Borgwarner Inc.

General Electric Company

Michael Jay Burkett

Michael Harris

Robert Lotz

Robert Malcolm Wallace

Paul Troxler

Joseph Powell McHenry

Edwin Hidding

Bharat S Bagepalli

Stephen Bertram Johnson

Zachary Ashton

Rajmohan Chandramohanan

Mayank Tiwari

Stephan Klümper

Eric Arthur Baker

Pradip Radhakrishnan Subramaniam

Holger Grünwaldt

Joseph Powell Mchenry

In accordance with one aspect of the present disclosure, a turbocharger includes a compressor having a compressor wheel, a turbine provided within a housing, and an exhaust gas recirculation (EGR) flow path. The EGR flow path includes a first fluid connection in the housing and located in proximity to the turbine, a second fluid connection located in proximity to a trailing edge of the compressor wheel, an EGR control valve disposed between the first fluid connection and the second fluid connection, the EGR control valve configured to selectively operate the turbocharger in a low-heat mode having an EGR up to 50% and an operational mode having an EGR rate typically less than 35%.

High efficiency turbocharger with EGR system

A turbomachine face seal includes a turbine wheel with a cylindrical shaft extending from the turbine wheel, defining an axis of rotation. The shaft may include a heat throttle, such as a piston ring and groove assembly, or a shaft weld pocket having an annular heat choke groove. Circumscribing the shaft is a casing and a seal ring having a groove with a seal element. To cool the seal element, a pressurized oil jet is directed toward the casing, and impinges against the casing. The oil jet may be angled or parallel with the axis of rotation. The casing may be configured to trap oil from the oil jet to cool the seal element.

High temperature face seal

A lubrication system for a fluid turbine is provided. The system includes a supply subsystem for providing oil via an oil tank or a hydraulic accumulator to a gearbox of the fluid turbine for lubrication during at least one of idling or loss of electric grid. The system also includes a control subsystem for controlling the flow in the lubrication system.

Lubrication of fluid turbine gearbox during idling or loss of electric grid

A wind turbine is provided having a gearbox containing a lubrication medium, a pump for circulating the lubrication medium, and a gearbox lubrication suction pipe for transporting the lubrication medium from the gearbox to the pump. A heater is in thermal connection to, at least a portion of, the gearbox lubrication suction pipe. This heater is used to heat the lubrication medium contained within the gearbox lubrication suction pipe to a temperature where damage to the pump is avoided.

Lubrication heating system and wind turbine incorporating same

Growing community of inventors

Lyman, SC, United States of America

Michael Jay Burkett