ALSTOM RENEWABLE TECHNOLOGIES Patent applications |
Patent application number | Title | Published |
20160084216 | METHOD FOR MANUFACTURING A ROTATING PART OF A HYDRAULIC MACHINE, ROTATING PART MANUFACTURED ACCORDING TO THIS METHOD, HYDRAULIC MACHINE AND ENERGY CONVERSION INSTALLATION - A method is disclosed for manufacturing a rotating part which belongs to a hydraulic machine of an installation for converting hydraulic energy into electrical or mechanical energy. This rotating part includes blades distributed about an axis of rotation of the rotating part and extending from a leading edge to a trailing edge. This method can include manufacturing, in steel, a first part of each blade, which defines the leading edge thereof, manufacturing a second part of the blade in a material other than steel and attaching this to the first part of the blade so as to form a trailing edge. | 03-24-2016 |
20160076508 | ROTATING PART OF A HYDRAULIC MACHINE, HYDRAULIC MACHINE PROVIDED WITH SUCH A ROTATING PART AND INSTALLATION FOR CONVERTING ENERGY COMPRISING SUCH A MACHINE - When traversed by a flow of water, a hydraulic machine rotating part rotates around an axis of rotation. It includes runners which are distributed around the axis of rotation and each extend between a leading edge and a trailing edge. Each runner can include a first part which defines its leading edge and a second part which is attached to the first part and defines the trailing edge at least in part. The second part can be elastically deformable or displaceable in a reversible manner with respect to the first part, under the action of the flow of water, the second part defining, when the machine operates, the direction of the flow of water downstream of the runner. | 03-17-2016 |
20160032608 | TOWERS - Methods and arrangements for controlling the tension of tensioning cables in precompressed towers are disclosed. The towers may comprise a tower section ( | 02-04-2016 |
20150354534 | METHOD OF STARTING A WIND TURBINE - Methods of starting a wind turbine from a standstill substantially until generator connection, the wind turbine having a rotor with one or more blades, a pitch system for rotating the blades along their longitudinal axes and a generator operationally connected with the rotor. In standstill, the blades are substantially in a feathered position and the generator is not generating electrical power. The methods may comprise measuring the wind speed representative for the wind turbine and measuring the rotor speed of the wind turbine, and when the rotor speed is not equal to zero, determining the tip speed ratio for the wind turbine, and determining the pitch angle of the blades as a function of the tip speed ratio to optimize the torque produced by the blades of the wind turbine rotor. | 12-10-2015 |
20150211494 | ANGULAR POSITIONING SYSTEM FOR A WIND TURBINE - It comprises first and second rotatable elements and driving device for driving them in rotation comprising hydraulic chambers which volume is defined by the relative position of the elements in the plane of rotation and pumps for filling the chambers with fluid to cause their expansion for rotating the elements, and a pump controller for controlling rotation of the elements. The volume of chambers is defined by portions of the first element ( | 07-30-2015 |
20150136006 | FLOATING OFFSHORE WIND TURBINE WITH DAMPING STRUCTURE - An offshore wind turbine comprising a buoyancy structure intended to provide a buoyancy force to support the wind turbine, wherein said buoyancy structure comprises at least one floater tank and a damping structure extending radially outward from the floater tank to damp forces due to heave, pitch or roll. | 05-21-2015 |
20150048620 | PERMANENT MAGNET ROTOR - A permanent magnet rotor comprising a rotor rim and a plurality of permanent magnet modules arranged on the outer or inner circumference of the rotor rim, the permanent magnet modules extending generally along an axial direction and being of substantially constant axial-cross section, and comprising a base adapted to be fixed to the rim of the generator rotor, one or more permanent magnets, and one or more pole pieces, wherein each of the permanent magnets has a circumferential magnetic orientation and is substantially rectangular in axial cross-section and wherein each of the permanent magnets is inclined with respect to the central radial plane of the module. | 02-19-2015 |
20150044045 | OFFSHORE WIND TURBINE - An offshore wind turbine comprising a buoyancy structure intended to provide a buoyancy force to support the wind turbine, wherein said buoyancy structure comprises at least one floater tank which, in use, contains a pressurized gas. | 02-12-2015 |
20140190575 | VALVE INCLUDING A DEVICE FOR IMMOBILIZING A JOURNAL, ENERGY CONVERSION INSTALLATION/FLUID DISTRIBUTION NETWORK INCLUDING SUCH A VALVE AND METHOD OF DEMOUNTING SUCH A VALVE - This valve is integrated into a fluid distribution network and enables selective interruption or authorization of the circulation of a fluid. The valve includes a fluid blocking member driven in rotation by an actuator device of the valve and at least one journal, a hollow body inside which the blocking member is mobile and which defines at least one bore for receiving the journal, and a bearing disposed around each journal and inside the bore of the body enabling support of the journal and guidance thereof in rotation relative to the bore, thereby centering the journal. The valve further includes a device for immobilizing and sealing for maintenance the journal relative to the body of the valve. This immobilization device is disposed on the same side of the bearing as the internal volume of the hollow body and is maneuverable via the bearing to go from a non-clamped first configuration to a clamped second configuration in which it immobilizes the journal in the bore and vice versa. | 07-10-2014 |
20140175908 | METHOD OF REGULATING THE POWER OF AN ENERGY CONVERSION INSTALLATION AND ENERGY CONVERSION INSTALLATION DRIVEN BY SUCH A METHOD - This method makes it possible to regulate the power of an energy conversion installation ( | 06-26-2014 |
20140050587 | POWER-CONVERSION INSTALLATION INCLUDING A HYDRAULIC MACHINE PROVIDED WITH A RUNNER - The invention relates to a Francis runner ( | 02-20-2014 |
20140050529 | WATER-GATE - A water-gate is intended to withstand pressure exerted by a liquid. The water-gate includes an essentially flat shell plate and a plurality of thin cores extending along the length of the shell plate, the thin cores being substantially parallel to one another. Each core is solidly connected to the shell plate and pierced with multiple disjoint holes. According to the disclosure, the water-gate comprises at least one stiffener formed by assembling multiple elements that are aligned along a longitudinal axis of the stiffener and that each extend between the cores without passing through the cores. Each element may be solidly connected to a face of at least one core around one of the holes. | 02-20-2014 |