Abstract:
Anti-wear surface coatings and methods for making them are provided. Such anti-wear surface coatings are particularly suitable for use in a compressor, such as a scroll or rotary compressor. A precursor powder material can be applied via spraying to a wear surface of a metal component of the scroll or rotary compressor. The precursor powder material comprises a powderized thermoplastic polymer ( e.g., PEEK), a first lubricant particle ( e.g., molybdenum disulfide (MoS 2 )) and a second lubricant particle ( e.g., polytetrafluoroethylene (PTFE)), which is heated to form a substantially uniform coating covering the underlying metal component having a thickness of less than or equal to about 0.006 inches (about 152 μm). The anti-wear surface coating can be used on a face seal for a bellows-type shaft seal for compressors.
Abstract:
There is provided a vertical axis wind turbine comprising an upright rotatable shaft mountable on a support structure, a plurality of upright blades, and a plurality of prestressable supporting arms for attaching the plurality of blades to the shaft. The wind turbine may further comprise a shaft stabilizing assembly comprising a plurality of coplanar wheels having compliant outer layers, rotatably mounted on a support, for radially and rotatably supporting a rotatable shaft. The disclosure further provides a method of assembly of the wind turbine.
Abstract:
Die Erfindung betrifft einen Rotorblattanschluss (17), insbesondere einer Windenergieanlage (1), zur Verbindung eines Rotorblatts (5) mit einer Anschlussvorrichtung (4), umfassend einen Querstift (20, 20') und eine Verbindungsvorrichtung (13, 21), die miteinander in Wirkverbindung bringbar sind, wobei die Verbindungsvorrichtung (13, 21) eine Längsachse definiert. Der erfindungsgemäße Rotorblattanschluss (17) zeichnet sich dadurch aus, dass der Querstift (20, 21') in Richtung der Längsachse der Verbindungsvorrichtung eine höhere Biegesteifigkeit aufweist als quer zur Längsachse (18). Ein alternativer erfindungsgemäßer Rotorblattanschluss (17) zeichnet sich dadurch aus, dass die Querstifte (20, 20') in wenigstens zwei Reihen (33, 34) angeordnet sind, wobei wenigstens eine erste Reihe (33) näher an dem blattwurzelseitigen Ende (19) des Rotorblatts (5) angeordnet ist als wenigstens eine zweite Reihe (34). Ein weiterer erfindungsgemäßer Rotorblatt-anschluss (17) zeichnet sich dadurch aus, dass der Querstift (20, 20') von dem Rotorblatt (5) vollständig eingekapselt ist. Eine weitere Variante des erfindungsgemäßen Rotorblattanschlusses (5) zeichnet sich dadurch aus, dass das Material (30-32) des Rotorblatts (5) wenigstens im Bereich des Querstifts (20, 20') eine Struktur aus faserverstärkten Kunststofflagen (31) und Lagen aus einem Metall umfassenden Verstärkungsmaterial (32) umfasst.
Abstract:
Hochdruckpumpe Hochdruckpumpe (10), mit einem Trägerelement (12), einer in dem Trägerelement (12) drehbar gelagerten Antriebswelle (15), wenigstens einer von der Antriebswelle (15) antreibbaren Pumpeneinheit (13, 13a), die ein Zylindergehäuse (14) mit einem bei bestimmungsgemäßen Einsatz hochdruckbeaufschlagten Zylinderraum (32) aufweist, in dem ein axial bewegbarer Hochdruckkolben (30) angeordnet ist, der mit der Antriebswelle (15) in Wirkverbindung steht. Das Zylindergehäuse (14) ist mit dem Trägerelement (12) gekoppelt und das Trägerelement (12) ist aus einem Kunststoff gebildet.
Abstract:
Die Erfindung betrifft ein Zylinderkurbelgehäuse für eine Brennkraftmaschine mit kraftführenden Bereichen (1 ) aus Vollguß, bei dem die kraftführenden Bereiche (1 ) durch benachbarte, eine Zellstruktur (7) aufweisende versteifende Bereiche (4) gestützt sind.
Abstract:
Es wird eine Radialkolbenpumpe mit einem Pumpengehäuse (1) und darin eingesetzten Pumpenelementen (9) beschrieben, deren im Pumpengehäuse (1) verlaufenden Hochdruckkanäle so gestaltet sind, dass die zulässigen Betriebsdrücke signifikant gesteigert werden.
Abstract:
The present invention relates to a wind turbine blade comprising at least two regions bonded together by a bonding material, wherein the bonding material contains particles (6) having a size distribution and stiffness and strength properties which result in the bonding material having higher strength than corresponding bonding material without any particles. Wind turbine blades may be partly or fully made from layers of resin-preimpregnated fibres(4), also called pre-pregs, the resin constituting the bonding material between the layers. In a manufacturing method according to the present invention,particles(6)arearranged between at least some of the pre-pregs (4) during manufacturing. The particles (6) are used to improve the mechanical properties, such as the shear strength or the fracture toughness, and thereby lower the risk of debonding. Hereby a more reliable wind turbine blade is obtained. The invention further relates to a method of manufacturing such a wind turbine blade.
Abstract:
The invention relates to a rotor blade for wind power plants, comprising at least one shell forming an outer contour of the rotor blade and at least one belt extending in the longitudinal direction of the rotor blade, said belt having fibers embedded into a plastic matrix and being connected to the at least one shell, wherein the height of the belt extending in the normal direction to the contour of the rotor blade in at least one longitudinal section of the rotor blade varies across the profile depth (t).
Abstract:
The invention concerns a wave energy plant with at least two floating bodies, where each floating body is made up of at least two pontoons, preferably cylindric pontoons with a length larger than the diameter, where the pontoons are rigidly connected by rigid members, where at least one energy absorbing mechanism is arranged between two interhinged floating bodies. By such a plant is achieved the advantage that the number of movable parts is minimised, and that a plant according to the invention thus becomes more easy and rapid to service. Also, there is achieved the advantage that even by small waves, the floating bodies farthest from the energy absorbing mechanism are provided a substantial movement with a substantial force, as the plant may be designed with a relatively long lever arm from the outermost pontoon and to the hinge between the two joined floating bodies at which the energy is absorbed and transformed.
Abstract:
A deformable trailing edge section (3) of a wind turbine blade (1), at least part of said section (3) being formed in a deformable material. The blade section (3) comprises one or more cavities (5) being in connection with or connectable to a fluid source in a way that allows fluid to stream from the fluid source to the cavity or cavities (5), so that the shape of the deformable trailing edge section (3) and thereby the camber of the blade cross-section (3) is changeable by the pressure of fluid in the cavity or cavities (5) with insignificant changes of the thickness and chord wise length of the deformable trailing edge section. Furthermore a wind turbine blade (1) is described, having at least one of such trailing edge section (s) (3) and to a system (11) for mounting a blade section (3) on a main blade (2) of a wind turbine. In addition a method of manufacturing a deformable trailing edge section (3) of a wind turbine blade (1) is disclosed.