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US 10,648,365 B2Granted
Gas turbine engine bearing sump and lubricant drain line from cooling passage
AssigneeGeneral Electric Company
InventorsKyle Robert Snow, Brandon Wayne Miller, Duane Howard Anstead, Jonothan Allen Scheetz, Mohammed El Hacin Sennoun, Ning Fang
Life of this patent
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Abstract
A gas turbine engine having a core engine. The core engine includes an inlet, a compressor section, a combustion section, a turbine section, and an exhaust. The gas turbine engine also includes a bearing sump arranged in the core engine for containing lubrication, the bearing sump and lubrication having an operational range between at least about 0° F. and about 550° F.
Claims16
A gas turbine engine comprising:
- a core engine including an inlet, a compressor section, a combustion section, a turbine section, and an exhaust, the turbine section comprising a turbine and the core engine defining a rotor bore cavity inward of the turbine;
- a bearing sump arranged in the core engine and defining a sump cavity;
- a single drain compartment positioned between the sump cavity of the bearing sump and the rotor bore cavity of the core engine and comprising a drain seal and defining a primary drain cavity, wherein the bearing sump comprises a sump seal, wherein the sump seal separates the sump cavity of the bearing sump from the primary drain cavity of the single drain compartment, and wherein the drain seal separates the primary drain cavity of the single drain compartment from the rotor bore cavity;
- a drain line fluidly connecting the primary drain cavity to a core air flowpath of the core engine;
- and
- a cooling channel combined with the drain compartment through an opening, wherein the drain line is fluidly connected to the drain cavity through the cooling channel.
3 more elements
A gas turbine engine comprising:
- a core engine including an inlet, a compressor section, a combustion section, a turbine section, and an exhaust, the core engine defining a rotor bore cavity inward of the turbine;
- a bearing sump arranged in the core engine for containing a lubrication and defining a sump cavity, the bearing sump and lubrication having an operational range between at least 0 degrees Fahrenheit and 550 degrees Fahrenheit;
- a single drain compartment positioned between the sump cavity of the bearing sump and the rotor bore cavity of the core engine comprising a drain seal and defining a primary drain cavity, wherein the bearing sump comprises a sump seal, wherein the sump seal separates the sump cavity of the bearing sump from the primary drain cavity of the single drain compartment, and wherein the drain seal separates the primary drain cavity of the single drain compartment from the rotor bore cavity;
- a drain line fluidly connecting the drain cavity to a core air flowpath of the core engine;
- and
- a cooling channel combined with the drain compartment through an opening, wherein the drain line is fluidly connected to the drain cavity through the cooling channel.
3 more elements
Dependencies are inferred from the claim text.