Borgwarner Inc.

Thomas A Grissom

Volker Joergl

Murray Busato

Robert J Telep

Brock Fraser

Hartmut Claus

Steven R McKinley

Mike Ausbrooks

Matthew B Delavan

Steve McKinley

A turbocharger with a turbine () having a turbine wheel () in a turbine housing () with an associated manifold () having individual ports () corresponding to unobstructed passageways () from each cylinder of an engine. The ports () are substantially equally spaced around a face of the turbine wheel () to preserve benefits of pulses without interference.

Pulse energy enhanced turbine for automotive turbochargers

One exemplary embodiment may include an engine breathing system including an exhaust driven auxiliary air pump to flow air directly into the exhaust side of the breathing system.

Exhaust driven auxiliary air pump and products and methods of using the same

A regulated two-stage turbocharger system is provided. The turbocharger system includes high-pressure and low-pressure turbochargers in communication with one another. The turbocharger system includes a valve system having valves that are independently controllable so as to selectively control the gas flow into the turbine portions of the high-pressure turbocharger and the low-pressure turbocharger. The valves are asymmetric with differing perimeters, diameters, and sizes with respect to one another.

Turbine regulating valve system

The present invention is a turbocharger () and control system based strategy to control exhaust gas filters () for aftertreatment regeneration. The air handling system () uses the variable turbine geometry (VTG) of the turbine () and a compressor () flow control bleed valve () to drive pressurized intake air into the exhaust. The oxygen rich exhaust gas can then be mixed with fuel and combusted. Increasing the temperature of the exhaust gas will combust the excess exhaust gas emissions and reduce the pressure drop across the filter (). This system () can be used under any operating conditions so as to be available to combust the excess exhaust gas emissions when needed.

Air handling system with after-treatment

The present invention provides a two-stage turbocharger unit having a valve that will help to create a smooth transition of exhaust gas energy from the high-pressure turbine (HP) turbine to the low-pressure (LP) turbine. The LP and HP turbines are positioned such that the valve can be in one position to force all of the exhaust gas to flow through the HP turbine and when in another position to force all of the exhaust gas through the LP turbine. When the valve is placed in an intermediate position, the exhaust gas can be variably directed to flow through both turbines, with the percentage of exhaust gas flowing through each turbine being dependent on the position of the valve.

Valve regulation for turbocharger

A regulated two-stage turbocharger system is described, including high-pressure and low-pressure turbocharger units. The low-pressure turbocharger unit includes a twin volute turbine portion. The turbocharger system includes a valve system having valve members that are independently controllable so as to selectively control an exhaust gas flow into the twin volutes of the turbine portion of the low-pressure turbocharger unit. By-pass valve systems are also provided for the twin volute turbine portion of the low-pressure turbocharger unit and the compressor portion of the high-pressure turbocharger unit.

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Dexter, MI, United States of America

Thomas A Grissom