Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8147201 | Kinetic hydro power triangular blade hub A rotor hub mounting arrangement for removably mounting a plurality of turbine rotor blades to the rotor hub in a compact and secure manner. The rotor hub includes an internal mounting assembly, preferably comprised of a series of interconnected mounting plates, pos... | 04/03/2012 |
| 8025485 | Wind turbine blade attachment configuration with flattened bolts A wind turbine includes a plurality of turbine blades, with each of the blades having a root flange that attaches to a flange of a rotor hub by a plurality of circumferentially spaced blade bolts. The blade bolts have opposite cylindrical end sections engaged within... | 09/27/2011 |
| 7909578 | Turbo machine, compressor impeller used for turbo machine, and method of manufacturing turbo machine A turbocharger as a turbo machine includes: a compressor impeller (13) having a projected portion (19) at a center of a rear surface; a drive shaft (15) connected to a bottomed coupling hole (20) provided in the projected portion (19 | 03/22/2011 |
| 7410345 | Turbine nozzle retention key A retaining key for a turbine nozzle includes a key body having top and bottom surfaces, a pair of sides and a pair of ends including a forward end having a pair of horizontal shoulders on opposite sides of a center rib, the shoulders located substantially midway be... | 08/12/2008 |
| 7374402 | Fastening arrangement for an impeller on a shaft The fastening arrangement (26) for an impeller (22) on a shaft (14), in particular for an impeller (22) of a turbocharger on a turbocharger shaft (14), comprises a bush (34), which can be screwed onto a shaft journal (20 | 05/20/2008 |
| 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 |
| 7334330 | Thermally insulating layer incorporating a distinguishing agent and method for inspecting the same Thermally insulating layer incorporating a distinguishing agent and method for inspecting the insulating layer are provided. The distinguishing agent may be used for determining a remaining thickness of the thermally insulating layer. ... | 02/26/2008 |
| 7309214 | Rotor end piece A rotor end piece for a rotor of a thermal turbomachine having a circumferential slot includes two end piece halves having side faces opposite one another in the installed state and top surfaces adjoining one another, the side faces of the end piece halves being con... | 12/18/2007 |
| 7309215 | Axial locking device for turbine blades A turbine blade locking device for axial retention of a turbine blade (1) having a blade root (3) inserted in an axially extending profiled lobe slot (5) of a turbine disk (4), wherein, a sealing fin of a blade platform (10) includ... | 12/18/2007 |
| 7300253 | Gas turbine blade or vane and platform element for a gas turbine blade or vane ring of a gas turbine, supporting structure for securing gas turbine blades or vanes arranged in a ring, gas turbine blade or vane ring and the use of a gas turbine blade or vane ring The invention relates to a gas turbine blade or vane ring having a supporting structure and gas turbine blades or vanes secured to it. The gas turbine blades or vanes have a blade or vane root, which is successively adjoined by a platform and then a blade profile wh... | 11/27/2007 |
| 7223077 | Structure for connecting compressor wheel and shaft It is an object of the invention to provide a structure for connecting a compressor wheel and a shaft, which structure is not easily broken when rotated at high speed. A male screw is provided on an outer surface of a projection formed on the center of a rear of the... | 05/29/2007 |
| 7182579 | Device and method for detachably connecting an impeller to a shaft A rotor assembly for a turbomachine includes an impeller, a shaft, a bolt, and a compliant spacer. The impeller has an opening extending in an axial direction and a stem with an outer surface having a tapered profile in a cross section including the axis and a non-c... | 02/27/2007 |
| 7147436 | Turbine engine rotor retainer A gas turbine engine has a rotor stack carried by a central shaft. A number of retainer segments each have a first surface engaging the rotor stack and a second surface engaging the central shaft so as to transmit a precompression force from the central shaft to the... | 12/12/2006 |
| 7134843 | Turbine wheel for turbomachine and the assembly method for such a wheel A turbine wheel for a turbomachine, the disk of which comprises upstream and downstream ribs extending in the annular direction around an axis, each blade segment installed on the disk being retained by the disk in an external radial direction using upstream engagem... | 11/14/2006 |
| 7114927 | Fixing method for the blading of a fluid-flow machine and fixing arrangement A fixing method for blading of a fluid-flow machine, in which first of all the turbine blades (31, 32) are inserted into the fastening slot (1) of a rotor (2) or stator until only the intermediate fitting gap is left... | 10/03/2006 |
| 7104759 | Compressor blade platform extension and methods of retrofitting blades of different blade angles Blades of increased blade angle may be retrofitted onto existing compressor rotor wheels as replacement blades whereby higher performance and efficiency without replacing the rotor wheel may be achieved. The base attachments of replacement blades are provided with l... | 09/12/2006 |
| 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 |
| 7090467 | Fan drive attachment assembly The invention is a fan drive attachment assembly for a motor vehicle that uses a tapered coupling to assemble the drive hub and fan drive together. ... | 08/15/2006 |
| 7048496 | Turbine cooling, purge, and sealing system A rotor system for a gas turbine engine is provided having an outer rotor which includes an annular outer spool that comprises at least one ring portion of increased thickness with respect to the remainder of the outer spool, attached to a relatively thinner, axiall... | 05/23/2006 |
| 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 |
