Method and apparatus for determining gas turbine dampening cone inner diameter
AssigneeSiemens Energy, Inc.
InventorPraveen J. Matlapudi
Life of this patent
Estimating the term…
Abstract
Gas turbine engine generally ring-shaped dampening cone inner diameters, including those having spherical or other convex inner diameter surface profiles, are determined with a fixture including a displacement indicator having an axis of displacement in alignment with a locating pin. The dampening cone inner diameter surface is placed in contact with the locating pin on one side and a displacement point on the other side, so that the dampening cone inner diameter surface circumscribes a contact surface formed on the locating pin and the displacement point. The indicator displacement is correlated with the dampening cone inner diameter.
Claims18
A method for determining internal diameter of a ring-shaped, dampening cone for gas turbine engine, comprising:
- providing a measurement fixture, which includes:
- a base defining a self-standing, elevated, planar reference surface;
- a single locating pin projecting upwardly from an elevated upper end of the defined planar reference surface, the locating pin defining a single contact surface;
- a displacement indicator, coupled to base, having a displaceable point with a displacement range of motion below the contact surface of the locating pin, along a displacement axis that is parallel to the planar reference surface and aligned with the contact surface;
- resting an axial end surface of a ring-shaped dampening cone of a gas turbine engine upon the elevated, planar reference surface of the base, supported in an elevated position by hanging an inner radial surface of the dampening cone in abutting engagement with only the single locating pin's single contact surface, while an opposite side inner radial surface thereof abuts against and circumscribes the displacement indicator's displaceable point;
- and
- determining the dampening cone inner diameter by swinging, in pendulum-like fashion, the dampening cone relative to the locating pin single contact surface, the dampening cone inner diameter constituting distance from the locating pin's single contact surface to the displacement indicator maximum-extension displacement reading.
An apparatus for determining an inner diameter of a ring-shaped, dampening cone for gas turbine engine, comprising:
- a base defining a self-standing, elevated, planar reference surface;
- a single locating pin projecting upwardly from an elevated upper end of the defined planar reference surface, the locating pin defining a single contact surface;
- a displacement indicator, coupled to base, having a displaceable point with a displacement range of motion below the contact surface of the locating pin, along a displacement axis that is parallel to the planar reference surface and aligned with the contact surface;
- the apparatus determining an inner diameter of a ring-shaped, dampening cone for gas turbine engine when an axial end surface of the dampening cone rests upon the elevated, planar reference surface of the base, supported in an elevated position by hanging an inner radial surface of the dampening cone in abutting engagement with only the single locating pin's single contact surface, while an opposite side inner radial surface thereof abuts against and circumscribes the displacement indicator's displaceable point, the dampening cone inner diameter constituting distance from the locating pin's single contact surface to the displacement indicator maximum-extension displacement reading, as the dampening cone swings on the single contact surface, in pendulum-like fashion.
Dependencies are inferred from the claim text.