Abstract: A system for capturing the energy of fluid currents, using axial turbines with one free end and the other end fastened to a mechanical element or electric generator, characterized in that the turbines include coil springs, helically twisted plates or crossbeams, complete helical turbines with their shafts or just their blades, which capture the energy of wind or water, with their shaft or fastened end actuating an electric generator or mechanical system. In all cases the blades around the rotation axis of the turbines have an inclination such that they generate a torque in the same direction and the turbines are automatically oriented by the water or air currents, like weather vanes.

Abstract: The invention relates to turbo molecular pumps enabling high pumping speed. The disclosure suggests using one or more cage-like rotor stages to optimize pumping speed on vacuum systems with low gas flows and low ultimate pressures. This allows for a smaller motor as well as smaller overall form factor and makes it well suited, in particular, for compact mass spectrometers and desk-top mass spectrometers.

Abstract: The invention relates to an impeller for a pump or turbine, comprising at least one blade, which blade is provided on the pressure side thereof with a standing edge on its outer peripheral edge zone. The invention also relates to a pump for pumping water or a turbine for generating energy from water and having a casing and such an impeller.

Abstract: A screw system including a plurality of segmented blades. Each blade segment of the plurality of blade segments including a mounting portion and a vane portion. The mounting portion, having a helical length, for removably attaching the blade segment. The vane portion extending from the mounting portion along the helical length thereof. The vane portion having a front surface that is not parallel to a back surface from the mounting portion to a tip of the blade segment, along the helical length.

Abstract: A method and a device used to store a product inside a receptacle. The product includes a first liquid component and at least a second component. Inside the receptacle, the product is circulated by a conveying apparatus which is positioned in the region of a tubular guide element arranged inside a receptacle. At least one component of the product fed to the receptacle flows first into an internal space of the guide element.

Abstract: A turbine pinwheel has blades mounted with the outer edges curved to respond to the wind transverse to the axis like a vertical axis turbine while the blades inner edges are twisted to respond to the wind parallel to the axis like a horizontal axis turbine. With two rotor subassemblies mounted on the same shaft the pinwheel spins the same direction regardless of the direction of the wind in relation to the pinwheel axis. Each rotor subassembly may be made from a single sheet of material cut to a specific shape and formed to create the pinwheel blades and blade supports.

Abstract: A propeller has a number of blade surfaces or winglets extending helically around its rotational axis in the most streamlined manner. The winglets gradually project at an increasing distance outward with an arcuate shape, each defining a rearwardly concave channel that increases in volume and degree of encirclement rearward on the propeller. In the front of the propeller, the winglets are shaped so that they have edges angled obliquely and diagonally that conformingly and without cavitation cut into the water and cause it to flow smoothly in the channels. In the middle of the propeller, the winglet edges extend rearward so that water entrained in the channel is directed rearward without centrifugal loss. In the rear portion of the propeller, the channels narrow and reduce in volume so as to expel the water from the concavity.

Abstract: A spiral turbine blade having at least one concave compartment that is rotatable by a moving fluid for the generation of electricity is provided. A spiral turbine blade is aligned so that the axis of rotation is generally parallel to the mean direction of a moving fluid. Attached to the intake-facing side of the at least one spiral turbine blade are concave compartments comprised of an intake void, interior space, and exit void. The concave compartments are oriented to capture an additional range of velocity imaginary vectors; specifically those aligned via vortex inducing elements, such as spiral depressions on a conical intake shroud, thereby augmenting the torque induced the spiral turbine blade, and thus improving the conversion efficiency and electrical energy output.

Abstract: Multiple horizontal axis type rotors are coaxially attached along the upper section of an elongate torque transmitting tower/driveshaft. The tower/driveshaft projects upward from a cantilevered bearing means, and is bent downwind, until the rotors become sufficiently aligned with the wind to rotate the entire tower/driveshaft. Power is drawn from the shaft at the base. Surface mount, subsurface mount, and marine installations, including a sailboat, are disclosed. Blade-to-blade lashing, and vertical axis rotor blades may also be included. Vertical and horizontal axis type rotor blades may be interconnected along the length of the tower/driveshaft to form a structural lattice, and the central shaft may even be eliminated. Aerodynamic lifting bodies or tails, buoyant lifting bodies, buoyant rotor blades, and methods of influencing the tilt of the rotors, can help elevate the structure. This wind turbine can have as few as one single moving part.