| 7028677 | External drive supercharger An external drive supercharger is described. The external drive supercharger includes an impeller, a multibelt pulley adapted to a drive source, an impeller pulley drivingly coupled to the impeller, and an external drive belt having at least one rib coupled to the m... | 04/18/2006 |
| 7018177 | Impeller lock assembly and method The impeller axial lock limits axial movement of an impeller disposed on a shaft. The impeller is spaced axially from a shaft sleeve disposed about the shaft. The impeller axial lock includes a ring member disposed about the shaft between the impeller and shaft slee... | 03/28/2006 |
| 7010917 | Compressor wheel assembly A turbocharger comprises a compressor wheel (7) assembled to one end of a turbocharger shaft (8). A nut (17) is threaded on to the end of the shaft (8) to clamp the wheel (7) on the shaft to prevent both axial movement of the wheel... | 03/14/2006 |
| 7008191 | Compressor wheel assembly A compressor wheel assembly comprises a compressor wheel (7) mounted to a rotating shaft (8), which extends through a bore provided along the rotational axis of the wheel (7). The wheel (7) is keyed to the shaft (8) such that rotat... | 03/07/2006 |
| 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 |
| 6969238 | Tri-property rotor assembly of a turbine engine, and method for its preparation A rotor assembly of an axial flow turbine engine has a bladed ring including a ring, and a plurality of turbine blades affixed to the ring and extending radially outwardly from the ring. There is a solid state weld joint between a central disk hub and the ring of th... | 11/29/2005 |
| 6969239 | Apparatus and method for damping vibrations between a compressor stator vane and a casing of a gas turbine engine A stator vane assembly for a compressor of a gas turbine engine, including a stator vane having an inner portion and an outer portion, a platform attached to the outer portion of the stator vane, a casing for the gas turbine engine, wherein the outer platform of the... | 11/29/2005 |
| 6948913 | Turbochargers A turbocharger has a shaft formed of a strong material such as steel and an impeller formed of a relatively weaker material such as aluminum alloy. The impeller is mounted on the shaft by means of an internally-threaded insert, for example also of steel, interferenc... | 09/27/2005 |
| 6893226 | Rotor disc for gas turbine engine A rotor drive (32) for a gas turbine engine (10) comprising a main drive body (44) having attachment lugs (46) on its radially outer port. The attachment lugs (46) are formed from a different material to the main drive body (44 | 05/17/2005 |
| 6764281 | Rotor system for an expansion turbine for low-temperature applications A rotor of an expansion turbine for low-temperature applications that comprises a turbine rotor, wherein a cold gas is admitted and flows through the rotor centripetally. There is also a turbine shaft. There is also a stud screw that can be inserted in a threaded bo... | 07/20/2004 |
| 6582195 | Compressor rotor blade spacer apparatus An integral compressor rotor spacer cartridge fits within the dovetail region of the rim of a compressor rotor wheel to retain the dovetail portion of the rotor blade and maintain an angular spaced relationship between the rotor blades. The dovetail porti... | 06/24/2003 |
| 6520743 | Rotor blade retaining apparatus An apparatus for axially retaining rotor blades to an annular radially extending disk having a recess and a flange. An annular retaining ring is disposed in the recess and includes an axially extending lip and an axially outer side forming an annular beve... | 02/18/2003 |
| 6499958 | Device and method for detachably connecting an impeller to a pinion shaft in a high speed fluid compressor A compressor rotor assembly including an impeller including an impeller stem, the stem including a first coupling end having a first face and at least one arcuate coupling tab along the first face; the impeller stem further comprising a bore that extends ... | 12/31/2002 |
| 6499969 | Conically jointed turbocharger rotor A turbocharger rotor includes a turbine wheel, a compressor wheel, a shaft extending between the turbine and compressor wheels for rotation together about an axis, and connecting means including two pairs of non-locking cones. In a preferred embodiment, t... | 12/31/2002 |
| 6488473 | Retaining arrangement for rotor blades of axial-flow turbomachinery This invention relate to a retaining arrangement for rotor blades of axial-flow turbomachinery which features blade roots slots on a rotor disk for the accommodation and radial fixation of roter blades and which further features a continues, circumferenti... | 12/03/2002 |
| 6481970 | Compressor wheel with prestressed hub and interference fit insert A compressor wheel (10) for a turbocharger having a prestressed hub (16) with an interference fit insert sized to provide the predetermined stress at zero rotational speed. The predetermined prestress then results in a reduced operating stress level durin... | 11/19/2002 |
| 6447252 | Rotor-shaft connector An annular connector for connecting a rotor and shaft, has an axial cross sectional profile which approximates a serpentine form. The shape defines only obtuse angles and curves, so that during rotation of the assembly, stress variations in the connector ... | 09/10/2002 |
| 6435831 | Gas-turbine rotor The gas-turbine rotor is composed of a plurality of rotor disks which are placed one next to another in the axial direction thereof and fastened by spindle bolts piercing through all the rotor disks in the axial direction. Each of the rotor disks has annu... | 08/20/2002 |
| 6422820 | Corner tang fan blade A fan blade includes perforated anchor tangs, one with inboard corners and the remainder without. The corners are disposed in a complementary seat in a rotor disk for limiting blade pivoting during assembly.... | 07/23/2002 |
| 6413050 | Friction damped turbine blade and method A friction damped turbine blade is disclosed. The turbine blade is formed of segments configured so as to form an assemblage corresponding to the airfoil shaped body. Each of the segments is in slidable contact with an adjacent segment. During turbine ope... | 07/02/2002 |
