Transverse mounted accessory gearbox
First Claim
1. An accessory gear box for a gas turbine engine having a drive shaft with a rotational axis and a tower shaft coupled to the drive shaft, the accessory gear box comprising:
- a first plurality of gears arranged within the accessory gear box, the first plurality of gears extending along a first axis substantially parallel to the rotational axis of the drive shaft;
a second plurality of gears arranged within the accessory gear box, the second plurality of gears extending along a second axis, the second axis offset from and substantially parallel to the first axis; and
a first shaft, with one of the first plurality of gears coupled to the first shaft, and a first one of the second plurality of gears coupled to a second shaft,wherein a second one of the second plurality of gears is coupled to the first shaft and includes a first engagement surface and a second engagement surface, the first engagement surface to engage the tower shaft and the second engagement surface is coupled to the first one of the second plurality of gears to drive the second shaft.
1 Assignment
0 Petitions
Accused Products
Abstract
An accessory gear box for a gas turbine engine having a drive shaft with a rotational axis and a tower shaft coupled to the drive shaft is provided. The accessory gear box includes a first plurality of gears arranged, which extend along a first axis substantially parallel to the rotational axis of the drive shaft. The accessory gear box includes a second plurality of gears, which extend along a second axis. The accessory gear box includes a first shaft, with one of the first plurality of gears coupled to the first shaft, and one of the second plurality of gears coupled to a second shaft. The one of the second plurality of gears coupled to the first shaft includes a first engagement surface and a second engagement surface, and the second engagement surface is coupled to another one of the second plurality of gears to drive the second shaft.
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Citations
20 Claims
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1. An accessory gear box for a gas turbine engine having a drive shaft with a rotational axis and a tower shaft coupled to the drive shaft, the accessory gear box comprising:
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a first plurality of gears arranged within the accessory gear box, the first plurality of gears extending along a first axis substantially parallel to the rotational axis of the drive shaft; a second plurality of gears arranged within the accessory gear box, the second plurality of gears extending along a second axis, the second axis offset from and substantially parallel to the first axis; and a first shaft, with one of the first plurality of gears coupled to the first shaft, and a first one of the second plurality of gears coupled to a second shaft, wherein a second one of the second plurality of gears is coupled to the first shaft and includes a first engagement surface and a second engagement surface, the first engagement surface to engage the tower shaft and the second engagement surface is coupled to the first one of the second plurality of gears to drive the second shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A gas turbine engine, comprising:
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a drive shaft having a rotational axis; a tower shaft having a first end coupled to the drive shaft, and a second end including a bevel gear, the tower shaft having a longitudinal axis transverse to the rotational axis of the drive shaft; an accessory gear box comprising; a first plurality of gears arranged within the accessory gear box, the first plurality of gears extending along a first axis substantially parallel to the rotational axis of the drive shaft and transverse to the longitudinal axis of the tower shaft; a second plurality of gears arranged within the accessory gear box, the second plurality of gears extending along a second axis, the second axis offset from and substantially parallel to the first axis and the rotational axis of the drive shaft; and a first shaft, with one of the first plurality of gears coupled to the first shaft, and a first one of the second plurality of gears coupled to a second shaft, wherein a second one of the second plurality of gears is coupled to the first shaft and includes a first engagement surface and a second engagement surface, and the first engagement surface is coupled to the bevel gear of the tower shaft. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A gas turbine engine, comprising:
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a drive shaft having a rotational axis; a tower shaft having a first end coupled to the drive shaft, and a second end including a bevel gear, the tower shaft having a longitudinal axis transverse to the rotational axis of the drive shaft; an accessory gear box comprising; a first plurality of gears arranged within the accessory gear box, the first plurality of gears each having a rotational axis, the rotational axis of each of the first plurality of gears substantially perpendicular to the rotational axis of the drive shaft and the longitudinal axis of the tower shaft; a second plurality of gears arranged within the accessory gear box, the second plurality of gears each having a rotational axis, the rotational axis of each of the second plurality of gears substantially perpendicular to the rotational axis of the drive shaft and the longitudinal axis of the tower shaft, and the rotational axis of each of the second plurality of gears substantially parallel to the rotational axis of each of the first plurality of gears; and a first shaft, with one of the first plurality of gears coupled to the first shaft, and a first one of the second plurality of gears coupled to a second shaft, wherein a second one of the second plurality of gears is coupled to the first shaft and includes a first engagement surface and a second engagement surface, the first engagement surface is coupled to the bevel gear of the tower shaft and the second engagement surface is coupled to the first one of the second plurality of gears to drive the second shaft. - View Dependent Claims (17, 18, 19, 20)
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Specification