Abstract: An internal combustion engine having at least one cylinder with a reciprocating piston, and in which the cylinder head and the cylinder block are integrally arranged as a head-block unit, having at least one exhaust-gas turbocharger.

Abstract: A length-adjustable connecting rod for a reciprocating-piston engine. At least one first rod part and second rod part are telescopically displaceable relative to and/or into one another. The second rod part forms a guide cylinder and the first rod part forms a piston element which is longitudinally displaceable in the guide cylinder. Between the first and second rod parts is a high-pressure chamber into which at least one first oil duct opens. At least one control valve is arranged in the first oil duct, with an actuator thereof to be displaced into a first position by a spring and into a second position by oil pressure against the force of the spring. To permit adjustment of the compression ratio, a second oil duct formed as a feed duct opens into the high-pressure chamber and in which a check valve is arranged which opens in the direction of the high-pressure chamber.

Abstract: An internal combustion engine (1), includes a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with the crankcase (10) including at least one oil pump. In order to reduce the production effort the oil pump is arranged in the crankcase (10), with the oil pump (40) being connected with a flange (43), and with the flange (43) being fixed to a mounting wall (42) of the crankcase (10).

Abstract: An internal combustion engine (1), including a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with at least one mass balancing shaft (20) being held in the crankcase (10). In order to reduce the production effort it is provided that—when seen in the direction of the axis (19a) of the crankshaft (19)—a first pin (26) which is arranged in a borehole (6) and arranged as an alignment pin is positioned in the region of the face side (5) of the crankcase (10) on a straight connecting line (27) between the axis (20a) of the mass balancing shaft (20) and the axis (19a) of the crankshaft (19), with preferably the first pin (26) being arranged in the crankcase (10) and the borehole (6) in the flanged bush (24).

Abstract: An internal combustion engine (1), including a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with at least one mass balancing shaft (20) being held in the crankcase (10). In order to reduce the production effort it is provided that—when seen in the direction of the axis (19a) of the crankshaft (19)—a first pin (26) which is arranged in a borehole (6) and arranged as an alignment pin is positioned in the region of the face side (5) of the crankcase (10) on a straight connecting line (27) between the axis (20a) of the mass balancing shaft (20) and the axis (19a) of the crankshaft (19), with preferably the first pin (26) being arranged in the crankcase (10) and the borehole (6) in the flanged bush (24).

Abstract: An internal combustion engine (1), includes a cylinder head (2) and a cylinder block (3), with a crankcase (10) being fixed to the cylinder block (3), and with the crankcase (10) including at least one oil pump. In order to reduce the production effort the oil pump is arranged in the crankcase (10), with the oil pump (40) being connected with a flange (43), and with the flange (43) being fixed to a mounting wall (42) of the crankcase (10).

Abstract: An internal combustion engine has at least one cylinder and at least one gas exchange valve (1; 1a, 1b) controlled by a first cam (14) on a first camshaft (16) and by a second cam (15) on a second camshaft (17), at least one camshaft (16, 17) having an adjustable phase position in order to modify the control times of the gas exchange valve (1; 1a, 1b). The first cam (14) acts upon actuating means (6, 10) and the second cam (15) upon actuating means (6, 10) which actuate the gas exchange valve (6, 10). The actuating means (6, 10) are designed in such a way that the gas exchange valve (1) opens only when both the first cam (14) and the second cam (15) are acting upon the actuating means (6, 10). A simple structure with very high degrees of freedom for the control is achieved in that the actuating means (6, 10) comprise a lever which actuates the gas exchange valve (1; 1a, 1b) and is actuated by both cams (14, 15).

Abstract: An internal combustion engine has at least one cylinder and at least one gas exchange valve (1; 1a, 1b) controlled by a first cam (14) on a first camshaft (16) and by a second cam (15) on a second camshaft (17), at least one camshaft (16, 17) having an adjustable phase position in order to modify the control times of the gas exchange valve (1; 1a, 1b). The first cam (14) acts upon actuating means (6, 10) and the second cam (15) upon actuating means (6, 10) which actuate the gas exchange valve (6, 10). The actuating means (6, 10) are designed in such a way that the gas exchange valve (1) opens only when both the first cam (14) and the second cam (15) are acting upon the actuating means (6, 10). A simple structure with very high degrees of freedom for the control is achieved in that the actuating means (6, 10) comprise a lever which actuates the gas exchange valve (1; 1a, 1b) and is actuated by both cams (14, 15).

