Reciprocating internal combustion engine with direct fuel injection via an injector arranged on the inlet side

摘要

Reciprocating internal combustion engine with - at least two gas inlet ducts (3) with gas inlet valves (6), - at least one gas outlet duct (4) with gas outlet valve (7), - at least one ignition device (14) per cylinder (1), - through the cylinder cover (2.2) and the cylinder head (11) formed in the cylinder (1) back and forth guided piston (11), in which the gas inlet channels (3) at a shallow angle - measured with respect to the cylinder head plane (2.1) -, wherein the piston head (11.1) on the one hand and the cylinder cover (2.2) on the other hand in a vertical section are substantially roof-shaped and - wherein each one of the roof surfaces the gas inlet valves (6) and the other of the roof surfaces is associated with the gas outlet valve (7) and the roof surfaces of Cylinder cover (2.2) correspond in orientation to the orientation of the roof surfaces of the piston head (11.1), - a fuel injection nozzle (8), the na the inlet region of the gas inlet channels (3) between the gas inlet valves (6) opens into the cylinder (1), wherein, measured with respect to the cylinder axis (5), the angle of the jet axis (9) of the fuel injection nozzle (8) is greater than the angle Gas inlet ducts (3), - an ignition device (14) disposed in the cylinder cover (2.2) near the cylinder axis (5), and - one in the piston head (11.1) arranged by a trough bottom (12.1) and side walls (16) limited trough-shaped recess (12) which intersects the roof ridge (11.2) on the piston head (11.1) and extends over the region of both roof surfaces, - wherein the trough bottom (12.1) is inclined in the direction of the fuel injection nozzle (8) and at its Fuel injection nozzle (8) facing side in a steep wall zone (12.2) upwards and - wherein the transition region (15) between the trough bottom (12.1) and the side walls (16) in the A has an approximately barrel-shaped contour, which extends from the gas outlet channel (4) initially on both sides and then narrows again in the direction of the gas inlet channel (3) and whose one end face is formed by the steeply upwardly directed wall zone (12.2) ,