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| Number | Title | Issue Date |
| 8152445 | Fluid flow machine with fluid injector assembly A fluid flow machine has a flow duct confined by a wall of a casing, with a fluid supply chamber being arranged in an area of the wall, which is in flow connection with an injector insert. The injector insert is provided with an injector nozzle for supplying fluid f... | 04/10/2012 |
| 8152444 | Fluid injector nozzle for a main flow path of a fluid flow machine A fluid flow machine includes an annulus duct formed between a casing and a rotor drum, which is rotatable about a machine axis. At least one row of rotor blades is arranged in the annulus duct, with the latter forming a main flow path and with at least one fluid in... | 04/10/2012 |
| 8092148 | Gas turbine having a peripheral ring segment including a recirculation channel A gas turbine having at least one compressor, at least one combustion chamber, and at least one turbine, the or each compressor and/or the or each turbine having a rotor that includes rotor blades surrounded by a stationary housing, and a run-in coating being assign... | 01/10/2012 |
| 8066471 | Annular flow duct for a turbomachine through which a main flow can flow in the axial direction Disclosed is an annular flow duct for a turbomachine, the flow duct arranged concentrically about a machine axis running in the axial direction and defined by a boundary wall of circular cross section for directing a main flow, wherein the boundary wall has a plural... | 11/29/2011 |
| 8052375 | Fluidic sealing for turbomachinery Disclosed is a seal for turbomachinery including a seal face locatable between a first turbomachinery component and a second turbomachinery component. At least one fluid channel extends through the seal. The at least one fluid channel is capable of injecting fluid f... | 11/08/2011 |
| 7811050 | Operating line control of a compression system with flow recirculation A system for controlling the operating lines of a gas turbine engine comprising a compression system which compresses an incoming flow of a gas, a bleed system which extracts gas from a bleed location in the compression system prior to the gas entering a throttling ... | 10/12/2010 |
| 7575412 | Anti-stall casing treatment for turbo compressors A compressor includes a casing defining a generally cylindrical flow passage, a rotor carrying at least one set of rotor blades, at least one set of stator blades, and anti-stall casing treatment. The casing treatment includes an annular recess in the casing for rem... | 08/18/2009 |
| 7364404 | Turbomachine with fluid removal A turbomachine includes at least one rotor (6), at least one stator (7), and a casing (1), with the rotor (6) comprising several rotor blades (8) attached to a rotating shaft, and with the stator (7) being provided with stat... | 04/29/2008 |
| 7229243 | Compressor A compressor for compressing a gas comprises an impeller wheel (1) mounted within a housing (2) defining an inlet and an outlet (6). The inlet comprises an outer tubular wall (7) extending away from the impeller wheel in an upstream direc... | 06/12/2007 |
| 7210905 | Compressor having casing treatment slots A compressor (16) comprises a rotor (40) having a plurality of circumferentially spaced radially outwardly extending rotor blades (42). A casing (44) surrounds the rotor (40) and rotor blades (42). The casing (44) has... | 05/01/2007 |
| 7186072 | Recirculation structure for a turbocompressor A recirculation structure for turbo-compressors has an annular chamber that is positioned in the area of the free blade ends of a rotating blade ring and that radially borders the main flow channel, and has a multitude of guide vanes arranged in the annular chamber ... | 03/06/2007 |
| 7147426 | Shockwave-induced boundary layer bleed An apparatus and method is provided for improving efficiency of a transonic gas turbine engine compressor by bleeding off a shockwave-induced boundary layer from the gas flow passage of the compressor using an array of bleed holes having a downstream edge aligned wi... | 12/12/2006 |
| 7083379 | Compressor A compressor for compressing a gas comprises an impeller wheel (1) including a plurality of vanes (4) rotatably mounted within a housing (2). The housing (2) has an inner wall defining a surface (5) located in close proximity to ra... | 08/01/2006 |
| 7077623 | Fluid flow machine with integrated fluid circulation system A fluid-flow machine includes at least one rotor and a free number of stators flown by a fluid, with at least one blade thereof positioned on throat-confining surfaces provided with both a device for fluid removal from the flow path and a device for fluid supply int... | 07/18/2006 |
| 7074006 | Endwall treatment and method for gas turbine An endwall treatment for a gas turbine engine having at least one rotor blade extending from a rotatable hub and a casing circumferentially surrounding the rotor and the hub, the endwall treatment including, an inlet formed in an endwall of the gas turbine engine ad... | 07/11/2006 |
| 7025557 | Secondary flow control system The present invention is a system (20) for controlling various fluid flows, e.g., secondary fluid flows including cavitating fluid flows, typically developed along the shroud line and usually in or around a leading edge (21) within a flow channel (2... | 04/11/2006 |
| 6935833 | Recirculation structure for turbo chargers Recirculation structure for turbocompressors, having a ring chamber which is arranged in the area of the free blade ends of a blade ring largely upstream of the latter and adjoins the main flow duct. A plurality of guiding elements are arranged in the ring chamber d... | 08/30/2005 |
| 6932563 | Apparatus, system and method for minimizing resonant forces in a compressor A buffer chamber and outlet guide provide an air path from an intake passage in a compressor housing to an upstream position relative to an intake port of the compressor. Surging is minimized during low airflow conditions while cyclic forces on the blades of the imp... | 08/23/2005 |
| 6905305 | Engine casing with slots and abradable lining An engine casing (16) encloses a rotor (15) and has a wall the inner surface (17) of which has slots (20) therein. An abradable lining (19) is attached to the inner surface (17) of the wall and extends across the slots (2... | 06/14/2005 |
| 6742983 | Compressor casing structure A compressor casing structure in the region of a rotor blade ring through which there is an axial flow, having a multiplicity of axial grooves which extend from a first radial plane upstream of the blade-tip inlet edges into a second radial plane between the blade-t... | 06/01/2004 |
