Borgwarner Inc.

David J Ledger

Daniel Thomas Pruitt

Thomas Craig Harris

Paul Edmonds

Zachary Ashton

Sean N Hastings

Jonathan Reid Williams

Evan Lucas

Matt Tondra

Thomas C Harris

A linkage extends between an actuator and a valve in a turbocharger. The linkage comprises two spaced member bodies having central portions with opposing curved shapes that extend between ends translatable along and rotatable about spaced pivots. Translation of one member toward the other member compresses the central portions, increasing overall stiffness of the linkage, and translation of one member away from the other member creates a gap between the central portions, allowing independent translation of the ends along the spaced pivots to compensate for misalignment between the actuator and the valve caused by heat and vibration. Another linkage extending between an actuator and a valve in a turbocharger includes two planar spaced member bodies extending between ends translatable along and rotatable about spaced pivots. The two member bodies have different thicknesses.

Kinematic compliant linkage for turbocharger

A laser cutting device () is configured to etch an inner surface of a journal bearing (). The laser cutting device () includes a laser (); a beam directing tool () that receives a beam () emitted from the laser () and selectively changes the direction of travel of the beam (); a fixture () that supports the journal bearing () in a desired position relative to the beam directing tool (); an actuator () connected to one of the beam directing tool () and the fixture (), the actuator () providing relative movement between the beam directing tool () and the fixture (); and a controller () that controls the intensity and duration of the beam () emitted from the laser (); and the actuator (), whereby material can be removed from a surface of the journal bearing () to a precise width and depth, and in any pattern.

Method and laser device for forming grooves in bearing surfaces, and bearings including such grooves

An annular balance adjusting device () is included in the clamping region of a turbocharger () rotating assembly. The annular balance adjusting device () includes an annular member () having a non-uniform weight distribution. By setting the rotational orientation of the annular member () relative to the rotating assembly ((not labeled)), imbalance of the rotating assembly can be addressed. The annular balance adjusting device () can be used to correct the imbalance of the rotating assembly, thereby reducing turbocharger () vibration and increasing turbocharger () durability.

Devices and method for adjusting turbocharger rotating assembly balance

A turbocharger includes ported shroud compressor housing disposed about compressor wheel having air inlet passage extending axially along and circumferentially about a longitudinal axis, volute base portion operably adjacent to compressor wheel, contour that encircles and complementarily matches compressor wheel, inducer including ring and plurality of extending members, inlet section extending from volute base portion, and recirculation cavity formed in volute base portion and inlet section with recirculation slot and inlet slot for reentry of airflow into inlet section. The ring has inner wall surface defining first section extending axially along longitudinal axis proximate to compressor wheel, second section extending from first section radially away from longitudinal axis, and third section extending from second section radially away from and along longitudinal axis and distal to compressor wheel. The inlet section has first diameter and third section has second diameter being either one of equal to or less than first diameter.

Turbocharger having improved ported shroud compressor housing

A turbocharger includes ported shroud compressor housing disposed about a compressor wheel, having an air inlet passage extending axially along and circumferentially about a longitudinal axis, volute base portion operably adjacent to compressor wheel, contour that encircles and complementarily matches compressor wheel, inducer including ring and plurality of extending members, inlet section extending from volute base portion, and recirculation cavity formed in volute base portion and inlet section with a recirculation slot and inlet slot for reentry of airflow into inlet section. The ring has an inner wall surface defining a first section extending axially along the longitudinal axis and proximate to the compressor wheel, second section extending from first section radially away from longitudinal axis, and third section extending from second section along longitudinal axis and distal to the compressor wheel. The inlet section has a first diameter and third section has a second diameter greater than first diameter.

Growing community of inventors

Asheville, NC, United States of America

David J Ledger