Reconfigurable lubrication system for multiple powertrain orientations
First Claim
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1. A method of assembling a gas turbine engine assembly comprising an engine core extending around a central axis, the method comprising:
- coupling a gearbox to the engine core and arranging the engine core aft of the gearbox along the central axis, the gearbox including a lubrication system having a pump adapted to pressurize oil, a first sump located within a housing and configured to collect oil moved into the first sump by way of gravitational force when the housing is arranged in a first orientation, a second sump located within the housing and configured to collect oil moved into the second sump by way of gravitational force when the housing is arranged in a second orientation, and a manifold fluidly having a plenum;
coupling the pump to a plenum of the manifold by a pump line;
coupling the first sump to the plenum by a first-sump line;
coupling the second sump to the plenum by a second-sump line; and
blocking fluid communication into the plenum from one of the first sump or the second sump by coupling a configuration plate to the plenum.
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Abstract
A gas turbine engine assembly and a method for assembling a gas turbine engine assembly are disclosed herein. The gas turbine engine assembly includes an engine core and a gearbox. The gearbox includes a lubrication system having a first sump and a second sump. The lubrication system is configurable to provide oil from either of the first and second sumps in various configurations of the gas turbine engine assembly.
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Citations
20 Claims
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1. A method of assembling a gas turbine engine assembly comprising an engine core extending around a central axis, the method comprising:
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coupling a gearbox to the engine core and arranging the engine core aft of the gearbox along the central axis, the gearbox including a lubrication system having a pump adapted to pressurize oil, a first sump located within a housing and configured to collect oil moved into the first sump by way of gravitational force when the housing is arranged in a first orientation, a second sump located within the housing and configured to collect oil moved into the second sump by way of gravitational force when the housing is arranged in a second orientation, and a manifold fluidly having a plenum; coupling the pump to a plenum of the manifold by a pump line; coupling the first sump to the plenum by a first-sump line; coupling the second sump to the plenum by a second-sump line; and blocking fluid communication into the plenum from one of the first sump or the second sump by coupling a configuration plate to the plenum. - View Dependent Claims (2)
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3. A gas turbine engine assembly comprising:
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an engine core extending around a central axis; and a gearbox coupled to the engine core, the gearbox including a lubrication system having a pump adapted to pressurize oil, a first sump located within a housing and configured to collect oil moved into the first sump by way of gravitational force when the housing is arranged in a first orientation, a second sump located within the housing and configured to collect oil moved into the second sump by way of gravitational force when the housing is arranged in a second orientation, and a manifold fluidly coupled to the pump by a pump line, to the first sump by a first-sump line, and to the second sump by a second-sump line, the manifold including a configuration plate configured to fluidly couple the pump line to one of the first-sump line or the second-sump line; wherein the engine core is configured to discharge pressurized gasses aftward along the central axis when the housing is arranged in each of the first and second orientations. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
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12. An aircraft comprising:
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a fuselage; a first gas turbine engine assembly coupled to a first side of the fuselage; and a second gas turbine engine assembly coupled to a second side of the fuselage opposite the first side, wherein the first and second gas turbine engine assemblies each include a gearbox having a lubrication system, the lubrication system includes a pump, a first sump arranged within a housing and configured to collect oil moved by way of gravitational force when the housing is in a first orientation, a second sump arranged within the housing and configured to collect oil moved by way of gravitational force when the housing is in a second orientation, and a manifold fluidly coupled to the pump by a pump line, the manifold being coupled to the first sump by a first-sump line, and the manifold further being coupled to the second sump by a second-sump line, and the manifold includes a configuration plate configured to fluidly couple the pump line with one of the first-sump line or the second-sump line. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification