Kenneth E Robbins

US Patent:

46681612, May 26, 1987

Filed:

May 31, 1985

Appl. No.:

6/739958

Inventors:

Edward H. Miller - Rexford NY
Kenneth E. Robbins - Burnt Hills NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 506
F01D 508

US Classification:

415112

Abstract:

Ventilation apparatus for creating a fluid flow through the interhub spacing between the hubs of adjacent turbine wheels which are not integral with the rotor of the turbine includes an outward radial extension of the hub of the downstream wheel and/or a roundoff of the hub of the upstream wheel and/or a displacement of the axis of the hub of the upstream wheel from the axis of the hub of the downstream wheel for increasing the static pressure over a first predetermined arcuate portion of the interhub spacing in an ancillary fluid flow between the hubs and a seal circumferentially surrounding the hubs. Also, either alone or in combination with the static pressure increasing devices, static pressure reduction apparatus includes an outward radial extension of the hub of the upstream wheel and/or a roundoff of the hub of the downstream wheel and/or a displacement of the axis of the hub of the upstream wheel from the axis of the hub of the downstream wheel for decreasing the static pressure over a second predetermined arcuate portion of the interhub spacing in the ancillary flow. Preferably, the first predetermined arcuate portion is disposed diametrically opposite to the second predetermined arcuate portion.

US Patent:

62602691, Jul 17, 2001

Filed:

Dec 7, 1999

Appl. No.:

9/454720

Inventors:

Norman Arnold Turnquist - Carlisle NY
Osman Saim Dinc - Troy NY
George Ernest Reluzco - Schenectady NY
Daniel Richard Cornell - Clifton Park NY
Robert Harold Cromer - Johnstown NY
Kenneth Elmer Robbins - Burnt Hills NY
Christopher Edward Wolfe - Niskayuna NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

B23P 1500

US Classification:

298891

Abstract:

A method for overhauling a steam turbine to increase its power without increasing its overall length. Existing seal assemblies containing seals other than brush seals are replaced with longitudinally-shorter replacement seal assemblies having only brush seals. An existing turbine section, such as a high-pressure turbine section, is replaced with a longitudinally-longer replacement turbine section having additional stages (i. e. , additional rows of rotating buckets or blades).

US Patent:

60536993, Apr 25, 2000

Filed:

Jul 27, 1998

Appl. No.:

9/122960

Inventors:

Norman Arnold Turnquist - Cobleskill NY
Osman Saim Dinc - Troy NY
George Ernest Reluzco - Schenectady NY
Daniel Richard Cornell - Clifton Park NY
Robert Harold Cromer - Johnstown NY
Kenneth Elmer Robbins - Burnt Hills NY
Christopher Edward Wolfe - Niskayuna NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

F01D 1100

US Classification:

415231

Abstract:

A steam turbine having a shaft and a first (e. g. , high-pressure) turbine section. A first embodiment also includes a first bearing longitudinally spaced apart from the first turbine section and further includes a first brush-seal assembly, having bristles, longitudinally positioned between the first turbine section and the first bearing and radially positioned proximate the shaft. The steam turbine is devoid of any backup seal to the bristles. In a second embodiment, a second brush seal assembly is positioned between the first and second (e. g. , intermediate-pressure) turbine sections which lack any intervening bearing.