Patents by Inventor Iain R. Kellock
Iain R. Kellock 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).
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Patent number: 6082963Abstract: A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.Type: GrantFiled: February 12, 1999Date of Patent: July 4, 2000Assignee: General Electric Co.Inventors: Brendan F. Sexton, Hans M. Knuijt, Sacheverel Q. Eldrid, Albert Myers, Kyle E. Coneybeer, David Martin Johnson, Iain R. Kellock
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Patent number: 6079943Abstract: A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.Type: GrantFiled: April 19, 1999Date of Patent: June 27, 2000Assignee: General Electric Co.Inventors: Brendan F. Sexton, Hans M. Knuijt, Sacheverel Q. Eldrid, Albert Myers, Kyle E. Coneybeer, David Martin Johnson, Iain R. Kellock
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Patent number: 5913658Abstract: A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. An outer housing surrounds the inner shell sections and includes at least two outer shell sections overlying the inner shell sections. The inner shell sections are releasably connected to one another and the outer shell sections are releasably connected to one another. Upon removing an outer shell section, an access opening is provided through which an uppermost inner shell section is removed. Rollers are provided between the lower outer and inner shell sections so that the lower inner shell section is rotated into the access opening and can be removed through the access opening.Type: GrantFiled: May 16, 1997Date of Patent: June 22, 1999Assignee: General Electric Co.Inventors: Brendan F. Sexton, Hans M. Knuijt, Sacheverel Q. Eldrid, Albert Myers, Kyle E. Coneybeer, David Martin Johnson, Iain R. Kellock
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Patent number: 5906473Abstract: A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.Type: GrantFiled: November 20, 1997Date of Patent: May 25, 1999Assignee: General Electric Co.Inventors: Brendan F. Sexton, Hans M. Knuijt, Sacheverel Q. Eldrid, Albert Myers, Kyle E. Coneybeer, David Martin Johnson, Iain R. Kellock
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Patent number: 5779442Abstract: A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.Type: GrantFiled: August 2, 1995Date of Patent: July 14, 1998Assignee: General Electric CompanyInventors: Brendan F. Sexton, Hans M. Knuijt, Sacheverel Q. Eldrid, Albert Myers, Kyle E. Coneybeer, David Martin Johnson, Iain R. Kellock
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Patent number: 5685693Abstract: A turbine includes a plurality of inner shell sections mounting first and second stage nozzle and shroud portions. The inner shell sections are pinned to an outer containment shell formed of sections to preclude circumferential movement of the inner shell relative to the outer shell and enable thermal expansion and contraction of the inner shell relative to the outer shell. Positive bucket tip clearance control is afforded by passing a thermal medium about the inner shell in heat transfer relation with the shrouds about the first and second stage bucket tips, the thermal medium being provided from a source of heating/cooling fluid independent of the turbine. Access is provided to the rotor and turbine buckets by removing the outer and inner shell sections.Type: GrantFiled: March 31, 1995Date of Patent: November 11, 1997Assignee: General Electric Co.Inventors: Brendan F. Sexton, Hans M. Knuijt, Sacheverel Q. Eldrid, Albert Myers, Kyle E. Coneybeer, David Martin Johnson, Iain R. Kellock
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Patent number: 5636439Abstract: Nozzle segments in the form of singlets having radial outer and inner walls with a single vane therebetween are coated with a base coat of nickel, chromium, aluminum and yttrium and prevent oxidation of the base metal. A finish coat of yttrium-stabilized zirconia is applied for anti-oxidation and anti-corrosion purposes. The singlets are welded to one another adjacent the abutting margins of the outer and inner walls. Electron beam welding is used to fuse the material of the walls together to a depth which does not penetrate the coating on the wall surfaces of the segments forming the hot gas path components of the turbine.Type: GrantFiled: May 22, 1995Date of Patent: June 10, 1997Assignee: General Electric Co.Inventors: Francisco J. Cunha, Iain R. Kellock, George G. Gunn
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Patent number: 5154577Abstract: A three-piece seal assembly is disclosed for sealing cooling air leakage between circumferentially spaced-apart flowpath segments in gas turbine engines. First and second seals are disposed in oppositely facing slots on adjacent flowpath segments, and extend between adjacent flowpath segments to restrict cooling flow between the segments. A third seal member having first and second leg portions in abutting engagement with the first and second seals restricts leakage flow between the gap between the first and second seals.Type: GrantFiled: January 17, 1991Date of Patent: October 13, 1992Assignee: General Electric CompanyInventors: Iain R. Kellock, Andrew D. Kemp