Patent application number | Description | Published |
20100074752 | ROTOR WITH IMPROVED BALANCING FEATURES - A rotor assembly for a gas turbine engine including a circumferential array of regularly spaced apart features provided on the disk which are each configured for receiving a balancing weight. The circumferential array of features has an angular orientation relative to the circumferential array of blades such that the features are each located at an at least substantially same offset angle from a stacking line of a respective adjacent blade. | 03-25-2010 |
20130071245 | ROTOR WITH IMPROVED BALANCING FEATURES - A rotor assembly for a gas turbine engine including a circumferential array of regularly spaced apart features provided on the disk which are each configured for receiving a balancing weight. The circumferential array of features has an angular orientation relative to the circumferential array of blades such that the features are each located at an at least substantially same offset angle from a stacking line of a respective adjacent blade. | 03-21-2013 |
20130133336 | SUPPORT FOR ELECTRIC MACHINE IN A TURBINE ENGINE - Devices and methods for supporting an accessory ( | 05-30-2013 |
20130177410 | CASING FOR AN AIRCRAFT TURBOFAN BYPASS ENGINE - A casing for an aircraft turbofan bypass engine includes an outer ring, an inner hub and a plurality of struts radially extending therebetween. An annular portion of an engine core casing having an outer wall and an inner wall, is disposed between the outer ring and inner hub, forming an annular splitter supporting an upstream splitter tip structure. The annular splitter further includes an intermediate wall disposed in the annular splitter fixed to the outer wall and the struts, to distribute loads from the annular splitter box to the struts. | 07-11-2013 |
20130205800 | VANE ASSEMBLIES FOR GAS TURBINE ENGINES - Vane assemblies for gas turbine engines and methods for assembling vane assemblies are disclosed. The vane assemblies may include at least one shroud having at least one vane-receiving portion, at least one vane having at least one end portion received in the vane-receiving portion, and at least one sealing member having an uncompressed cross-section that is substantially circular. The sealing member(s) are disposed between and in contact with the end portion of the vane and the vane-receiving portion of the shroud. | 08-15-2013 |
20130259664 | STRUCTURAL CASE FOR AIRCRAFT GAS TURBINE ENGINE - The structural case has an annular body having a central axis and including a plurality of boss sections circumferentially interspaced from one another around the axis by a plurality of arcuate panel sections, each panel section having: two parallel arcuate structural flange members being axially interspaced from one another; a sheet metal wall extending between and interconnecting the two flange members; and at least one rib having an edge welded to the sheet-metal wall. | 10-03-2013 |
20140026591 | AXIAL RETENTION FOR FASTENERS IN FAN JOINT - In a gas turbine engine, a fan rotor and a compressor rotor are connected to a joint which is attached to a shaft. The fan rotor is connected to the joint by a plurality of fasteners extending through mounting openings in the joint and through apertures in the fan rotor. A standard retaining ring is attached to the joint to cover a portion of an enlarged head of each of the respective fasteners in order to prevent removal of the respective fasteners from the mounting openings in the joint before the respective fasteners are connected to the fan rotor. | 01-30-2014 |
20140165533 | GAS TURBINE ENGINE MOUNTING RING - A casing for an aircraft engine includes an outer ring and an inner hub defining an airflow passage therebetween, the outer ring having an axis defining an axial direction; a plurality of struts arranged in a circumferential array and extending radially from the inner hub to the outer ring to mount the inner hub to the outer ring; wherein the outer ring is defined by a double skin including an axially-extending annular outer skin of sheet metal concentrically surrounding and radially-spaced from an annular inner skin of sheet metal, the outer and inner skins generally parallel to one another, an annular front end ring and an annular rear end ring welded or brazed to the outer and inner skins adjacent respective front and rear edges of the skins to define an annular cavity between them, and the outer ring further comprising a plurality of circumferentially spaced axially-extending ribs interconnecting the outer and inner skins to reinforce the double skins. | 06-19-2014 |
20150176427 | POST FBO WINDMILLING BUMPER - A bearing arrangement rotatably supports a shaft of an aircraft engine. The bearing arrangement comprises a bearing having rolling elements disposed between inner and outer races. The inner race is affixed to the shaft. A decoupler normally structurally couples the outer race of the bearing to a stator structure of the engine. The decoupler is configured to release the bearing from the stator structure when subject to a predetermined critical load. A bumper is mounted to the stator structure and encircles the bearing. The bumper has a radially inwardly facing surface disposed in close proximity to a radially outer surface of the outer race of the bearing and defines therewith a radial gap to accommodate and constrain an orbiting motion of the rotor about the central axis of the engine after decoupling at the bearing. The bumper further has an axially forwardly facing surface which is axially spaced by a predetermined axial fore gap from a first flange projecting radially outwardly from a front end portion of the outer race of the bearing. The first flange of the outer race is axially trapped between the stator structure and the bumper. After decoupling, the bearing is free to axially and radially move within the radial gap and the axial fore gap. | 06-25-2015 |
