

• a piston with a piston crown, with said piston connected to a connecting rod extending through and reciprocating in a cylinder chamber between an oil sump and a combustion chamber;
• a piston skirt extending downward from said piston crown;
• an impervious boot with a top edge and a bottom edge;
• said top edge of said boot connects to said piston skirt and said bottom edge of said boot connects to a wall of said cylinder chamber to separate said oil sump from said combustion chamber, defining an oil-free zone within said cylinder chamber and prevent oil migration from said oil sump into said combustion chamber;
• said connecting rod threads said boot;
• at least one self-lubricating or gas lubricated ring attached to said piston;
• and
• at least one port provided in said cylinder chamber to remove gases from said cylinder chamber.