US 9,039,490 B2Granted

Method of shaping an edge of an aerofoil

AssigneeROLLS-ROYCE plc

InventorsJohn R. Kelly, Adam S. Ramsay, Satyaswaroop Nanda, Fiona M. Halliday

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Abstract

An apparatus for shaping an edge of an aerofoil, the apparatus having first and second brushes and each brush having a plurality of bristles. A first motor rotates the first brush about a first axis and a second motor rotates the second brush about a second axis. The axes are arranged substantially parallel to the bristles of the respective brush. A support structure holds the first brush such that the first axis intersects a first surface of the edge of the aerofoil and holds the second brush such that the second axis intersects a second surface of the edge of the aerofoil. There are means to produce relative movement the first and second brushes and the aerofoil such that the first and second brushes move longitudinally along the edge of the aerofoil to shape the edge of the aerofoil.

Claims13

Dependent claims

A method of shaping an edge of an aerofoil, the method comprising:—

a) providing a first brush and a second brush, each brush comprising a plurality of bristles extending substantially parallel to each other,
b) rotating the first brush about a first axis and rotating the second brush about a second axis, the first axis being arranged substantially parallel to the bristles of the first brush and the second axis being arranged substantially parallel to the bristles of the second brush,
c) arranging the first axis to intersect a first surface of an edge of an aerofoil and arranging the second axis to intersect a second surface of the edge of the aerofoil,
d) moving the first brush such that the first brush contacts the first surface of the edge and moving the second brush such that the second brush contacts the second surface of the edge,
e) producing relative movement between the first brush and the second brush and the aerofoil such that the first brush and the second brush move longitudinally along the edge of the aerofoil to shape the edge of the aerofoil.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/479,881Filed 24 May 2012
Priority: GB 1109303.63 Jun 2011
Published: US 2012/0309274 A16 Dec 2012
Granted: 26 May 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F01D 5/005
Blades; Blade-carrying members ; Heating, heat-insulating, cooling or antivibration means on the blades or the members: repairing methods or devices
B24B 19/14
Single-purpose machines or devices for particular grinding operations not covered by any other main group: for grinding turbine blades, propeller…
F05D 2230/80
Manufacture: repairing, retrofitting or upgrading methods
Y10T 29/49318
Impeller making: repairing or disassembling

Family

US 2012/0309274 A1Pre-grant publication · published 6 Dec 2012
US 9,039,490 B2This patent

From the US filing history. Foreign family members aren’t listed.

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