Abstract: The invention relates to a device for a valve train for changing the lift of gas exchange valves of an internal combustion engine, having a camshaft rotatably mounted in a housing, which camshaft consists of an arrangement of, in succession coaxially from the inside to the outside, at least one push rod, at least one carrier shaft and at least one cam unit provided with at least two different cams and at least one thrust pin, and the cam shaft is surrounded at least partially by at least one shift gate mounted non-rotatably and axially movably in the housing. At least one change-over pin and at least one support pin are immovably connected to the push rod, wherein the change-over pin and the support pin extend in openings at least right through the carrier shaft and the change-over pin can be brought into operative contact with at least one switching contour on the shift gate and the support pin can be brought into operative contact with at least one support contour on the shift gate.

Abstract: A method for recognizing irregular combustion in an internal combustion engine includes supplying fuel directly to a combustion chamber of a cylinder of the internal combustion engine using an injector. The injector is connected to a fuel supply line that includes a pressure sensor configured to measure pressure in the fuel supply line. The pressure in the fuel supply line is measured during the supply of fuel into the combustion chamber. It is then ascertaining whether irregular combustion is occurring based on the measured pressure in the fuel supply line.

Abstract: A method is provided for equalizing the cylinders of a multi-cylinder internal combustion engine. The internal combustion engine is configured as a reciprocating engine having direct injection and spark ignition. A fuel mass is injected in a cylinder-specific manner, and a cylinder-specific air mass and a cylinder-specific ignition time are each adjustable. An injection amount is equalized, then a charge is equalized and then a mean combustion pressure is equalized.

Abstract: A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator.

Abstract: The invention relates to a device for a valve train for changing the lift of gas exchange valves of an internal combustion engine, having a camshaft rotatably mounted in a housing, which camshaft consists of an arrangement of, in succession coaxially from the inside to the outside, at least one push rod, at least one carrier shaft and at least one cam unit provided with at least two different cams and at least one thrust pin, and the cam shaft is surrounded at least partially by at least one shift gate mounted non-rotatably and axially movably in the housing.

Abstract: An adjusting shaft actuating device of a valve train for internal combustion engines includes a cam unit with first and second cams rigidly connected thereto. The second cam is spaced apart from the first cam in axial and peripheral directions. The device also includes a lever unit non-rotatably arranged on an adjusting shaft with first and second lever arms rigidly connected thereto. The second lever arm is spaced apart from the first lever arm in axial and peripheral directions. The first and second cams are configured to be brought into respective operative connections with the first and second lever arms by an axial alignment between the cam unit and lever unit. The first and second cams and the first and second lever arms are arranged such that the first operative connection and the second operative connection are produced during a rotation of the adjusting shaft in a temporally consecutive manner.

Abstract: A valve drive device for switching the stroke of gas exchange valves of an internal combustion engine includes a camshaft configured, at least in part, as a hollow shaft. A cam unit includes at least two different cams disposed on the camshaft so as to be rotationally engaged and axially displaceable with respect thereto. An adjustment sleeve is disposed so as to be rotationally engaged on an adjustment shaft and rotatable and axially displaceable inside the camshaft. The adjustment sleeve includes thereon a closed adjustment contour extending about a circumference of the adjustment sleeve and is operatively connected to the cam unit through an adjustment clearance in the camshaft via a first coupling element configured to permanently engage in the adjustment contour. A further coupling element is configured to permanently engage in the adjustment contour and connect to the camshaft so as to be fixed in position.

Abstract: A device for driving a vehicle includes a housing, an electric motor, a differential gear unit, and a planetary gear unit. The planetary gear unit includes a sun gear connected to the electric motor, a ring gear coupleable via a first coupling to the housing, a plurality of planetary gears disposed between the ring gear and the sun gear and mounted on a planet carrier coupled to the differential gear unit, the planet carrier coupleable to the ring gear by a second coupling, the second coupling being disposed in a plane with the first coupling parallel to the electric motor.

Abstract: A static mixer for an exhaust gas system of an internal combustion engine with which at least two different fluid streams are mixed almost homogeneously after a short mixing distance, and with which back-flow effects and pressure losses are avoided, to the greatest possible extent. Due to the placement of flow guide devices, the inclined front sections of which are disposed alternately facing in different directions, and by the configuration and placement of the fluid passage spaces, which are delimited by guide elements, intensive and homogeneous mixing of two different fluid streams is achieved, while avoiding turbulent flows and pressure losses. Mixing of the fluid streams is supported by guide vanes that are disposed on the flow guide elements in the front region of the central center element, and on a frame that delimits the inclined sections of the flow guide elements.

Abstract: A variable valve train for actuating a plurality of gas exchange valves of an internal combustion engine includes a plurality of individual cam sleeves axially displaceable relative to one another and disposed so as to form the camshaft. Each of the plurality of individual cam sleeves include a plurality of different cam profiles. A switching shaft is disposed inside the plurality of cam sleeves and is configured to rotate together with the plurality of cam sleeves. A switching ball operatively connects one of the plurality of cam sleeves to a switching contour disposed on the switching shaft. A displacement piece is disposed so as to be rotationally engaged but axially displaceable on one of the plurality of cam sleeves and connected to the switching shaft. An actuator is operatively connectable to the displacement piece by the switching ball so as to displace the one of the plurality of cam sleeves.

