Abstract: An underwater, sea or ocean submersible hydro power plant system to generate electricity, which includes a chamber comprising a storage container, turbine, generator, transformer, and a floating electric power transmission system, with the chamber connected to a walk-through tunnel, and a maintenance and service station. The hydro power plant system is submersed underwater, or under a sea or an ocean, or submersed in any ‘water or fluid body, or a water-tank. The inflow-lid of the storage is opened to let water flow into the storage, A sluice at the bottom of the storage is opened to let the water gush down and rotate the turbine, which in turn rotates the generator, which produces electricity. The transformer in the chamber and the floating transmission system transmits the electricity to the onshore electricity grid.

Abstract: The invention relates to an aerodynamic device (10) comprising at least one inflatable modular body (1) configured to be adhered by a base (2) of each body of the at least one inflatable modular body to a tower (30), the base (2) of each body of the at least one inflatable modular body (1) comprises at least one fin (4) and the device comprises at least one inflation valve (7, 7?) in one or more bodies of the at least one inflatable modular body (1). The invention further relates to an assembly with a plurality of aerodynamic devices, a tower with one or more aerodynamic devices, a method for installing and a method for uninstalling, respectively, one or more aerodynamic devices.

Abstract: A compact thermal booster solar updraft tower system comprising a 1000-meter tall central tower with 100-meter diameter and base arches for air intake. The system transitions from conventional low-intensity greenhouse heating to high-intensity concentrated thermal injection using radially arranged parabolic troughs, each 1-meter wide and 60-meters long, elevated 30 meters above ground level. Square heat-absorbing stainless steel pipes (45 cm cross-section) suspended above each trough achieve internal operating temperatures up to 500° C., providing 27% greater surface area than circular equivalents for enhanced solar absorption. Staged mixing injection releases heated air at 10-20 meters above a turbine system positioned at 5-10 meters, creating temperature differentials of 100° C. and generating updraft velocities up to 50 mph.

Abstract: A fluid displacement pump can include a rotor; and a stator, where the stator includes an elastomeric material with a non-uniform thickness, and where the rotor and the stator have a one-to-two lobe ratio.

Abstract: Provided is a self-rotating scroll compressor, relating to the technical field of compressors, and includes a scroll compressor structure and a driving motor. The scroll compressor structure includes a compressor housing, and a driving scroll, a driven scroll, a transmission slip ring, and an exhaust shaft that are arranged in the compressor housing; the driving motor includes a motor housing, and a driving shaft, a rotor, and a stator that are arranged in the motor housing; the compressor housing is connected with the motor housing through a side end cover; a phase difference between the driving scroll and the driven scroll is 180°; the rotor and the driving scroll are respectively connected to the driving shaft; the rotor and the stator rotate relative to each other; the transmission slip ring is located between the driving scroll and the driven scroll; the driven scroll is connected to the exhaust shaft rotatably connected to the compressor housing.

Abstract: A compressor-adapted enclosure includes: a main body configured to accommodate and enclose a compressor in the main body; and a plurality of protruding parts protruding from an inner face of the main body, the plurality of protruding parts being in contact with the compressor. The main body is rigid to the degree that the main body bends under its own weight. The protruding parts are more provided at positions corresponding to an electric motor unit of the compressor than at positions corresponding to a compressing unit of the compressor.

Abstract: Provided is a slim axial gap-type electric motor equipped with bobbinless and coreless stators and an electric water pump using same. The axial gap-type electric motor includes: a rotor that is rotatably supported in a fluid flow passage between a pump cover and a body case; a stator that is arranged in a lower space formed by the body case and an upper cover and generates a rotating magnetic field to rotate the rotor; and a partition wall that extends from an upper portion of the inside of the body case to separate the rotor and the stator from each other. The stator includes: 3-phase (U, V, W) coils split and wound in advance into coreless and bobbinless structures; and an auxiliary printed circuit board (PCB) on which the split and wound 3-phase (U, V, W) coils are mounted spaced apart on the same circumference and a plurality of conductive patterns for establishing 3-phase Y-connections of the 3-phase (U, V, W) coils are formed.

Abstract: A blower system includes a blower including an electronic control unit configured to control operation of the blower, a duct holder couplable to the blower and including a flexible duct, the flexible duct configured to extend from and direct an airflow generated by the blower, and one or more of a cooler module, a sensor module, and a filter module, wherein: the cooler module, when coupled to the blower and electrically coupled to the electronic control unit, is configured to cool the airflow generated by the blower, the sensor module, when coupled to the blower and electrically coupled to the electronic control unit, is configured to sense a condition of the airflow generated by the blower, and the filter module, when coupled to the blower, is configured to reduce an amount of a particulate in the airflow generated by the blower.

Abstract: The compressor arrangement comprises a centrifugal compressor configured to work with CO2 in supercritical conditions and comprises an anti-surge control system; the anti-surge control system is configured to measure CO2 flow at the discharge side of the centrifugal compressor and to calculate CO2 suction density and CO2 discharge density based on temperature and pressure both at suction side and at discharge side so that compressor maps may be used for anti-surge control of the centrifugal compressor when CO2 is in supercritical conditions at an inlet of the centrifugal compressor.

Abstract: Introducing the ABMP Compressor, a cutting-edge axial flow compressor technology set to transform gas turbine jet engines and find applications across various domains. Our innovation focuses on optimizing compression ratios and maximizing energy extraction, ensuring efficient operation in diverse conditions. The ABMP Compressor offers adaptability, allowing strategic adjustments for peak performance. Embracing environmental responsibility, it supports sustainable fuels and cleaner energy initiatives. Its seamless integration with turbofans enhances performance and reduces vibrations in gas turbine jet engines and other applications. Engineered to prevent operational disruptions, the compressor mitigates compression stall and surge, promoting stable combustion efficiency with uniform fuel distribution and stable flame fronts.

