Patents by Inventor Robert G. Glenn

Robert G. Glenn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4292810
    Abstract: A combustion chamber for a gas turbine engine having a step-liner configuration and providing a double wall defining an annular confined cooling air flow passage along the outer surface of the chamber. The outer wall of the double-wall configuration is provided by a concentric cylindrical baffle member supported in radially spaced relation from the combustion chamber wall by a plurality of leaf spring members providing a biasing force between the combustion chamber wall and the baffle member so that relative thermal growth between the combustion chamber wall and the baffle can be accommodated by deflection of the support springs or by axial sliding between the springs and the chamber wall.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: October 6, 1981
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert G. Glenn
  • Patent number: 4262487
    Abstract: This invention describes a double wall step-liner construction for a combustion chamber of a combustion turbine. The chamber is a series of concentric cylindrical segments stacked in overlapping arrangement such that the leading edge of each outer segment and the terminal edge of each inner segment are in general axial alignment so as to form a continuous double wall throughout the axial length of the step-liner configuration. Each cylindrical segment is attached at its inlet end and at its outlet end to the adjacent cylindrical segment by an annular transistion member formed of a wire mesh secured to each respective cylindrical segment with high temperature brazing. The relative thermal expansion between the inner and outer cylindrical segments (both axially and radially) is accommodated by deflection and distortion of the wire mesh transition members which also permits cooling air to enter between the overlapping segments and to be discharged therefrom into the combustion chamber with minimum interference.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: April 21, 1981
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert G. Glenn
  • Patent number: 4245954
    Abstract: A support system for supporting the stationary ceramic vanes and ceramic outer shrouds which define the motive fluid gas path in a gas turbine engine is shown. Each individual segment of the ceramic component whether a vane or shroud segment has an integral radially outwardly projecting stem portion. The stem is enclosed in a split collet member of a high-temperature alloy material having a cavity configured to interlock with the stem portion. The generally cylindrical external surface of the collet engages a mating internal cylindrical surface of an aperture through a supporting arcuate ring segment with mating camming surfaces on the two facing cylindrical surfaces such that radially outward movement of the collet relative to the ring causes the internal cavity of the collet to be reduced in diameter to tightly engage the ceramic stem disposed therein.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: January 20, 1981
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert G. Glenn
  • Patent number: 4142836
    Abstract: A turbine blade comprised of at least a pair of abutting blade parts with each part having a root coupled to an attachment piece, the latter adapted to be coupled to a turbine rotor. The blade parts can be curved and each blade part may have a hollow space in the region where it abuts the other blade part to reduce the weight of the blade. The blade parts may be spigoted or mated with tongue and groove structure to reduce fluid leakage through the junction between the blade parts.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: March 6, 1979
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Robert G. Glenn
  • Patent number: 4135362
    Abstract: A variable area turbine nozzle vane is supported from stationary housing structure and disposed in a confined fluid flow path between the gas generator and the power turbine of a split shaft gas turbine engine. The radially innermost structure defining the flow path for the working fluid is supported by a strut passing through, and also supporting, a hollow variable vane so that no external support struts are present in the flow path of the working fluid.
    Type: Grant
    Filed: November 3, 1977
    Date of Patent: January 23, 1979
    Assignee: Westinghouse Electric Corp.
    Inventor: Robert G. Glenn
  • Patent number: 4094615
    Abstract: Improved attachment structure for connecting ceramic blades to the rotor disk of a gas turbine rotor. The structure includes a plurality of metallic attachment pieces having roots inserted into respective grooves in the outer periphery of the rotor disk. Each attachment piece has an outer peripheral groove for receiving the root of a corresponding turbine blade formed of ceramic material. Specific embodiments of an attachment piece and a blade are disclosed, the blade having a base which engages the outer peripheral face of the corresponding attachment piece. The blade base and the corresponding attachment piece have aligned, spaced grooves at the opposed ends thereof for receiving ceramic plates which cover the adjacent parts of the attachment piece. Certain ends of the ceramic plates define recesses for receiving metallic plates which extend radially of the rotor disk and transmit torque from the blade to the attachment piece and thereby to the rotor disk.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: June 13, 1978
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Robert G. Glenn
  • Patent number: 4093399
    Abstract: A turbine rotor having a number of metallic attachment pieces for coupling a plurality of ceramic blades to a metallic rotor disk. The blades have roots which are received within grooves formed in the attachment pieces. Each attachment piece has passage means therethrough cooperating with passages in the rotor disk for receiving a coolant for cooling the attachment pieces without causing the coolant to contact the ceramic blades. The attachment pieces keep the rotor disk isolated from the hot gases which contact the ceramic blades.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: June 6, 1978
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Robert G. Glenn
  • Patent number: 4084922
    Abstract: An improved rotor for a gas turbine engine wherein the rotor has a plurality of ceramic turbine blades coupled by attachment pieces of high-temperature metal to a rotor disk. Each attachment piece has a root received in a corresponding groove in the outer periphery of the rotor disk. Also, each attachment piece is made to couple a pair of turbine blades to the rotor disk, the attachment piece having a pair of axially spaced, radially extending walls, each wall having a hole therethrough and the holes of the walls being aligned with each other. The roots of the two blades for each attachment piece are positioned between its spaced wall and the roots have cooperating projecting parts which engage each other and form a recess through which a pin extends when the ends of the pin are in the holes of the end walls. The roots of the blades of adjacent attachment pieces abut each other to keep the blades from moving laterally relative to respective attachment pieces.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: April 18, 1978
    Assignee: Electric Power Research Institute, Inc.
    Inventor: Robert G. Glenn
  • Patent number: 4035101
    Abstract: A unison ring for adjusting the nozzle vanes in a split shaft gas turbine is mounted via a secondary ring attached to and encircling the casing. The secondary ring is mounted so as to accommodate dimensional variations in the housing due to temperature changes without altering the freely movable mounting engagement of the unison ring. The unison ring can thus be easily adjusted regardless of the variations in radial dimension between the housing and the unison ring.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: July 12, 1977
    Assignee: Westinghouse Electric Corporation
    Inventor: Robert G. Glenn
  • Patent number: 3941500
    Abstract: A simplified interstage seal assembly for a turbomachine utilizing an abradable semicircular seal slidably held radially inwardly of a stator shroud by a pair of semicircular seal holders. The seal holders are retained between radially depending flanges of shroud segments, with each holder having a key portion projecting through radial slots in the flanges for guided radial expansion or contraction. The holders, after insertion of the keys in the slots, are spatially separated a predetermined distance and maintained in the separated and engaged position by engagement of a seal ring which is supported in the seal holders, in a track and channel arrangement, with a portion of the seal ring disposed in the space between the opposed seal holders to prevent axial displacement of the seal holders and thereby retain the key portions thereof within the slots of the flange.
    Type: Grant
    Filed: March 27, 1975
    Date of Patent: March 2, 1976
    Assignee: Westinghouse Electric Corporation
    Inventor: Robert G. Glenn