Daimler Ag

Ihi Charging Systems International Gmbh

Torsten Hirth

Siegfried Sumser

Peter Fledersbacher

Stephan Krätschmer

Gernot Hertweck

Michael Stiller

Siegfried Weber

Paul Löffler

Hans-Georg Lehmann

Nils Brinkert

Manfred Guthoerle

Carsten Van Lil

Slefgried Weber

Andreas Mueller

Timo Schulz

Volker Siedle

An internal combustion engine has first and second combustion chambers, first and second exhaust gas line elements, and an exhaust gas turbocharger which has a first flood, a second flood, and a third flood. A bypass device has a bypass line that can be flowed through by exhaust gas from the first and second exhaust gas line elements and via the bypass line a turbine wheel is bypassed by a first part of the exhaust gas from the first and second exhaust gas line elements. A valve device includes a first valve element, via which an amount of the exhaust gas flowing through the bypass line and bypassing the turbine wheel from the first and second exhaust gas line elements is settable. A third exhaust gas line element opens out into the third flood.

Internal combustion engine for a motor vehicle and motor vehicle having such an internal combustion engine

In a turbine for an exhaust gas turbocharger with a turbine casing having a receiving chamber for accommodating a turbine wheel and at least one volute through which the exhaust gas is guided via a feed passage into the receiving chamber and wherein at least one guide element is provided in the turbine casing so as to project into the feed passage in a guide region for guiding the exhaust gas onto the turbine wheel, the guide element comprises a first length region in the axial direction of the turbine, in which the guide element is designed with respect to its aerodynamic properties differently from its aerodynamic design in a second length region adjoining the first length region.

Turbine for an exhaust gas turbocharger

In an internal combustion engine for a motor vehicle having an exhaust gas turbo-charger comprising a compressor arranged in an intake tract of the internal combustion engine and a turbine arranged in an exhaust gas tract of the internal combustion engine, with a turbine wheel disposed the turbine housing, an adjustment device is provided by means of which a spiral inlet cross section of a spiral turbine inlet channel and a nozzle cross section of the spiral inlet channel to the turbine wheel are jointly adjustable by a common adjustment device. The invention further relates to an exhaust gas turbocharger, a motor vehicle having an internal combustion engine and a method for operating an internal combustion engine having an exhaust gas turbocharger.

Multiple inlet exhaust gas turbocharged engine with an axially moveable and rotatable adjustment ring

In a turbine for an exhaust gas turbocharger of an internal combustion engine having a housing part with accommodation space including a turbine wheel and at least one spiral channel via which exhaust gas of the internal combustion engine may flow. The spiral channel has an outlet cross-section via which the turbine wheel accommodated in the accommodation space may be acted on by the exhaust gas, and has at least one blocking member, which is connected to an adjusting part so as to be movable hereby in the peripheral direction of the accommodation space for adjusting the outlet cross-section (A, A, A). A bypass duct is provided, via which exhaust gas can bypass the turbine wheel and whose flow cross-section is also adjustable by the blocking member moved the adjusting part.

In a turbine for an exhaust gas turbocharger of an internal combustion engine having a housing part which has a receiving chamber and which comprises a spiral duct through which exhaust gas of the internal combustion engine can flow, the spiral duct having an outlet cross-section via which exhaust gas is directed onto a turbine wheel disposed in the receiving chamber whereby the turbine wheel can be rotated, at least one flow control member is provided which can be moved in the circumferential direction of the receiving chamber and by means of which the flow cross-section can be adjusted, wherein a warp angle of the outer contour region of the wall over which the flow cross-section can be adjusted is smaller than a wrap angle over which the outer contour region thereof extends.

Turbine for an exhaust turbocharger of an internal combustion engine

In a turbine for an exhaust gas turbocharger of an internal combustion engine comprising a turbine housing part, which has at least two spiral channels with respective inlets through which exhaust gas of the internal combustion engine is directed onto a turbine rotor disposed in the turbine housing part, the turbine housing part is disposed in an accommodating chamber, which is formed by a further housing part of the turbine, and from which accommodating chamber exhaust gas of the internal combustion engine can flow through the channel inlets into the spiral channels.

Turbine for and exhaust gas turbocharger

In an exhaust gas turbocharger for an internal combustion engine, including a turbine housing and a rotor, the housing having an exhaust gas guide section and the rotor including a turbine wheel and a shaft connected to the turbine wheel which is driven by exhaust gas, and a control device for controlling the exhaust gas flow to the turbine wheel comprising an annular guide vane structure and an axial slide supported on a contour sleeve mounted to the turbine housing remote from the rotor and extending toward the rotor and forming also the turbine exhaust gas discharge duct, the axial slide includes a cavity accommodating the guide vane structure.

Exhaust gas turbocharger for an internal combustion engine

In an exhaust gas turbocharger turbine for an internal combustion engine having a housing including a turbine wheel rotatably supported in the housing, wherein the housing has an exhaust gas flow guide section including an exhaust gas flow control arrangement with a guide vane structure for directing exhaust gas onto the turbine rotor, an adjustment mechanism with an axially movable control slide is provided which is movable by an operating fork which is slidably supported on a guide element and engages the control slide at opposite sides so as to prevent cogging of the movable control slide during movement into, and out of, the exhaust gas flow guide section.

Turbocharger including variable geometry turbine with improved guide element and operating fork

In an exhaust-gas turbine of an exhaust-gas turbo-charger including a turbine wheel which is rotatably supported in a housing and to which exhaust gas can be supplied via an inlet channel and discharged out of the exhaust-gas turbine via an outlet duct, wherein a guide vane structure and an axial slide which interacts with the latter, are disposed in the turbine inlet at the transition from the inlet channel to the turbine wheel, the guide vane structure is fixedly mounted with respect to the housing and the axial slide is arranged at the turbine outlet side and is movably supported on an outlet duct contour sleeve and provided with an axial opening for accommodating the guide vane structure, and the contour sleeve includes openings which conduct exhaust gas from the inlet channel directly to the outlet duct and which are arranged so that they are covered by the axial slide when the axial slide is moved out of its open position, the guide vane structure extending axially over the contour sleeve openings so as to impart a swirl to the exhaust gas being discharged via the contour sleeve openings when the slide member is in an open position.

Exhaust-gas turbine in an exhaust-gas turbocharger

In an exhaust gas turbocharger for an internal combustion engine having a turbine wheel connected, by means of a shaft, to the compressor wheel of a compressor which includes a variable inlet geometry comprising a plunger and a sleeve-shaped partition for controlling an auxiliary duct leading radially to the compressor wheel, which is provided with compressor wheel blades to which air is supplied axially via an axial inlet passage and radially via a radial wheel inlet area, the compressor wheel includes a contoured ring provided at its outer circumferential surface with auxiliary blades disposed over, and aligned with, the compressor wheel blades in the radial and the axial wheel inlet region of the compressor wheel.

In an exhaust gas turbocharger for an internal combustion engine having air intake ducts and exhaust gas discharge ducts including a compressor and a turbine with at least two inlet flow passages, a flow adjusting device () arranged in the exhaust gas discharge ducts upstream of the turbine and including a rotary slide valve for controlling the exhaust gas flow first and second flow channels extending through the rotary slide, a third flow channel extends axially partially through the rotary slide valve via inlet openings at the circumference of the rotary slide which can be brought into overlapping relationship with rotary slide housing openings for controlling the exhaust gas flow from the engine to the turbine.

Growing community of inventors

Rutesheim, Germany

Torsten Hirth