초록 ▼

A premix burner arrangement with catalytic combustion provides a fuel/air mixture to a combustion chamber of a gas turbine arrangement. The premix burner arrangement includes a premix burner, at least one fuel addition unit, and air inlet openings arranged in such a way that at least one of gaseous

A premix burner arrangement with catalytic combustion provides a fuel/air mixture to a combustion chamber of a gas turbine arrangement. The premix burner arrangement includes a premix burner, at least one fuel addition unit, and air inlet openings arranged in such a way that at least one of gaseous and liquid fuel can be mixed with combustion inlet air inside the premix burner to form a fuel/air mixture. The fuel/air mixture exits from the premix burner downstream in the direction towards a combustion chamber positioned after the premix burner arrangement and can be ignited inside the combustion chamber. A catalyzer unit is provided before the entrance of the fuel/air mixture into the combustion chamber. Part of the fuel/air mixture can be introduced into and passed through the catalyzer unit before the catalyzed part of the fuel/air mixture flows together with the remaining portion of the fuel/air mixture into the combustion chamber.

대표청구항 ▼

A premix burner arrangement with catalytic combustion provides a fuel/air mixture to a combustion chamber of a gas turbine arrangement. The premix burner arrangement includes a premix burner, at least one fuel addition unit, and air inlet openings arranged in such a way that at least one of gaseous

A premix burner arrangement with catalytic combustion provides a fuel/air mixture to a combustion chamber of a gas turbine arrangement. The premix burner arrangement includes a premix burner, at least one fuel addition unit, and air inlet openings arranged in such a way that at least one of gaseous and liquid fuel can be mixed with combustion inlet air inside the premix burner to form a fuel/air mixture. The fuel/air mixture exits from the premix burner downstream in the direction towards a combustion chamber positioned after the premix burner arrangement and can be ignited inside the combustion chamber. A catalyzer unit is provided before the entrance of the fuel/air mixture into the combustion chamber. Part of the fuel/air mixture can be introduced into and passed through the catalyzer unit before the catalyzed part of the fuel/air mixture flows together with the remaining portion of the fuel/air mixture into the combustion chamber. rising: a turbine defining an exhaust gas flow path therethrough, a turbine inlet to said flow path and a turbine outlet from said flow path; a compressor driven by said turbine and including a compressor inlet and a compressor outlet; and an adjustable vane assembly for at least one of said turbine inlet and said turbine outlet, said adjustable vane assembly including a housing, a controllable vane cartridge disposed in said housing, said cartridge having vanes therein, said vanes each having a plurality of vane sections each configured in a different vane geometry, said cartridge adapted for movement in said housing for selectively positioning said vane sections into and out of said exhaust gas flow path, and an adjustment device associated with said cartridge for moving said cartridge in said housing. 11. The turbocharger of claim 10, said vanes having at least three vane sections, each said vane section having a vane geometry different from the vane geometry of the other said vane sections. 12. The turbocharger of claim 10, said adjustable vane assembly disposed in said turbine inlet. 13. The turbocharger of claim 12, including an adjustable vane assembly disposed in said turbine outlet. 14. The turbocharger of claim 10, said adjustable vane assembly disposed in said turbine outlet. 15. The turbocharger of claim 10, said adjustment device including a pneumatic system. 16. The turbocharger of claim 10, said adjustment device including a mechanical actuator. 17. The turbocharger of claim 10, said adjustment device including an engine sensor adapted to ascertain an operating condition of an internal combustion engine, and a controller connected to said sensor and responding to said operating condition to operate said adjustment device. 18. The turbocharger of claim 10, said plurality of vane sections including a vane section having a continuously varying vane geometry transitioning from a first vane geometry to a second vane geometry. 19. A method of operating an internal combustion engine, comprising the steps of: providing a plurality of combustion cylinders, an first exhaust manifold and an intake manifold; transporting exhaust gas from said combustion cylinders to said exhaust manifold; providing a turbocharger including a turbine having an exhaust gas flow path there through, a turbine inlet and a turbine outlet, and a compressor having a compressor inlet and a compressor outlet; providing an adjustable vane assembly for at least one of said turbine inlet and said turbine outlet, and providing in said vane assembly a housing, and vanes each having a plurality of vane sections each of a different vane geometry, and an adjustment device for move said vane sections into and out of said flow path; rotatably driving said turbine with exhaust gas introduced at said turbine inlet; introducing combustion gas at said compressor inlet; transporting combustion gas from said compressor outlet to said intake manifold; sensing at least one of operating conditions of said engine and performance of said turbocharger; controlling said adjustment device in response to at least one of said engine operating conditions and said performance of said turbocharger; moving said vanes in said housing; and positioning a selected vane section in said exhaust gas flow path while moving other vane sections out of said exhaust gas flow path. 20. The method of claim 19, including providing said adjustable vane assembly at said turbine inlet, and controlling flow characteristics of exhaust gas flow entering said turbine. 21. The method of claim 20, including providing a second adjustable vane assembly at said turbine outlet, and controlling flow characteristics of exhaust gas flow exiting said turbine. 22. The method of claim 19, including providing said adjustable vane assembly at said turbine outlet, and controlling flow characteristics of exhaust gas flow exiting said turbine.