Patent ID: 7954478
Filing Date: 2011-06-07
Classification: F02B,F02M,Y02T

Abstract:
1. A method for operating an internal-combustion engine, said method comprising the steps of (a) providing an internal-combustion engine that uses recycled combustion gas instead of air, said engine including: (b) providing a gas-cooling means for receiving, cooling and discharge of said engine combustion gas, (c) providing a gas-intake means for selectively connecting said cylinder chamber to said gas-cooling means and for receiving cooled combustion gas from said gas-cooling means into said cylinder chamber in timed relation to said engine operation, (d) providing a gas-exhaust means for selectively connecting said cylinder chamber to said gas-cooling means and for discharging hot combustion gas from said cylinder chamber into said gas-cooling means in timed relation to said engine operation, (e) providing an oxygen-delivery means for adding oxygen to said combustion gas, (f) providing a fuel-delivery means for adding fuel to said combustion gas, (g) providing a pressure-control means for controlling the pressure of said recycled combustion gas and for discharging excess combustion gas through an exhaust pipe into outside atmosphere, (h) providing a control means for controlling the operation of said internal-combustion engine in response to operator's demands and in accordance with a control program incorporated in said control means, (i) operating said engine in a gas-recycling mode by repeatedly performing an engine cycle that includes the steps of: (j) using said control means for control of operation of said internal-combustion engine, whereby said engine operates without receiving air from outside atmosphere, whereby said combustible mixture contains no nitrogen, whereby no nitrogen oxides are produced in said engine, and whereby harmful exhaust emissions are recycled back into said engine and burned there.