Borgwarner Inc.

Evan Lucas

Sean N Hastings

Christian Longacre

Zachary Ashton

Jason Paul Moscetti

Daniel Thomas Pruitt

David J Ledger

Srikar Yellapragada

Patrick Kennedy

Brian Stevens

Matt Tondra

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

An exhaust gas turbocharger () including a turbine section (), a compressor section (), a bearing housing () disposed between an fluidly connected to the turbine section () and the compressor section (), and an oil flow means connected to the bearing housing () for controlling and metering oil flow to the bearing assembly ().

System and method for distributing and controlling oil flow

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

A compressor housing may include a shroud portion which is axially spaced from an inlet portion and configured to at least partially surround the compressor wheel. The compressor housing may be further configured to include a recirculation cavity which is formed between an exterior surface of the shroud portion and an interior surface of the compressor housing. Furthermore, a recirculation slot may define an airflow pathway between the recirculation cavity and the compressor wheel. Additionally, the compressor housing may include an angled shroud support extending radially through the recirculation cavity from the exterior surface of the shroud portion to the interior surface of the compressor housing. The angled shroud support may be spaced an axial distance away from the recirculation slot to reduce turbulence in the airflow as the airflow moves from the recirculation cavity to the compressor wheel.

Ported shroud geometry to reduce blade-pass noise

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 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

Asheville, NC, United States of America

Evan Lucas