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Rotor Blades

Rotor Blades-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Method of mounting rotor blades on a rotor disk, and clamping device for performing such ...
Siemens Aktiengesellschaft
December 07, 2017 - N°20170350262

A method for mounting rotor blades on a rotor disk along a predetermined pitch circle diameter in such a way that adjacent rotor blades, when properly mounted on the rotor disk and in the cold state, are clamped against each other with a predetermined preload. A clamping device which performs such a method has a plurality of clamping elements which ...
System for a low swirl low pressure turbine
General Electric Company
November 30, 2017 - N°20170342839

The low pressure turbine includes a rotor, an outer casing, a plurality of stages of rotor blades, and a plurality of stages of stator vanes. The rotor includes a longitudinal centerline. The outer casing circumscribes the rotor. The plurality of stages of rotor blades is disposed on a radially outer surface of the rotor in a serial flow arrangement. The ...
Compressor end-wall treatment having a bent profile
General Electric Company
November 16, 2017 - N°20170328377

A compressor is provided including a compressor end-wall having a casing and a hub. The compressor further includes at least one set of rotor blades, one set of stator blades, and a plurality of end-wall treatments spaced apart from each other, formed in an interior surface of at least one of the casing and hub, and facing a tip of ...
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Rotor Blades Patent Applications
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  • 113+ full patent PDF documents of Rotor Blades-related inventions.
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Cooling structure for turbine, and gas turbine
Mitsubishi Heavy Industries, Ltd.
November 09, 2017 - N°20170321555

A cooling structure for a turbine is configured such that: a plurality of disks rotating integrally with blades are arranged along a rotational axis; and the disks have formed therein disk holes arranged in a circumferential direction to supply cooling air for cooling the rotor blades to downstream disks. At least one of the disk holes is set such that, ...
Rotor assembly with high lock-number blades
Bell Helicopter Textron Inc.
November 09, 2017 - N°20170320567

An aircraft rotor assembly has a central hub and a plurality of rotor blades coupled to the hub for rotation with the hub about an axis, each blade having a lock number of approximately 5 or greater. A lead-lag pivot for each blade is formed by a flexure coupling the associated blade to the hub. Each pivot is a radial distance ...
Flight control system for a rotary wing aircraft
Bell Helicopter Textron Inc.
November 02, 2017 - N°20170315563

A rotary wing aircraft includes an airframe including an extending tail. The airframe includes a longitudinal axis that extends through the extending tail. The rotary wing aircraft also includes a main rotor assembly including at least one rotor hub supporting a plurality of rotor blades configured and disposed to rotate about a main rotor axis, at least one elevator arranged ...
Rotor Blades Patent Pack
Download 113+ patent application PDFs
Rotor Blades Patent Applications
Download 113+ Rotor Blades-related PDFs
For professional research & prior art discovery
inventor
  • 113+ full patent PDF documents of Rotor Blades-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Polyurethane-based protective coatings for rotor blades
Rolls-royce Deutschland Ltd & Co Kg
October 26, 2017 - N°20170306177

A second component ii) comprising a high molecular weight hydroxyl-functional compound having two terminal (α−ω) hydroxyl groups and a molecular weight of at least 250 g/mol and comprising one or more units selected from oxyalkylene units and polyoxyalkylene units and wherein the isocyanate-functional component is an isocyanate prepolymer of the general formula nco—z—...
Gas turbine engine for an aircraft
Rolls-royce Deutschland Ltd & Co Kg
October 19, 2017 - N°20170298822

A gas turbine engine for an aircraft includes a compressor, a combustion chamber, and a turbine having at least one stator, and at least one rotor. Each stator and rotor is formed by a plurality of blades, a fluid channel is formed between two consecutive blades, and each blade has two opposing surfaces. The compressor is in fluid communication with ...
Rotary wing aircraft
Rolls-royce Deutschland Ltd & Co Kg
October 19, 2017 - N°20170297692

A rotary wing aircraft includes an airframe, one or more engines supported by the airframe, and a plurality of rotor blades operatively connected to the one or more engines. Each of the plurality of rotor blades includes a rotor lift-to-drag (l/de) ratio greater than 9 at airspeeds between about 150 ktas and about 210 ktas, and the rotary wing aircraft includes an ...
Electric propulsion system for a rotary wing aircraft
Rolls-royce Deutschland Ltd & Co Kg
October 19, 2017 - N°20170297689

A rotary wing aircraft includes an airframe, a stationary mast fixedly engaged to the airframe and extending along a first axis, and an electric motor. The electric motor includes a stator assembly engaged to the mast and a rotor assembly disposed radially outward from the stator assembly and configured to rotate with respect to the stator assembly. A plurality of ...
Integrated main rotor hub and shaft
Rolls-royce Deutschland Ltd & Co Kg
October 19, 2017 - N°20170297688