Abstract: Proposed is an airfoil including a suction surface, a pressure surface, a leading edge, a trailing edge, and a through hole. The suction surface protrudes with an outward convex curved surface. The pressure surface is formed on a surface opposite to the suction surface and has a curved surface recessed concavely. The leading edge is arranged at an upper stream of an air flow and formed where front ends of the pressure surface and the suction surface are joined. The trailing edge is arranged at a lower stream of the air flow and formed where rear ends of the pressure surface and the suction surface are joined. The through hole is formed through the airfoil in a direction from the pressure surface to the suction surface.

Abstract: A ported shroud centrifugal compressor may include an annular housing defining a central opening having an inner surface, the inner surface defining an annular cavity. A ported shroud centrifugal compressor may include an annular divider disposed within the annular cavity to form a downstream slot and an upstream slot axially spaced apart from the downstream slot, wherein the downstream slot and the upstream slot are in fluid communication with the central opening and the annular cavity. A ported shroud centrifugal compressor may include an axial support extending axially across the upstream slot from the inner surface to the annular divider.

Abstract: A ceramic matrix composite (CMC) fastener is provided and comprises a CMC material forming a body portion including a plurality of continuous fibers disposed in a matrix. The body portion defines a body length in an axial direction. The body portion defines a first end and a second end opposite the first end along the body length. The body portion includes a head formed at the first end and a shank extending from the head along the body length. The plurality of continuous fibers extend across the head and the shank.

Abstract: A press-in connection for a pre-perforated component includes a press-in element having a head part with a head seat and a compression collar which adjoins the head part in a press-in direction. The compression collar has a base portion and a filling portion. The filling portion adjoins the base portion so as to form an internal step oriented toward a center axis. In a production process, an annular free space between an embossing collar of a die and a perforated wall is thus reliably filled with collar material through bulk deformation of the collar material, thereby ensuring good pull-out resistance as well as good resistance to torsional movement and watertightness.

Abstract: A monolithic pivot bearing having an outer portion where a limiter extends from the outer portion is provided. The bearing has an inner portion within the outer portion that is rotatable with respect to the outer portion. The inner portion defines a limiter recess that receives the limiter. A limiter width and a limiter recess width define a bearing travel range. Flexure blades having a serpentine configuration are disposed within flexure blade recesses of the bearing. The blades couple the outer portion with the inner portion. The blades flex into a first position when the inner portion or the outer portion rotates in a first direction relative to the other of the inner or outer portions. The blades flex into a second position when the inner portion or the outer portion rotates in a second direction relative to the other of the inner or outer portions.

Abstract: A hybrid bearing stage includes at least one guide rail, a carriage translatably coupled to the at least one guide rail, a plurality of air bearings disposed about the carriage, and a mechanical bearing assembly coupled to the at least one guide rail. The mechanical bearing assembly includes a mechanical bearing guide extending along a length of the at least one guide rail, a plurality of bearing blocks coupled to the mechanical bearing guide, a mounting block coupled to the carriage and positioned adjacent the plurality of bearing blocks, and a flexure mechanism extending between the mounting block and the plurality of bearing blocks. The plurality of bearing blocks apply a damping force to the carriage via contact between the plurality of bearing blocks and the mounting block.

Abstract: A hydrodynamic thrust bearing pad for use with a hydrodynamic thrust bearing assembly is disclosed. The hydrodynamic thrust bearing pad includes a bearing body with a bearing surface and an opposite base surface. The bearing surface is configured to confront a thrust flange of the hydrodynamic thrust bearing assembly and the base surface is configured to confront a stationary disc of the hydrodynamic thrust bearing assembly. The hydrodynamic thrust bearing pad includes at least one weight-reducing void formed in the bearing body.

Abstract: An electromechanical actuator is provided that includes a gear box, a ball screw arrangement, an electric motor, a one-way clutch, an actuator clutch, a rotary magnetic damper, and a translating cylinder. The ball screw arrangement includes a screw shaft and a ball nut. The screw shaft includes a helical groove and ball bearings are disposed between the screw shaft and the ball nut. The screw shaft is coupled with the gear box. The electric motor has a stator, a rotor, and a drive shaft. The one-way clutch is coupled with the EM drive shaft, and is configured to permit rotation of the EM drive shaft in only a first rotational direction. A first clutch member of the actuator clutch is coupled with the EM drive shaft and a second clutch member is coupled with the gear box. The actuator clutch is disposable in an engaged or in a disengaged configuration.

Abstract: A freewheel-axial bearing assembly includes a freewheel and an axial bearing. The freewheel is arranged to transfer a torque based on a relative rotational direction between a stator and a coupling component. The freewheel includes an inner ring, a freewheel sleeve, a clamping body arranged between the inner ring and the freewheel sleeve, and a support ring rotationally fixed to the freewheel sleeve and connected to a stator hub via a first form-fitting connection. The axial bearing includes a bearing disc, and the bearing disc has an integral axial projection form-fittingly connected to a recess in the support ring to form a second form-fitting connection, circumferentially offset relative to the first form-fitting connection.

Abstract: A gear, having a reference diameter of greater than or equal to 1.5 m, with a gear hub and a gear rim, wherein the gear hub and gear rim are releasably connected to one another, and that the gear hub includes a plurality of elements that are welded together.