Class / Patent application number | Description | Number of patent applications / Date published |
416205000 | Adjustable | 41 |
20080304973 | PROPELLER BLADE RETENTION SYSTEM WITH TAPERED ROLLER BEARING CARTRIDGE ASSEMBLIES - A propeller blade mounted with a preload adjacent a propeller blade root retention which increases the moment capacity of the retention for a given pitch diameter, yet permits pitching of the propeller blade about a blade axis in response to a propeller pitch change actuation system. The propeller blade retention assembly includes a tapered roller bearing set having a multiple of tapered roller bearing cartridge assemblies. Each tapered roller bearing cartridge assembly includes a retention cartridge and at least one tapered roller bearing element to facilitate installation and retention during assembly. | 12-11-2008 |
20100215502 | MULTISTAGE WIND TURBINE WITH VARIABLE BLADE DISPLACEMENT - A multiple rotor wind turbine, having variable angular and/or axial displacements between the two or more rotors. The variation in angle and axial displacement between the rotors (and the corresponding turbine blades affixed to said rotors) control the torque characteristics of the turbine at varying wind speeds. | 08-26-2010 |
20100296935 | CENTRIFUGALLY DRIVEN AERODYNAMIC ROTOR BLADE BRAKE ASSEMBLY - An aerodynamic brake assembly for use with an airfoil such as the blade of a wind turbine rotor comprises deployable upper and/or lower spoiler plates incorporated in or attached to the airfoil. The spoiler plates can deploy under the influence of centrifugal forces when the rotating airfoil or rotor blade reaches a pre-determined rotational speed. The aerodynamic brake assembly may be integrated within the airfoil or attached to the tip of the airfoil such that, when not deployed, the upper and lower spoiler plates have a profile that approximately conforms to the profile of the part of the airfoil to which it the brake assembly is attached. Thus in a non-deployed state, the spoiler plates have a non-detrimental effect on the performance of the airfoil, and may even contribute to its aerodynamic lift properties. A weighted arm linked to the spoiler plate mechanism can be held in position electromagnetically or by solenoid, until an electrical signal from a controller causes it to release, leading to deployment of the spoiler plates. Failsafe deployment of the spoiler plates can occur either upon loss of power to the mechanism, or when the centrifugal force associated with an overspeed condition of the rotor overcomes the holding force of the electromagnet or solenoid. | 11-25-2010 |
20110014051 | ROTARY COUPLING - A rotary coupling having a first element and a coaxial second element, the first and second elements being rotatable relative to each other and defining an annular passage between radially facing walls thereof. The coupling has a sealing ring at an end of the annular passage, the sealing ring being mounted to the wall of the first element and rotating relative to the second element, and having an active configuration in which the sealing ring is urged against the wall of the second element to seal the end of the annular passage, and a return configuration in which the sealing ring does not seal the end of the annular passage. A control system is used to apply a variable load to the sealing ring, wherein the sealing ring moves between the active and return configurations in response to variation in the applied load. | 01-20-2011 |
20110033301 | Quick Install Blade Arms for Ceiling Fans - Quick attachable and detachable mounting arms for ceiling fans. A first version has flat headed fasteners initially attached to one end of mounting arms, with key-hole slots in the endshield of the ceiling fan motor. The user raises the mounting arm so that the flat headed fasteners fits through the larger openings in the keyhole slots and then pulls the mounting arm outward until the arm locks in place by the smaller opening portions of the keyhole slots. Rubber type gaskets and washers help lock and hold the mounting arms in place. The flat headed fasteners can also be located on the endshields with the keyhole slots on mounting arms. A second embodiment includes inwardly deformable springably snapable fasteners that can be located on the ends of the mounting arms which can deform inwardly and expand after passing through slots on the endshield of the rotor. Alternatively, the fasteners can be located on the bottom of the endshield with the receiving slots on the ends of the mounting arms. The different versions can include guide posts for allowing only one single fastener to be needed. A third embodiment allows the inwardly bendable snapable fasteners to be removable with screws. | 02-10-2011 |
20110052397 | Stator Blade for a Turbomachine which is Exposable to Axial Throughflow, and also Stator Blade Arrangement for It - A stator blade and a stator blade arrangement for a turbomachine which is exposable to axial throughflow is provided. Each stator blade is retained via a fixed clamping in a circumferential groove. For the fixed clamping, provision is made on one side of the blade root for a shaped piece with a threaded hole into which a tensioning screw, which is supported on the bottom of the circumferential groove, may be screwed. | 03-03-2011 |
