Abstract: An apparatus V and a method, preferably for a motor vehicle, in particular a commercial vehicle. The apparatus V includes an internal combustion engine, an expansion machine and a generator. The expansion machine and the generator can be operatively connected both to one another and in each case to the internal combustion engine via a transmission, in order to make selective electrical utilization and mechanical utilization of the energy of the expansion machine possible.

Abstract: An apparatus V and a method, preferably for a motor vehicle, in particular a commercial vehicle. The apparatus V includes an internal combustion engine, an expansion machine and a generator. The expansion machine and the generator can be operatively connected both to one another and in each case to the internal combustion engine via a transmission, in order to make selective electrical utilization and mechanical utilization of the energy of the expansion machine possible.

Abstract: Valve control for at least one valve of an internal combustion engine, in which the movement of at least one cam (2) of a camshaft (3) can be transmitted to a valve stem (5) of the valve (1) by a transmission mechanism (4), the transmission mechanism (4) including at least one transmission element (7) which is mounted rotatably on an axis (6) and is preferably designed as a rocker arm (10) or drag lever and which is connected to the camshaft (3) via a contact element (8) arranged on the transmission element (7), the contact surface (19) of the contact element (8) and the circumferential surface (20) of the cam (2) having, at least in regions, curved and mutually corresponding contours in the axial direction (21), and the transmission element (7) being mounted axially moveably on an axial body (11) of the axis (6).

Abstract: An apparatus for actuating at least one outlet valve of a valve-controlled internal combustion engine for motor vehicles, includes an actuating element which is driven by a camshaft. A first piston/cylinder unit, preferably a hydraulically loaded piston/cylinder unit, is provided between a cam of the camshaft and at least one outlet valve. The piston/cylinder unit allows at least one outlet valve to be held in a non-closed intermediate position during an engine braking mode with exhaust-gas backpressure. A second piston/cylinder unit is provided which is configured as a valve-play compensation element, preferably as a hydraulic valve-play compensation element (HVC). At least one valve train-side device is provided between the cam and the at least one outlet valve, which valve train-side device exerts a force which is directed counter to the adjusting action of the HVC but is lower than the latter.

Abstract: An internal combustion engine has a combustion chamber, from which exhaust gas can be discharged by way of at least one exhaust valve. An engine braking device includes an hydraulic additional valve control unit is integrated into a connecting mechanism connecting the exhaust valve to a camshaft and holding the exhaust valve in a partially opened position when the engine brake is actuated. The connecting mechanism includes a rocker lever and an intermediate element between the rocker lever and the exhaust valve. The hydraulic additional valve control unit of the engine braking device has a first piston-cylinder unit for the temporary partial opening of one exhaust valve, and an hydraulic valve lash compensating mechanism has a second piston-cylinder unit for counteracting valve lash. The first piston-cylinder unit is arranged in or on the intermediate element. The second piston-cylinder unit is arranged in or on the rocker lever.

Abstract: An apparatus for actuating at least one outlet valve of a valve-controlled internal combustion engine for motor vehicles, includes an actuating element which is driven by a camshaft. A first piston; cylinder unit, preferably a hydraulically loaded piston/cylinder unit, is provided between a cam of the camshaft and at least one outlet valve. The piston/cylinder unit allows at least one outlet valve to be held in a non-closed intermediate position during an engine braking mode with exhaust-gas backpressure. A second piston/cylinder unit is provided which is configured as a valve-play compensation element, preferably as a hydraulic valve-play compensation element (HVC). At least one valve train-side device is provided between the cam and the at least one outlet valve, which valve train-side device exerts a force which is directed counter to the adjusting action of the HVC but is lower than the latter.

Abstract: Valve control for at least one valve of an internal combustion engine, in which the movement of at least one cam (2) of a camshaft (3) can be transmitted to a valve stem (5) of the valve (1) by a transmission mechanism (4), the transmission mechanism (4) including at least one transmission element (7) which is mounted rotatably on an axis (6) and is preferably designed as a rocker arm (10) or drag lever and which is connected to the camshaft (3) via a contact element (8) arranged on the transmission element (7), the contact surface (19) of the contact element (8) and the circumferential surface (20) of the cam (2) having, at least in regions, curved and mutually corresponding contours in the axial direction (21), and the transmission element (7) being mounted axially moveably on an axial body (11) of the axis (6).

Abstract: An internal combustion engine has a combustion chamber, from which exhaust gas can be discharged by way of at least one exhaust valve. An engine braking device includes an hydraulic additional valve control unit is integrated into a connecting mechanism connecting the exhaust valve to a camshaft and holding the exhaust valve in a partially opened position when the engine brake is actuated. The connecting mechanism includes a rocker lever and an intermediate element between the rocker lever and the exhaust valve. The hydraulic additional valve control unit of the engine braking device has a first piston-cylinder unit for the temporary partial opening of one exhaust valve, and an hydraulic valve lash compensating mechanism has a second piston-cylinder unit for counteracting valve lash. The first piston-cylinder unit is arranged in or on the intermediate element. The second piston-cylinder unit is arranged in or on the rocker lever.

