Abstract:
Aufgeladene Brennkraftmaschine mit einem Abgassammler (12) und einem Ladeluftsammler (13) jeweils für sämtliche Brennräume, mehreren in Abhängigkeit von der Leistung der Brennkraftmaschine gestaffelt mit ihrer Abgasturbine (17) an den Abgassammler (12) über je ein Abgasventil (18) anschaltbaren und abschaltbaren Abgasturboladern (14, 15, 16), einem von einem gesonderten Motor (31) angetriebenen Hilfskompressor (32), Ventileinrichtungen zum Umsteuern der Überbrückungsluft des Hilfskompressors (32) und der Verdichterluft des im Staffelbetrieb hinzutretenden jeweiligen Abgasturboladers (14, 15, 16) wobei jede Ventileinrichtung ein zwischen dem Ladeluftausgang des Verdichters (28) des Abgasturboladers (14, 15, 16) und dem Ladeluftsammler (13) eingefügtes Hauptluftventil (26) und ein zwischen dem Ladeluftausgang des Verdichters (28) und dem Hauptluftventil (26) angeschlossenes und zum Lufteingang des Hilfskompressors (32) führendes Hilfsluftventil (27) aufweist und der Hilfskompressor (32) ausgangsseitig an den Ladeluftsammler (13) angeschlossen ist.
Abstract:
An object is to provide a turbo compound system that has high energy-saving efficiency and improved output or efficiency. In a turbo compound system including a plurality of exhaust turbochargers (3, 4), a power turbine (5), a steam turbine (10) driven by steam generated by an exhaust-gas economizer (11), a turbo-generator (25) connected to rotation shafts of the power turbine (5) and the steam turbine (10), and a control unit that controls an operation of the exhaust turbochargers (3, 4), the power turbine (5), and the steam turbine (10), one of the exhaust turbochargers (3) is stopped when an engine load on the engine body (2) is less than or equal to a predetermined value, and an amount of exhaust gas extracted from the engine body (2) is reduced to reduce an output of the power turbine (5).
Abstract:
A turbocharger system for an engine comprises at least a small and a large compressor arranged in series, at least a small and a large turbine arranged in parallel and a shut-off arrangement adapted to interrupt exhaust gas flow through at least one of the small and the large turbine. Further, a method for controlling a turbocharger system for an engine having a large turbocharger with a large turbine and a small turbocharger with a small turbine comprises the steps switching off an exhaust gas flow through the large turbine and switching on an exhaust gas flow through the small turbine in a low engine speed range, switching on the exhaust gas flow through the large and small turbine in a medium engine speed range, and switching on the exhaust gas flow through the large turbine and switching off the exhaust gas flow through the small turbine in a high engine speed range.
Abstract:
A turbo charger system comprising first and second turbo chargers in series hand over control from one turbo charger to the other incorporating switching adjustment terms at the point of transition to ensure a smooth transition.
Abstract:
A multi-turbocharger boosting system for an internal combustion engine (603) comprises a first turbocharger (601) having a first exhaust gas driven turbine (605) and a first compressor (609) and a second turbocharger (602) having a second exhaust gas driven turbine (607) and a second compressor (611). A first valve (633) controls a mass flow of exhaust gas flowing towards each of the turbines (605, 607) and a second valve (639) controls a mass flow of compressed air flowing from each of the compressors (609, 611).
Abstract:
An internal combustion engine (10) includes a turbocharger (36, 62) having a turbine (38, 64), a first set of combustion cylinders (16), and a second set of combustion cylinders (22). A first particulate trap (48) is in fluid communication between the first set of combustion cylinders (16) and the turbine (38, 64). A second particulate trap (50) is in fluid communication between the second set of combustion cylinders (22) and the turbine (38, 64).
Abstract:
An internal combustion engine comprising a plurality of cylinders (2), each cylinder comprising at least one first and one second exhaust port (3,5) with associated first and second exhaust valves (7,9) for opening and closing said exhaust ports (3,5); at least one first and one second exhaust manifold (21,23), the first exhaust manifold (21) being flow-connected to the respective first exhaust ports (3) and the second exhaust manifold (23) being flow-connected to the respective second exhaust ports (5); a turbo unit (11) for supercharging the charge air delivered to the cylinders (2), comprising at least one first and one second exhaust gas turbine (13,15), the first exhaust gas turbine (13) being flow connected to the first exhaust manifold (21) and the second exhaust gas turbine (15) being flow-connected to the second exhaust manifold (23); an exhaust gas chamber (25) designed to flow-connect the first and the second exhaust manifold (21,23) upstream of the exhaust gas turbines (13,15).