Patents by Inventor William Thomas Parry
William Thomas Parry 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: 9464537Abstract: Solutions for clutching turbine wheels are disclosed. In one embodiment, an apparatus includes: a turbine rotor shaft; a plurality of turbine wheels affixed to the turbine rotor shaft; an independent turbine wheel engagably attached to the turbine rotor shaft; and a clutch operably connected to the turbine rotor shaft, the clutch configured to couple and decouple the independent turbine wheel from the turbine rotor shaft.Type: GrantFiled: January 22, 2014Date of Patent: October 11, 2016Assignee: General Electric CompanyInventors: William Thomas Parry, Nestor Hernandez Sanchez, Michael Alan Davi
-
Publication number: 20140133966Abstract: Solutions for clutching turbine wheels are disclosed. In one embodiment, an apparatus includes: a turbine rotor shaft; a plurality of turbine wheels affixed to the turbine rotor shaft; an independent turbine wheel engagably attached to the turbine rotor shaft; and a clutch operably connected to the turbine rotor shaft, the clutch configured to couple and decouple the independent turbine wheel from the turbine rotor shaft.Type: ApplicationFiled: January 22, 2014Publication date: May 15, 2014Applicant: General Electric CompanyInventors: William Thomas Parry, Nestor Hernandez Sanchez, Michael Alan Davi
-
Patent number: 8667772Abstract: Solutions for clutching turbine wheels are disclosed. In one embodiment, an apparatus includes: a turbine rotor shaft; a plurality of turbine wheels affixed to the turbine rotor shaft; an independent turbine wheel engagably attached to the turbine rotor shaft; and a clutch operably connected to the turbine rotor shaft, the clutch configured to couple and decouple the independent turbine wheel from the turbine rotor shaft.Type: GrantFiled: January 4, 2010Date of Patent: March 11, 2014Assignee: General Electric CompanyInventors: William Thomas Parry, Nestor Hernandez Sanchez, Michael Alan Davi
-
Patent number: 8419349Abstract: A steam turbine and a start-up system for a steam turbine are disclosed comprising: a plurality of stages, a steam path through the plurality of stages, an inlet port for introducing steam to a first stage, an exhaust port at a last stage for allowing exhaust to exit the steam turbine, an admission port for allowing steam to enter the steam path at a location downstream from the inlet port, and a ventilator port for allowing steam to exit the steam path, the ventilator port located upstream of the admission port to create a reverse flow of steam towards the ventilator port from the admission port.Type: GrantFiled: August 12, 2009Date of Patent: April 16, 2013Assignee: General Electric CompanyInventors: Flor del Carmen Rivas Cortes, William Thomas Parry
-
Patent number: 8317458Abstract: A steam turbine includes a turbine rotor, a generator end having a generator end first stage with a first reaction, and a turbine end having a turbine end first stage with a second reaction not equal to the first reaction. The steam turbine includes a tub section disposed between the generator end and the turbine end, the turbine rotor and the tub section defining an annulus therebetween. A difference between the first reaction and second reaction is capable of urging a steam flow through the annulus for reducing a temperature of the turbine rotor. A method of cooling the turbine rotor is also disclosed.Type: GrantFiled: February 28, 2008Date of Patent: November 27, 2012Assignee: General Electric CompanyInventors: Flor Del Carmen Rivas, William Thomas Parry, Jon-Paul James Cronier
-
Patent number: 8186935Abstract: A steam turbine includes a casing including a steam inlet and an exhaust, the casing enclosing operative structure of the steam turbine; a valve controlling introduction of a steam flow at a location of the steam turbine to impact an enthalpic condition of steam exiting the exhaust; and a controller controlling operation of the valve to attain a desired enthalpic condition of steam exiting the exhaust. Controlling operation of the valve allows for attainment of a desired enthalpic condition of the steam exiting the exhaust for use in another industrial process without having to modify the steam turbine structure.Type: GrantFiled: January 12, 2009Date of Patent: May 29, 2012Assignee: General Electric CompanyInventors: Flor Del Carmen Rivas Cortés, Nestor Hernandez, Kurt Neal Laurer, William Thomas Parry
-
Publication number: 20110038711Abstract: A steam turbine and a start-up system for a steam turbine are disclosed comprising: a plurality of stages, a steam path through the plurality of stages, an inlet port for introducing steam to a first stage, an exhaust port at a last stage for allowing exhaust to exit the steam turbine, an admission port for allowing steam to enter the steam path at a location downstream from the inlet port, and a ventilator port for allowing steam to exit the steam path, the ventilator port located upstream of the admission port to create a reverse flow of steam towards the ventilator port from the admission port.Type: ApplicationFiled: August 12, 2009Publication date: February 17, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Flor del Carmen Rivas Cortes, William Thomas Parry
-