Abstract: A cylinder liner for a liquid-cooled internal combustion engine, includes a cylinder liner collar which is adjacent to a cylinder head sealing plane and into which is formed at least one circular cooling duct.

Abstract: An electric braking device for measuring the torque of an engine includes a rotor rotating with a shaft and a stator which is tiltably supported in a housing by a bearing at either of its front ends, each end being provided with a disk-shaped bearing shield with a pivot journal. To prevent the measured results from being influenced by the stator bearings hydrostatic swivel bearings are used, one being axially movable and the other axially immovable. Each hydraulic swivel bearing includes a ring slipped over a pivot journal of the bearing shield the ring being supported by two bearing bodies secured against rotating, the latter being located one on either side of a longitudinal center plane containing the shaft axis and below a transverse plane containing the shaft axis and being normal to the center plane.

Abstract: In a casting core for the water jacket of a cylinder block in a multicylinder, reciprocating-piston internal combustion engine, whose cylinders are arranged in line and are cast in one piece linked by cylinder webs, these webs are provided with rectangular plates of a ceramics material--preferably sintered oxide ceramics--, which are used as supports for two core halves, in which they are anchored in such a way as to present a one-piece casting core. The supports are removed during the core cleaning process, leaving passages for the cooling water.

Abstract: An intake system for internal combustion engines, comprising suction pipes of different lengths, which can be connected individually--preferably in accordance with the engine speed--to the intake passage in the cylinder head leading to the intake valve. The main intake pipe is connected to each intake passage by means of a connecting piece, and three suction passages of different lengths departing from the main intake pipe open into this connecting piece either in the direction of its axis or on opposite sides thereof, the connecting piece containing a butterfly control valve which is centrally mounted on a shaft parallel to the longitudinal axis of the engine, and which--in its two extreme positions and in its center position--establishes the flow connection between one of the suction passages and the intake passage.

Abstract: An injection-type internal combustion engine with cylinders arranged in line, with two overhead camshafts, and four valves and a central pump nozzle for each cylinder, and with detachable rocker arms being provided on the cylinder head above the respective camshaft, for actuating the pump nozzles. With this arrangement, the cams for the rocker arms actuating the pump nozzles are operated from the two camshafts in turn, i.e., the first camshaft actuates the pump of one cylinder and the second camshaft actuates that of the adjacent cylinder, each rocker arm being mounted separately. This will facilitate assembly and disassembly of the pump nozzle including the corresponding actuating mechanism and valve gear.

Abstract: An engine brake in an internal combustion engine for use in motor vehicles, comprising an exhaust valve controlled by a cam via a follower lever, and a device for leaving the exhaust valve slightly open during the combustion stroke. According to the invention the support bearing of the follower lever is designed to be adjustable in the direction of the supporting force P between two extreme positions, i.e. one corresponding to normal operation and the other one to braking, such that on braking the exhaust valve is lifted by 0.3 to 3 mm, preferably 0.5 to 2 mm, during the phase in which the base circle of the cam is in contact with the follower lever.

Abstract: In an internal combustion engine with cylinders inline and an overhead camshaft for actuation of the intake and exhaust valves, the camshaft is driven from the crankshaft by means of a driving gear and an intermediate shaft, the driving gear being rigidly connected to an outer cheek of the crankshaft. With this arrangement the distance between the crankshaft bearings remains unchanged and a minimum overall length of the engine is achieved. At the same time a speed reduction gear may be located anywhere between the crankshaft and the camshaft.

Abstract: Two or more valves which are positioned opposite one another relative to a center plane in which the cylinder axis and the crankshaft axis are located and which are arranged in the cylinder head in a parallel, upright position, are actuated via separate cams and levers by a camshaft which is spaced from the center plane and extends in parallel with the crankshaft. The lever actuating the valve on the same side of the center plane as the camshaft is configured as a one-armed lever which is positioned underneath the camshaft and is supported by a bearing on the cylinder head. The lever actuating the valve on the other side of the center plane is configured as a rocker lever, its axle being situated above the one-armed lever, parallel to the camshaft.

Abstract: An internal combustion engine whose engine unit support, comprising such sound-generating parts as cylinders, cylinder head, piston rods, crankshaft bearings, crankshaft, is provided with a bracket of at least two arms at least at its output end. This bracket is attached to the bearing seats of the crankshaft and is provided with at least one sound-insulating element at each end of its arms for connecting said engine unit support to the crankcase. This will reduce any relative movements between the crankshaft and the crankcase in a simple manner.