Patent application number | Description | Published |
20080219852 | Fluid-flow machine and rotor blade thereof - A fluid-flow machine, especially for an aircraft engine, includes a rotor having rotor blades | 09-11-2008 |
20080226439 | Blade variation in dependence of the degree of throttling on fluid-flow machine - A method for the variation of at least one blade row of a fluid-flow machine, in which, in dependence of the actual operating point, in addition to an aerodynamic speed, at least one further quantity pertinent to the position of the operating point in the family of characteristics of the fluid-flow machine is employed for control. | 09-18-2008 |
20080232960 | Fluid return in the splitter of turbomachines with bypass-flow configuration - A turbomachine, includes an annular flow duct, which downstream of at least one stage, is divided into an outer annular bypass duct and an inner annular core-flow duct via a concentrically arranged splitter, wherein the splitter is designed as an intermediate casing with at least one inner volume, through which fluid may be returned between core-flow stages. | 09-25-2008 |
20080298974 | Blade of a fluid-flow machine featuring a multi-profile design - A blade of a fluid-flow machine has a cross-section, which in at least one part of the blade height in at least one flow-line profile section is formed by at least two partial profiles separated from each other, with each of the individual partial profiles having the shape of a blade profile. | 12-04-2008 |
20080310961 | Blade shroud with protrusion - A fluid-flow machine has a main flow path, in which at least one row of blades ( | 12-18-2008 |
20090003989 | Blade with tangential jet generation on the profile - A blade of a fluid-flow machine has at least one cavity | 01-01-2009 |
20090041576 | Fluid flow machine featuring an annulus duct wall recess - A fluid flow machine has a flow path provided by a casing ( | 02-12-2009 |
20090047120 | Blade shroud with fluid barrier jet generation - A fluid flow machine has a main flow path, in which at least one row of blades ( | 02-19-2009 |
20090238677 | Centrifugal compressor with air extraction and return at the casing - A centrifugal compressor includes a rotor | 09-24-2009 |
20090238688 | Fluid injector nozzle - A fluid flow machine includes an annulus duct ( | 09-24-2009 |
20090245998 | Fluid Flow Machine with Multi-Flow Rotor Arrangement - A fluid flow machine includes at least one casing 1 and at least one rotor drum 3 rotatable about a machine axis 4, with stator vanes 8 and rotor blades 7 being arranged in an annulus duct 2 formed between the casing 1 and the rotor drum 3 The annulus duct 2 is divided into an outer annular duct 5 and an inner annular duct 6 by at least one annular flow divider 11, in each of which rotor blades 7 and stator vanes 8 are arranged Outer rotor blades 7 | 10-01-2009 |
20090252596 | Fluid flow machine with fluid injector assembly - A fluid flow machine has a flow duct | 10-08-2009 |
20090263233 | Fluid flow machine with blade row-internal fluid return arrangement - A fluid flow machine has a flow path ( | 10-22-2009 |
20090274554 | Fluid flow machine including rotors with small rotor exit angles - A fluid flow machine includes at least one rotor blade row designed for high work coefficients, which—in its center section and/or averaged over the blade height—provides for an essentially swirl-free relative outflow. The respective rotor, in its trailing edge area, is essentially orientated in meridional direction, which essentially corresponds to the meridional flow direction. | 11-05-2009 |
20090317232 | BLADE SHROUD WITH APERTURE - A fluid flow machine includes a main flow path in which at least one row of blades ( | 12-24-2009 |
20100014956 | FLUID FLOW MACHINE FEATURING A GROOVE ON A RUNNING GAP OF A BLADE END - A fluid-flow machine has at least one row of blades | 01-21-2010 |
20100034637 | FLUID FLOW MACHINE - A fluid flow machine has a main flow path | 02-11-2010 |
20100098527 | FLUID FLOW MACHINE WITH PERIPHERAL ENERGIZATION NEAR THE SUCTION SIDE - A fluid flow machine has a main flow path (“MFP”) | 04-22-2010 |
20100098536 | FLUID FLOW MACHINE WITH RUNNING GAP RETRACTION - A fluid flow machine includes a main flow path which is confined by a hub ( | 04-22-2010 |
20100124487 | MULTI-VANE VARIABLE STATOR UNIT OF A FLUID FLOW MACHINE - A fluid flow machine has a main flow path which is confined by a hub ( | 05-20-2010 |
20100143140 | FLUID FLOW MACHINE WITH SIDEWALL BOUNDARY LAYER BARRIER - A fluid flow machine has a main flow path in which at least one row of blades ( | 06-10-2010 |
20100303629 | FLUID FLOW MACHINE WITH A BLADE ROW GROUP FEATURING A MERIDIONAL EDGE DISTANCE - A main flow path of a fluid flow machine includes N adjacent member blade rows firmly arranged relative to each other in both a meridional direction m and a circumferential direction u. A number of the member blade rows, N, is greater than/equal to 2 and (i) designates a running index with values between 1 and N. A trailing edge HK (i) of a blade of the member blade row (i) is spaced from a leading edge VK(i+1) of a blade of the adjacent, downstream member blade row (i+1) by a meridional edge distance D in a meridional plane established by axial direction x and radial direction r. A value of D along a height of the main flow path increases towards the main flow path confinement at least along a part of the area between the main flow path center and the main flow path confinement. | 12-02-2010 |
20110014040 | FLUID FLOW MACHINE WITH BLADE ROW GROUP - A fluid flow machine has a main flow path in at least one stage, with a rotor arrangement and a stator arrangement, resulting in an increased rotor-stator constriction ratio QRS, which satisfies the following equation: | 01-20-2011 |