Abstract: A platform-like device for generating electricity from moving fluids has at least two fluid turbines coupled to one another through a frame. The fluid turbines are adapted to rotate in opposite directions. The fluid turbines also provide buoyancy for the platform so that the platform is self supporting in the water. The fluid turbines preferably have helicoid flights (screw-like threads) mounted to generally prolate casings. The fluid turbines preferably connect to electric generators through belt, chain-drive, or other transmission systems. The platform may additional support a wind turbine.

Abstract: A bladeless fan structure includes a driving member, a pipe member, and at least one air-pressure increasing area. The driving member has a shaft connected and extended through the pipe member, and a first space is formed between an inner surface of the pipe member and an outer surface of the shaft. The air-pressure area is provided on the inner surface of the pipe member or the outer surface of the shaft. The pipe member is provided with at least one opening communicating with the first space and the air-pressure increasing area. When the driving member drives the shaft to rotate in and relative to the pipe member, air in the first space is brought to flow and is compressed in a direction along the air-pressure increasing area to blow out of the pipe member via the opening to achieve the function of a bladeless fan.

Abstract: The invention relates to a rotor for an axial flow pump for conveying a fluid having an axis of rotation and having an impeller blade which has at least one part surface which extends transversely to the axis of rotation and beyond it, wherein the impeller blade has throughgoing webs or a network of webs which connect a different marginal regions of the impeller blades to one another. A good compressibility is hereby achieved in the radial direction with high stability during operation.

Abstract: A system for converting wind energy to rotational mechanical energy, comprising a conical impeller having multiple spiral vanes on its outer surface, the impeller supported so that it can rotate about its vertical, central axis in response to airflow impinging on the impeller, and connected to a mechanical drive system to transmit energy from the rotation of the impeller to a device that performs useful work using the transmitted energy.

Abstract: An auger assembly according to one example embodiment includes an auger having a helical flight extending along a longitudinal axis. The auger has a central opening running along the longitudinal axis. The auger has an end that includes at least a portion of a turn having substantially zero pitch. A retaining member has a body including a groove on an outer surface of the body. The groove has a shape complementary to the helical flight at the end of the auger. At least a portion of the end of the auger is retained within the groove. A rotatable coupling member extends along the longitudinal axis. At least a portion of the rotatable coupling member is positioned within the central opening of the auger and presses the outer surface of the retaining member against an inner diameter of the end of the auger.

Abstract: Wind turbine (1) comprising a rotor (2) around a rotation shaft (3), having a plurality of blades (4) at a distance around the rotation shaft (3), in which the blades (4) can drive the rotor (2); a cavity (10) which extends between the ends (15) of the blades (4) closest to the rotation shaft (3); a plurality of vanes (5) around the rotor (2) for guiding wind to the blades (4), in which the vanes (5) extend from the ends (14) of the blades (4) furthest from the rotation shaft (3) to a second end (16) of the vanes (5). The vanes (5) and blades (4) merge into each other at the same curvature mathematically tangentially in a plane at right angles to the rotation shaft (3) and the curvature of the vanes (5) is described by a part of a logarithmic spiral.

Abstract: A pump for solids handling is provided having a suction liner in combination with an impeller. The suction liner has a suction liner spiral design. The impeller has forward curved impeller suction side pump out vanes.

Abstract: An arrangement for extracting energy from flowing liquid, such as tidal flows, oceanic currents and water flowing in rivers. The arrangement comprises a support device (12) and a turbine device (1) which is pivotally connected to the support device (12) about a substantially horizontal axis (18). The turbine device includes at least one helical turbine (2; 4), each having an axle connected to an energy converter (22; 24). The turbine device (1) has a proximate end and a distal end, the proximate end being pivotally connected to the support device (12), and the distal end being freely movable in a substantially vertical, circular path in the flowing liquid. This enables the turbine device, in use, to adjust to an operational angle with respect to a horizontal plane. The arrangement is characterized in that the distal end of the turbine device (1) is provided with at least one transverse bar (7), stabilizing the operational angle of the turbine device (1).

