Accessory gearbox with tower shaft removal capability
AssigneeUnited Technologies Corporation
InventorsHung Duong, Gabriel L. Suciu, Christopher M. Dye
Life of this patent
Estimating the term…
Abstract
An accessory system for a gas turbine engine includes an accessory gearbox which defines an accessory gearbox axis and includes first and second sides. A first geartrain includes one or more shafts rotatable about axes perpendicular to the first side of the accessory gearbox and a second geartrain includes one or more shafts rotatable about axes perpendicular to the second side of the accessory gearbox. A driven gear set defines an input axis and drives first geartrain and the second geartrain about corresponding first and second drive axes parallel to the input axis.
Claims14
An accessory system for a gas turbine engine comprising:
- an accessory gearbox which defines an accessory gearbox axis, the accessory gearbox including a first side and a second side;
- a first geartrain within the accessory gearbox including one or more shafts rotatable about axes perpendicular to the first side of the accessory gearbox;
- a second geartrain within the accessory gearbox including one or more shafts rotatable about axes perpendicular to the second side of the accessory gearbox;
- a driven gear set defining an input axis;
- a first drive gear set driven by the driven gear set about a first drive axis for driving the first geartrain;
- and
- a second drive gear set driven by the driven gear set about a second drive axis for driving the second geartrain,
- wherein the first drive axis and the second drive axis are substantially parallel to the input axis.
A gas turbine engine comprising:
- an engine case section defined about an engine axis of rotation;
- an accessory gearbox which defines an accessory gearbox axis parallel to the engine axis of rotation, the accessory gearbox mounted to the engine case section and includes first and second sides;
- a first geartrain within the accessory gearbox including one or more shafts aligned within a first plane transverse to the first side of the accessory gearbox;
- a second geartrain within the accessory gearbox including one or more shafts aligned within a second plane transverse to the second side of the accessory gearbox;
- a driven gear set defining an input axis;
- a first drive gear set driven by the driven gear set about a first drive axis for driving the first geartrain, the first drive gear set including a first bevel gear defining a first inclusive angle between the first drive axis and the first plane;
- and
- a second drive gear set driven by the driven gear set about a second drive axis for driving the second geartrain, the second drive gear set including second bevel gear defining a second inclusive angle between the second drive axis and the second plane.
Dependencies are inferred from the claim text.