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US 9,850,779 B2Granted
Lubrication system for a gas turbine engine
AssigneeROLLS-ROYCE plc
InventorsStephen M. Gatto, Vaino E. Ajango, Michael L. Benson
Life of this patent
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Abstract
A gas turbine engine includes a lubrication system for distributing lubricant throughout the engine. The lubrication system includes a breather assembly that receives air and lubricant from various other components of the lubrication system. The breather assembly includes a baffle that redirects air and lubricant received by the breather assembly.
Claims18
A lubrication system for a gas turbine engine, the lubrication system comprising
- an oil tank,
- a sump housing a bearing, and
- a breather assembly coupled to the oil tank, the sump, and atmosphere, the breather assembly including a breather housing that defines a breather cavity, a tank port arranged to transport oil droplets and carrier air from the oil tank into the breather cavity, a vent port arranged to transport air from the breather cavity to the atmosphere, a sump air-bleed port arranged to transport pressurized air from the sump into the breather cavity, and a sump oil-return port arranged to transport oil from the breather cavity to the sump,
- wherein the breather assembly further includes a baffle arranged in the breather cavity between the tank port and the sump air-bleed port to block pressurized, relatively high-velocity air from the sump air-bleed port from directly impinging into the tank port.
1 more element
A lubrication system for a gas turbine engine, the lubrication system comprising
- an oil tank,
- a sump housing a bearing, and
- a breather assembly coupled to the oil tank, the sump, and atmosphere, the breather assembly including a breather housing that defines a breather cavity and a baffle arranged in the breather cavity between a tank port that leads from the breather cavity to the oil tank and a sump air-bleed port that leads from the breather cavity to the sump to block pressurized air from the sump air-bleed port from directly impinging into the tank port.
Dependencies are inferred from the claim text.