Patents Examined by Viet P Nguyen
  • Patent number: 11401910
    Abstract: Disclosed herein are flexible wave energy converters that actuate electrical generators with dynamic strain (e.g., flexing, stretching, twisting, distension) to convert wave energy to electrical energy. The flexible wave energy converter utilizes flexible electric generators embedded throughout the wave-energy converter's flexible body.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: August 2, 2022
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Blake Craig Boren, Jochem Weber
  • Patent number: 11384741
    Abstract: A stator assembly, an electric machine and a wind turbine having the stator assembly are provided. The stator assembly includes a stator iron core, a stator bracket supporting the stator iron core, and an air flow conveyer configured to convey a first cold air flow along the radial direction of the stator iron core to a radial side surface of the stator iron core opposite to an air gap side. The embodiment of the present disclosure enables two radial sides of the stator to be cooled at the same time. Thereby, the expansion and deformation of the stator iron core are reduced, the air gap is prevented from being narrowed, magnetic poles are protected from being baked by the high temperature of the stator, and the service life of the electric machine is prolonged.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: July 12, 2022
    Assignee: BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.
    Inventor: Shengjun Ma
  • Patent number: 11371570
    Abstract: Provided is a drive train of a wind turbine. The drive train includes a torque limiter assembly including a torque limiter. The torque limiter includes: a first clamping disk, a friction disk, a second clamping disk, and a preloading means. The clamping disks and the friction disk are configured such that the clamping disks frictionally transmit a torque to the friction disk. The torque limiter assembly further includes a torque shaft and a hub shaft. The torque shaft is connected to a rotor of the wind turbine, and the hub shaft is connected to a generator rotor of a generator. The friction disk is bolted to the hub shaft via interface bolts from a downwind side, such that the torque limiter is detachable from the hub shaft as a whole. Further provided is a wind turbine.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: June 28, 2022
    Assignee: ADWEN GMBH
    Inventor: Andreas Rogg
  • Patent number: 11365713
    Abstract: A pumped hydro energy storage system and method are disclosed. The system employs a high-density fluid, such as a slurry, to improve power output. In some cases, the fluid is a binary fluid system, with a high-density fluid and a lower-density fluid, such as water. The lower-density fluid flows through the turbine unit of the system, avoiding the need to modify the system to handle the high-density fluid, while achieving improved power output. The system can be configured with one atmospheric reservoir for a higher-density fluid and another one for a lighter-density fluid. Each of them is connected to a pressurized cavity which is filled with the higher-density or lighter-density fluid. The atmospheric tanks may be at the same elevation, or the tank with high density fluid might be higher for increased energy output. For example, the system may be placed on a topographical elevation.
    Type: Grant
    Filed: April 13, 2019
    Date of Patent: June 21, 2022
    Assignee: MAGELLAN & BARENTS, S.L.
    Inventor: Ciriaco P Bustamante
  • Patent number: 11365653
    Abstract: A power generation device and method using organic working fluid for circulation without pump and valve are invented, the principle is able to be called flash jet natural cycle. The flash injection tube, the magnetic sphere motion tube and the storage tank are connected to form the main loop. The finned tube and the storage tank are connected to form the cooling loop. The working fluid is heated in the flash injection tube by low-temperature heat source, and is cooled in the finned tube by air or water. The gravity and flash force jointly drive the flash jet natural cycle. The lower magnetic ball acts as a one-way valve for supplying liquid to the flash injection tube. The upper magnetic ball acts as a valve and a rotor driven by the flash force and gravity to move linearly and produce electricity.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: June 21, 2022
    Assignee: XI' AN JIAOTONG UNIVERSITY
    Inventors: Qincheng Bi, Jinle Zhao, Fuqiang Huo, Tao Zhang
  • Patent number: 11365720
    Abstract: A Device to Enhance Radiant Transfer of Heat from the Earth to Outer Space comprising a collector of energy from a renewable energy source, a storage device for the collected electrical energy in a rechargeable battery, a radiant energy emitter plate consisting of an enclosure with supports, radiant energy emitter plate, plate heating elements, insulating elements for reduction of heat loss via conduction from the enclosure and insulating elements for reduction of heat loss via convection from the enclosure, temperature sensor, and a controller device for regulating the connection and flow of gathered energy from the collector to the storage device to the radiant energy emitter plate.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: June 21, 2022
    Inventor: Michael Ross Adelman
  • Patent number: 11358716
    Abstract: A system for electric power production from wind includes a glider having an airfoil, an on-board steering unit, a flight controller for controlling the steering unit, and a connection unit for a tether. The system further includes a ground station including a reel for the tether, a rotating electrical machine connected to the reel, and a ground station controller for controlling the reel and the rotating electrical machine. A master controller operates the system in at least first and second operation modes. In the first operation mode electric power is produced with the rotating electrical machine from rotation of the reel caused by reeling out the tether using a lift force generated upon exposure of the airfoil of the airborne glider to wind. In the second operation mode, the reel is driven by the rotating electrical machine, thereby reeling in the tether onto the reel.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: June 14, 2022
    Assignee: AMPYX Power B.V.
