Abstract:
Turbinenrad (1) für eine Strömungsmaschine, insbesondere für einen Abgasturbolader, wobei das Turbinenrad (1) umfasst: eine Nabe (4), ein erstes Ende (2) und ein zweites Ende (3), wobei sich eine Außenkontur (4a) der Nabe (4) von einem Radboden (5) zum ersten Ende (2) hin verjüngt und mehrere um die Drehachse (D) verteilt von der Außenkontur (4a) ragende Schaufeln (6) angeordnet sind, wobei sich eine Öffnung (7) von dem zweiten Ende (3) durch den Radboden (5) hindurch in einen Hohlraum (8) erstreckt, wobei der Hohlraum (8) umfangsseitig von der Innenkontur (4b) der Nabe (4) umgeben ist und einen größten Durchmesser aufweist, der größer als der Durchmesser der Öffnung (7) ist, wobei mehrere um die Drehachse (D) verteilt angeordnete Rippen (9), die sich von der Innenkontur (4b) der Nabe (4) zu der Drehachse (D) hin erstrecken.
Abstract:
L'invention concerne une roue (10) pour pompe centrifuge présentant une direction axiale (X), la roue (10) comprenant un moyeu (24), un voile (26) ayant une forme de révolution comprenant une partie de fixation (28) du voile (26) avec le moyeu (24), le voile (26) s'évasant depuis la partie de fixation (28) selon la direction axiale (X), et un bourrelet annulaire (30) disposé entre le voile (26) et le moyeu (24), le bourrelet annulaire (30) étant fixé au voile (26) tandis qu'un espace annulaire (32) est ménagé entre le moyeu (24) et le bourrelet annulaire (30). L'invention concerne également une pompe centrifuge comprenant la roue (10) et un procédé de fabrication de la roue (10).
Abstract:
Novel slurry formulations and processes for forming improved protective coatings used in the hot section components of gas turbine engines are provided. The process includes a unique two-step deposition methodology whereby the required concentration of reactive element within an improved reactive element doped aluminide coating can be consistently produced in a reproducible manner.
Abstract:
Die Erfindung beschreibt ein strömungsführendes Bauteil, wobei bei dem Bauteil Übergänge zwischen einzelnen Bereichen durch Kerben behaftet sind, wobei das Lastkollektiv der Kerbe rechnerisch ermittelbar ist, wobei die Kerben, die von außen nur schwer und/oder gar nicht direkt zugänglich sind, entsprechend ihrer mechanischen Beanspruchung geometrisch ausgeformt sind.
Abstract:
A turbine abradable component includes a support surface and a thermally sprayed ceramic/metallic abradable substrate coupled to the support surface for orientation proximal a rotating turbine blade tip circumferential swept path. An elongated pixelated major planform pattern (PMPP) of a plurality of discontinuous micro surface features (MSF) project from the substrate surface. The PMPP repeats radially along the swept path in the blade tip rotational direction, for selectively directing airflow between the blade tip and the substrate surface. Each MSF is defined by a pair of first opposed lateral walls defining a width, length and height that occupy a volume envelope of 1-12 cubic millimeters. The PMPP arrays of MSFs provide airflow control of hot gasses in the gap between the abradable surface and the blade tip with smaller potential rubbing surface area than solid projecting ribs with similar planform profiles.
Abstract:
L'invention concerne un système de bridage (1) comportant une mâchoire de bridage (7) montée sur l'axe d'un vérin (4) pneumatique ou hydraulique, dans ledit vérin est d'une structure qui, lorsque l'alimentation dudit vérin en énergie pneumatique ou hydraulique est coupée, entraîne la mâchoire de bridage vers sa position de serrage, l'alimentation dudit vérin en énergie pneumatique ou hydraulique s'opposant audit serrage, et où il est prévu des moyens de verrouillage (8) du vérin lorsque la mâchoire de bridage est en position desserrée.
Abstract:
A method of producing a turbine rotor, in particular a steam turbine rotor, is provided. A forged and machined existing steam turbine rotor (2) having partially larger dimensions as dimensions of an intended rotor (1) is provided. The form of the existing rotor is compared with the form of the intended rotor and a position of the intended rotor within the existing rotor is chosen. Material is applied by build-up welding on portions (A, B) of the existing rotor where not enough material is present for machining the intended rotor at the chosen position. The intended rotor is produced at the chosen position by machining the existing rotor.
Abstract:
A ceramic turbine component is formed by a process including mixing a ceramic powder with a metal binder powder mixture. The powder mixture is then formed into a turbine component that is subsequently densified by partial transient liquid phase sintering. In an embodiment, the turbine component may be formed by an additive manufacturing process such as selective laser sintering.
Abstract:
Plated polymeric gas turbine engine parts and methods for fabricating lightweight plated polymeric gas turbine engine parts are disclosed. The parts include a polymeric substrate plated with one or more metal layers. The polymeric material of the polymeric substrate may be structurally reinforced with materials that may include carbon, metal, or glass. The polymeric substrate may also include a plurality of layers to form a composite layup structure.
Abstract:
A dual wall component includes a first outer wall extending from a leading edge to a trailing edge, a first inner wall spaced from the first outer wall by a plurality of first cavities and first ribs, a second inner wall spaced from the first inner wall by a plurality of second cavities and second ribs, and a second outer wall extending from the leading edge to the trailing edge and spaced from the second inner wall by a plurality of third cavities and third ribs. Portions of the first and second outer walls have thicknesses less than about 0.018" (0.457 mm). In a method for forming a dual wall component, component walls are formed by additive manufacturing and without using cores to form the cavities.