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| Number | Title | Issue Date |
| 8066475 | Labyrinth compression seal and turbine incorporating the same A uniquely configured rotating seal tooth is used in conjunction with commonly used labyrinth-type seals that provide a seal between a rotating component and a stationary component. The uniquely configured rotating seal tooth produces a compression mechanism to coun... | 11/29/2011 |
| 7147431 | Cooled turbine assembly A gas turbine engine (10) is provided with a stage of turbine blades (22) surrounded by hollow shroud segments (28). Cooling of the shroud segments (28) is achieved by providing a flow of engine leakage air from space volume (48) c... | 12/12/2006 |
| 7114339 | Cavity on-board injection for leakage flows A gas turbine engine having a turbine section cooling system is disclosed which is able to cool the turbine section of the gas turbine engine to an optimal operating temperature range, while at the same time not substantially degrading engine performance. The disclo... | 10/03/2006 |
| 7059821 | Method and apparatus to facilitate sealing within turbines A method to facilitate sealing between a rotary component and a stationary component is provided. The rotary component includes at least one bucket secured thereon, the bucket having a flow admission side and a flow exit side. The method includes coupling a spill st... | 06/13/2006 |
| 6330790 | Oil sump buffer seal A buffer seal arrangement is provided for improved buffer sealing of oil sump seals in gas turbine engines. The buffer seal arrangement includes a three section labyrinth seal. Disposed between the first and second section is a buffer air supply annulus f... | 12/18/2001 |
| 6244816 | Gland portion deformation preventing structure of low pressure steam turbine A structure for preventing deformation of a gland portion of a low pressure steam turbine by preventing wet steam from entering the gland portion. The gland portion includes a gland casing (3) that surrounds a gland portion periphery (2) of a rotor (1). A... | 06/12/2001 |
| 6238180 | Leak reducing structure in a steam turbine The present invention relates to a leak reducing structure in a steam turbine having high pressure, intermediate pressure, and low pressure turbine sections in a single casing, in which steam leaking from the high pressure side to the intermediate pressur... | 05/29/2001 |
| 6132168 | Balancing a pressure drop across ring seals in gas turbine engines A gas turbine engine includes a plurality of seal stages minimizing leakage of high pressure air from a high pressure cavity into a low pressure cavity. The plurality of seal stages includes an upstream seal stage, substantially adjacent to the high press... | 10/17/2000 |
| 5738488 | Gland for transferring cooling medium to the rotor of a gas turbine A gas turbine rotor steam gland includes a steam inlet supply scroll for supplying steam through radial slots to an axially extending passage in the rotor for steam cooling of hot gas path component parts. The scroll decreases in diameter in the circumfer... | 04/14/1998 |
| 5350276 | High pressure modules of drum rotor turbines with admission of steam having very high characteristics An HP module for a turbine having a drum rotor with admission for steam having very high pressure and temperature characteristics comprises zones of different designs that are suitable for different temperature and pressure levels. An anterior zone A is a... | 09/27/1994 |
| 4854834 | Pump with improved seal A pump has a rotor-carrying pump shaft rotatably supported within an internal pipe by a plurality of spaced bearings. A lowermost bearing is located in the vicinity of the rotor near the end of the internal pipe. Adjacent to the lowermost bearing is a sea... | 08/08/1989 |
| 4708584 | Shrouded inducer pump An improvement in a pump including a shrouded inducer, the improvement comprising providing means for collecting recirculation flow about said inducer and directing it through a fluid permeable wall member to remove any tangential velocity components from... | 11/24/1987 |
| 4545725 | Stress corrosion cracking proof steam turbine A stress corrosion cracking proof steam turbine in which dry steam is blown into the gap between the hub portions of adjacent turbine discs, thereby preventing corrosion in the gap. A nozzle diaphragm is provided between the discs and has an inside circum... | 10/08/1985 |
| 4534701 | Rotor or guide wheel of a turbine engine with shroud ring In rotors and guide wheels of a turbine engine which are equipped with a shroud ring, at least one opening (26, 28) is provided in the shroud ring (12) in the vicinity of the compression side (A) of each turbine blade (10) in accordance with the invention... | 08/13/1985 |
| 4335995 | Set of blades for a turbine and a turbine which includes such a set of blades A set of blades for a turbine which includes a group of blades disposed between an upper plate (12) and a lower plate (11), the group of blades defining a group of passages (3). The set of blades includes ducts (13,23) in the upper plate (12) and/or in th... | 06/22/1982 |
| 4242041 | Rotor cooling for double axial flow turbines A double axial flow turbine structure having rotor cooling on the upstream side of the turbine's inlet or control stages with lower pressure turbine stages being situated axially downstream from the control stages. Motive fluid flow through the control st... | 12/30/1980 |