    Inventor: Richard Ruiterkamp
  • Patent number: 11346238
    Abstract: Various methods and systems are provided for generating exhaust energy and converting exhaust energy to electrical energy while an engine is not running. In one example, a system for an engine comprises: a first turbocharger including a first compressor driven by a first turbine, the first turbine disposed in an exhaust of the engine; a fuel burner fluidly coupled to the exhaust upstream of the first turbine; a generator coupled to one of the first turbine or an auxiliary, second turbine fluidly coupled to the exhaust downstream of the fuel burner; and one or more bypass valves configured to adjust a flow of air that bypasses the engine and is delivered to the fuel burner.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: May 31, 2022
    Assignee: Transportation IP Holdings, LLC
    Inventors: James Robert Mischler, Roy James Primus, Thomas Michael Lavertu
  • Patent number: 11339758
    Abstract: A DC power plant generating DC power from a variety of engines including a Stirling cycle engine. The DC power plant includes a relatively small start-up power source that is discontinued after the engine is running. A method for producing DC power for a load including starting up an engine using power supplied by a relatively small power supply supplemented by a capacitor bank, providing output from the engine to a generator, producing alternating current (AC) power by the generator, converting the AC power to direct current (DC) power, disabling output of the DC power during a first set of pre-selected conditions, limiting a rate of change of current of the DC power during a second set of pre-selected conditions, reducing conducted and radiated emissions of the DC power, disconnecting the DC power from the load under a third set of pre-selected conditions, and providing the DC power to the load.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: May 24, 2022
    Assignee: DEKA Products Limited Partnership
    Inventors: Andrew A. Schnellinger, James R. Lowell, Bryan A. Finseth, Christopher L. Barber, Jason M. Sachs, Donald J. Lucas, Shannon Prescott, Jeffrey W. Kite, Andras K. Fekete, Douglas R. Adams
  • Patent number: 11336149
    Abstract: A permanent magnet alternator is adapted to be connected to an engine and has a stator, a driven plate, and a rotor. The stator is mounted on the engine. The driven plate is connected to an output shaft in front of the engine and covers the stator. Multiple ventilation holes are formed through the driven plate such that air can remove heat from the stator via the ventilation holes. The rotor is fixed in the rotor recess and has a magnet-mounting ring and multiple magnets. The magnets are mounted on the magnet-mounting ring. An annular radial gap is formed between the magnetic mounting ring and a wall of the rotor recess. The magnet-mounting ring is fixed to the driven plate using ring fasteners such that radial position of the magnet-mounting ring can be adjusted. Therefore, the alternator vibrates less, has better heat dissipation and reduces weight.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: May 17, 2022
    Inventor: Hsun Chien Huang
  • Patent number: 11326578
    Abstract: A control system and control method of a wind farm allows taking into account dynamic variations in the possibilities of reactive power generation of each wind turbine with respect to maximum reactive power generation capacities. The system is configured to receive from at least one first wind turbine of the wind turbines of the wind farm a maximum reactive power limit desired lower than a minimum reactive power capacity required. The system is configured to calculate the individual reactive power setpoints for each of the at least two wind turbines of the wind farm such that the individual reactive power setpoint for the at least one first wind turbine of the wind farm does not exceed the maximum reactive power limit desired.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 10, 2022
    Assignee: NORDEX ENERGY SPAIN S.A.U.
