General Electric Company

Karl Rudolph Anderson, Iii

John Francis Nolan

Gerald Richard Crawmer

Robert E Seeley

Edward Kenneth Ellis

Louis Patrick Earvolino

Joseph John Pepe

Robert Joseph Christoffel

Joseph Louis Van Ullen

Brock Matthew Lape

Andrew John Tomko

Yannick Lampron

Alain E Limoges

A cart and detachable hangers system for transporting copper coils that may include: 1) a cart with a substantially rectangular structure that includes at least two opposing side rails and at least two opposing end rails; 2) a plurality of pockets disposed along a top surface of each of the two opposing side rails; and 3) a plurality of hangers, each of the hangers including two projections that are sized such that each may detachably engage one of the pockets. The hanger and the cart are sized such that the distance between the projections correspond approximately to the distance between the pocket on one upper side rail and the opposing pocket on the other upper side rail.

Apparatus for transporting generator coils

A pair of stands are spaced one from the other to support opposite ends of an upper shell and diaphragm halves of a turbine at locations along the upper shell axially beyond the diaphragm halves. Carts mounted on wheels each have a hydraulically actuated lift and a platform mounting support assemblies engagable with an upper diaphragm half at the midline. By engaging a diaphragm half from below the upper shell, securing the support assemblies to the upper diaphragm half and releasing the upper diaphragm half from the upper shell by removing bolts and keys to transfer the weight of the diaphragm half to the cart, the diaphragm half may be lowered from the upper shell and moved away. The diaphragm halves may then be refurbished and the process reversed to reinstall the diaphragm halves into the upper shell. During the process, the upper shell remains in its normal orientation, similarly as in the turbine.

Apparatus and methods for removing and installing an upper diaphragm half relative to an upper shell of a turbine

A method for repairing the rim of a steam turbine rotor, and a weld material for repairing such rotors. The method generally includes the steps of removing a damaged rim and its associated dovetail region, so as to form a surface at the perimeter of the rim portion. A weld repair region is then formed on the surface, which is machined to reconstruct the rim portion and the dovetail region exclusively with the weld repair region. Thereafter, an appropriately configured blade is secured to the rim portion with the dovetail region. The method is particularly intended for the repair of a steel alloy rotor, such as a NiCrMoV, NiMoV and CrMoV alloy, while the weld repair is formed with a nickel-base superalloy whose mechanical and thermal properties are compatible with the repair method and the steel alloy over a broad temperature range.

Method of repairing a steam turbine rotor

A turbine rotor comprising a radially-inward portion of a steel alloy and a radially-outward rim portion circumscribing the radially-inward portion, the rim portion being formed by a weldment that includes a nickel-base superalloy region joining the rim portion to the inward portion of the turbine rotor, the nickel-base superalloy having a room temperature ultimate tensile strength of at least about 690 MPa.

Growing community of inventors

Naperville, IL, United States of America

Karl Rudolph Anderson, Iii