Abstract: A centrifugal boost pump inducer section includes a plurality of inducer main blades, and a plurality of splitter blades, each of which includes normal to the blade mean line cross sectional surfaces distributed over the length of the blades, the cross sectional surfaces defined as a set of R-coordinates, theta-coordinates and Z-coordinates relative to an impeller outer diameter set out in one set of tables. A centrifugal boost pump impeller section includes a plurality of impeller main blades, a plurality of primary splitter blades, and a plurality of secondary splitter blades, each of which includes normal to the blade mean line cross sectional surfaces distributed over the length of the blades, the cross sectional surfaces defined as a set of R-coordinates, theta-coordinates and Z-coordinates relative to an impeller outer diameter set out in another set of tables.

Abstract: An Archimedean Modular/Multi-Axis Rotor (AMR) is a wind/fluid driven electrical generating device as described which utilizes a single foil rotor and appears in an elongated Archimedean curve tapering at its ends. A plurality of AMR's can be assembled in a multiplicity of tetrahedral or other 3-dimensional type structures that generate electric power. These structures would be manufactured to facilitate easy shipping, handling, assembly, erection and maintenance. The AMR is quiet (no prop buffeting), bird friendly, can accommodate any varying orientations to the wind/fluid direction and continues to operate even when in the direct shadow of adjacent AMR rotors.

Abstract: A wave energy converter comprises a rotor, which is designed to convert a wave movement of a body of water, in which the wave energy converter is arranged, into a rotational movement of the rotor, wherein a mean density of at least one rotating component of the rotor can be adjusted and/or is lower than the mean density of the fluid surrounding the rotor in the body of water. The disclosure likewise relates to a corresponding control device and an operating method.

Abstract: Disclosed is an assembled helical turbine system, which can prevent its assembly/disassembly from being hindered by a rotational force generated during the assembly/disassembly process. The assembled helical turbine system includes a helical turbine formed with a plurality of blades in such a manner as to continuously generate a rotational force under unidirectional or multidirectional fluid flow; a housing assembly for rotatably supporting the helical turbine while surrounding the helical turbine; stoppers formed on a peripheral surface of the housing assembly in such a manner as to protrude to a predetermined height from the peripheral surface; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to the stoppers so as to fix the stoppers.

Abstract: A impingement cooling system for heavy duty turbines that includes a manifold affixed to a casing of the heavy-duty turbine, wherein the manifold includes a plurality of impingement holes in the surface of the manifold and a blower that provides air flow across the plurality of impingement holes of the manifold to cool the casing of the heavy-duty turbine to control the clearance between a tip of a turbine blade and a shroud of the heavy-duty turbine.

Abstract: Disclosed is an assembled helical turbine system, which can strengthen weakenings of a housing assembly, and simultaneously can be easily assembled/disassembled. The assembled helical turbine system comprises the housing assembly including a plurality of bearing spiders for rotatably supporting a rotating shaft of a helical turbine, and a plurality of side posts for connecting and fixing the respective bearing spiders to each other, the side posts being fixed in such a manner as to radially protrude by a predetermined length from peripheral surfaces of the bearing spiders; filling members for filling and reinforcing spaces between the peripheral surfaces of the bearing spiders and outlines of protruding portions of the side posts; and a housing supporter for supporting the housing assembly in such a manner that the housing assembly can be inserted into and withdrawn from the housing supporter, the housing supporter having catch grooves that are recessed in a shape corresponding to stoppers.

Abstract: The invention relates to a rotating machine for interaction with a fluid medium, comprising a rotor with one or more blades with which energy is extracted from or relinquished to the medium. The blade extends helically or spirally along the rotor axis. The projection of the blade forms in the flat plane a continuously narrowing strip spiralling around a centre point. The blade is preferably membrane-like. As seen in side view the blade has a cone-shaped end situated on the downstream side of the fluid medium.