20150211540 | BLEED VALVE - A bleed valve having a piston with a sealing member, the piston being displaceable between a first position to seal an aperture of a fluid conduit and an opposed second position spaced apart from the aperture to allow the working fluid therethrough. The bleed valve also has a guiding assembly with at least one guide wheel mounted to the piston and being displaceable therewith along a guide rail. The guide wheel has a guide groove extending inwardly from an outer rolling surface. The guide rail has a rail surface with a guide protrusion. The guide groove and the guide protrusion are complementary and in rolling contact with one another. The bleed valve also has a displacement mechanism for displacing the piston between the first and second positions. A compressor with a bleed valve and method for controlling bleeding of a working fluid are also discussed. | 07-30-2015 |
Patent application number | Description | Published |
20100008207 | Method and Apparatus for Optical Power Transfer Control - A method and apparatus involve: supporting an optical part for movement in relation to a first path of travel of radiation; moving the part successively to first and second positions in which radiation arriving along the first path of travel passes respectively through first and second sections of the part that provide respective different levels of refraction, the first and second sections causing radiation to thereafter travel along respective second and third paths of travel; and receiving at an output first and second portions of radiation respectively propagating along the second and third paths of travel, the first and second portions containing different amounts of optical energy. | 01-14-2010 |
20100226011 | Method and Apparatus for Accurate Imaging with an Extended Depth of Field - A method and apparatus involve using optics to direct radiation from a scene along an optical axis, the optics having a chromatic dispersion that is a function of a characteristic spectral signature for the scene so as to produce a chromatic blur that, for an extended depth-of-field region, is substantially spatially constant along the optical axis. A different method involves: identifying for a characteristic scene a spectral response curve; determining a plurality of different wavelength nodes dividing the area under the spectral response curve into a plurality of substantially equal segments; generating a mapping relationship that maps each of the wavelength nodes to a respective one of a plurality of focal points spaced substantially equally along the optical axis; and configuring the optical system as a function of the mapping relationship. | 09-09-2010 |
20110128620 | METHOD AND APPARATUS FOR PROVIDING A SPLIT FIELD OF VIEW IN AN OPTICAL SIGHT - A method and apparatus involve: admitting through objective optics of an optical sight a beam of radiation representing a scene; generating two different images of the scene; supplying the images to respective portions of a field of view at a viewing section; and superimposing a respective reticle onto each image. According to a different aspect a method and apparatus involve: causing two beams of radiation within an optical sight that represent different images of a scene to approach a reflective section in different directions, the reflective section causing a portion of each beam to reach a respective portion of a field of view at a viewing section; and superimposing a respective reticle onto each beam portion. | 06-02-2011 |
20140118604 | MULTISPECTRAL IMAGING CAMERA - One embodiment disclosed is an imaging system that includes a first optical component configured to receive electromagnetic energy associated with an image of an object. The system also includes a second optical component configured to split and diffract the received electromagnetic energy into a plurality of beams of different wavelengths of electromagnetic energy. The system also includes an imaging array configured to receive the plurality of beams and to selectively attenuate one or more of the plurality of beams. The system also includes an imaging detector configured to receive and capture the one or more of the plurality of beams after the beams have been selectively attenuated and recombined and re-focused into a spectrally altered version of the image. | 05-01-2014 |
20150156394 | MULTISPECTRAL CAMERA USING ZERO-MODE CHANNEL - A multispectral imaging system and method in which the zero-mode channel is used to provide imaging of any of a variety of optical properties. In one example an imaging method includes spectrally dispersing received electromagnetic radiation into its spectral components with a dispersive element to produce spectrally dispersed electromagnetic radiation, transmitting the electromagnetic radiation through the dispersive element to produce non-dispersed electromagnetic radiation corresponding to a zero order diffraction mode of the dispersive element, imaging the non-dispersed electromagnetic radiation to produce a zero-mode image, and simultaneously imaging the spectrally dispersed electromagnetic radiation to produce a spectral image. | 06-04-2015 |
