Abstract: The present invention relates to a disc turbine for converting the energy associated with a fluid into mechanical energy. The turbine (1) comprises a housing and a rotor (4) inside said housing (3) which can rotate with respect to it about a rotation axis (100). The rotor (4) comprises a plurality of disc elements (11A, 11B) coaxial with said axis. The turbine is characterized in that it comprises a distributor (5) with a distribution wall (5A) which at least partially surrounds the discs. Such a wall (5A) is arranged inside said housing (3) so as to define a diffusion chamber (7) with the housing itself, which chamber at least partially surrounds the distribution wall (5A). The latter comprises a plurality of nozzles (6A, 6B, 6C, 66A, 66B, 66C), each of which is provided with an inlet section (61) communicating with said chamber (7), an outlet section (62) adjacent to the discs (11A, 11B), and a converging portion (615) which accelerates said fluid towards said outlet section (62).

Abstract: A cooling fan module includes a fan frame, a light emitting part installed in the fan frame, an LED controller installed in the fan frame and electrically connected to the light emitting part, a fan body, and an external connector. The fan body includes a supporting stand detachably connected to the fan frame, a blade set installed on the supporting stand and can rotate with respect to the supporting stand, and a fan connector fixed to the supporting stand and electrically connected to the blade set. The external connector is fixed to the fan frame. The external connector can be electrically plugged in the fan connector to send a first signal; the external connector is electrically connected to the LED controller to send a second signal. Therefore, the cooling fan module has the advantages of easy assembly and reduced incorrect connection.

Abstract: The invention in at least one embodiment includes a system for treating water having an intake module, a vortex module, a disk-pack module, and a motor module. In a further embodiment, a housing is provided over at least the intake module and the vortex module and sits above the disk-pack module. In at least one further embodiment, the disk-pack module includes a disk-pack turbine having a plurality of disks having at least one waveform present on at least one of the disks.

Abstract: A ventilation nozzle arrangement for a cockpit of a vehicle includes a ventilation nozzle for ventilating the vehicle by an airflow and plurality of fins between which the airflow can escape and/or escapes in a ventilation direction. The fins consist of a light-permeable material.

Abstract: A portable air compressor includes a box and a compressor unit accommodated in the box. The compressor unit includes a main frame, a cylinder fitted with a piston body, a motor, and a transmission mechanism. The motor drives the transmission mechanism to have the piston body conduct reciprocating motion in the cylinder to produce compressed air, which is transferred to an air storage container. The cylinder and the main frame are integrally formed of plastic. The cylinder defines an exit hole communicating with an inner space thereof. A metal seat is integrally formed at the cylinder. The central hole of the metal seat communicates with the exit hole of the cylinder. A plug is urged by a compression spring to seal the central hole of the metal seat. The metal seat can endure high temperature within the cylinder to ensure air-tightness between the plug and the metal seat.

Abstract: A turbine assembly is provided assembly having rotor defines a plurality of recesses disposed about an axis of rotation (Ar). Each of the recesses having a wide end and a narrow end. The recesses are disposed in the alternating orientations such that the wide ends and the narrow ends of the adjacent recesses are proximate to one another to minimize wake turbulence, thereby optimizing efficiency.

Abstract: An Archimedean screw turbine generator of increased efficiency is disclosed. Rather than having the helical flighting of the turbine perpendicular to the central torque tube, this design incorporates cupped or cambered flighting. This increases the turbine's overall efficiency, as well as its efficiency across a broad range of fluid flows. The improved Archimedean screw turbine produces efficient power from about 5 percent of design flow to about 110 percent of design flow. In addition, design flow efficiency is 9-10 percent better than existing Archimedean screw generators. Prior art turbines of the Archimedean screw type operate efficiently only near design-rated flows. Most are turned off if flows drop more than 30 percent below deign-rated flow figures. For a presently-preferred embodiment of the invention, the screw axially rotates within a close-fitting half pipe. A three-phase permanent-magnet AC servo motor is used as a generator.