Abstract: A water powered turbine (1) comprises a main support frame-work (2) which rotatably carries a rotor (3) comprising a main shaft (5) to which three blades (7) are attached by carrier discs (8) and (9). The carrier discs (8, 9) are rigidly secured to the main shaft (5), and the blades (7) are pivotally connected to the discs (8) and (9) by pivot shafts (16) and (17). Each blade (7) is of constant hydro-foil cross-section along its entire length and defines a first upper spiral (12) and a second lower spiral (13). The first spiral (12) extends from a first end (10) which is coupled to the main shaft (5) by the carrier disc (8), and the second spiral (13) of each blade (7) extends from a second end (11) of the blade (7) which is coupled to the main shaft (5) by the carrier disc (9). The first and second spirals (12) and (13) are of opposite hand and extend from the respective first and second ends (10, 11) to meet midway between the respective first and second ends (10, 11).

Abstract: A vertical axis turbine and method of making same is disclosed. The device and method comprise a plurality of blades rotatably disposed around an axis of rotation at a plurality of blade locations, each blade being twisted at a first angle about its longitudinal axis, each blade having its distal ends located a predetermined distance from the axis of rotation, each blade being bent at one or more central locations along the longitudinal axis so the one or more central locations are the same predetermined distance from the axis of rotation as the distal ends, each blade having a foil cross section perpendicular to the axis of rotation for maintaining unidirectional rotation of that blade about the axis of rotation in a fluid flow, and each blade having its longitudinal axis tilted at a second angle with respect to the axis of rotation.

Abstract: A power generator assembly for using kinetic energy from a flowing fluid to generate power. The power generator assembly includes a blade assembly and a generator. The blade assembly has a head end for facing oncoming flowing fluid, a tail end spaced from the head end for facing in the direction of flow of the fluid, and a rotational axis extending between the head end and the tail end. The blade assembly includes a blade arrangement which is arranged in generally helical fashion about the rotational axis, and at least one mounting formation connected to the blade arrangement. Each mounting formation is adapted to permit mounting of the blade assembly for rotation about its rotational axis, so that in use fluid flowing past the power generator assembly interacts with the blade arrangement to rotate the blade assembly about its rotational axis. The generator is drivingly connected to the blade assembly for generating power in response to rotation of the blade assembly.

Abstract: An air induction system consisting of a cylindrical main flow tube, a helical vane disposed within the main flow tube, and, preferably, a noise absorbing perforated tube disposed within the main flow tube in concentric relation to the helical vane. The twist direction of the helical vane provides air flow rotation in the same direction of rotation as the turbine wheel. The helical vane causes noise reflection and enhancement of noise attenuation by the perorated tube and its adjoining one or more acoustic cavities.

Abstract: A spiral turbine includes an axle configured to rotate and one or more spiral blades coupled to the axle by one or more support connections. Each spiral blade is formed around and outside of a conical inner space which is coaxial with the axle.

Abstract: A diffuser is provided having a number of diffuser channels defined by a top wall, bottom wall, and two sidewalls. The sidewalls can be constructed according to an involute of a circle which provides constant interwall distance between the sidewalls along the length of the diffuser channel. The top and bottom walls, however, diverge from one another along the length of the diffuser channel to provide a desired diffusion.

Abstract: Turbines and methods for their use, for generating power utilizing the flow of water or other fluids. In certain embodiments, turbines with helical blades oriented to efficiently intercept off axis or angular fluid flow, such as presented by whirlpool water flow patterns. In certain preferred embodiments, turbines having helical blades with major blade surfaces oriented to take advantage of whirlpool or circular-angle flow patterns, depending on geographic location of installation in the northern or southern hemisphere. In still other embodiments, turbines in which the pitch of rotor and/or helical blade surfaces is variable.

Abstract: Disclosed herein is a crosscurrent tacking portable hydrokinetic energy conversion hydrofoil useful for generating electricity in moderate velocity currents and especially useful for rapid deployment and removal from a land base, boat or dock. The device comprises a buoyant and ballasted semi-cylindrical shroud containing a turbine rotor, annular cylindrical wing, a linear expansion nozzle, an alternator with linkages to a turbine shaft, an insulated conductor cable and tether lines. Hydrofoil elements enable the device to tack into a stream and hold a stable position. A system using two tether lines, each with one end connected to the device are fed into a stream to a desired distance from a surface base and are subsequently individually tensioned and fixed to a point on the base, stabilizing the device.