A main rotor system for a rotary wing aircraft is provided including a lower rotor hub to which lower rotor blades are attachable. The lower rotor hub rotates about an axis in a first direction. A hollow rotor shaft extends through the lower rotor hub. The first end of the rotor shaft couples to a component of the rotary wing ...
Impeller for centrifugal blasting wheel
Rolls-royce Deutschland Ltd & Co Kg
October 19, 2017 - N°20170297167

An impeller for a centrifugal blasting wheel includes a base plate, a support collar, and a plurality of spaced rotor blades interconnecting the base plate and support collar. A step is formed at the inner end of the collar and the outer ends of the rotor blades which causes blasting shot to be discharged to the throwing blades of the ...
New composite article
Basf Se
October 12, 2017 - N°20170291390

The present invention relates to a composite article comprising at least two layers (a) of component a) and at least one layer (b1) of component b). The respective layers (a) and (b1) are alternately linked together. The component a) has a compressive modulus of at least 10 mpa and can, therefore, be considered as a comparably rigid component, which can be ...
Rotor Blades Patent Pack
Download 113+ patent application PDFs
Rotor Blades Patent Applications
Download 113+ Rotor Blades-related PDFs
For professional research & prior art discovery
inventor
  • 113+ full patent PDF documents of Rotor Blades-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Turbine rotor assembly, turbine, and rotor blade
Mitsubishi Hitachi Power Systems, Ltd.
October 05, 2017 - N°20170284209

A turbine rotor assembly includes a rotor shaft and rotor blades. The rotor shaft includes two protrusions, two bearing surfaces, two first facing surfaces, and two second facing surfaces positioned on the outer side of the first facing surfaces. The blade root section of each of the rotor blades includes two contact surfaces which are contactable with the two bearing ...
Profiled protective tape for rotor blades of wind turbine generators
Mitsubishi Hitachi Power Systems, Ltd.
October 05, 2017 - N°20170283659

Also provided are processes for making profiled tapes and methods for applying the tapes to rotor blades and blades containing protective tapes.
Differential pre-cone rotary wing arrangement and aircraft
Sikorsky Aircraft Corporation
October 05, 2017 - N°20170283049

A differential pre-cone rotary wing arrangement includes a first rotor assembly having a first set of rotor blades rotatable about an axis, the first set of rotor blades having a first pre-cone angle, and a second rotor assembly having a second set of rotor blades rotatable about the axis, the second set of rotor blades having a second pre-cone angle, ...
Rotor, axial compressor, installation method
Siemens Aktiengesellschaft
September 21, 2017 - N°20170268536

A rotor of a multi-staged axial compressor which extends along an axis of rotation. The rotor has a shaft which has rotor blade slots. Rotor blades of the rotor are arranged next to one another in the circumferential direction and are each secured to the rotor blade slots by a blade root to form a respective rotor blade stage. At ...
Method for the individual pitch control of rotor blades of a wind turbine, acceleration sensor ...
Fos4x Gmbh
September 21, 2017 - N°20170268486

The invention relates to a method for the individual pitch control of the rotor blades of a wind turbine. The method comprises: measuring an acceleration by means of an acceleration sensor in a rotor blade of the wind turbine; high-pass filtering of a signal of the acceleration sensor in order to determine a time-variant variable; and setting the pitch of ...
Rotor blade for wind turbines
Nordex Energy Gmbh
September 21, 2017 - N°20170268482

The invention relates to a segmented rotor blade for wind turbines, the segmented rotor blade having spar elements which can be telescoped into one another. According to the invention, in order to screw the telescoped spar elements together, one of the bushes is designed as a slide bush to achieve a better connection of the segmented rotor blades.
Methods for processing bonded dual alloy rotors including differential heat treatment processes
Honeywell International Inc.
September 21, 2017 - N°20170268089

Methods for processing bonded dual alloy rotors are provided. In one embodiment, the method includes obtaining a bonded dual alloy rotor including rotor blades bonded to a hub disk. The rotor blades and hub disk are composed of different alloys. A minimum processing temperature (tdisk_process_min) for the hub disk and a maximum critical temperature for the rotor blades (...
Rotor ice protection system
Sikorsky Aircraft Corporation
September 21, 2017 - N°20170267361

A rotor ice protection system (rips) apparatus for an aircraft to heat aircraft rotor blades is provided. The rips apparatus includes circuitry disposed to transmit electrical loads associated with rips operations, an indicator unit disposed to alert a pilot of the aircraft to a rips condition indicating an operating status of the rips operations, a controller configured to actuate the ...
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