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US 11,686,219 B2Granted
Lubricant system
AssigneeGE Avio S.r.l.
InventorsPietro Molesini, Alberto Frezet, Saypen Baraggia Au Yeung
Life of this patent
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Abstract
A lubricant system for supplying lubrication to a component in a turbine engine includes a lubricant reservoir, a supply line fluidly coupling the lubricant reservoir to the component in the turbine engine, a scavenge line fluidly coupling the component to the lubricant reservoir, and a bypass line fluidly coupling the supply line to the scavenge line and bypassing the component.
Claims17
A lubricant system for supplying lubrication to a component in a turbine engine, the lubricant system comprising:
- a lubricant reservoir;
- a supply line fluidly coupling the lubricant reservoir to the component in the turbine engine;
- a scavenge line fluidly coupling the component to the lubricant reservoir;
- a bypass line fluidly coupling the supply line to the scavenge line and bypassing the component;
- a first sensing position located in the supply line upstream of the component, the first sensing position providing a first output indicative of a first lubricant parameter in the supply line;
- a second sensing position located in the scavenge line downstream of the component, the second sensing position providing a second output indicative of a second lubricant parameter in the scavenge line;
- and
- a bypass valve fluidly coupled to the supply line, the bypass line, the first sensing position and the second sensing position and controlling a flow of lubricant through the bypass line based on the first output and the second output,
- wherein the bypass valve is configured to (1) decrease lubricant flow through the bypass line when at least one of the first lubricant parameter or the second lubricant parameter exceeds a predetermined threshold temperature or (2) increase lubricant flow through the bypass line when a difference between the first lubricant parameter and the second lubricant parameter is below a predetermined threshold temperature difference.
6 more elements
A turbine engine, comprising:
- a compressor, a combustor, and a turbine in axial flow arrangement;
- a shaft operably coupled to at least one of the compressor, the combustor, or the turbine;
- a lubricated component operably coupled to at least one of the compressor, the combustor, the turbine, or the shaft;
- and
- a lubricant system fluidly coupled to the lubricated component and comprising:
- a lubricant reservoir;
- a supply line fluidly coupling the lubricant reservoir to the lubricated component;
- a scavenge line fluidly coupling the lubricated component to the lubricant reservoir;
- a bypass line fluidly coupling the supply line to the scavenge line and bypassing the lubricated component;
- a first sensing position providing a first output indicative of a first lubricant parameter in the supply line;
- a second sensing position providing a second output indicative of a second lubricant parameter in the scavenge line;
- and
- a bypass valve fluidly coupled to the first sensing position and the second sensing position and controlling a flow of lubricant through the bypass line based on the first output and the second output,
- wherein the bypass valve is configured to decrease lubricant flow from the supply line to the bypass line when at least one of the first lubricant parameter or the second lubricant parameter exceeds a predetermined threshold temperature.
11 more elements
Dependencies are inferred from the claim text.