20110058946 | FAN AND METHOD FOR OPERATING A FAN - The invention relates to a fan, particularly a radial fan, having a fan hub with a rotational axis. A plurality of fan blades is disposed about the rotational axis for deflecting an air flow. The invention provides that an adjustment device is provided at the fan blades for the rotational speed-dependant adjustment of an air flow. | 03-10-2011 |
20110103958 | WELLS TURBINE HAVING PASSIVE ROTOR BLADE DISPLACEMENT - The invention concerns a Wells turbine, comprising a hub with a plurality of rotor blades having a drop-shaped profile orienting from a profile nose; the rotor blades are attached to the hub in a rotary fashion by means of a foot part such that the rotor blade angle is variable with respect to the plane of rotation, wherein the associated rotational axis intersects the chord for each profile section in a threading point, which is located in a region between the profile nose and the aerodynamic center of the profile; the adjustment of the blade angle is made passively by the equilibrium occurring during the operation of the wells turbine between the aerodynamic torque, acting on the rotor blades, and the centrifugal torque, wherein the average density of the rotor blade is selected to be less than 2700 kg/m | 05-05-2011 |
20110110781 | DEVICE FOR FASTENING A VARIABLE PITCH BLADE - This blade attachment device comprises a shell ( | 05-12-2011 |
20110116932 | MINIATURE WIND TURBINE HAVING VARIABLE BLADE PITCH - A wind turbine rotor having variable blade pitch is provided. According to one embodiment, the wind turbine rotor includes a hub defining a predetermined number of openings, the hub further including a rotatable adjustment layer defining a predetermined number of slots, wherein the slots corresponds to the openings; and one or more blades secured in the hub, each of the one or more blades including a blade root, and a protrusion extending from the blade root, and wherein the protrusion of each of the one or more blades is engaged by a corresponding slot of the adjustment layer, wherein rotation of the adjustment layer translates the protrusions of each of the one or more blades, thereby rotating each of the one or more blades about the longitudinal axis. The rotor may be removably secured to a generator shaft by a spring, allowing easy adjustment of the rotor for educational use. | 05-19-2011 |
20110129345 | PRELOADED PROPELLER BLADE ASSEMBLY - A propeller blade assembly ( | 06-02-2011 |
20120076658 | ATTACHMENT STUD FOR A VARIABLE VANE ASSEMBLY OF A TURBINE COMPRESSOR - An attachment stud for a variable vane assembly is disclosed. The attachment stud may generally include a bottom segment, a middle segment, a top segment and a shoulder segment. The bottom segment may generally have a shape and configuration adapted to be secured to a synchronizing ring of the variable vane assembly. The middle segment may generally have a shape and configuration adapted to receive a rotational attachment device of the variable vane assembly. The shoulder segment may be disposed between the bottom segment and the middle segment. The top segment may generally have a shape and configuration adapted to receive a retaining device configured to rigidly attach the rotational attachment device to the attachment stud. | 03-29-2012 |
20120195761 | WIND GENERATOR OF VERTICAL AXLE WITH INHIBITION OVERSPEED FLAPS - The invention refers to a wind generator of electrical current production with a vertical axle and inhibition over-speed laps. the wind generator is setted on a steady duct on the upper place of which there is a thrust bearing. There are three (internal) laps mounted on the generator and under the thrust bearing. These flaps are totally the same. They are setted in 120 degrees corner among them. Three other laps (external) are fixed on these flaps. The external flaps are constructed with aerodynamic cross section. These laps have special ribs and housings for edge support while a wire rope mounted to the internal of the laps prevents the spreading in case of fracture. According to the invention we have internal and external flaps. Because of the rotation speed increasement the external flaps gradually change place so the incidence angle of the wind changes and the flaps resist to the wind flow keeping the rotation speed steady. | 08-02-2012 |
20120219422 | Rotor blade coupling device and rotor head - A rotor blade coupling device ( | 08-30-2012 |
20120224970 | FLUID PUMP HAVING AT LEAST ONE IMPELLER BLADE AND A SUPPORT DEVICE - The invention relates to a fluid pump comprising at least one impeller blade ( | 09-06-2012 |
