초록 ▼

The invention relates to a piston internal combustion engine comprising upper camshafts (2, 3) for actuating gas exchange valves, whereby respectively adjacent lying bearings of the induction-side camshaft (2) and the exhaust-side camshaft (3) are provided with a covering element (5) scaling both be

The invention relates to a piston internal combustion engine comprising upper camshafts (2, 3) for actuating gas exchange valves, whereby respectively adjacent lying bearings of the induction-side camshaft (2) and the exhaust-side camshaft (3) are provided with a covering element (5) scaling both bearings. The inventive engine is also provided with direct fuel injection by means of a respective injector device (7) which has a nozzle part and which is associated with a cylinder (I, II, III, IV). The nozzle part is sealingly inserted into an opening in the cylinder head (1) and a cross brace (8) is fixed to the cylinder head (1) in a deflection-resistant manner, overlapping with at least one injector device (7). The cross brace is connected to tightening elements (11) enabling the injector devices (7) to be sealingly tightened in relation to the cross brace (8). The cross brace (8) is connected to least two neighbouring bearing-covering elements (5).

대표청구항 ▼

1. A piston-type internal combustion engine, provided with overhead camshafts (2, 3) for actuating the cylinder valves, wherein respectively side-by-side arranged bearings of the intake-side camshaft (2) and the discharge-side camshaft (3) have a bearing cover element (5) that closes off both bearin

1. A piston-type internal combustion engine, provided with overhead camshafts (2, 3) for actuating the cylinder valves, wherein respectively side-by-side arranged bearings of the intake-side camshaft (2) and the discharge-side camshaft (3) have a bearing cover element (5) that closes off both bearings, further provided with direct fuel injection through a respective injection device (7) assigned to each cylinder (I, II, III, IV) and provided with a nozzle unit, which is inserted so as to be sealed into an opening in the cylinder head (1), further provided with a crossbar (8) that is rigidly fastened to the cylinder head (1) and spans at least one injection device (7), which crossbar is connected to tightening means (11) for a sealed tightening of the injection devices (7) relative to the crossbar (8), and wherein the crossbar (8) is connected to at least two neighboring bearing cover elements (5). 2. A piston-type internal combustion engine according to claim 1, characterized in that a longitudinal support is provided that serves as a crossbar (8) and spans several injection devices (7), which support is fastened to the cylinder head (1) with respectively two fastening screws (6) of the bearing cover elements (5), which are located adjacent to an injection device (7). 3. A piston-type internal combustion engine according to claim 1, characterized in that the crossbar (8) extends crosswise to the orientation of the camshafts (2, 3) and is respectively secured with the fastening screws (6) of the bearing cover elements (5). 4. A piston-type internal combustion engine according to claim 1, characterized in that the crossbar (8) is connected as one piece, material on material, with the bearing cover elements (5). 5. A piston-type internal combustion engine according to claim 1, characterized in that the bearing cover elements (5) are connected as one piece, material on material with at least one additional longitudinal bar (9).