MAN Nutzfahrzeuge Oesterreich AG Patent applications |
Patent application number | Title | Published |
20120119535 | FASTENING ASSEMBLY FOR MOUNTING COMPONENTS AND OFF-ROAD UTILITY VEHICLE HAVING A FASTENING ASSEMBLY - A fastening assembly fastens at least one component part to a vehicle frame. The vehicle frame includes a first, preferably closed cross-sectional profile. At least one carrier for a fastening device includes a second cross-sectional profile. The carrier extends from a first internal surface of the vehicle frame to at least a second internal surface of the vehicle frame and provides an opening for carrying the fastening device. An off-road utility vehicle having at least one fastening assembly is also provided. | 05-17-2012 |
20120017868 | METHOD AND DEVICE FOR ENGINE BRAKING - A method for engine braking of a multi-cylinder internal combustion engine of a vehicle, which is preferably an engine operating on the diesel principle. The engine has at least one exhaust-gas turbocharger with an exhaust-gas turbine and a charge air compressor, and an exhaust manifold which supplies the exhaust-gas flow from outlet valves of the engine to the exhaust-gas turbocharger. A throttle device is connected between the outlet valves and the turbocharger for throttling the exhaust-gas flow and causing a pressure increase in the exhaust gas for engine braking upstream. An exhaust-gas counter-pressure and a charge air pressure are measured and, based on the measurement, a position of the throttle device can be determined to obtain a predetermined braking action. Then the exhaust-gas counter-pressure and the charge air pressure are closed-loop controlled by adjusting the throttle device corresponding to the previously determined position of the throttle device. A device for engine braking, preferably a diesel engine, has a system for carrying out the novel method. | 01-26-2012 |
20100139626 | Drive Unit with Cooling Circuit and Separate Heat Recovery Circuit - A cooling circuit and an independent heat recovery circuit are associated with an internal combustion engine. A coolant is circulated a pump in a first and a second cooling sub-circuit. An increase in pressure in a work medium is achieved within the heat recovery circuit by a pump. This work medium is changed from liquid aggregate state to vaporous aggregate state and back to the liquid aggregate state in heat exchangers. This work medium is divided after the pump into two parallel partial flows and is changed into vaporous state in a first parallel branch in an EGR heat exchanger through which recycle exhaust gas flows and in a second parallel branch in an exhaust gas heat exchanger through flow exhaust gas downstream of the low-pressure turbine flows. This vaporous work medium is then fed to an expander and is then conducted through a cooled condenser and, liquefied again. | 06-10-2010 |
20100083659 | Reciprocating Expansion Engine and Piston of a Reciprocating Expansion Engine - A piston and a reciprocating expansion engine with a piston having a piston head, a piston neck, and a piston shaft are described. The piston head has at least one groove which runs in a circumferential direction suitable for receiving a piston ring, and the piston shaft has a pin boss and, at its outer circumference, a guide surface which is suitable for guiding the piston along a cylinder inner wall. An outer diameter of the piston neck is smaller than an outer diameter of the piston head and/or of the piston shaft, and the length of the piston neck approximately corresponds to the travel of the piston in the installed state. | 04-08-2010 |
20090255243 | Commercial Vehicle With An Internal Combustion Engine And A Heat Recovery System Using The Heat Sources Of That Engine - In a commercial vehicle with an internal combustion engine, a muffler in the exhaust gas system, and a heat recovery system, including a medium-containing circuit having at least one pump, an evaporator, an expander, and a condenser, the evaporator present in the medium-containing circuit of the heat recovery system is placed so that the evaporator is integrated into the muffler, where it either is installed in the tailpipe or partially replaces it, or is attached externally to the muffler, and an end section of the tailpipe, or is integrated into the tailpipe, which extends from the muffler and proceeds vertically upward behind the driver's cab, the evaporator being either installed in the tailpipe or partially replacing it, or is integrated into a muffler, which is installed in an exhaust pipe proceeding vertically upward behind the driver's cab. | 10-15-2009 |
20090193790 | Method For The Regeneration Of A Particle Filter Installed In The Exhaust Gas Train Of A Vehicular Diesel Engine - A method for regenerating a soot-laden particle filter in the exhaust gas train of a diesel engine in a vehicle, wherein the engine is equipped with a fuel injection system having an injection valve for each cylinder and an exhaust braking device including a butterfly valve in the exhaust gas train upstream of the particle filter. An exhaust braking phase is initiated by closing the butterfly valve, thereby causing hot exhaust gas to be compressed upstream of the butterfly valve. Regeneration of the particle filter is then initiated by injecting diesel fuel into the cylinders substantially after the respective pistons pass top dead center, and allowing the hot exhaust gas mixture containing unburned fuel and air to flow past the butterfly valve so that the mixture ignites the soot and then supports combustion of the soot, thereby regenerating the particle filter. | 08-06-2009 |