Abstract:
A rotor (30) and an apparatus (10) including a rotor (30) are provided. For example, the apparatus (10) can be a turbine or compressor having a housing (12) in which the rotor (30) rotates while gas is circulated therethrough. The rotor (30) has a plurality of radially extending blades (32), and each blade (32) defines a nonlinear profile along at least one edge (36, 38) so that the strains induced in the blade during Operation are reduced. A method for manufacturing such a rotor is also provided.
Abstract:
Es handelt sich um ein Gerät, welches auf dem Prinzip eines Wirbels wie bei einem Wirbelsturm oder einem Flüssigkeit-/Gaswirbel oder All- Wirbel motorische Energie auf ein Medium (Flüssigkeit/Gas/luftleeren Raum) überträgt, um diese Kraft zu Verschiedenen Zwecken zu nutzen z.B. als Antrieb für Pumpen, Fahrzeuge und - Geräte zu Wasser, Luft und im leeren Raum, und zur Mediumbeschleunigung aller Art. Ein möglichst glatter Kegel mit einer möglichst feinen Spitze wird, entlang der Kegelachse angetrieben, im Medium gedreht. Es entsteht ein homogener Wirbel, welcher im Medium betrieben wird. Der Wirbel saugt alles in sich ein, was beweglich ist, vor allem das genutzte Medium. Um die Wirbelbewegung zu nutzen, wird der Sog in einem Medium- führungsgehäuse umgeleitet, welches dem jeweiligen Zweck angepasst ist. Zu Antriebzwecken wird das vom Wirbel beschleunigte Medium von vorne durch das Medium-führungsgehäuse vom Gesamtmedium entnommen, abgetrennt und entgegen der Bewegungsrichtung wieder zugeführt.
Abstract:
Mäanderförmige Kühlkanäle innerhalb einer Turbinenschaufel sind gusstechnisch schwierig komplett herzustellen. Die vorgestellte Turbinenschaufel (1) weist fertigungstechnisch einfach herzustellende Kühlkanalwände (22) auf, die später die Kühlkanäle (19) bilden, wobei die Mäanderform erst durch ein zusätzliches V-förmigen Einsatz nach dem Herstellungsprozess der Turbinenschaufel erericht wird.
Abstract:
A shaped charge engine includes an annular blast-forming chamber (3) formed by joining inner (1) and outer (2) housings. A central through hole in the inner housing allows exhaust gases to exit. The outer housing comprises a generally round disk with an inner conical concave depression and through holes for the insertion of fuel and ignition. The blast chamber is preferably taper-conical in shape, wider at the base, and gradually decreasing in cross-sectional area as it rises to the apex. This construction forms a circular pinch point or throat toward the apex that produces a primary compression zone. A secondary compression zone is created at the apex of the outer housing, just beyond the throat, producing hypersonic gases as generally opposing exhaust streams collide and are forced to exit the through hole in the inner housing. The shaped charge engine may be used in a variety of applications, including as a pulsed direct propulsion device, as a turbine driver, or in a wide array of tools and appliances.
Abstract:
A spindle assembly configured to be assembled in a machining device. A front cover of the spindle assembly includes passages to allow high pressure fluid to flow towards the blades of the turbine and rotate the turbine; openings located at the front end of the front cover may allow low pressure fluid to flow out of the spindle assembly; passages extending from behind the turbine to the front end of the front cover may allow collection of low pressure fluids that flow towards the rear end of the spindle after hitting the blades of the turbine and to direct these fluids towards the front end of the front cover and out of the spindle assembly. The housing of the spindle assembly may include a rear section configured to be assembled onto the machining device.
Abstract:
A double rotor for vertical axis turbine comprising two single three-vane rotors separated by a horizontal or separation plate, wherein such plate provides two different access areas to the propelling fluid, wherein between each of the three vanes of each of the single rotors it is determined surface continuity attenuated by curves in the fluid flow direction preventing parasitic flows during rotation thereof.
Abstract:
A turbocharger (18) includes a shaft (20), a mixed flow turbine wheel (40) including a wheel hub (44) and blades having tips (42), and a heat shield (11). The heat shield (11) has a side wall, an end (19), and a contoured front edge (13) that connects the sidewall (16) and the end (19). The front edge (13) of the heat shield (11) defines a slope that forms an imaginary line that is angled relative to the sidewall (16) and the end (19), and intersects an axis of rotation of the shaft (20). The heat shield (11) resides at a position that is between a bearing housing (22) of the turbocharger (18) and the turbine wheel (40), and axially inward relative to an axially-facing surface of a turbine volute (24), and between the bearing housing (22) and the turbine wheel (40).
Abstract:
L'invention concerne donc un impulseur polyphasique (rotor) de compression ou de détente apte à être inséré dans un carter d'une pompe polyphasique. L'impulseur comprend une aube (Ai) qui comporte des moyens d'amplification et de répartition (6) d'écoulements de jeu entre ladite aube (Ai) et ledit carter (4).
Abstract:
Tuyère d'une turbomachine équipée de chevrons à face interne non axi-symétrique. L'invention concerne un capot (2) pour une tuyère d'axe longitudinal L-L, la paroi interne (3) du capot présentant une section à une abscisse déterminée (XO) sur l'axe L-L définissant sur la paroi une ligne de col (71), ledit capot (2) présentant en aval de l'abscisse XO des échancrures (9) dans le bord de fuite (5) du capot (2) délimitent des chevrons (10) répartis dans le sens circonférentiel, où, sur le capot (2) à partir de l'abscisse (XO) : - la paroi interne (3) s'écarte radialement vers l'extérieur de la tangente amont (70), jusqu'au sommet (11) d'une échancrure (9), - la paroi externe (4) du capot (2) se rapproche de la tangente amont (70) jusqu'au sommet (11) d'une échancrure (9), et - la paroi interne (3) s'écarte radialement vers l'intérieur de la tangente amont (79), jusqu'à la pointe (13) d'un chevron (10).
Abstract:
A blade outer air seal (BOAS) segment according to an exemplary aspect of the present disclosure includes, among other things, a seal body having a radially inner face that circumferentially extend between a first mate face and a second mate face and axially extend between a leading edge face and a trailing edge face, wherein a radial position of the radially inner face varies at a given axial position.