Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8186961 | Blade preloading system A removable fan blade of a turbofan engine includes a blade root at one end thereof. A rotor disk has a retention slot having dimensions corresponding for receiving the root of the fan blade in the slot. An elongated resilient member extends within the retention slo... | 05/29/2012 |
| 8142161 | Replaceable staking insert A rotating assembly. The rotating assembly may include a wheel, a slot positioned about the wheel with the slot having a staking recess positioned therein, a wheel attachment positioned within the slot, and a staking insert positioned within the staking recess. The ... | 03/27/2012 |
| 8128374 | Securing element for fastening rotor blades A securing element for securing the position of moving blades in slots, running at least mainly in the axial direction, of a rotor parent body of a turbomachine rotor is described, comprising a plate-shaped parent body, wherein the parent body has an approximately c... | 03/06/2012 |
| 8105041 | Arrangement for axially securing rotating blades in a rotor, sealing element for such an arrangement, and use of such an arrangement An arrangement is presented for axially securing rotating blades in a rotor, having a shaft collar on whose external circumference rotating blade securing grooves which extend in the axial direction of the rotor are provided. At one end side face of the shaft a proj... | 01/31/2012 |
| 8096776 | Turbine blade assembly A turbine blade assembly, in particular of a gas turbine, is provided. The turbine blade assembly includes a turbine disc with rotor blades inserted into notches of the turbine disc and locking plates that are placed inside circular grooves with rims in the turbine ... | 01/17/2012 |
| 7938626 | Shim for a turbojet blade A shim for a turbomachine blade is disclosed. The shim includes two branches which wrap around flanks of a blade root, and two tabs. Each of the tabs extend from one end of a respective one of the two branches. The tabs are folded towards each other and are intercon... | 05/10/2011 |
| 7806662 | Blade retention system for use in a gas turbine engine The blade retention system comprises an annular sealing plate and a plurality of spaced-apart blade retention tabs having opposite first and second ends and a radially-orientated corrugated profile. The first ends of the tabs are connected to a first side face of th... | 10/05/2010 |
| 7780419 | Replaceable leading edge insert for an IBR A compressor blade for a gas turbine engine that includes a composite leading edge insert attached to a titanium blade by a row of fastener pins along an aft edge of the insert to prevent unzipping. Each insert is also secured by an electrochemically disbondable com... | 08/24/2010 |
| 7628589 | Turbo-engine and rotor for a turbo-engine The invention relates to a rotor for a non-positive-displacement machine, particularly a rotor for a compressor of a gas turbine, on which at least one shaft collar with an outer periphery and with two radially extending faces are placed. The rotor also comprises a ... | 12/08/2009 |
| 7566201 | Turbine seal plate locking system A seal plate assembly is provided in a rotor disc for a turbine engine. The seal plate assembly includes a radially extending flange on the disc and an annular groove defined between a radial surface on the flange and a face of the disc. An annular outer surface ext... | 07/28/2009 |
| 7540714 | Device for blocking a ring for axially retaining a blade, associated rotor disk and retaining ring, and rotor and aircraft engine comprising them A device for rotationally blocking a retaining ring on a rotor disk three successive blocking hooks of the disk (10), two cleats of the retaining ring, arranged on either side of a split in the retaining ring. The position of the cleats on the retaining ring ... | 06/02/2009 |
| 7500832 | Turbine blade self locking seal plate system A seal plate system (24) for a rotor in a turbine engine. The rotor includes a rotor disc (10) for supporting a plurality of blades (16), and an annular groove (32) provided in the disc (10) adjacent at least one end (30) of... | 03/10/2009 |
| 7442011 | Locking device for turbine blades A turbine blade locking device axially retains a turbine blade (1) inserted in an axial, profiled slot (10) of a turbine disk (6). The turbine disk (6) is provided with a locking groove (8) passing through the slot (10) and ... | 10/28/2008 |
| 7419360 | Rotor disk for a turbomachine A rotor disk for a turbomachine, the disk carrying blades whose roots are retained in a peripheral groove of the disk, the groove including a window for inserting blade roots and a locking member that is a single elastically deformable piece and dimensioned to be re... | 09/02/2008 |
| 7371050 | Device for axially retaining blades on a turbomachine rotor disk A device for axially retaining blades on a rotor disk of a turbomachine, includes an annulus which is mounted via a radially inner edge in an annular groove of the disk and which presses against the roots of the blades mounted in grooves in the periphery of the disk... | 05/13/2008 |
| 7367778 | Rotor end piece A rotor end piece (1) for a rotor (6) of a thermal turbomachine, having at least one circumferential slot (3) in which moving blades and intermediate pieces are provided, includes a residual gap (15) formed between an end blade (2)... | 05/06/2008 |
| 7347672 | Rotor disk balancing device, disk fitted with such a device and rotor with such a disk A rotor disc includes a rim and a balancing device, which includes housings formed in the rim, and balancing masses housed in at least some of the housings. ... | 03/25/2008 |
| 7334996 | Device for the positioning of a blade and bladed disk comprising such a device A device for the positioning of a blade in a slot of a rotor disk includes a spring spacer that consists of a single elastic piece of profiled shape with a top wall and a bottom wall connected together by two side walls. The two side walls include at least one machi... | 02/26/2008 |
| 7309210 | Turbine engine rotor stack A turbine engine has a first disk and a second disk, each extending radially from an inner aperture to an outer periphery. A coupling, transmits a torque and a longitudinal compressive force between the first and second disks. The coupling has first means for transm... | 12/18/2007 |