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 vertical axis wind turbine system includes a vertical shaft rotatably mounted about a vertical axis and an upper platen coupled to the vertical shaft. Vanes are coupled to the vertical shaft and extend downward from the upper platen. Each vane has a concave face and an opposing convex face. A lower platen is coupled to the vertical shaft and to each vane. The lower platen has an opening formed therein proximate to the concave face of each vane. A plenum is disposed below the vertical axis wind turbine and is rotatably mounted about the shaft for rotation about the vertical axis. The plenum includes a top portion disposed proximate to the lower platen and has an outlet port therein. The outlet port is in fluid communication with at least one of the lower platen openings. A plenum passage provides fluid communication between a plenum inlet and the outlet port.

Abstract: A board card having a control circuit includes a first substrate and an electrical fan. The first substrate has a heat source and the electrical fan is disposed on the first substrate. The electrical fan includes a revolving spindle, a plurality of blades and a LED module. The revolving spindle is disposed on the first substrate and rotates about an axis. The blades are joined with the revolving spindle. The LED module is electrically connected to the control circuit, wherein when the revolving spindle drives the blades rotate, the light-emitting direction of the LED module is along a radial direction of the revolving spindle.

Abstract: A fluid flow guide element (1) constructed, for example, as a diffuser having an inlet opening (2) and an outlet opening (3) whose respective cross-sectional areas differ from one another. Corresponding to the exterior view shown in FIG. 1, the inside wall surface (4) of the fluid flow guide element (1) is provided with spirally arranged recesses (5) and elevations (6) having an inclination (7) relative to a longitudinal axis (8) of the guide element (1). The recesses (5) and/or elevations (6) have a width that increases or decreases steadily between the inlet opening (2) and the outlet opening (3). This facilitates efficient operation of a fluid flow guide element (1) which simultaneously has both a large opening angle and a reduced design length by achieving a more uniform flow or flow profile due to the spiral arrangement of the recesses (5) and elevations (6).

Abstract: An apparatus comprises a tank, an air compressor, and a motor with an output shaft. A fan is mounted on the output shaft. A drive assembly interconnects the motor operatively with the compressor. The apparatus further includes a base structure and a shroud. The base structure is configured to support the compressor, the motor and the drive assembly on the tank. The shroud is configured to cover the compressor, the motor, the drive assembly and the base structure on the tank. The shroud has a cooling air inlet port and a cooling air outlet port. A plurality of internal wall portions of the shroud are configured to direct cooling air to flow over the motor and the compressor upon flowing through the cover from the inlet port to the outlet port under the influence of the fan.

Abstract: A computer-implemented model of fan section of a gas turbine engine accounts for the turbulence in the gas flow emanating from the rotor assembly and impinging upon an inlet to the stator vane cascade. The model allows for user-input variations in the sweep and/or lean angles for the stator vanes. The model determines the resulting acoustic response of the fan section as a function of the turbulence and the lean and/or sweep angles of the vanes. The model may be embodied in software that is rapidly executed in a computer. This way, an optimum arrangement in terms of fan noise reduction is quickly determined for the stator vane lean and sweep physical positioning in the fan section of a gas turbine engine.

Abstract: A rotary machine such as a pump or turbine has a casing defining a space therein. A fluid channel is formed in the casing and has a plurality of first channel portions fluidically coupled a plurality of second channel portions. The first and second channel portions are separated by the space. A rotor is rotatably coupled within the casing and within the space. The rotor has a plurality of apertures therethrough positioned within the space. The apertures are adjacent to the channel to coupled the first channel portions to the second channel portions.

Abstract: A spin vane for burners and over fire air ports in a furnace comprise a sheet-like vane element having a base and an extension extending perpendicularly off the base on the low pressure side of the vane element. The extension reduces the formation and propagation of vortices on the low pressure side of the vane, increasing flow efficiency and reducing pressure loss across the spin vanes.

Abstract: With a turbine of the present invention, a preferably spiral partition is formed upright on the outer periphery of a rotor carried rotatably in a casing. A large number of blades are mounted between turns of the partition at a predetermined interval on the outer periphery of the rotor, and a channel for the working fluid is formed in the space between the blades and the partition on the outer periphery of the rotor. Therefore, the turbine of the present invention is a highly efficient turbine capable of efficiently utilizing even a low pressure low speed low flow rate working fluid, while being capable of efficiently converting the kinetic energy of the working fluid into the rotational force of the rotor and realizing a low speed high torque rotation. A turbocharger making use of the turbine is capable of performing sufficient supercharging not only during high speed rotation but during low speed rotation of the engine, while being preferably capable of cleaning emission gases.

