▎ 摘　　要

NOVELTY - Apparatus comprises direct injection diesel engine comprises an engine block, one or more cylinders bored in the block, with a separate piston slidably engaged in each cylinder, cylinder head covering the engine block, an intake port in the cylinder head associated with each of one or more cylinders, exhaust port in the cylinder head associated with each of one or more cylinders, an intake valve associated with each of intake port, an exhaust valve associated with each of exhaust port, one or more camshafts coupled to the intake and exhaust valves, and a crankshaft coupled to the piston. The first servo motor is attached to the crankshaft, one or more additional servo motors, where each one or more additional servo motors is attached to a corresponding to one or more camshafts, gas delivery unit for delivering a mixture of acetylene and oxygen to the engine, coupled to the engine upstream of the intake port, collection unit for collecting graphene. USE - Apparatus used for making graphene. ADVANTAGE - The apparatus has high mechanical strength, high intrinsic carrier mobility at room temperature, high thermal conductivity, and unique optical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM i included for a method for making graphene in a modified diesel engine, which involves: (A) feeding a mixture of acetylene and oxygen into a modified direct injection diesel engine, where the diesel engine comprises an engine block, one or more cylinders bored in the block, with a separate piston slidably engaged in each of one or more cylinders, a cylinder head covering the engine block, an intake port in the cylinder head associated with each of one or more cylinders, an exhaust port in the cylinder head associated with each of one or more cylinders, an intake valve associated with each of intake ports, an exhaust valve associated with each of exhaust ports, one or more camshafts coupled to the intake and exhaust valves, and a crankshaft coupled to the piston, and where the diesel engine has been modified by removing its fuel injectors and replacing each fuel injector with a spark plug; (B) detonating the mixture of acetylene and oxygen by energizing the spark plug, forming graphene; and (C) collecting the graphene by venting exhaust from the detonation into a graphene collection system. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of apparatus. Engine (10) Pistons (11) Bowl (12) Inner surface (13) Cylinder (15)