Publication number: 20100178156Abstract: A steam turbine includes a casing including a steam inlet and an exhaust, the casing enclosing operative structure of the steam turbine; a valve controlling introduction of a steam flow at a location of the steam turbine to impact an enthalpic condition of steam exiting the exhaust; and a controller controlling operation of the valve to attain a desired enthalpic condition of steam exiting the exhaust. Controlling operation of the valve allows for attainment of a desired enthalpic condition of the steam exiting the exhaust for use in another industrial process without having to modify the steam turbine structure.Type: ApplicationFiled: January 12, 2009Publication date: July 15, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Flor Del Carmen Rivas Cortes, Nestor Hernandez, Kurt Neal Laurer, William Thomas Parry
-
Publication number: 20100038917Abstract: A power generation system including: at least one elevated steam turbine receiving input steam at an elevated pressure and exhausting steam as low pressure steam; a low pressure steam turbine receiving low pressure steam exhausted from the elevated steam turbine, and a drive shaft for the low pressure steam turbine connected to a clutch which is reasonably coupled to a power generator, wherein the clutch has a first position in which power from the low pressure steam turbine is applied to the power generator and a second position in which power from the low pressure steam turbine is not applied to the generator.Type: ApplicationFiled: August 15, 2008Publication date: February 18, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Gregory L. DiAntonio, William Thomas Parry
-
Publication number: 20090217673Abstract: Disclosed is a steam turbine including a turbine rotor, a generator end having a generator end first stage with a first reaction, and a turbine end having a turbine end first stage with a second reaction not equal to the first reaction. The steam turbine includes a tub section disposed between the generator end and the turbine end, the turbine rotor and the tub section defining an annulus therebetween. A difference between the first reaction and second reaction is capable of urging a steam flow through the annulus for reducing a temperature of the turbine rotor. A method of cooling the turbine rotor is also disclosed.Type: ApplicationFiled: February 28, 2008Publication date: September 3, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Flor Del Carmen Rivas, William Thomas Parry, Jon-Paul James Cronier
-
Patent number: 6896482Abstract: A turbine includes, in an exemplary embodiment, an outer housing, a turbine shaft rotatably supported in the outer housing, and a plurality of turbine stages located along the turbine shaft. Each turbine stage includes a diaphragm attached to the casing, a rotor having a plurality of buckets and a bucket cover fixedly attached to the turbine shaft, and a packing ring mounted in a first circumferentially extending groove in said diaphragm. The packing ring includes a seal shroud and a sealing means and is positioned adjacent the turbine shaft. The seal shroud is fabricated from a first material having a first coefficient of expansion, and the is diaphragm fabricated from a second material having a second coefficient of expansion. The first and second materials are selected so that at a first temperature a gap between the turbine shaft and the diaphragm is larger than at a second higher temperature.Type: GrantFiled: September 3, 2003Date of Patent: May 24, 2005Assignee: General Electric CompanyInventor: William Thomas Parry
-
Patent number: 6779972Abstract: The root region of a flowpath through a turbine includes a sealing configuration for minimizing leakage flow and secondary aerodynamic losses. Entrance and exit root radial seals are provided between upstream and downstream nozzles at locations radially inwardly of the root region of the flowpath to minimize radial leakage flow. To minimize intrusion flow into the flowpath from rotor pumping action and consequent aerodynamic losses, an exit flow guide on each bucket turns the exiting radial flow in a predominantly axial direction. Additionally, the upstream bucket root radius and nozzle root radius are faired or tapered to minimize the possibility of a protuberance projecting into the flowpath at steady state operation. An additional entrance root axial fin is provided on the buckets to reduce the flow coefficient and afford further reduction in leakage flow.Type: GrantFiled: October 31, 2002Date of Patent: August 24, 2004Assignee: General Electric CompanyInventors: Alison Carol Farrell, Douglas Carl Hofer, Norman Douglas Lathrop, Raymond Kenneth Overbaugh, Jr., William Thomas Parry, Kenneth James Robertson
-
Publication number: 20040086379Abstract: The root region of a flowpath through a turbine includes a sealing configuration for minimizing leakage flow and secondary aerodynamic losses. Entrance and exit root radial seals are provided between upstream and downstream nozzles at locations radially inwardly of the root region of the flowpath to minimize radial leakage flow. To minimize intrusion flow into the flowpath from rotor pumping action and consequent aerodynamic losses, an exit flow guide on each bucket turns the exiting radial flow in a predominantly axial direction. Additionally, the upstream bucket root radius and nozzle root radius are faired or tapered to minimize the possibility of a protuberance projecting into the flowpath at steady state operation. An additional entrance root axial fin is provided on the buckets to reduce the flow coefficient and afford further reduction in leakage flow.Type: ApplicationFiled: October 31, 2002Publication date: May 6, 2004Inventors: Alison Carol Farrell, Douglas Carl Hofer, Norman Douglas Lathrop, Raymond Kenneth Overbaugh, William Thomas Parry, Kenneth James Robertson