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US 12,258,878 B2Granted
Lubricant system
AssigneeGE Avio S.r.l.
InventorsPietro Molesini, Alberto Frezet, Saypen Baraggia Au Yeung
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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.
Claims19
A method of supplying lubricant to a component within a turbine engine, the method comprising:
- recirculating a lubricant through a recirculation line from a reservoir, through the component, and back to the reservoir;
- sensing a first parameter of the lubricant upstream of the component;
- sensing a second parameter of the lubricant downstream of the component;
- and
- controlling a flow rate of the lubricant to the component based on the sensed first and second parameters, wherein controlling the flow rate comprises:
- controlling a first bypass valve to decrease a lubricant flow through the first bypass valve when at least one of the first parameter or the second parameter exceeds a predetermined threshold temperature;
- or
- controlling the first bypass valve to increase a lubricant flow through the first bypass valve when a difference between the first parameter and the second parameter is below a predetermined threshold temperature difference.
5 more elements
A method of supplying lubricant to a component within a turbine engine, the method comprising:
- recirculating a lubricant through a recirculation line from a reservoir, through the component, and back to the reservoir, the recirculation line including a supply line, a bypass line, and a scavenge line in fluid communication with the component and the reservoir;
- sensing a first parameter of the lubricant upstream of the component;
- sensing a second parameter of the lubricant downstream of the component;
- controlling a flow rate of the lubricant to the component based on the sensed first and second parameters;
- and
- sensing the first parameter in the supply line and sensing the second parameter in the scavenge line,
- wherein controlling the flow rate of the lubricant comprises controlling a bypass valve fluidly coupled to the supply line and the bypass line downstream of the sensing of the first parameter and upstream of the component.
4 more elements
Dependencies are inferred from the claim text.