    Inventors: Jose Miguel Garcia Sayes, Guillermo Beriain Guembe, Alberto Garcia Barace, Javier Gil Guruceaga, Daniel Ortiz Irigoyen, Teresa Arlaban Gabeiras, Alejandro Gonzalez Murua, Ricardo Royo Garcia, Miguel Nunez Polo
  • Patent number: 11329583
    Abstract: A generalized frequency conversion system for a steam turbine generator unit. The system comprises at least a variable speed steam turbine with an adjustable rotating speed, a water feeding pump, a variable frequency generator operating at a variable speed, a speed increasing gearbox with a fixed rotating speed ratio, a variable frequency bus and an auxiliary machine. With a change in load of the unit, parameters of steam entering the variable speed steam turbine and an extracted steam amount are adjusted (changed) accordingly, so that the rotating speed of the steam turbine changes accordingly. In this way, on one hand, the rotating speed of the water feeding pump is changed through the speed increasing gearbox; and on the other hand, the frequency of alternating current outputted by the variable frequency generator is changed. In the present invention, there is no need to additionally provide other types of frequency converters, and the system is simple, reliable, low in cost and high in efficiency.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: May 10, 2022
    Inventor: Weizhong Feng
  • Patent number: 11319936
    Abstract: Wind turbine installation (1) comprising a tower (2), a nacelle (3), —a liquid immersed power electrical device (6) having an expansion vessel (7), an air dehydrating breather (8) comprising a moisture absorbing agent (9), and a conduit (10) fluidly connecting the expansion vessel (7) and the air dehydrating breather (8), wherein the wind turbine installation (1) comprises a barrier (11) separating a restricted zone (12) from a non-restricted zone (13) in said wind turbine installation (1), wherein the electrical device (6) is located in the restricted zone (12), wherein the air dehydrating breather (8) is located in the non-restricted zone (12) and wherein the conduit (10) extends through the barrier (11) and a method of maintaining a wind turbine installation (1).
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: May 3, 2022
    Assignee: Vestas Wind Systems A/S
    Inventor: Jesper Hillebrandt
  • Patent number: 11319929
    Abstract: A wind-energy-power-generating device is disclosed for flotation on a body of water. The device includes a turbine assembly having rotor blades rotating about a rotation axis for harnessing kinetic energy from an airflow. The device includes a cowl at least partially surrounding said turbine assembly and defining an airflow passageway between a cowl inlet and outlet, having an inlet and outlet axis, respectively. The inlet and outlet axis intersect at a redirect angle. The device includes a base platform adapted to support the turbine assembly and cowl on the water. The cowl is rotatably mounted on the base platform such that it is rotatable around the turbine assembly to self-align with a wind direction. Stabilising arms extend from the base platform and are spaced circumferentially around a platform axis, to stabilise it on the water. A wind-energy-power-generating device secured to the ground or other fixed non-floating structure is also described.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: May 3, 2022
    Assignee: SEAMACH LTD
    Inventor: Glenn Andrew Hunt Whitfield
  • Patent number: 11313343
    Abstract: A hydroelectric power generation system includes: a generator driven by the hydraulic turbine; a head adjuster adjusting an effective head of the hydraulic turbine; and a controller cooperatively executing: flow rate control for controlling the generator such that a flow rate in the hydraulic turbine is brought close to a target flow rate; and head adjusting control for adjusting the effective head of the hydraulic turbine using the head adjuster such that the effective head of the hydraulic turbine falls within a first range.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 26, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takahiro Abe, Atsushi Suhara, Takahiro Yokoyama
  • Patent number: 11306695
    Abstract: The present disclosure relates to a device and a method for swinging power generation and vibration suppression by using arc-shaped wing plates with rough surfaces. The device consists of two parts, namely, a rotary swinging system and a collector system. The rotary swinging system includes a collector riser, steering bearings, nanometer material arc-shaped power generation wing plates, and flexible tail plates. The collector system includes telescopic power generation cylinders, a waterproof electric slip ring, and a waterproof power transmission line. The suppression of energy-consumption-free vortex-induced vibration is realized under the combined action that the nanometer material arc-shaped power generation wing plates divide a flowing space and adjust a flow direction, the nanometer material arc-shaped power generation wing plates drive the flexible tail plates to swing to destroy a tail vortex street, and hemispherical bulges and trumpet-shaped deflector holes disturb a boundary layer around flow.
