F01D17/146

Turbocharger System For A Two-Stroke Engine

A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.

Exhaust flow control valve with integrated wastegate
11187134 · 2021-11-30 · ·

An exhaust manifold for an internal combustion engine is provided. The manifold comprises at least one first exhaust gas inlet connectable to a first bank of cylinders of the engine, and at least one second exhaust gas inlet connectable to a second bank of cylinders of the engine. First and second exhaust gas outlets are connectable to respective first and second volutes of a twin volute turbocharger. At least one wastegate outlet is connectable to a bypass passage which bypasses the turbocharger. A diverter valve is located within the manifold, wherein the diverter valve is adapted to selectively direct exhaust gas from the first and second inlets to at least one of the first and second exhaust gas outlets and the wastegate outlet. A turbocharger is also provided having the same diverter valve arrangement, as are internal combustion engines having either the manifold or turbocharger, and a vehicle having such an internal combustion engine.

Air-guiding section for an exhaust turbocharger and exhaust turbocharger

An exhaust turbocharger includes an air-guiding section. A spiral channel is formed downstream of a wheel chamber in the air-guiding section. Between the wheel chamber and the spiral channel, a diffuser channel is formed in the air-guiding section. Upstream of the wheel chamber, an inlet channel is formed in the air-guiding section for the inflow of fluid to be compressed. In the inlet channel, a cross-section-changing unit. The cross-section-changing unit comprises an operating element with at least two movable element parts to produce a baffle which can protrude, with the aid of an adjusting unit, into the inlet cross-section rotationally and/or in a translational manner or can be removed from the inlet cross-section. The two element parts are fixedly disposed at one element end jointly in the air-guiding section. A relative movement of the element parts can be brought about in particular in an opposing direction.

Turbocharger system for a two-stroke engine

A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.

Turbocharger System For A Two-Stroke Engine

A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.

VARIABLE TURBINE GEOMETRY COMPONENT WEAR MITIGATION IN RADIAL TURBOMACHINES WITH DIVIDED VOLUTES BY AERODYNAMIC FORCE OPTIMIZATION AT ALL VANES OR ONLY VANE(S) ADJACENT TO VOLUTE TONGUE(S)

An entryway system includes a divided volute turbocharger having variable turbine geometry (VTG). The turbocharger includes a turbine housing, first and second volutes separated by a wall having a first and second tongue, and a turbine housing outlet. The system also includes a turbine wheel disposed in the turbine housing and a vane ring disposed in the turbine housing between the turbine wheel and the volutes. The system includes design modifications of one or more of the VTG components and/or locations of such components to manipulate the aerodynamic forces and/or subsequent mechanical loads in the VTG mechanism of the entryway system to mitigate VTG component wear during normal usage.

Turbocharger

As seen in a section parallel to a central axis of a shaft and including the center of gravity of a valve surface, with respect to the center of gravity, an end of the valve surface on the side of a first shaft direction is located on the side of a first direction in a direction orthogonal to the central axis of the shaft. As seen in a section orthogonal to the central axis of the shaft and including the center of gravity when the central axis of the shaft and a central axis of a through-hole coincide with each other, with respect to the center of gravity, an end of the valve surface on the side of a second direction in a direction along the valve seat surface is located on the side of the first direction in a direction orthogonal to the valve seat surface.

Valve assembly for a multi-scroll turbine

The invention relates to a valve assembly (100) for a multi-scroll turbine (10) for controlling an overflow of exhaust gases between a first spiral (36) and a second spiral (38) and for controlling a bypass opening (50). The valve assembly 100 comprises a lever (110) and a valve closing element (120) which is operatively connected to the lever (110). Furthermore, the valve assembly (100) comprises a spring element (130) which is designed to pre-bias the valve closing element (120) the against lever (110).

Compressor with variable compressor inlet

A compressor with a compressor housing in which a compressor wheel is arranged. The compressor additionally includes a cartridge which is arranged in the compressor housing in the area of a compressor inlet. The cartridge is designed to variably change the cross section of the compressor inlet.

Turbine with adjusting ring

The invention relates to a turbine comprising a turbine housing defining a volute having a substantially annular outlet opening, a turbine wheel, and an adjusting ring, rotatable about the turbine axis, which is arranged in the turbine housing radially between the volute and the turbine wheel, wherein the adjusting ring comprises a flow channel between a radially outer first peripheral opening and a radially inner second peripheral opening, and wherein the outlet opening is fluidically coupled to the turbine wheel by the flow channel. The outlet opening and the first peripheral opening have a path, variable in the axial direction, so that during a rotation of the adjusting ring, the outlet opening and the first peripheral opening are adjusted relative to each other in such a way that an overflow cross section between the outlet opening and the first peripheral opening is variably changeable.