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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7901187 | Turbine rotor blade groove entry slot lock structure A blade lock structure for blading an axial flow turbine having a rotor and blades. The blades are inserted into an undercut blade groove of the rotor providing a positive lock between the blades and the rotor. The lock structure includes an entry slot located in th... | 03/08/2011 |
| 7399164 | Turbine engine and bladed rotor for a compression stage of a turbine engine A turbine engine and a rotor for a turbine engine are provided. Several adjacent turbine blades are positioned in the circumferential direction of the rotor, each turbine blade having a blade root, each turbine being fixed in a retainer groove, running in the circum... | 07/15/2008 |
| 7338258 | Axially separate rotor end piece A rotor end piece (1) for a rotor of a thermal turbomachine, having at least one circumferential slot (3) in which press blades, intermediate pieces and two end blades (4), between which a residual gap is formed, are fitted, the rotor end piece ... | 03/04/2008 |
| 7306433 | Apparatus and method for securing a rotor blade in a rotor of a turbine-type machine A rotor of a turbine-type machine, in particular a gas turbine rotor, is disclosed. The rotor has a rotor base body, where the rotor base body has a groove extending in the circumferential direction of the rotor base body, and has multiple rotor blades, or rotor bla... | 12/11/2007 |
| 7284959 | Apparatus and method for securing a rotor blade in a rotor of a turbine-type machine A rotor of a turbine-type machine, in particular a gas turbine rotor, is disclosed. The rotor has a rotor base body, where the rotor base body has a groove extending in the circumferential direction of the rotor base body, and has multiple rotor blades or rotor blad... | 10/23/2007 |
| 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 |
| 7192256 | Rotor end piece The invention relates to a rotor end piece (1) for rotors (2) of thermal turbomachines with a circumferential slot (3), consisting of two end piece halves (4, 4′) having side faces (5, 5′) opposite one another in the installed ... | 03/20/2007 |
| 7080974 | Retention capacity of a blade having an asymmetrical hammerhead fastener, with the help of platform stiffeners The invention relates to a bladed disk for a turbomachine, the disk including blades which extend into a conical stream and which are held in a peripheral groove of said disk by hammerhead type fasteners, each of said blades further including a platform whose radial... | 07/25/2006 |
| 7048508 | Rotor end piece A rotor end piece (1) for rotors (2) of thermal turbormachines is provided with circumferential slot (3), including two end piece halves (4, 4′) having side faces (5, 5′) opposite one another in the installed state and top surf... | 05/23/2006 |
| 7037079 | Axial-flow thermal turbomachine The invention relates to an axial-flow thermal turbomachine, having a rotor (1) made from a metallic material with a first density (D1), in which rotor blades (3, 3′) and intermediate pieces (4) are mounted alternately in a circumfe... | 05/02/2006 |
| 6908279 | Method of installing stationary blades of a turbine and turbine structure having a radial loading pin A wedge-like nozzle radial loading pin, preferably formed from steel, that contacts the bottom of a reaction nozzle along a graduated, that is inclined or stepped, surface. This contact will secure the reaction nozzle radially inward against the retaining surface of... | 06/21/2005 |
| 6786699 | Methods of assembling airfoils to turbine components and assemblies thereof Airfoils and grooves on the rotor or carrier for the airfoils have generally complementary dovetail shapes. The airfoils are installed in the grooves by sliding the bases of the airfoils along the circumferential grooves into final circumferential positions. At each... | 09/07/2004 |
| 6682307 | Sealing system for a rotor of a turbo engine A turbomachine, in particular a gas turbine, includes a rotor which extends along an axis of rotation. The rotor includes a circumferential face, which is defined by the outer radial boundary surface of the rotor, and a receiving structure. Additionally, ... | 01/27/2004 |
| 6033185 | Stress relieved dovetail A rotor blade includes an airfoil, an integral platform, and a dovetail integrally joined to the platform. The dovetail includes a neck extending between a pair of dovetail lobes configured to engage a complementary slot in a rotor disk. The dovetail incl... | 03/07/2000 |
| 5919032 | Bladed disk with three-root blades The blades (10) of a turbine or a compressor are here fixed to the disk (1) by three roots (7, 8 and 9) inserted in the same number of circular grooves (4, 5 and 6). This assembly makes it possible to provide a good distribution of stresses during functio... | 07/06/1999 |
| 5370501 | Fan for a ducted fan gas turbine engine A fan for a ducted fan gas turbine engine comprises a hub carrying an array of generally radially extending fan blades. The hub is hollow and tapered in an axial direction. The radially outer hub surface is provided with a plurality of generally axially e... | 12/06/1994 |
| 5232346 | Rotor assembly and platform spacer therefor A platform spacer is joinable to a rotor disk between adjacent rotor blades having dovetails retained in a circumferential dovetail groove therein. The spacer includes a platform having a flat upper surface sized for abutting adjacent blade platforms to f... | 08/03/1993 |
| 5174720 | Arrangement for attaching blades on the wheel of a rotor To attach blades (5) on a rotor wheel for turbines or compressors, the wheel (1) has threads (2) running to the inside in a spiral shape on both sides of the outer edge. The blades (5) have segments on their feet (7) of counter-threads shaped accordingly.... | 12/29/1992 |
| 4684326 | Bladed rotor assembly, and method of forming same The Assembly has a submerged root, turbine-wheel-blading configuration, and utilizes circumferentially oriented, buried, friction damping wires, and continuous, overlapping, tip shrouds to minimize vibratory response. The wires, in the presence of blade v... | 08/04/1987 |
| 4482296 | Bladed rotor assembly and method of forming same The Assembly has a submerged root, turbine-wheel-blading configuration, and utilizes circumferentially oriented, buried, friction damping wires, and continuous, overlapping, tip shrouds to minimize vibratory response. The wires, in the presence of blade v... | 11/13/1984 |
| 4465432 | System for mounting and attaching turbine and compressor prismatic rooted blades and mounting process The system for mounting and attaching turbine and compressor prismatic rooted blades includes a mounting sector formed by the elimination of two circumferential flanges provided on the edges of the rim. The length of the sector is about three widths of th... | 08/14/1984 |
| 4462756 | Rotor for fluid flow machine A filler member for a rotor of a turbomachine in which the rotor is of the type comprising a body provided with a peripheral groove. Each side of the groove has a flange which has a surface facing radially inwards. A circumferential array of blades, each ... | 07/31/1984 |
| 4460315 | Turbomachine rotor assembly According to the present invention, there is provided a turbomachine rotor assembly having a blade mounting means comprising a rotor spool defining a flowpath surface and having at least one circumferential dovetail shaped retaining groove therein. A plur... | 07/17/1984 |
| 4080101 | Bladed rotor for fans A fan rotor has a hub having a peripheral rim, a plurality of segments assembled together in the rim to form a ring, at least some of the segments having a base portion which forms a segment of the ring and a blade integral with the base and extending out... | 03/21/1978 |
