Abstract:
An electromagnetic, continuously variable transmission power split turbo compound includes a turbo compound turbine driven by exhaust gases from an internal combustion engine, and a power split device comprising a magnetic gear arrangement. The magnetic gear arrangement includes a high speed rotor comprising a first quantity of permanent magnets, a low speed rotor comprising a second quantity of permanent magnets, and a plural pole rotor between the high speed rotor and the low speed rotor. A first rotor of the high speed rotor, the low speed rotor, and the plural pole rotor includes a mechanical input drive adapted to be driven by the turbine. A second rotor of the high speed rotor, the low speed rotor, and the plural pole rotor includes a mechanical output drive. A third rotor of the high speed rotor, the low speed rotor, and the plural pole rotor is unconnected to a mechanical drive and includes a controlling rotor for controlling a ratio of input drive angular velocity to output drive angular velocity.
Abstract:
The invention relates to a method and an arrangement for reducing an NOx-content in the exhaust gas of an internal combustion engine (10) in a vehicle, the combustion engine (10) comprising at least one cylinder (11), an intake (12) for the supply of air, an exhaust outlet (14) for discharging exhaust gases into an exhaust after treatment system (40) for reducing emissions of the internal combustion engine (10), wherein an exhaust gas recirculation (80) supplies exhaust gas from the exhaust outlet (14) to the intake (14) of the internal combustion engine (10), and at least two energy absorbers (54, 60) in series in the exhaust flow downstream of the exhaust outlet (14) absorb energy of the exhaust gas. The exhaust gas is overheatied to a first temperature by driving the combustion engine (10) in a range of rotational speed producing hot exhaust gas at the exhaust outlet (14), wherein the first temperature is sufficient to drive the at least two energy absorbers (54, 60), wherein a temperature of the exhaust gas is established downstream of the at least two energy absorbers (54, 60) sufficient to remove NOx from the exhaust gas in the exhaust after treatment system (40) with an efficiency of more than 80%.
Abstract:
The invention relates to an air-inlet system (10), and relates to an air-conditioning system (100, 101 ) and an internal combustion engine (200) comprising the air-inlet system. The air-inlet system comprises an air intake port (20), an air output port (30) and a turbine (40) for controlling air mass flow into a combustion chamber (202) of an internal combustion engine. The turbine is provided with a propeller hub (42) which comprises at least one blade (44). The propeller hub is arranged between the air intake port and the air output port for propelling the blade of the turbine. The turbine has an air-flow resistance for determining the air mass flow into the combustion chamber. The effect of the air-inlet system according to the invention is that the use of a turbine enables to use at least some of the pressure drop across the turbine to drive the blade of the turbine for generating rotational energy.
Abstract:
A method of operation of an electric turbocompounding system for a reciprocating engine comprises the steps of retrieving from the engine ECU data pertaining to engine condition, retrieving from a set of turbine efficiency data an optimum turbogenerator speed at the engine condition, setting a desired turbogenerator set speed based on the engine condition and on a speed at which turbine efficiency is deemed to be optimum, measuring an output voltage of the turbogenerator, comparing the measured voltage with a pre-determined voltage range and where the measured voltage falls outside of the pre-determined voltage range, adjusting the turbogenerator set speed to reduce or increase the output voltage to within the pre-determined voltage range.
Abstract:
An auxillary power generation apparatus for powering an ancillary electrical load comprises an apparatus comprising a combustor arranged for disposal in an exhaust conduit of a reciprocating engine, a compressor arranged in fluid communication with an inlet of the combustor for the supply of compressed air to the combustor, a turbogenerator arranged for converting combustion product from the combustor into electrical energy, and a controller for controlling the supply of electrical energy to the ancillary electrical load.
Abstract:
The instant invention presents combustion of hydrogen with oxygen producing environmentally friendly combustion products, wherein management of energy and of combustion is improved. The instant invention presents improved thermodynamics, thereby improving combustion power and efficiency. The instant invention utilizes steam from combustion to: 1) maintain power output of combustion, 2) provide method(s) of energy transfer, 3) provide method(s) of energy recycle, 4) provide power, and 5) cool the combustion chamber. Steam is used as a potential energy source, both from kinetic and available heat energy, as well as conversion to H 2 and O 2 .
Abstract:
The instant invention presents combustion of hydrogen with oxygen producing environmentally friendly combustion products, wherein management of energy and of combustion is improved. The instant invention presents improved thermodynamics, thereby improving combustion power and efficiency. The instant invention utilizes steam from combustion to: 1) maintain power output of combustion, 2) provide method(s) of energy transfer, 3) provide method(s) of energy recycle, 4) provide power, and 5) cool the combustion chamber. Steam is used as a potential energy source, both from kinetic and available heat energy, as well as conversion to H 2 and O 2 .
Abstract:
A system and method is disclosed to increase the efficiency of internal combustion engines where the system and method converts a portion of thermal energy produced in the combustion process to a usable form of energy. If the engines are used in power generation, then the system and method increases the power output of the engine significantly. If the engines are used in traditional mechanical operations such as ships, then the system and method operates to increase mechanical power output or to increase co-produced electrical energy output.
Abstract:
Gemäß der Erfindung wird bei einem Verbrennungsmotor mit einem Verbundtriebwerk (Turbo- Compound) anstelle der bekannten Föttinger-Kupplung ein Torsionschwingungsdämpfer ein gesetzt. Da eine Föttinger-Kupplung zum Übertragen der Leistung eine Differenzdrehzahl zwi schen Eingangs- zur Ausgangsseite benötigt - d.h. es entsteht Schlupf - weist sie hohe Leis tungsverluste auf. Bei der Verwendung eines Torsionsschwingungsdämpfers sind diese Ver luste nicht. Die Torsionsschwingungsdämpfung erfolgt aber mindestens in gleicher Qualität wie bei einer Föttinger-Kupplung.
Abstract:
Bei einem Verfahren zum Betrieb einer Brennkraftmaschine (1) mit einem Abgasturbolader und einer Nutzturbine (12) sowie einer stromab der Nutzturbine (12) angeordneten Abgasnachbehandlungseinheit (18) wird im Fall eines ansteigenden Abgasdrucks eine Druckregulierungsvorrichtung (13, 17) zur Reduzierung des Drucks in Richtung ihrer Öffnungsposition verstellt.