| 7287961 | Retaining arrangement A retaining arrangement for joining together two components such as a rim coverplate 10 and a rotor disc 12 in a gas turbine engine. The arrangement comprising a channel 54 formed by respective formations 26, 52 on the disc 12 and ... | 10/30/2007 |
| 7284958 | Separable blade platform A gas turbine engine blade platform including a par of platform retention members. The pair of platform retention members are configured to be located on opposite sides of a disk lug. The retention members interact with the disk lug to restrain radial movement of th... | 10/23/2007 |
| 7264447 | Sealing arrangement for an axial turbine wheel In an axial turbine wheel including a rotor disk and a plurality of turbine blades each having a base end retained by the rotor disk via a joint and extending radially from the rotor disk, a seal plate is received in outer and annular slots formed in the base ends o... | 09/04/2007 |
| 7258529 | Securing assembly A securing assembly comprises a first rotatable member defining a first recess. The assembly also includes a second rotatable member defining a second recess. The first recess has an engagement formation. Securing means are locatable in the first and second recesses... | 08/21/2007 |
| 7252481 | Natural frequency tuning of gas turbine engine blades A tuning notch is defined preferably in the back of a blade root to tune the blade natural frequency in a gas turbine engine. ... | 08/07/2007 |
| 7244105 | Blade retention arrangement A blade retention arrangement axially fixes blades (1) to a disk (2). A profiled blade root (3) extending from the airfoil is inserted into a conformal axial slot (5) in the disk (2) and is axially secured by means of a split retai... | 07/17/2007 |
| 7238008 | Turbine blade retainer seal An annular blade retention plate for axially retaining rotor blades within slots of a rotor disk. The plate includes an annular plate web extending radially outwardly from a radially inner plate hub to a plate rim and an annular radially outwardly open outer channel... | 07/03/2007 |
| 7229252 | Rotor assembly retaining apparatus A rotor stage (13, 14, 15, 17, 18, 19) of a gas turbine engine (10) comprises an annular retaining plate (38) capable of preventing axial movement of blades (30). The retaining plate (38) is secured to the disc (32) via a ba... | 06/12/2007 |
| 7217099 | Coated forward stub shaft dovetail slot A compressor forward stub shaft comprising a plurality of axially spaced, annular rows of dovetail grooves, at least a first and a second of the plurality of rows having dovetail slots coated in part with an anti-wear coating. ... | 05/15/2007 |
| 7217100 | Holding system for a rotor end plate A device for holding an annular end plate against a radial face of a rotor disc, the disc having in the radial face an annular recess behind a collar extending radially outwards, and the end plate having, in its radially inner part, an annular base bearing against t... | 05/15/2007 |
| 7198463 | Rotating blade body and rotary machine using rotating blade body Such a rotating blade body is supplied as can prevent not only local wear and deformation but also inadvertent vibration and can maintain cooling efficiency. A rotating blade body consists of a rotor disc 2 and rotating blades 1 which are assembled so ... | 04/03/2007 |
| 7189459 | Turbine blade for extreme temperature conditions One exemplary embodiment of a turbine component (which may be a blade) comprises a substrate comprising a silicide-based material, a plurality of through holes disposed in the substrate, the holes being configured to receive an airflow, a silicide coating disposed a... | 03/13/2007 |
| 7168670 | Quick ceiling fan housing and canopy installation assembly A ceiling fan anchoring bracket and housing assembly for quick and easy installation of the ceiling fan housing for either hugger or down-rod fans is disclosed. The assembly comprises of hook-up pins and lock-up pin fastened on and protruding from the anchoring brac... | 01/30/2007 |
| 7165944 | Compressor blade with dovetail slotted to reduce stress on the airfoil leading edge A blade of an axial compressor comprising: an airfoil is disclosed that has a leading edge and a root; a platform attached to the root of the airfoil; a dovetail attached to a side of the platform opposite to the airfoil; a neck of the dovetail adjacent the platform... | 01/23/2007 |
| 7156621 | Blade fixing relief mismatch A blade fixing and blade mounting slot arrangement for a gas turbine engine has a mismatch fit along a portion of the length of the blade fixing and slot where contact stress would otherwise be maximal. ... | 01/02/2007 |
| 7153103 | Fan blade and disk assembly A gas turbine engine fan blade (22) and disk assembly (30) is provided with levers (36) with which to apply a force to the radially inner end of respective blades (22) so as to move the roots (26) of the blades (22) into abu... | 12/26/2006 |
| 7108484 | Restraining device for fan blade root A restraining device for a fan blade root, in which a packing member is constituted by a metal structure having hollowed out portions filed in by overmolding with a semi-rigid elastomer material, in particular on a lateral edge concave side between an upstream end z... | 09/19/2006 |
| 7090468 | Fastening of moving turbomachine blades A fastening device for fastening moving blades to a disk of a turbomachine rotor includes moving-blade roots which have a mirror-symmetrical cross section with projections, axial disk slots holding the moving-blade roots in a positive-locking manner, and one riveted... | 08/15/2006 |
| 7059831 | Turbine engine disk spacers A gas turbine engine rotor stack includes one or more longitudinally outwardly concave spacers. The spacers may provide a longitudinal compression force that increases with rotational speed. ... | 06/13/2006 |
| 7040866 | System for retaining an annular plate against a radial face of a disk The system retains a plate against a disk presenting in its radial face an annular recess defined by a plurality of walls, one of which is formed by a face of a flange, said plate presenting an annular base pressing against the radially outer wall of the recess and ... | 05/09/2006 |
| 7008190 | Turbomachine rotor arrangement In a succession of rotor disks, only the end disks are connected to a main structure by bolted extensions and the intermediate disks are suspended from rigid spacer pieces by centering and anti-rotation connections. The end disks are interconnected to clamp the asse... | 03/07/2006 |
