Patent ID: 8776761

Claim:
An internal combustion engine comprising: (a) at least one cylinder unit comprising: (i) a cylinder; (ii) a piston head that reciprocates within the cylinder, a combustion chamber defined between the cylinder and a front of the piston head; (iii) a means for injecting a fuel into the combustion chamber; (iv) a means for injecting an oxidizer into the combustion chamber; and (v) an exhaust port; (b) a piston rod, one end of which is coupled to a rear of the piston head; and (c) a crankshaft coupled to the piston rod whereby a linear reciprocating movement of the piston head is translated into rotation (d) a pair of heat exchangers wherein each of the heat exchangers is designed for elevating a temperature of the oxidizer entering the combustion chamber by utilizing a temperature of the exhaust gases expelled from another combustion chamber; (e) a plurality of high pressure transmission pipes for carrying oxygen and fuel from a respective storage tank to the combustion chamber; and wherein the at least one cylinder unit comprises a pair of cylinder units, wherein the pair of cylinder units are a first cylinder unit and a second cylinder unit, and wherein the second cylinder unit is connected to an other end of the piston rod at the rear of the piston head thereof and wherein the first and second cylinder units are disposed on either side of the crankshaft, and wherein combustion within the combustion chamber is initiated upon the injection of the pressurized fuel and the oxidizer into the combustion chamber when the piston is at the top dead center, the exhaust gases resulted from the combustion are expelled through the exhaust port as the piston returns to the top dead center.