Abstract: A vertical axis turbine and method of making same is disclosed. The device and method comprise a plurality of blades rotatably disposed around an axis of rotation at a plurality of blade locations, each blade being twisted at a first angle about its longitudinal axis, each blade having its distal ends located a predetermined distance from the axis of rotation, each blade being bent at one or more central locations along the longitudinal axis so the one or more central locations are the same predetermined distance from the axis of rotation as the distal ends, each blade having a foil cross section perpendicular to the axis of rotation for maintaining unidirectional rotation of that blade about the axis of rotation in a fluid flow, and each blade having its longitudinal axis tilted at a second angle with respect to the axis of rotation.

Abstract: A screw turbine comprising a helical turbine blade mounted for axial rotation, a mount associated with the helical turbine blade and mounting the helical turbine blade for axial rotation, and a generator associated with the helical turbine blade which converts energy imparted to the helical turbine blade to electricity, wherein the diameter of the helical turbine blade is less than the lead of the helical turbine blade and wherein said screw turbine is adapted to permit lateral exchange of fluid in use.

Abstract: The catheter device comprises a drive shaft connected to a motor, and a rotor mounted on the drive shaft at the distal end section. The rotor has a frame structure which is formed by a screw-like boundary frame and rotor struts extending radially inwards from the boundary frame. The rotor struts are fastened to the drive shaft by their ends opposite the boundary frame. Between the boundary frame and the drive shaft extends an elastic covering. The frame structure is made of an elastic material such that, after forced compression, the rotor unfolds automatically.

Abstract: Method for configuring the constituent elements of hollow helical wheels or their cages, which is based on using geometrical figures whose centers serve as reference for constructing them and defining their areas. Values of angles, offsets of the centers, and pitches, make it possible to control all the constituent elements.

Abstract: A turbine includes a plurality of blades that rotate in a single direction when exposed to fluid flow, wherein the plurality of blades are joined to the central shaft by a plurality of radial spokes disposed substantially perpendicular to the central shaft such that the rotating plurality of blades causes the shaft to rotate. The plurality of blades has a uniform airfoil-shaped cross section, where the airfoil cross section presents a non-zero angle of attack to the current. The plurality of blades wind in a spiral trajectory, rotating around the central shaft and having a variable radius along the length of the central shaft such that a distance measured from the plurality of blades to the center shaft is greater near the center of the turbine than at either end.

Abstract: A vertical axis turbine machine for converting fluid flow into rotational energy and having a housing with an inlet, a turbine rotor having two spiral turbine blade sets, namely an upper blade set and a lower blade set, mounted on a common vertical axis in the housing, and in which the upper blade set twists in one direction and in which the lower blade set twists in the opposite direction, the upper and lower blade sets meeting at a central area of the rotor midway between top and bottom, and flow guides in the housing guiding incoming fluid flow onto the turbine rotor, and the rotor being surrounded by a plurality of impeller vanes extending vertically within the housing, and the housing having upper and lower outlet ducts, and outlets rearwardly of said housing.

Abstract: A helical turbine power generation system is configured to generate electricity by using a helical turbine and an overload prevention generator. More specifically, the helical turbine is rotatably provided in a frame so as to continuously generate a rotation force under unidirectional or multidirectional fluid flow and a step-up gear is configured to increase the rotational velocity of the helical turbine up to a level required for generating electricity. Additionally, an overload prevention generator is incorporated to generate electricity by using the rotational velocity transferred from the step-up gear thereby preventing an overload caused by a sudden increase in the rotational velocity of the turbine.

Abstract: A vertical axis wind turbine has a plurality of main blades each of which is relatively thin. The blades each have a thickened portion extending along the trailing edge of each blade. Furthermore, each blade is fabricated in at least two sub-sections, wherein at least one strut extends between a central support column and a junction where the blade sub-sections abut.

Abstract: A helical multi-piece auger that is rotatable by a moving fluid for the generation of energy is provided. The helical multi-piece auger may include several interior pieces and two tapered end-pieces mounted on a central shaft. The pieces may include an outer spiral flange perpendicular, in both directions, to a portion of helical auger. Each tapered end-piece may be tapered with respect to both the outer diameter of a helical auger portion, and the width of an outer spiral flange. Each tapered end-piece may have an outer edge that effectively merges with the central shaft of the multi-piece auger over a radial arc of between 90 and 180 degrees. The helical multi-piece auger may include wing-shaped nose cones that are axially offset with respect to each other and house hydraulic components. The helical multi-piece auger may be rotatable by the moving fluid to facilitate generation of energy.

