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US 2017/0370245 A1Published application
Gas turbine engine frame alignment tool
AssigneeROLLS-ROYCE plc
InventorDaniel J. Hassan, III
Life of this patent
Estimating the term…
Abstract
Devices, systems, and methods for alignment of gas turbine engine components including frame components.
Claims20
A gas turbine engine comprising
- an engine core that extends along a rotating axis, the engine core including a compressor, a combustor, and a turbine,
- an engine support structure including a forward frame and an aft frame and defining a core cavity for receiving the engine core, each of the forward frame and the aft frame includes a mount for attachment of the engine frame to a base feature, the mounts of the forward frame and the aft frame are arranged in spaced apart relation to each other along the direction of the rotating axis, and
- an alignment tool for measuring an amount of angular misalignment between the forward frame and the aft frame, the alignment tool including a projection tool attached to the mount of one of the forward frame and the aft frame and a display tool attached to the mount of the other of the forward frame and the aft frame, the projection tool including a body and a position projector mounted to the body and configured to project a marker onto the display tool to indicate a relative angular position of the projection tool.
A gas turbine engine comprising
- an engine body including an engine core that extends along a rotating axis and an engine support structure, the engine core including a compressor, a combustor, and a turbine, the engine support structure including a forward frame and an aft frame, each of the forward frame and aft frame including a mount for attachment of the engine support structure to a base feature and the mounts of the forward frame and the aft frame are arranged in spaced apart relation to each other along the direction of the rotating axis,
- a projection tool attached to the mount of one of the forward frame and the aft frame for projecting a marker to indicate position, and
- a display tool including a base attached to the mount of the other of the forward frame and the aft frame, a riser that extends from the base, and an adjustable slide having a marker window for receiving the marker of the projection tool, the adjustable slide being slidably received by the riser for movement between a first position and a second position to determine the angular alignment between the forward and the aft frame.
An alignment system for measuring an amount of angular misalignment between a forward frame and an aft frame of a gas turbine engine, the alignment system comprising
- a projection tool including a body arranged between opposite ends and having at least one mounting point, the projection tool including a position projector mounted to the body and configured to project a marker to indicate a relative angular position of the projection tool,
- a display tool including a base, a frame that coupled to the base, and an adjustable slide received by the frame for sliding movement between a first position and a second position, the display tool including a marker window disposed on the adjustable slide for receiving projection of the marker and an indicator having an indicator window corresponding to an acceptable range of misalignment and a position indicator demarking the position of the adjustable slide relative to the measurement window, and
- an adjustment device including a position wheel and an adjustment rod received by the position wheel and coupled to the display tool to move the adjustable slide between the first and second positions,
- wherein upon alignment of the marker of the projection tool and the marker window of the display tool and alignment of the position indicator with the indicator window, the relative positions of the projection tool and the display tool are within the acceptable range of misalignment.
1 more element
An alignment tool for measuring an amount of angular misalignment between an forward frame and an aft frame of a gas turbine engine along a rotational axis, each of the forward frame and an aft frame having a mount, the alignment tool comprising
- a display tool attached to the mount of the one of the forward frame and the aft frame and arranged to receive a projection of a marker for determining relative position;
- and
- a projection tool configured for attachment to the mount of the other of the forward frame and the aft frame of the gas turbine engine, the projection tool including a body and a position projector mounted to the body and configured to project the marker to indicate a relative angular position of the projection tool, the body including a number of mounting points adapted for connection to the mount of the other of the forward frame and the aft frame, the mounting points each having a mount surface, and a projector surface arranged to receive the projector, wherein the projector surface is arranged with a predetermined axial offset from each of the mounting surfaces.
Dependencies are inferred from the claim text.