20120251325 | TURBOMACHINE ROTOR - A rotor for a turbomachine includes at least one moving blade row including a plurality of moving blades disposed adjacent to one another in a circumferential direction with respect to an axis of rotation. Each one of the plurality of moving blades includes a blade leaf and a blade root having an outer face, the outer face of the blade root including a blade root curved end wall contour adjacent the blade leaf in the circumferential direction. The blade root curved end wall contour has a concave curvature in an axial sectional plane of the rotor. At least one rotor shaft includes a reception slot for a respective one of the at least one moving blade row extending in the circumferential direction. Each of the plurality of moving blades is inserted into the reception slot via a respective blade root. | 10-04-2012 |
20120263598 | Pitch bearing - A pitch bearing is described for connecting a blade of a wind turbine to a hub of the wind turbine to allow a rotation of the blade about a longitudinal axis, which pitch bearing includes a console housing arranged at a conjunction of the hub and an end section of the blade, which console housing encloses a plurality of planar sliding surfaces arranged around an opening in the hub. Further described is a wind turbine including at least one blade attached to a hub via such pitch bearing. A method of performing maintenance on a pitch bearing is described where a part of the pitch bearing is removed while leaving the blade and the remaining parts of the pitch bearing in place; and the part is replaced after a maintenance step has been carried out. | 10-18-2012 |
20120282103 | ROTOR ASSEMBLY - A rotor assembly for helicopter vehicles for providing an easy way of controlling pitch, roll and lift of the aircraft by respective servo actuators. The rotor assembly has a rotor shaft, and at least two rotor blades, a rotor head, and a non-rotating swash plate. The rotor assembly also includes a pitch hinge for each rotor blade connecting each rotor blade to the rotor head. The rotor assembly also includes a guide member for each rotor blade. As the rotor assembly rotates, the guide members are in substantial contact with an upper surface of the non-rotating swash plate. Forces such as magnetic and/or an aerodynamic forces are applied on the rotor blades and are sufficiently strong to create a valve effect on the pitch hinge, which in turn maintains contact between the guide members and the non-rotating swash plate. | 11-08-2012 |
20120328443 | SYSTEMS AND METHODS FOR ASSEMBLING A WIND TURBINE WITH A PITCH ASSEMBLY - A rotor blade for a rotor of a wind turbine is provided. The rotor blade comprises a blade root portion configured to transfer a load acting on the rotor blade to the rotor through a blade coupling assembly of the rotor, wherein the blade coupling assembly comprises a rotatable hub and a pitch bearing, and at least one reinforcement element disposed in the blade root portion of the rotor blade for stiffening the blade coupling assembly of the rotor. | 12-27-2012 |
20130004318 | BALL BEARING RETENTION FOR PROPELLER BLADE AND METHOD OF ASSEMBLY - A propeller assembly includes a hub and a blade installed in the hub. A bearing arrangement retains the blade in the hub and includes an outer bearing race at the hub including a first outer race radius and a second outer race radius different from the first outer race radius, connected by an outer relief The bearing arrangement further includes an inner bearing race at the blade including a first inner race radius and a second inner race radius different from the first inner race radius, connected by an inner relief A plurality of bearing balls are installed between the inner race and outer race thereby retaining the blade at the hub. | 01-03-2013 |
20130052023 | PITCH BEARING FOR WIND TURBINE ROTOR BLADES - A pitch bearing for a wind turbine rotor includes a rotor hub and at least one rotor blade, the pitch bearing includes a cylindrical inner bearing ring connectable to a rotor blade of the wind turbine rotor, a cylindrical outer bearing ring connectable to the rotor hub of the wind turbine rotor and an annular reinforcement section for reinforcing the outer bearing ring. The annular reinforcement section adjoins the cylindrical outer bearing ring at its radial outer surface. | 02-28-2013 |
20130089426 | Rotor for Wind Power Installation - The proposed device relates to the field of wind power engineering and can be used as a rotor in wind power installations with a vertical axis of rotation. The rotor includes a central hub, a bearing ring, including a plurality of segments, and blades vertically mounted on the ring in two tiers. The ring is connected to the hub by flexible tensioning members supported by fastening assemblies, secured on the hub and vertically spaced apart. The flexible tensioning members connected to the upper fastening assemblies are length-adjustable. The flexible tensioning members connected to the lower fastening assemblies are equipped with turnbuckles. The fastening assemblies are equipped with rotatable plates having horizontal pivot pins, which are vertically spaced apart. The proposed device makes it possible to improve the balancing of rotor. | 04-11-2013 |