Abstract: A radial compressor rotor is provided for stabilizing the flow behavior of a delivery gas, consisting of a wheel disc and blades arranged uniformly in the circumferential direction, wherein the generatrix of the surface of the blades is designed as a curved line at least in a curved section, such that the surface is curved in two directions in this section.

Abstract: An impeller includes an impeller body which rotates about a rotation axis, and a vane which is provided at the impeller body. The impeller body receives force asymmetric with respect to the rotation axis in driving and rotation in a fluid in a manner that radially inward fluid force, which is generated due to arrangement of the vane, acts on a predetermined point in a peripheral direction. In the impeller body, a filled space filled, in a fluid, with the fluid is formed.

Abstract: In one aspect, a wind turbine blade assembly includes a central shaft defining an axis of rotation and a plurality of helically twisted blades supported on the central shaft. The helically twisted blades have an inner edge and an outer edge, and at least a portion of the helically twisted blades is radially spaced apart from the central shaft. In another aspect, a wind turbine apparatus employing the wind turbine blade assembly is provided.

Abstract: A snow thrower impeller includes a layer of material comprising blade support walls and blades extending from the blade support walls.

Abstract: The invention relates to a method and apparatus for gradually converting marine wave energy into electricity. The energy reserve provided by wind power holds enough energy for the needs of the entire mankind. The invention provides an efficient means of putting this energy reserve to practical use. Mounted on a rotating power shaft is a pair of form parts, the convex and concave shape, especially the round-pointed open V-shape of which reverses its orientation by 180 degrees, i.e. turns from convex to concave, whenever the power shaft makes a rotation of 180 degrees. The circular motion of water occurring in a wave drives such a turbine effectively while the wave dies out. The pair of convex and concave form parts extends helically around the power shaft, whereby water currents in all directions, which come to contact with the pair of form parts, produce a rotative moment.

Abstract: A vertical axis turbine and method of making same is disclosed. The device and method comprise a plurality of blades rotatably disposed around an axis of rotation at a plurality of blade locations, each blade being twisted at a first angle about its longitudinal axis, each blade having its distal ends located a predetermined distance from the axis of rotation, each blade being bent at one or more central locations along the longitudinal axis so the one or more central locations are the same predetermined distance from the axis of rotation as the distal ends, each blade having a foil cross section perpendicular to the axis of rotation for maintaining unidirectional rotation of that blade about the axis of rotation in a fluid flow, and each blade having its longitudinal axis tilted at a second angle with respect to the axis of rotation.

Abstract: A helical auger turbine and hydrokinetic device for use with electrical generators for producing electricity. A helical turbine blade may be mounted on a central shaft, and a flange extending perpendicularly to an edge of the turbine blade. The helical auger may be a multi-section auger having radial sections covering a radial arc of between 45 degrees and 180 degrees, and that are rotational molded with identical center sections. The auger may have tapered end sections. The radial and end sections may be interlockingly mounted onto the central shaft to enable the complete transfer of torque captured by the helical auger by a moving fluid media, such as a tidal water flow, to the central shaft. The adjacent surfaces of the radial and end sections may be flush with one another to reduce disruptions of the moving fluid flowing over the completed helical auger and rotating the assembled helical auger.

Abstract: The present invention is a more simplified and efficient design of a turbine. The use of a logarithmic curve pattern for blade design and an aerodynamic profile allows the present invention to not only be versatile in its uses, but also much more efficient at gathering forms of energy for different purposes.

Abstract: An electricity-generating Savonius-type wind turbine apparatus has a pair of blades configured helically around a central axis. The wind turbine apparatus is modular and sectional such that each section includes a pair of blades useful for being pushed by wind to generate electricity via an attached electrical generator. Further, a series of modular wind turbine sections generates electrically via an attached electrical generator. The wind turbine apparatus further includes one or more airfoils attached to an axis of rotation for aiding in the rotation of the central axis for generating electricity.