Patent ID: 6065441
Filing Date: 2000-05-23
Classification: F02B,Y02T

Abstract:
In an internal combustion engine having a cylinder and piston located in said cylinder for reciprocal movement, a cylinder head fixed over said cylinder and piston to form a combustion chamber, an air admission means formed in said cylinder head including an intake valve for regulating air flow into said cylinder, an exhaust discharge means formed in said cylinder head including an exhaust valve for regulating exhaust gas flow from said cylinder, a pre-combustion chamber located in said cylinder head along one side of said cylinder, said pre-combustion chamber being formed with a pair of transfer passages communicating with said combustion chamber with one end of each of said transfer passages being in proximity to said pre-combustion chamber and the other end of said pair of transfer passages being in proximity to said combustion chamber, wherein said transfer passages are oriented so that combustion gases therefrom are guided from the pre-combustion chamber along two substantially independent paths to either side of said piston's central portion thereby reducing the localized temperature over the center of said piston.