Abstract: A valve train for actuating a gas exchange valve of an internal combustion engine includes a camshaft configured to be driven by a crankshaft of an engine and including a camshaft tube. At least one cam support including a plurality of cam profiles is disposed on the camshaft so as to be rotationally engaged and axially displaceable with respect to the camshaft. A switching shaft is disposed in the camshaft tube and is configured to rotate together with the camshaft tube. A dog operatively connects the at least one cam support to the switching shaft. A displacement piece is connected to the switching shaft and is configured to be rotationally engaged with and axially displaceable on the camshaft tube. The displacement piece is actuatable so as to rotate the switching shaft relative to the camshaft tube and displace the cam support relative to the camshaft tube using the dog.

Abstract: A valve train device for switching lift of gas exchange valves of an internal combustion engine includes a camshaft including a carrier shaft and a cam assembly disposed non-rotatably and axially displaceably on the carrier shaft via a guide. The cam assembly includes a bearing region, at least one cam group having at least two cams and a first and a second axial contour. A bearing bush is mounted non-rotatably and axially displaceably in a camshaft bearing and radially supports the camshaft in the camshaft bearing. The cam assembly is mounted rotatably and axially displaceably in the bearing bush in the bearing region. The bearing bush includes a first axial reverse opposing contour that corresponds to, and is switchable into operative contact with, the first axial contour and a second axial reverse opposing contour that corresponds to, and is switchable into operative contact with, the second axial contour.

Abstract: A deaeration and cooling system for a fuel tank of an internal combustion engine includes an absorption refrigerator configured to cool fuel in the fuel tank. The absorption refrigerator includes a burner, an evaporator and an exhaust-gas heat exchanger. Thermal energy for operating the absorption refrigerator is obtained from the combustion of evaporated fuel. The evaporated fuel is removed from the fuel tank and supplied to the burner of the absorption refrigerator.

Abstract: A device for varying charge-changing valve lift in an internal combustion engine includes a camshaft and a cam carrier disposed on the camshaft. A plurality of different cam profiles are disposed on the cam carrier. An adjusting shaft is disposed parallel to the camshaft. A first transmission element including a guide path is disposed non-rotatably and axially displaceably on the adjusting shaft. A first engagement element is connected in a stationary manner to a housing of the internal combustion engine and is configured to be guided along the guide path via rotation of the adjusting shaft. A second engagement element is disposed on a second transmission element and is configured to be guided along the guide path via rotation of the adjusting shaft. The second transmission element is connected to the cam carrier so as to axially displace the cam carrier along the camshaft.

Abstract: A variable valve drive for internal combustion engines is used for activation of gas exchange valves, in which the gas exchange valves engage different cam profiles of a camshaft driven by the crankshaft of the internal combustion engine. The camshaft has at least one displaceable cam segment that carries multiple different cam profiles having the same base circle section. Each one of the cam profiles is switched to be active for the related gas exchange valve, in accordance with the axial position of the cam segment relative to at least one related gas exchange valve. The axial positioning of the cam segment takes place by a setting shaft that can be rotated and is disposed parallel and next to the camshaft. The setting shaft has a guide track in which a tappet is guided, which acts on a transfer element that determines the axial position of the cam segment.

Abstract: A valve train includes a a plurality of individual cam sleeves axially displaceable relative to one another and disposed so as to form the camshaft, each of the plurality of individual cam sleeves including a plurality of different cam profiles each having a same base circle portion and being configured to engage, by switching, one of a plurality of gas exchange valves. A switching shaft is disposed inside the plurality of cam sleeves and configured to rotate together with the plurality of cam sleeves. An encircling switching contour is disposed inside each of the plurality of cam sleeves. A switching pin operatively connects one of the plurality of cam sleeves to the switching shaft, the switching pin configured to slide in the encircling switching contour. An actuator is operatively connected to the switching shaft so as to rotate the switching shaft relative to the plurality of cam sleeves.

Abstract: A valve train device for switching a lift of gas exchange valves of an internal combustion engine includes a camshaft. A cam group includes at least two cams disposed on the camshaft. At least one lever is mounted axially displaceably relative to the camshaft and is in contact with one of the at least two cams and includes an actuation region for a direct or indirect actuation of at least one gas exchange valve. An adjustment unit is operatively connected to the lever so as to displace the lever. The unit includes at least one rotatable adjustment shaft, at least one sleeve having at least one guide track mounted on the shaft non-rotationally and axially displaceably, an engagement element fixed to a housing and engaging permanently in the at least one guide track and supporting the at least one sleeve with respect to the housing, and a further engagement element.

Abstract: A system provides reliable tank ventilation, particularly in the case of supercharged internal combustion engines, while also assuring efficient operation of the internal combustion engine. A tank is connected with an adsorption filter by way of a first tank ventilation line. The adsorption filter is connected with the intake line of the internal combustion engine by way of a second tank ventilation line. A drive apparatus includes a turbine wheel and a pump wheel coupled with one another. The pump wheel is disposed in the second tank ventilation line. The turbine wheel is disposed in a bridging line branching off from the intake line and flowing into the intake line. The bridging line branches off from the intake line downstream from a compressor disposed in the intake line.

Abstract: A method for recognizing irregular combustion in an internal combustion engine includes supplying fuel directly to a combustion chamber of a cylinder of the internal combustion engine using an injector. The injector is connected to a fuel supply line that includes a pressure sensor configured to measure pressure in the fuel supply line. The pressure in the fuel supply line is measured during the supply of fuel into the combustion chamber. It is then ascertaining whether irregular combustion is occurring based on the measured pressure in the fuel supply line.

Abstract: Internal combustion engine optimisation in which individual adjustment processes to be carried out to achieve optimal cooperation between the sensors, actuators, control device and internal combustion engine are started and carried out on the basis of the quality achieved for each of the individual adjustment processes in relation to one another, the ambient conditions of the internal combustion engine and the system states of the internal combustion engine in connection with a control program.