    Type: Grant
    Filed: January 17, 2021
    Date of Patent: April 19, 2022
    Assignee: Southwest Petroleum University
    Inventors: Hongjun Zhu, Xin Chu, Hongye Liu, Zhiqi Ding, Shuo Wang, Huazhong Su
  • Patent number: 11300094
    Abstract: A high efficiency compressed-air power generation system has a main casing forming a main passage, a main rotor, an air distributor, and a main generator. The main passage has an intake section and a turbine section. The suction opening is connected to the intake section of the main passage, and the main outlet opening is connected to a turbine section of the main passage. The main rotor is rotatably mounted in the turbine section. The air distributor is configured to supply compressed air into the intake section via multiple nozzles directed toward the main turbine wheels. When compressed air is released from the air distributor, ambient air is sucked into the intake section by compressed air released by the air distributor utilizing Bernoulli's principle. The main rotor is rotated by a mixture of compressed air and ambient air to drive the main generator.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: April 12, 2022
    Inventors: Yu-Chieh Chang, Hung-Sen Chang, Yi-Hsuan Tsai
  • Patent number: 11300001
    Abstract: Systems and methods associated with electrical systems of aircraft are disclosed. A method disclosed herein comprises generating electricity using an electric generator operatively coupled to an engine of the aircraft, supplying the electricity generated using the electric generator to a baseline power bus; generating electricity using an electric starter generator operatively coupled to the engine; and supplying the electricity generated using the electric starter generator to a supplemental power bus independent from the baseline power bus.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: April 12, 2022
    Assignee: BOMBARDIER INC.
    Inventors: Claude J. P. Lavoie, Jean-Hugues Li
  • Patent number: 11300095
    Abstract: This invention discloses an improved wind turbine suitable for mounting without a wind turbine tower. The wind turbine is based on a rotor with appropriately selected blades. A nozzle and diffuser in the wind flow increase the amount of wind energy available to the rotor. The rotor is interruptibly connected with one or more of a plurality of generators which allows generation at a wide range of wind speeds. The rotor is also interruptibly connected with a co-axial flywheel which allows for storage or use of rotational energy as needed by the availability of wind energy. One or more wind turbines can be grouped together in a common housing. Electricity can also be generated by means of stored energy. The lack of a wind turbine tower and the general compact design allows the wind turbine to be used in close proximity to or on buildings.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: April 12, 2022
    Inventor: Peter K. O'Hagan
  • Patent number: 11280211
    Abstract: A compressed gas energy harvesting system (CGEHS) for use in a gas delivery system is disclosed herein. The CGEHS comprises a gas control device connected to a compressed gas container and in fluid communication with a fluid within the compressed gas container. The gas control device comprising one or more electrical components. The CGEHS further includes a power storage device for providing power to the one or more electrical components and a potential energy converter coupled to the one or more electrical components, the potential energy converter for supplying power to at least one of the one or more electrical components and the power storage device by converting the potential energy retained by the compressed gas container into electrical energy.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: March 22, 2022
    Assignee: Western Enterprises/Scott Fetzer Company
    Inventors: Todd A. Veverka, Gregory Brewer Eytchison, Robert S. Kress, John Walter Merrill, Marius Milea