Man Truck & Bus Ag

Man Nutzfahrzeuge Ag

Man Truck & Bus Se.

Heribert Möller

Gottfried Raab

Josef Klammer

Werner Vogel

Rainer Kalass

Peter Spaniol

Götz Von Esebeck

Stefan Robausch

Robert Wiemann

Rainer Kalaß

Georg Maget

Götz Freiherr Von Esebeck

Gottfried Raah

Mathias Wacker

Sebastian Mösel

Matthias Wacker

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.

Apparatus and method for combined electrical and mechanical utilization of the energy of an expansion machine

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

Valve control for at least one of an internal combustion engine

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.

Internal combustion engine having at least one combustion chamber

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.

Supercharged internal combustion engine with an expander unit in a heat recovery circuit

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.

Compression ignition internal combustion engine having combustion chambers for high ignition pressures

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.

Arrangement and method for coupling an air compressor to the driving shaft of an internal combustion engine

Growing community of inventors

Sachsen, Germany

Heribert Möller