Abstract: A high-vacuum pump includes a plurality of pump stages, each of which has a rotor and a stator. In one of the pump stages, either the rotor or the stator is provided with a structure that effects the gas conveying includes radially extending webs whose pitch and width decrease from the suction side of the pump stage to the thrust side of the pump stage.

Abstract: The turbine comprises a casing having a plurality of grooves spirally formed upon an inner circumference thereof and a rotor having a plurality of grooves spirally formed upon an outer circumference thereof, each groove of the rotor having a plurality of vanes. The plurality of grooves in the casing are opposed to the plurality of grooves of the rotor, thereby a plurality of flow passages are formed spirally.

Abstract: A flywheel rotary engine power plant comprises a flywheel having internal passages through which power fluid is conducted to impart rotation to the flywheel about an axis. The flywheel is mounted on a journaled shaft and the pressure fluid is conducted through the shaft and introduced into a central region of the flywheel. The passages extend generally radially outwardly from the center of the flywheel. Each passage comprises a straight entrance section which merges into a single turn helix section of approximately 315.degree. extent and the helix section in turn merges into a straight exit section which extends to the passage outlet at the perimeter of the flywheel. The exiting fluid is directed against a vaned casing surrounding the perimeter of the flywheel to add a jet-propulsion effect. The propulsive force is developed by the action of the fluid on the single turn helix chambers and the jet-propulsion effect.

Abstract: According to the turbo molecular pump of the present invention, a regenerative pump is constructed by arcuate eddy current grooves having a predetermined angle with respect to the surface of the outer periphery of a rotor and which are circumferentially engraved in array in the rotor and an arcuate ventilating channel engraved in the circumferential direction in a stator, and a partition is defined in the stator circumferentially partitioning the ventilating channel, so that the working range on the low vacuum side may be extended.

Abstract: A simple, rugged and wide velocity range radial flow turbine wheel, with entry flow radially inward and exhaust flow radially outward, has an efficient integral fluid-dynamic multiple staging system needing no stationary devices for redirecting the fluid. Consequently there are no clearance problems, and it can be used with all fluids, including contaminated ones. The tangentially-entering fluid stream is captured and trapped in an annular passageway between an outer set of circumferentially mounted blades and a carefully coordinated inner set of circumferentially mounted planar surfaces. Energy is extracted from the stream when the flow direction is changed each time the faster-moving fluid is vectored radially inwardly from a blade to an inner surface, then vectored radially outwardly to the next blade, then to the next inner surface, etc. All of the pressure, lift and drag forces contribute to turbine output.

Abstract: A turbine wheel for a low-speed, single-stage turbine is constructed with a large number of blades which extend radially outward in planes normal to the axis of rotation of the wheel, each blade having a relatively sharp leading edge and a thicker body portion which merges smoothly with the leading edge. In the preferred construction each blade in transverse cross-section is diamond shaped and is arranged with two of its opposite sharp edges forming the leading and trailing edges of the blade.

Abstract: A cohesion type turbine having a plurality of axially spaced stacks of discs. Each stack is comprised of a plurality of thin, highly polished discs which are separated by spacers. The discs and spacers are non-rotatably mounted on a shaft which is rotatably mounted in a housing. The housing has a nozzle mounted thereon to direct a fluid medium to an intermediate stack of discs along chords of the discs, and a transition duct having a single portion inlet for receiving the fluid medium from the intermediate stack of discs and a bifurcated portion for directing the fluid medium to the axially outer stacks of discs along chords thereof.

Abstract: A power generating system which includes a turbine and a radiant heat boiler for supplying motive fluid to the turbine. The turbine is provided with a stator having a cylindrical bore and a cylindrical rotor provided with a substantially uniformly rough lateral surface. The inner wall of the turbine stator is provided with a continuous oblique helical groove which serves as a passageway for the motive fluid. The lateral surface of the rotor has a relatively high drag coefficient and the rotor is actuated to a high rotational speed by the motive fluid flowing in the stator passageway and past the rotor lateral surface.