| 6729839 | Toroidal and compound vortex attractor Disclosed is an improved vortex attractor that utilizes a toroidal vortex within the attractor housing in order to establish a pressure differential between outside the device and inside. Furthermore, means to generate a cylindrical vortex to supplement the toroidal... | 05/04/2004 |
| 6699008 | Flow stabilizing device The present invention is a device (100) for at least partially stabilizing an unstable fluid flow within a flow channel (103) by capturing at least a portion of the unstable fluid within a vaneless diffuser having a diffuser slot (104). The present invent... | 03/02/2004 |
| 6648591 | Tip treatment assembly for a gas turbine engine A tip treatment assembly is provided including a tip treatment bar (16) and retaining means (24, 26) which cooperate with a retaining element (30, 32) to retain the tip treatment bar (16) with respect to support means (44) of the assembly. The retaining m... | 11/18/2003 |
| 6619909 | Casing treatment for a fluid compressor An axial or centrifugal flow compressor having arrays of blades (16) extending across a working medium flowpath (18) includes a casing treatment for enhancing the compressor's fluid dynamic stability. The casing treatment features a circumferentially exte... | 09/16/2003 |
| 6591516 | Hair dryer A hair dryer including a main body, a centrifugal fan, at least one air inlet and at least one inlet guide. The main body has an air outlet. The centrifugal fan is provided in the main body and configured to blow air toward the air outlet. The centrifugal... | 07/15/2003 |
| 6585479 | Casing treatment for compressors A cast assembly for a gas turbine engine compressor, the compressor including a plurality of axial flow stators and a rotor having a plurality of axial flow blades, each of the blades having a tip section and a leading edge. The assembly comprises a stato... | 07/01/2003 |
| 6514039 | Processing tip treatment bars in a gas turbine engine Tip treatment bars 16 of a rotor casing 2 for a gas turbine engine are subjected to a process which induces compressive stress within the bars 16. The process may be a laser shock peening process applied to opposite sides 20 of each bar 16. The processing... | 02/04/2003 |
| 6514034 | Pump A pump, comprising: an impeller 1 having blades; and a casing 121 for storing the impeller therein, on an inner surface of which, confronting to the impeller, are formed plural numbers of shallow grooves 124 in a direction of pressure gradient of fluid, a... | 02/04/2003 |
| 6432302 | Water circulation apparatus system and method This circulation device is equipped with a water impeller that is larger than and tightly fitted over the top of the draft tube through which the water from the pond or reservoir is drawn. The water drawn up and directed outwardly over a large diffuser pl... | 08/13/2002 |
| 6409470 | Tip treatment bars in a gas turbine engine A gas turbine engine casing includes a tip treatment ring 20 which comprises end supports 18 which support tip treatment bars 16. Each tip treatment bar 16 is mounted at its ends within the respective end supports 18 by damping elements 22, which isolate ... | 06/25/2002 |
| 6302640 | Axial fan skip-stall An axial fan includes a hub within a housing. A cavity is formed between the hub and housing. A plurality of blades is on the hub, with an air separator ring disposed operatively adjacent to the blades. The ring supports a plurality of vanes that are long... | 10/16/2001 |
| 6231301 | Casing treatment for a fluid compressor An axial flow or centrifugal flow compressor having arrays of blades (16) extending across a working medium flowpath (18) includes a casing treatment for enhancing the compressor's fluid dynamic stability. In one variant of the invention the casing treatm... | 05/15/2001 |
| 6135707 | Steam turbine with a condenser and method of cooling a steam turbine in the ventilation mode The steam turbine has an interior chamber through which an action steam can flow. The action steam is condensed in a condenser. The condenser is connected to the interior via a cooling-steam conduit. The cooling-steam conduit can be shut off by means of a... | 10/24/2000 |
| 6027304 | High pressure inlet bleed heat system for the compressor of a turbine The high pressure inlet bleed heat system includes a plurality of tubes which receive heated compressed air from the compressor extraction discharge manifold. The tubes extend into the inlet duct of the compressor, are uniformly spaced one from the other ... | 02/22/2000 |
| 5800121 | Pneumatic electric generating system An apparatus is provided for generating power, including modules connected in a closed loop. At least one module includes a duct. A motive fluid passes through the duct from the upstream side to the downstream side. An inlet fan is mounted in the duct at ... | 09/01/1998 |
| 5607284 | Baffled passage casing treatment for compressor blades A tip shroud assembly comprising a segmented annular shroud, each segment comprising an first arcuate member having a first radially inner surface and a circumferentially extending channel extending radially outward therefrom, and a second arcuate member ... | 03/04/1997 |
| 5586859 | Flow aligned plenum endwall treatment for compressor blades A tip shroud assembly comprising a segmented annular shroud, each segment comprising a radially outer surface, and a radially inner surface including a plurality of first holes defining a first row and a plurality of second holes defining a second row, wi... | 12/24/1996 |
| 5474417 | Cast casing treatment for compressor blades A tip shroud assembly comprising a segmented annular shroud, each segment comprising first, second and third arcuate members and a plurality of vane walls integral with the first second and third members, and each arcuate member has a radially inner surfa... | 12/12/1995 |
| 5340271 | Flow control method and means The method controls gas flow in an axial flow compressor in which the flow at one or more chosen station in the direction of flow through the compressor is sensed at a series of circumferentially spaced positions. Flow variations above a predetermined lim... | 08/23/1994 |
| 5275528 | Flow control method and means The invention provides a method of controlling gas flow in an axial flow compressor, in which the flow at least at one chosen station in the direction of flow through the compressor is sensed at a series of circumferentially spaced positions. Flow variati... | 01/04/1994 |