20130142656 | Body Cooling System - A system for cooling a user's body is provided. The body cooling system provides a rigid head covering, a ventilation component and an internal deflector component. The ventilation component may be integrated into or be removably attached to the rigid head covering. The internal deflector component directs air flow from the ventilation component along the user's body. | 06-06-2013 |
20130209260 | GAS TURBINE ENGINE ROTOR BALANCING - A method of balancing a gas turbine engine rotor comprises the step of obtaining a rotor disc with a circumferential array of balance tabs projecting from a peripheral rim of the disc. Stress shielding scallops are defined in the rotor disc between the tabs. The balancing is achieved by removing material from at least one of the tabs. | 08-15-2013 |
20130280078 | Wind Turbine Blade Pitch Redundant Safety Arrangement - A wind turbine includes a blade position adjustment system providing for continued wind turbine blade repositioning operation even after the occurrence of certain faults. The system includes a plurality of electrically operable motors, each of which is interconnected with one of the wind turbine blades to reposition that wind turbine blade and modify the blade pitch. Each motor includes two or more sets of electrically isolated windings, and a power supply is separately interconnected with each of the electrically isolated winding sets to provide for continued repositioning of each blade upon occurrence of a fault, such as voltage or current deterioration, in one of the winding sets. | 10-24-2013 |
20130336796 | MODIFIED TAPER ROLLER EDGE - A tapered roller bearing element includes a first end and a second end, the second end having a second end radius. There is an apex ring between the two ends having an apex ring radius. There is also a base cone extending between the first end and the apex ring, the base cone tapering outwardly at a base cone angle. In addition, a relief cone extends between the apex ring and the second end, the relief cone tapers inwardly at a relief cone angle, and relief cone angle is larger than the base cone angle. | 12-19-2013 |
20140010660 | AXIAL-RADIAL ROLLING CONTACT BEARING, IN PARTICULAR FOR SUPPORTING ROTOR BLADES ON A WIND TURBINE - The invention relates to an axial-radial rolling contact bearing, in particular for supporting rotor blades ( | 01-09-2014 |
20140079555 | WIND TURBINE - The invention relates to a wind turbine, comprising a blade, a hub and a bearing for mounting the blade to the hub comprising an inner bearing ring and an outer bearing ring, wherein the blade is connected to the inner bearing ring or the outer bearing ring, wherein the blade comprises multiple cross holes and longitudinal holes for receiving cross bolts and longitudinal bolts respectively in its wall in a connection area where the blade is connected to the inner bearing ring or the outer bearing ring and wherein at least one longitudinal bolt is disposed within the blade wall in thickness direction of the wall. | 03-20-2014 |
20140119926 | WIND TURBINE ROTOR BLADE ASSEMBLY WITH A RING INSERT IN THE BLADE ROOT - A rotor blade assembly for a wind turbine includes a ring insert in the blade root section. The blade root section has a span-wise end portion defined by an inner circumferential component and an outer circumferential component, with a radial gap between the components. The ring insert is disposed in the radial gap and is bonded to the inner and outer circumferential components. The ring insert has an inner circumferential surface and an outer circumferential surface, wherein at least one of the inner or outer circumferential surfaces has a radially varying cross-sectional profile that increases bonding surface contact area between the inner or outer circumferential surface and the respective circumferential component of the blade root section as compared to a constant radius cross-sectional profile. | 05-01-2014 |
20140286778 | UNIT FOR ROTATING CABLE SPACING PLATES IN A WIND TURBINE TOWER - A wind turbine having a wind turbine tower with a nacelle provided on the top to which a rotor hub with one or more wind turbine blades is rotatable mounted. A cable twisting system is arranged inside the wind turbine tower and suspended from the bottom of the nacelle. The cable twisting system comprises a number of cable spacing plates having a number of guiding means for guiding the electrical cables from the nacelle to the bottom of the wind turbine tower. A first and second element having engaging fingers configured to be brought into contact with each other are coupled to two adjacent cable spacing plates. The first element rotates relative to the second element when the nacelle is yawing, bringing the fingers into contact with each other. The two elements then rotate together as the nacelle continues to yaw in the same direction. | 09-25-2014 |
