Borgwarner Inc.

Other

Brock Fraser

David George Grabowska

Paul K Anschel

Philip J Mott

Frederick Michael Huscher

Michael Harris

Thomas A Grissom

Charles J Kurle

Kurt Henderson

Michael Sean Ward

Austin L Hoke

Mike Ausbrooks

Allen Stoner

Allen D Stoner, Ii

Michael Ward

To solve the problems of compressor wheel blade flow separation causing surge type noises when an exhaust gas recirculation (EGR) duct introduces into the compressor exhaust gases to be returned to the engine, the exhaust gas is fed into an annular volume, defined between inner and outer walls or an annular transition cavity shaped as a radially expanded, axially flattened cylindrical space in the compressor inlet, so that the generally unidirectional radial flow from an EGR duct is re-directed and organized as it is turned from generally radial to generally axial, merging with the general inlet flow and presenting the compressor wheel with airflow of 'circumferentially uniform' flow velocity.

Compressor recirculation into annular volume

In a lubrication and cooling system for an electric machine operably driven by a turbine, a rotatable shaft may extend through an electric machine housing and a first and second bearing may be operably spaced apart from each other and coupled to the rotatable shaft. Furthermore, an electromagnetic rotor may be coupled to the rotatable shaft and disposed between the first and second bearings. A stator may be fixedly attached within the electric machine housing such that the electromagnetic rotor freely rotates along with the rotatable shaft. Additionally, a fluid passage defined in the electric machine housing delivers a portion of fluid to lubricate the first and second bearings and the remaining portion of fluid to circumferentially flow around the stator such that the fluid is in thermal communication with an outside surface of the stator to help maintain a desired operating temperature of the electric machine.

Cooling and lubrication system for a turbocharger

A number of variations may include a product comprising: a turbomachinery device comprising: an electric motor surrounding a portion of a shaft constructed and arranged to selectively drive the shaft in rotation about a rotational axis, wherein the electric motor further comprises a stator comprising a lamination stack; a housing surrounding the electric motor, wherein the housing includes a plurality of channels constructed and arranged to lubricate a first bearing; and wherein the lamination stack includes at least one retention component wherein the retention component is constructed and arranged to locking the stator in an axial direction while locking rotation of the stator about the rotational axis and wherein the retention component further comprises at least one conduit constructed and arranged to pass fluid through the electric motor to a second bearing.

Retention component for turbomachinery device

A heat shield for a turbocharger has a disc-like configuration. The heat shield includes an outer radial portion, an outer wall, a connecting wall, and an inner wall. The outer radial portion is disposed circumferentially around an axis of the heat shield. The outer wall extends from the outer radial portion in a first axial direction. The connecting wall extends radially inward substantially perpendicularly from the outer wall. The inner wall extends substantially perpendicularly from the connecting wall in a second axial direction opposite the first axial direction.

Turbocharger heat shield

A product comprising a turbocharger comprising a turbine operatively connected to a compressor, an exhaust conduit connected to an inlet of the turbine, a bleed path connected to an outlet of the compressor, the bleed path comprising at least one of an open end to discharge compressor air to the atmosphere or an end connected to the exhaust conduit up stream of the turbine constructed and arranged to flow air from the compressor into the turbine.

Systems including an electrically assisted turbocharger and methods of using the same

To solve the problems of compressor wheel blade flow separation causing surge type noises when a compressor return or recirculation valve is opened or closed, recirculation airflow from a compressor recirculation valve is fed into an annular volume, defined between inner and outer walls or shaped as a radially expanded, axially flattened cylindrical space in the compressor inlet, so that the generally unidirectional radial flow from the compressor recirculation valve is re-directed and organized as it is turned from generally radial to generally axial, merging with the general inlet flow and presenting the compressor wheel with airflow of'circumferentially uniform' flow velocity.

A number of variations may include a product comprising: an electrified turbocharger comprising: an electric motor surrounding a portion of a shaft constructed and arranged to selectively drive the shaft, wherein the electric motor further comprises a stator comprising a lamination stack; a housing surrounding the electric motor, wherein the housing includes a plurality of channels constructed and arranged to lubricate a first bearing; and wherein the lamination stack is constructed and arranged to include at least one conduit to pass oil through the electric motor to a second bearing.

Oil supply conduit through stator lamination stack for electrified turbocharger

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

A turbocharger () having a compressor housing () and a bearing housing (). The compressor housing () including an elliptical shaped wall () extending between an air inlet () and a volute () formed by the compressor housing (). The bearing housing () forms a flat bearing housing wall () opposing the compressor wall () wherein the compressor wall () and bearing housing wall () form an elliptical diffuser () between the air inlet () and the volute ().

Turbocharger compressor with an elliptical diffuser wall

A drive system () for a vehicle includes an electric motor () and a gas turbine assembly (). The electric motor () includes a rotor () coupled to a drive shaft (). The gas turbine assembly () includes a turbine () including a turbine wheel () mounted on the drive shaft (), a burner () that burns fuel and provides exhaust gas to drive the turbine wheel (), and a compressor () that provides compressed air to the burner (). The gas turbine assembly () is coupled to the drive shaft () of the electric motor (). The drive system () also includes gear train unit () that has the drive shaft () as an input shaft, has an output shaft () connected to vehicle wheels (), and transmits power from one of the electric motor () or gas turbine assembly () to the wheels ().

High speed traction motor for a vehicle also having an auxiliary open Brayton cycle power assist and range extender

To solve the problems of compressor wheel blade flow separation causing surge type noises when a compressor return or recirculation valve is opened or closed, bypass airflow from a compressor recirculation valve is fed into an annular volume, defined between inner and outer walls or shaped as a radially expanded, axially flattened cylindrical space in the compressor inlet, so that the generally unidirectional radial flow from the compressor recirculation valve is re-directed and organized as it is turned from generally radial to generally axial, merging with the general inlet flow and presenting the compressor wheel with airflow of 'circumferentially uniform' flow velocity.

A two-stage turbocharging system with a high pressure (HP) turbine and a low pressure (LP) turbine, exhaust piping connecting an engine to the HP turbine inlet, exhaust piping connecting the HP turbine outlet to the LP turbine inlet, piping connecting the LP turbine outlet to an aftertreatment device, and branched bypass piping having an inlet and first and second branches, the inlet connected to the engine to HP turbine inlet exhaust piping, the first branch outlet connected to the LP turbine inlet, the second branch outlet connected to the aftertreatment device, and an R2S valve in the first branch and a warm-up valve in said second branch. By opening of the valve, exhaust gas can bypass both the HP and LP turbines and flow to, e.g., the catalytic converter. The R2S valve and the warm-up valve may be integrated into a single exhaust flow control unit.

Growing community of inventors

Asheville, NC, United States of America

Brock Fraser