Abstract: A supercharged internal combustion engine of a motor vehicle has a cooling circuit, in which a working medium is recycled, which is conveyed at least partially in a vaporous or gaseous physical state. At least one expander unit is provided which is operatively connected with an output shaft of the internal combustion engine via a power train. Via a conversion of energy contained in the at least partially vaporous or gaseous working medium in the expander unit, an output shaft of the expander unit is moveable. The expander unit is embodied as a two-cycle reciprocating engine, which is operatively connected directly or indirectly via the power train with the output shaft of the internal combustion engine.

Abstract: A compression ignition internal combustion engine having at least one combustion chamber for high ignition pressures. Each combustion chamber comprises a cylinder bore in the crankcase or a cylinder liner in the cylinder bore, a piston, and a cylinder head. Spaces for conveying coolant are disposed in the crankcase such that coolant flows about walls of the cylinder bore or a liner. The cylinder head has coolant chambers. The internal combustion engine has a separate cooled plate disposed between the combustion chamber and the cylinder head. The cooled plate forms a surface cover of the combustion chamber and is connected in a positively engaging and gas tight manner with the crankcase and/or the cylinder liner. Valve seats for at least one inlet valve and at least one outlet valve are disposed in the cooled plate, and at least one injection valve extends through the cooled plate.

Abstract: An arrangement and method for coupling an air compressor to the driving shaft of an internal combustion engine that is used as the drive engine of a vehicle, wherein the air compressor supplies a pneumatic device. The arrangement contains a controllable turbocoupling, the pump impeller of which can be driven by the driving shaft of the internal combustion engine and that, by means of a fluid in the form of a working medium, drives the turbine wheel that in turn is operatively connected with the shaft of the air compressor that is to be operated.

Abstract: An auxiliary drive is provided for an internal combustion engine and includes a shaft supported in a housing by means of radial and axial bearings and a gear having the shaft non-rotatably secured thereto. The gear is driveable by a crankshaft of the internal combustion engine via intermediary gearing. The auxiliary drive also includes a power take off flange non-rotatably secured to a free end of the shaft for transferring power to a working engine such as, for example, a cement mixer. The shaft with the radial and axial bearings and the gear are integrated into the crankcase of the internal combustion engine and the gear is located directly between the radial bearings.

Abstract: A check valve is provided and has a housing having inlet and outlet openings and comprising two essentially planar plate portions. A thin steel plate that acts as a valve is disposed between the plate portions. Under the effective pressure, the valve opens in one direction and blocks flow in the opposite direction. The valve has at least one valve tongue, and the plate portions in the valve are fixedly connected together. One of the plate portions is associated with the discharge zone and in the vicinity of the valve tongue is provided with at least one arched portion for limiting opening of the valve tongue. The other plate portion has bores through which the exhaust gas can enter under overpressure.

Abstract: A piston cooling system is provided for an internal combustion engine having a crankshaft, a plurality of pistons connected to the crankcase shaft, and a crankcase housing partitioned by a plurality of partition walls into a plurality of partitioned sections, and a pressurized lubrication fluid circuit integrated with the crankcase housing for the circulation of lubricant therethrough. The piston cooling system includes a plurality of bores each formed in a respective partition wall and communicated with the pressurized lubricant fluid circuit. The piston cooling system also includes a plurality of spray nozzles, each spray nozzle being mounted in a longitudinal bore formed in a respective partition wall. Each spray nozzle is oriented for spraying lubricant onto the underside of a piston. Each spray nozzle is formed by a lathe process.

Abstract: A crankshaft rotational support for an internal combustion engine having a crankshaft supported by rotational support elements spaced from one another along the longitudinal direction of the internal combustion engine is provided. The crankshaft rotational support includes a plurality of bearing blocks and a plurality of bearing covers. Stiffening elements extend longitudinally for interconnecting H-shaped side projections of the bearing covers to one another. The bearing blocks, the bearing covers, and the stiffening elements collectively form a unit which is cast as an integral unit during a casting process with the cast bearing covers and the cast bearing blocks being separable from one another along a break line. The side projections and the stiffening elements each have an open profile that does not comprise any fully encircled apertures in which a casting sand core may remain after casting.

Abstract: A crankcase with integrated exhaust chambers and crank chambers partitioned from one another by partitions is provided and includes a plurality of cylinder liners and a plurality of bores each for receiving therein one of the cylinder liners. The crankcase also includes plenum chambers extending lengthwise on both sides of the crankcase for passage thereinto of the blow by and a plurality of bands each for partitioning off the plenum chambers relative to a respective crank chamber in cooperation with the cylinder liners. Window openings in the partition walls and transition passages associated with a respective one of the plenum chambers effect the connection of the crank chambers with the plenum chambers.