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US 7,726,113 B2Granted
Gas turbine engine assembly and methods of assembling same
AssigneeGeneral Electric Company
InventorsRobert Joseph Orlando, Thomas Ory Moniz
Life of this patent
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Abstract
A method for assembling a gas turbine engine includes coupling a low-pressure turbine to a core turbine engine, and coupling a counter-rotating fan assembly including a first fan assembly and a second fan assembly to the low-pressure turbine such that the first fan assembly rotates in a first direction and the second fan assembly rotates in an opposite second direction.
Claims11
A method for assembling a gas turbine engine, said method comprising:
- providing a low-pressure turbine that rotates in a single direction;
- and
- coupling a counter-rotating fan assembly including a first fan assembly and a second fan assembly to the low-pressure turbine such that the first fan assembly is rotatable in a first direction and the second fan assembly is rotatable in a second direction that is opposite the first direction, wherein a single drive shaft is coupled between the low-pressure turbine and the first fan assembly, and wherein a gearbox is coupled between the single drive shaft and the second fan assembly such that the first fan assembly is rotatable in the first direction at a first rotational speed and the second fan assembly is rotatable in the second direction at a second rotational speed that is different than the first rotational speed.
A turbine engine assembly comprising:
- a low-pressure turbine that rotates in a single direction;
- a counter-rotating fan assembly coupled to said low-pressure turbine, said counter-rotating fan assembly comprising a first fan assembly configured to rotate in a first direction and a second fan assembly configured to rotate in a second direction that is opposite the first direction;
- a single drive shaft coupled between said low-pressure turbine and said first fan assembly;
- and
- a gearbox coupled between said shaft and said second fan assembly such that said first fan assembly is rotatable in the first direction at a first rotational speed and said second fan assembly is rotatable in the second direction at a second rotational speed that is different than the first rotational speed.
2 more elements
Dependencies are inferred from the claim text.