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US 2022/0018288 A1Published application
Air starter with offset interface
AssigneeUnison Industries, LLC
InventorsSharad Pundlik Patil, Subrata Nayak, David Allan Dranschak, Shiloh Montegomery Meyers, Bajarang Agrawal, Jasraj Asdev, Ravindra Shankar Ganiger
Life of this patent
Estimating the term…
Abstract
An air starter for an engine, such as a turbine engine, that includes a turbine for rotatably extracting mechanical power from a flow of fluid. The turbine includes a drive shaft that can be coupled to an output shaft to provide a rotational output. The interface between the drive shaft and the output shaft can be offset.
Claims20
An air starter comprising:
- a housing defining an interior having a primary inlet and a primary outlet to define a primary air flow path from the primary inlet to the primary outlet;
- a turbine located in the interior and including a rotor, with a plurality of circumferentially spaced blades, and a drive shaft extending from the rotor;
- a gear box located in the interior and including a gear train and an output shaft coupled to the gear train;
- a spline connection, located upstream of the rotor or between the rotor and the gear train, and comprising a first spline interface provided on the drive shaft and a second spline interface, enmeshed with the first spline interface, provided on the output shaft;
- and
- at least one pilot guide, located between the rotor and the gear train, and comprising a first pilot element provided on the drive shaft and a second pilot element provided on the output shaft, wherein the first pilot element axially overlaps, at least in part, the second pilot element.
3 more elements
An air starter comprising:
- a housing defining an interior having a primary inlet and a primary outlet to define a primary air flow path from the primary inlet to the primary outlet;
- a gear box located in the interior and including a gear train and a sun gear shaft wherein the gear train is rotatably coupled the sun gear shaft;
- a turbine located in the interior and including a rotor, with a plurality of circumferentially spaced blades, and a drive shaft extending from the rotor wherein the drive shaft includes at least one sleeve receiving at least a portion of the sun gear shaft;
- a spline connection, located upstream of the rotor or between the rotor and the gear train, and comprising a first spline interface provided on the drive shaft and a second spline interface, enmeshed with the first spline interface, provided on the sun gear shaft;
- and
- at least one pilot guide, located between the rotor and the gear train, axially spaced from the spline connection, and comprising a first pilot element provided on the drive shaft and a second pilot element provided on the sun gear shaft, wherein the first pilot element overlaps at least a portion of the second pilot element.
3 more elements
Dependencies are inferred from the claim text.