Apparatus for driving an accessory gearbox in a gas turbine engine
First Claim
1. A mechanical drive system for an accessory gearbox of a gas turbine engine, which engine has a high-pressure drive shaft and a low-pressure drive shaft, the drive system comprising:
- a first tower shaft connected by a first gear arrangement to the high-pressure drive shaft; and
a second tower shaft connected by a second gear arrangement to the low-pressure drive shaft;
wherein the accessory gearbox is driven by the first tower shaft and the second tower shaft drive.
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Accused Products
Abstract
A mechanical drive system for an accessory gearbox of a gas turbine engine is provided. The engine has a high-pressure drive shaft and a low-pressure drive shaft. The mechanical drive system includes a first tower shaft, a second tower shaft, a first lay shaft, and a second lay shaft. The first tower shaft is driven by the high-pressure drive shaft. The second tower shaft is driven by the low-pressure drive shaft. The first lay shaft is driven by the first tower shaft, and is connected to the accessory gearbox. The second lay shaft is driven by the second tower shaft, and is connected to the accessory gearbox.
27 Citations
12 Claims
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1. A mechanical drive system for an accessory gearbox of a gas turbine engine, which engine has a high-pressure drive shaft and a low-pressure drive shaft, the drive system comprising:
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a first tower shaft connected by a first gear arrangement to the high-pressure drive shaft; and
a second tower shaft connected by a second gear arrangement to the low-pressure drive shaft;
wherein the accessory gearbox is driven by the first tower shaft and the second tower shaft drive. - View Dependent Claims (2, 3, 4, 6, 7, 8)
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5. A mechanical drive system for an accessory gearbox of a gas turbine engine, which engine has a high-pressure drive shaft and a low-pressure drive shaft, the drive system comprising:
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a first tower shaft driven by the high-pressure drive shaft; and
a second tower shaft driven by the low-pressure drive shaft;
wherein the accessory gearbox is driven by the first tower shaft and the second tower shaft.
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9. A gas turbine engine, comprising:
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a high-pressure drive shaft connected to a high-pressure compressor and a high-pressure turbine;
a low-pressure drive shaft connected to a low-pressure compressor and a low-pressure turbine;
wherein the high-pressure drive shaft and the low-pressure drive shaft rotate about an axially extending engine centerline;
an accessory gear box;
a first tower shaft driven by the high-pressure drive shaft; and
a second tower shaft driven by the low-pressure drive shaft;
wherein the accessory gearbox is driven by the first tower shaft and the second tower shaft. - View Dependent Claims (10, 11, 12)
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Specification