Patent ID: 7143725

Claim:
A dual six-stroke self-cooling internal combustion engine having a basic unit and a working cycle comprising: a) at least a primary power cylinder and ignition means; b) at least a secondary power cylinder and ignition means; c) at least one cooling cylinder and a piston; d) means for introducing and firing a fuel-air mixture for said primary power cylinder and said secondary power cylinder respectively; e) means for intaking air into said cooling cylinder; f) means for coordinating and transferring air from said cooling cylinder to said primary power cylinder; g) means for coordinating and transferring air from said cooling cylinder to said secondary power cylinder; h) a primary power cylinder exhausting port and a secondary power cylinder exhausting port; i) a turbo connecting with said primary power cylinder exhaust port and said secondary power exhaust port for providing high volume of air intake into said cooling cylinder; j) first stroke intaking air-fuel mixture into said primary power cylinder from 0 degree to 180 degree of crankshaft angle; k) second stroke intaking air only into said cooling cylinder from 90 degree to 270 degree of crankshaft angle; l) third stroke compressing air-fuel mixture inside said primary power cylinder from 180 degree to 360 degree of crankshaft angle; m) fourth stroke compressing air inside said cooling cylinder from 270 degree to 450 degree of crankshaft angle; n) fifth stroke igniting said primary power cylinder at designed angle and producing the first power stroke from 360 degree to 540 degree of crankshaft angle, wherein the compressed air inside said cooling cylinder is pushed into said primary power cylinder from approximately 420 degree to 450 degree of crankshaft angle; o) sixth stroke intaking air-fuel mixture into said secondary power cylinder from 360 degree to 540 degree of crankshaft angle; p) seventh stroke intaking air only into said cooling cylinder from 450 degree to 630 degree of crankshaft angle; q) eighth stroke exhausting the working medium out of said primary power cylinder from 540 degree to 720 degree of crankshaft angle; r) ninth stroke compressing air-fuel mixture inside said secondary power cylinder from 540 degree to 720 degree of crankshaft angle; s) tenth stroke compressing air inside said cooling cylinder from 630 degree 810 degree of crankshaft angle; t) eleventh stroke igniting said secondary power cylinder at designed angle and producing the second power stroke from 630 degree to 810 degree of crankshaft angle, wherein the compressed air inside said cooling cylinder is pushed into said secondary power cylinder from approximately 780 degree to 810 degree of crankshaft angle; u) twelfth stroke exhausting working medium out of secondary power cylinder from 900 degree to 1080 degree of crankshaft angle; each cylinder completes one of its own working cycle in 720 degree rotation of crankshaft angle.