General Electric Company

Mark Eden Zentgraf

Duane Howard Anstead

Bala Corattiyil

Gary Paul Moscarino

Charles Robert Granitz

Robert Proctor

Ning Fang

Kenneth Lee Fisher

Pradeep Hemant Sangli

Stephen Anthony Wilton

Prasad Laxman Kane

Ray Harris Kinnaird

Ramon Themudo

David William Pugh

The present invention provides a free vortex air-oil separator that may be used in systems for separating oil from air oil mixtures. The free vortex air-oil separator comprises a free vortex chamber having a first chamber wall, a second chamber wall located axially aft from the first chamber wall and a rim located in a radially outer region from an axis of rotation, a plurality of vent holes in the rim and a cavity formed by the first and second chamber walls, and the rim, wherein a free vortex is created when there is a flow into the cavity through the plurality of vent holes.

Free vortex air-oil separator

The present invention provides a vortex generator that may be used in systems for separating oil from air oil mixtures. The vortex generator comprises a rotating disk having a rim having a plurality of passages extending through it and a cavity formed by the rotating disk and a cavity wall wherein a vortex is created when there is a flow through the plurality of passages into the cavity.

Vortex air-oil separator system

A system for reducing oil usage from a sump in a gas turbine engine. Two sources of oil usage, which usage includes leakage and consumption, have been identified: (1) during idle, leakage of oil from an oil sump through seals and (2) during high-power operation, consumption of oil entrained in vent air exiting from the sump. At idle, the invention reduces pressure in the sump, to thereby increase airflow across the seals into the sump, to inhibit the oil leakage across the seals. At high power operation, the pressure reduction is terminated, but flow exiting the vent is artificially restricted.

System for reducing oil consumption in gas turbine engines

A method facilitates assembling a gas turbine engine that includes an oil supply and scavenge system, wherein the oil supply and scavenge system includes at least one sump cavity that includes a first scavenge port and a second scavenge port, a first oil pump and a second oil pump such that the first oil pump is in flow communication with and receives scavenge oil from the first scavenge port and the second oil pump is in flow communication with and receives scavenge oil from the second scavenge port. In addition, an oil supply source is coupled in flow communication with the first and second oil pumps.

'Get home' oil supply and scavenge system

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Cincinnati, OH, United States of America

Mark Eden Zentgraf