20110014057 | ENGINE BLADE WITH EXCESSIVE LEADING EDGE LOADING - A free end of a blade of a fluid flow machine has a skeleton line camber distribution having an excessive value to a relative skeleton line camber of at least α*=0.35 for a related running length of s*=0.1 in a blade profile flow line section between the free end and a blade section at 30% of a main flow path width from the free end. S* is a local running length relative to a total running length of the profile skeleton line and α* is an angular change of the skeleton line relative to a total camber of the skeleton line from a leading edge to a related running length s*. The skeleton line camber distribution runs between leading edge point V (s*=0, α*=0) and trailing edge point H (s*=1, α*=1). | 01-20-2011 |
20120148396 | FLUID-FLOW MACHINE - BLADE WITH HYBRID PROFILE CONFIGURATION - A blade for use in a fluid-flow machine, where at least one of the meridional flow line profile sections MSLi and MSLo is provided at a distance of max. 35% of the main flow path width from the respective inner and outer main flow path boundaries. The blade has in at least parts of a central area a multi-profile configuration such that at least two partial profiles ( | 06-14-2012 |
20140248154 | BLADE OF A ROW OF ROTOR BLADES OR STATOR BLADES FOR USE IN A TURBOMACHINE - The present invention relates to a blade of a row of rotor blades or stator blades for use in a turbomachine, with the blade being designed with a substantially convex suction side and a substantially concave pressure side as well as with a leading edge, onto which the flow passes, and a trailing edge, away from which the flow passes. The blade has at least one contour recess provided on at least one of the blade sides including the suction side and the pressure side, wherein the contour recess includes a step edge, a contour corner and a flank face provided between the step edge and the contour corner. The contour recess extends over at least a part of the profile depth and/or the profile height of the blade. | 09-04-2014 |
20140356143 | ASSEMBLY FOR A FLUID FLOW MACHINE - A structural assembly for a fluid-flow machine includes: a main flow path boundary and at least one row of relatively rotating blades with a gap existing between blade ends of the at least one row of blades and the main flow path boundary. At least one secondary flow duct has in the main flow path boundary one opening each at ends spaced apart in the flow direction, such that the secondary flow duct is connected to the main flow path via the two openings. The structural assembly has at least two components connected to one another, i.e. at least one support component and at least one connecting component, where the support component at least partially forms the main flow path boundary and where the connecting component forms or surrounds at least one part-section of the secondary flow duct. | 12-04-2014 |
20140356144 | ASSEMBLY FOR A FLUID FLOW MACHINE - A structural assembly for a fluid-flow machine includes a main flow path boundary a row of relatively rotating blades with a gap existing between the blade ends and the main flow path boundary. A secondary flow duct is connected to the main flow path via two openings. A structural assembly has at least one support component and at least one insertion component. A structure extending in the circumferential direction and receiving or holding at least one insertion component along the circumference is provided in the support component. Each insertion component forms with at least some of its faces at least part of the main flow path boundary. Each secondary flow duct is jointly limited along at least part of its course by faces of at least two components of the structural assembly. | 12-04-2014 |
20140363277 | ASSEMBLY FOR A FLUID FLOW MACHINE - A structural assembly for a fluid-flow machine includes a main flow path boundary, a row of relatively rotating blades with a gap existing between the blade ends and the main flow path boundary. A secondary flow duct is connected to the main flow path via the two openings spaced apart in the flow direction. A structural assembly has at least one support component and at least one replaceable plug connected directly or indirectly to the support component. The replaceable plug includes a part-section of a secondary flow duct, where the part-section complements at least one further part-section of the secondary flow duct extending outside the plug in the structural assembly to form a secondary flow duct which is continuous between its openings. | 12-11-2014 |
20140363283 | SHROUD ARRANGEMENT FOR A FLUID FLOW MACHINE - A shroud arrangement for a fluid-flow machine includes a blade root connected to at least one blade/vane end of a row of rotor blades or stator vanes, or is connected to at least one such blade/vane end. A shroud is connected to the blade root on the side of the blade root facing away from the blades/vanes. The blade root on the side facing away from the blades/vanes has two blade root fingers extending substantially in the radial direction and axially spaced from one another, the blade root fingers forming between them a recess being continuous in the circumferential direction. An element or area of the shroud for fastening to the blade root is arranged in the recess. The shroud has two webs extending into the recess and enclosed by the blade root fingers, with the two webs forming substantially a V-shaped arrangement. | 12-11-2014 |
20150086344 | ASSEMBLY FOR A FLUID FLOW MACHINE - A fluid-flow machine includes: a main flow path boundary and at least one row of relatively rotating blades with a gap existing between blade ends and the main flow path boundary. At least one secondary flow duct having one opening each is provided in the main flow path boundary at ends spaced apart in the flow direction, such that the secondary flow duct is connected to the main flow path via the two openings. The structural assembly has at least one support component and at least one insertion component. The support component includes a recess extending in the circumferential direction that receives the at least one insertion component such that the support component surrounds the at least one insertion component largely on its sides not facing the main flow path, and where the insertion component completely surrounds or forms at least one secondary flow duct. | 03-26-2015 |