20140286779 | AIR FENCE FOR FAN BLADE - A fan comprises a rotatable hub, a plurality of fan blades coupled with the hub, and a plurality of air fences coupled with the fan blades. Each fan blade has a free end and an opposite end secured to the hub. The air fences are positioned at selected locations along the length of the fan blades, between the ends of the fan blades. Each air fence includes a fin, which may extend upwardly or downwardly from the fan blade. Each air fence may be formed of a resilient material and may be configured to allow the air fence to be snapped onto a fan blade. Each air fence may define an opening through which a fan blade may be inserted. One or more surfaces of the air fence may be contoured to complement a surface contour of an airfoil shaped fan blade. | 09-25-2014 |
20150050153 | SHIP DRIVE - A ship drive having a drive machine, a transmission, a propeller shaft that is driven by the transmission and a mounting arrangement by which the ship drive can be secured to a hull of a ship. The drive machine and the transmission are connected to one another by a connecting flange and are arranged inside the hull of the ship. A first mounting point, which is designed as a pivot bearing relative to the rotational axis of the propeller shaft, is arranged in such a manner that a bending moment, produced by the propeller thrust and by the weight of the drive machine and the transmission, is optimized at the connecting flange. | 02-19-2015 |
20150110631 | IMPROVEMENTS RELATING TO WIND TURBINES - A wind turbine is described which comprises a tower, a nacelle mounted to the top of the tower, and a rotor mounted to the nacelle. The rotor comprises two or more blades mounted to a central hub. The hub supports two or more annular pitch bearings associated respectively with the two or more blades. Each pitch bearing defines a bearing plane inclined at a first angle with respect to a horizontal plane when the respective blade is oriented in a downwardly direction in alignment with the tower. Each pitch bearing is spanned by a hub plate; and a work platform integral with or mounted to the hub plate lies generally in a plane at a second angle to the horizontal plane when the respective blade is oriented in a downwardly direction in alignment with the tower, which second angle is less than the first angle. The work platform provides a substantially horizontal platform for use by maintenance personnel when installing or servicing components in and around the hub. | 04-23-2015 |
20150139809 | ROLLER BEARING ARRANGEMENT FOR MOUNTING PARTS OF A WIND POWER PLANT AND A WIND POWER PLANT HAVING A BLADE BEARING DESIGNED IN SUCH A MANNER - The invention relates to a rolling bearing arrangement ( | 05-21-2015 |
20150337796 | A Turbine for a Flow Power Plant - The invention relates to a turbine, especially for a flow power plant, comprising the following features:
| 11-26-2015 |
20150354378 | FAN BLADE POSITIONING AND SUPPORT SYSTEM FOR VARIABLE PITCH, SPHERICAL TIP FAN BLADE ENGINES - The present disclosure provides a blade positioning and support system for a gas turbine engine including a blade, the blade having a root and a tip, with the root having a surface oriented away from the tip, the surface having a forward end and an aft end, the forward end projecting farther away from the tip than the aft end. Further, the present disclosure provides a blade receiver, the blade receiver having a face and a facet, with the face being oriented away from the facet, the face having a forward end and an aft end, the aft end projecting farther away from the facet than the forward end. | 12-10-2015 |
416206000 | Spring biased detent | 2 |
20100284813 | LOCKING PLATE FAST FASTENING CEILING FAN BLADES - A locking plate fast fastening ceiling fan blades includes a clamp plate. A chute is formed on the clamp plate, where a pushing board is contained. The clamp plate in the chute is provided with a first wedge unit and a thru hole. Thus, when a set of blades is installed on a blade rack of a ceiling fan, only the blade is set around several pillars on the blade rack, the clamp plate of fixing plate is set to locate on the pillar, and a pillar is made to pass through the thru hole. The pushing board of fixing plate is shifted toward the pillar, making the front end of pushing board stay close to the side of pillar and the first wedge unit of clamp plate stay close to the terminal of pushing board for fast and exact completion of fixing of the blade onto the blade rack. | 11-11-2010 |
20130315742 | VENTILATOR WITH REVERSIBLE SYSTEM FOR COOLING AND CLEANING RADIATORS - A ventilator with a reversible system for cooling and cleaning radiators can reverse the blades ( | 11-28-2013 |
416207000 | Blade releasably clamped | 2 |
20120321475 | SYSTEM FOR ADJUSTING CHARACTERISTICS OF A FAN - An adjustable fan with a rotary hub capable of supporting rotary blades in a plurality of orientations relative to a rotational axis of the fan. | 12-20-2012 |
20140010661 | WIND TURBINE BLADE BEARING REMOVAL APPARATUS AND METHOD - The invention relates to a wind turbine blade bearing removal apparatus and method for facilitating the change-over of the blade root bearing assembly ( | 01-09-2014 |
416209000 | Thimble or sleeve fixed on impeller blade | 1 |
20170233062 | PROPELLER AND AERIAL VEHICLE, CONTAINING LOCKING DEVICE | 08-17-2017 |