Peter Fledersbacher

Bio: Peter Fledersbacher is an academic researcher from Daimler AG. The author has contributed to research in topics: Gas compressor & Internal combustion engine. The author has an hindex of 16, co-authored 110 publications receiving 1429 citations. Previous affiliations of Peter Fledersbacher include Mann+Hummel.

Exhaust-gas turbocharger for an internal combustion engine

Abstract: An exhaust gas turbocharger for an internal combustion engine has an exhaust gas turbine in the exhaust gas train and a compressor in the intake tract, whereby an adjustable throttle device is provided upstream from the compressor wheel, for regulating the air mass stream to be supplied. The throttle device comprises a first guide grid and a second guide grid in the inflow region to the compressor wheel. Each guide grid possesses an adjustable grid geometry.

Abgasturbolader für eine brennkraftmaschine

Abstract: Ein Abgasturbolader fur eine Brennkraftmaschine weist eine Turbine und einen von der Turbine angetriebenen Verdichter auf. Der Verdichter besteht aus einem Verdichterrad in einem Stromungskanal, wobei mindestens ein radial ausen am Verdichterrad in Achsrichtung des Rades verlaufender und mit dem Stromungskanal kommunizierender Uberstromkanal angeordnet ist. Zur variablen Einstellung des wirksamen Stromungsquerschnitts des Uberstromkanals ist ein aus zwei Teilringen bestehender Uberstromring vorgesehen, dessen Teilringe relativ zueinander verstellbar sind. DOLLAR A Um einen Abgasturbolader mit einem Verdichter mit einem erweiterten Kennfeld zu schaffen, ist in jedem Teilring mindestens eine den Uberstromkanal bildende, axial verlaufende Uberstromnut mit radialer Erstreckung im Teilring vorgesehen, wobei die Teilringe zwischen einer Uberdeckungsstellung und einer Sperrstellung verstellbar sind.

Exhaust gas turbocharger in an internal combustion engine

Abstract: In an exhaust-gas turbocharger of an internal combustion engine including an exhaust-gas turbine coupled to a compressor by a shaft and having a relatively large and a relatively small turbine inlet flow passage, the relatively large turbine inlet flow passage is arranged adjacent to the shaft and the relatively small turbine inlet flow passage facing away from the shaft and a switching device is provided via which the exhaust gas of the cylinders can be selectively supplied either to the small or to the large or to both of turbine inlet flow passages and furthermore, an exhaust gas recirculation line connected to the exhaust gas line leading to the small turbine inlet flow passage is in communication with the engine intake tract.

Exhaust-gas turbocharger for an internal combustion engine, and method for operating a turbocharged internal combustion engine

Abstract: An exhaust-gas turbocharger for an internal combustion engine includes an exhaust-gas turbine in the exhaust section and a compressor in the intake tract. The compressor includes a compressor impeller in an inflow passage in the compressor housing. Furthermore, there is an auxiliary-air feed device, which is assigned to the compressor region and has an auxiliary-air passage, in the compressor housing for supplying auxiliary air, which can be introduced via an injection opening in the wall of the inflow passage of the compressor into the flow-facing region of the compressor impeller.

Exhaust gas turbocharger for an internal combustion engine and a corresponding method

Abstract: An exhaust gas turbocharger for an internal combustion engine includes an exhaust gas turbine in the exhaust gas system and a compressor in the intake system for producing compressed charge air. A compressor rotor is arranged in a compressor inlet channel. In order to achieve a greater range of utilization, an adjustable shutoff element is arranged in the compressor inlet channel, upstream from the compressor rotor, for variable adjustment of the effective cross-section.

Exhaust-gas turbocharger for an internal combustion engine

Abstract: An exhaust gas turbocharger for an internal combustion engine has an exhaust gas turbine in the exhaust gas train and a compressor in the intake tract, whereby an adjustable throttle device is provided upstream from the compressor wheel, for regulating the air mass stream to be supplied. The throttle device comprises a first guide grid and a second guide grid in the inflow region to the compressor wheel. Each guide grid possesses an adjustable grid geometry.

Variable geometry turbine

Abstract: A turbocharger variable geometry turbine of the type which includes nozzle vanes displaceable across the turbine inlet flow path into slots. The vanes have cut-outs which reduce the vane cord and permit peak turbine efficiency over a range of geometries.

Abgasturbolader für eine brennkraftmaschine

Abstract: Ein Abgasturbolader fur eine Brennkraftmaschine weist eine Turbine und einen von der Turbine angetriebenen Verdichter auf. Der Verdichter besteht aus einem Verdichterrad in einem Stromungskanal, wobei mindestens ein radial ausen am Verdichterrad in Achsrichtung des Rades verlaufender und mit dem Stromungskanal kommunizierender Uberstromkanal angeordnet ist. Zur variablen Einstellung des wirksamen Stromungsquerschnitts des Uberstromkanals ist ein aus zwei Teilringen bestehender Uberstromring vorgesehen, dessen Teilringe relativ zueinander verstellbar sind. DOLLAR A Um einen Abgasturbolader mit einem Verdichter mit einem erweiterten Kennfeld zu schaffen, ist in jedem Teilring mindestens eine den Uberstromkanal bildende, axial verlaufende Uberstromnut mit radialer Erstreckung im Teilring vorgesehen, wobei die Teilringe zwischen einer Uberdeckungsstellung und einer Sperrstellung verstellbar sind.

Low emission power generation and hydrocarbon recovery systems and methods

Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes integrated pressure maintenance and miscible flood systems with low emission power generation. An alternative system provides for low emission power generation, carbon sequestration, enhanced oil recovery (EOR), or carbon dioxide sales using a hot gas expander and external combustor. Another alternative system provides for low emission power generation using a gas power turbine to compress air in the inlet compressor and generate power using hot carbon dioxide laden gas in the expander. Other efficiencies may be gained by incorporating heat cross-exchange, a desalination plant, co-generation, and other features.

Internal combustion engine with an exhaust turbocharger and an exhaust-gas recirculation device

Abstract: In an internal combustion engine including an exhaust turbocharger and an exhaust-gas recirculation device, with an exhaust turbine and a compressor, the exhaust turbine has a plurality of inlet flow passages to which exhaust gas can be supplied via separate exhaust lines connected to some of the cylinders of the internal combustion engine In total, three flow passages are provided in the exhaust turbine, of which two communicate with the exhaust-gas recirculation device, and one of these flow passages includes an adjustable throttling member for regulating the mass flow of exhaust gas to be recirculated