Patent application number | Description | Published |
20120018560 | Brush cutter - A cutting tooth having a blade-like cutting section and a mounting section extending down from the bottom of the cutting section. The mounting section is narrower and shorter than the cutting section, and generally centered with respect to the cutting section. The mounting section has laterally extending flanges spaced from the cutting section. At least a quarter of the cutting section extends past the front of the mounting section and terminating in a cutting edge. | 01-26-2012 |
20120067188 | BRUSH CUTTER - A rotary cutter for a brush cutter. The cutter has a rotatable cylindrical drum with a plurality of flat, annular, collars mounted on the drum. The collars are fastened to the drum by their inner circular edge, are equally spaced apart on the drum, and extend transverse to the rotational axis of the drum. A cutting tooth mounting block is mounted between each adjacent pair of collars, the block located at the outer edge of the collars and spaced above the surface of the drum to provide a gap for passing chips and residue. The mounting block carries a detachable cutting tooth, the tooth extending forwardly generally tangentially from the block and terminating in a cutting edge above the collars. | 03-22-2012 |
20140027551 | Brush Cutter - A cutting tooth having a blade-like cutting section with opposed top and bottom surfaces, opposed front and rear ends defining a length therebetween, and opposed sides defining a width therebetween, a mounting section extending down from the bottom surface of the cutting section with at least a top portion of the mounting section adjacent the cutting section defining a width smaller than that of the cutting section, the mounting section having laterally extending retaining members spaced from the cutting section and adapted to be retained in a mounting block, at least a quarter of the length of the cutting section extending past a front of the mounting section, with the front end of the cutting section terminating in a cutting edge. | 01-30-2014 |
Patent application number | Description | Published |
20110042499 | Wear liner for a brush cutter - A wear liner for use with a brush cutter, the cutter having a cylindrical, rotatable, cutting drum carrying cutting teeth and a cover at least partially covering the drum to limit dispersal of cut material. The liner comprises a sheet of material which can be shaped to fit against the inner surface of the cover. The liner has holes on its sides for use in detachably connecting the liner with fastening means to the cover against the cover's inner surface. The liner has protective means mounted on its inner surface adjacent each hole to protect part of the fastening means located adjacent the inner surface of the liner, when the liner is mounted to the cover and the fastening means extend through the opening, from wear by material thrown by the cutter during its operation. | 02-24-2011 |
20120018560 | Brush cutter - A cutting tooth having a blade-like cutting section and a mounting section extending down from the bottom of the cutting section. The mounting section is narrower and shorter than the cutting section, and generally centered with respect to the cutting section. The mounting section has laterally extending flanges spaced from the cutting section. At least a quarter of the cutting section extends past the front of the mounting section and terminating in a cutting edge. | 01-26-2012 |
20120067188 | BRUSH CUTTER - A rotary cutter for a brush cutter. The cutter has a rotatable cylindrical drum with a plurality of flat, annular, collars mounted on the drum. The collars are fastened to the drum by their inner circular edge, are equally spaced apart on the drum, and extend transverse to the rotational axis of the drum. A cutting tooth mounting block is mounted between each adjacent pair of collars, the block located at the outer edge of the collars and spaced above the surface of the drum to provide a gap for passing chips and residue. The mounting block carries a detachable cutting tooth, the tooth extending forwardly generally tangentially from the block and terminating in a cutting edge above the collars. | 03-22-2012 |
20140027551 | Brush Cutter - A cutting tooth having a blade-like cutting section with opposed top and bottom surfaces, opposed front and rear ends defining a length therebetween, and opposed sides defining a width therebetween, a mounting section extending down from the bottom surface of the cutting section with at least a top portion of the mounting section adjacent the cutting section defining a width smaller than that of the cutting section, the mounting section having laterally extending retaining members spaced from the cutting section and adapted to be retained in a mounting block, at least a quarter of the length of the cutting section extending past a front of the mounting section, with the front end of the cutting section terminating in a cutting edge. | 01-30-2014 |