Borgwarner Inc.

Sean N Hastings

Evan Lucas

Craig Andrew Colont

Dominic William DePaoli

Matthew Carson Colley

Erwin Perry Ellwood, Iii

Zachary Ashton

Ryan Howell

Jonathan Reid Williams

David J Ledger

Christian Longacre

Thomas Craig Harris

Srikar Yellapragada

Patrick Kennedy

Brian Stevens

Matt King

Steven Cagle

Thomas C Harris

High cycle fatigue (HCF) in a turbine wheel of a sector-divided dual volute turbocharger, particularly a turbocharger where the tongue-to-blade gap is as small as from 1-3% of the wheel diameter, is reduced, and energy extraction is optimized, using a turbine wheel with (blade stiffness/backwall stiffness&#xd7;100) between 41 and 44.

Method of reducing turbine wheel high cycle fatigue in sector-divided dual volute turbochargers

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

High cycle fatigue (HCF) in a turbine wheel of a sector-divided dual volute turbocharger, particularly a turbocharger where the tongue-to-blade gap is as small as from 1-3% of the wheel diameter, is reduced using a turbine wheel with (blade stiffness/backwall stiffness&#xd7;100) between 41 and 44.

A number of variations may include a product including an inline diagnostic device connected to a control status line at a position between an electronic control unit (ECU) and a turbocharger component actuator, the inline diagnostic device being constructed and arranged to intercept data being transmitted from the actuator to the ECU, and to process the data intercepted from the actuator to determine whether the components are binding or sticking, and to transmit a signal indicating that the components are binding or sticking.

Inline sticky turbocharger component diagnostic device and system and method of using the same

Wooden lamp shade

A bearing system and method may include a first bearing assembly that may have an inner race. An outer race may be disposed around the inner race and may be rotatable relative to the inner race. A second bearing assembly may be disposed around the first bearing assembly. The second bearing assembly may be an air bearing. The outer race may be engageable with the inner race through the engagement mechanism that acts on the outer race so that the inner and outer races rotate together.

Compound air and mechanical bearing system and method

A turbocharger assembly is disclosed with a connected lever. An actuator may be spaced away from the lever. An arm may extend from the actuator and may be connected to the lever by a preloaded joint. The joint may include a pin fixed to the lever or the arm. An opening may be provided in the lever or the arm to which the pin is not fixed. The pin may have a shaped section that matches the shape of the opening to provide selected degrees of freedom. A spring element may be engaged in the groove and may apply a force to the pin compensating for wear between the pin and the mating surface by pulling the pin into the opening under the force.

Anti-rattle geometry for waste gate linkages using preloading technologies to reduce wear

An apparatus includes a bearing housing, a shaft assembly that extends through the bearing housing along a shaft axis, an annular groove formed on the shaft assembly, and a piston ring assembly that is engaged with the bearing housing and extends into the groove of the shaft assembly. The piston ring assembly includes a first ring portion and a second ring portion. The first ring portion has a first contact face that is oriented at a non-perpendicular with respect to the shaft axis, and the second ring portion has a second contact face that is oriented at a non-perpendicular angle with respect to the shaft axis and is engageable with the first contact face.

Multi-piece piston ring for a turbocharger shaft assembly

A number of variations may include a product for use with a turbocharger system may include a compressor wheel for charging a flow stream. A housing may be disposed around the compressor wheel, defining an inlet passage and a discharge passage. The flow stream may extend through the inlet passage, around the compressor wheel and through the outlet passage. The inlet passage may be configured to impart a supersonic speed to the flow stream to inhibit sound from propagating against the flow stream through the inlet passage.

Growing community of inventors

Arden, NC, United States of America

Sean N Hastings