The present invention provides engine case systems for gas turbine engines. Embodiments of the engine case systems include a plurality of ring cases and a tie-bolt case. The ring cases may house blades and vanes for the compressor and/or for the turbine. The ring cases may be stacked in series, and may be clamped together by a tie-bolt ...
]]> 8444380 http://www.patentstorm.us/patents/8444379/description.html

A sealing device includes a housing rotatably accommodating a rotary shaft, guide parts extending along a radial direction and an axial direction of the rotary shaft, and arranged side-by-side in a circumferential direction of the rotary shaft, a partition part that is a partition between spaces between the guide parts and an outside space, a first seal part that is an annular protrusion, forming a first gap with respect to the rotary shaft or the partition part, and blocking a flow of ...
]]> 8444379 http://www.patentstorm.us/patents/8444378/description.html

In the area of the support struts and/or the aerodynamic fairings downstream of the stator vanes, the cross-section of the bypass duct of a turbofan engine is enlarged such that the pressure variations caused by the stagnation effect of the installations and reacting on the fan are reduced, enabling the fan to be operated with more efficiency and stability and finally the losses of the overall system and the fuel consumption to be reduced. The cross-sectional enlargement is accomplished by ...
]]> 8444378 http://www.patentstorm.us/patents/8444377/description.html

A method for attaching a connector to deposited material includes the steps of depositing material on a substrate using a thin- or thick-film deposition process and attaching at least one connector to the deposited material using a high energy beam welding ...
]]> 8444377 http://www.patentstorm.us/patents/8444376/description.html

A cooled constructional element for a gas turbine includes a wall having a front and a rear side. The front side is configured to be thermally loaded during operation of the turbine, and the rear side has a plurality of pins projecting therefrom in a two-dimensional distribution, the two-dimensional distribution including a higher density distribution of pins in a critical zone of the cooled constructional element than in the remaining regions of the cooled constructional element. A device ...
]]> 8444376 http://www.patentstorm.us/patents/8444375/description.html

A blade for a gas turbine includes an airfoil extending in radial direction of the turbine or longitudinal direction of the blade, respectively, between a platform and a blade tip. The airfoil is bordered across the airfoil by a leading edge and a trailing edge and has a suction side and a pressure side. At the trailing edge a first cooling passage runs parallel to the trailing edge from the platform to the blade tip in the interior of the airfoil. The cooling passage is supplied with a ...
]]> 8444375 http://www.patentstorm.us/patents/8444374/description.html

The invention relates to a hydroelectric machine. According to the invention, the machine includes: at least two pipes (10, 11) connected to a ballast (8) and to a horizontal bar (14), bearing a vertical axis (15) driving a first gear manipulation box (25) and then the rotor of a first generator (27); blades (16) opposite the openings (12, 13) of the pipes (10, 11), carried by bearings (17) and beams (18), and by a ...
]]> 8444374 http://www.patentstorm.us/patents/8444373/description.html

A cooling fan module includes a first cooling fan pivotally connected with a second cooling fan. The second cooling fan is rotatable relative to the first cooling fan between a first state and a second state. The second cooling fan is located on the first cooling fan in the first state. The second cooling fan is located at a lateral side of the first cooling fan in the second ...
]]> 8444373 http://www.patentstorm.us/patents/8444372/description.html

A turbomachine includes a housing having an outer surface and an inner surface that defines an interior portion. The housing includes a fluid plenum. A rotating member is arranged within the housing. The rotating member includes at least one bucket having a base portion and a tip portion. A stationary member is mounted to the inner surface of the housing adjacent the tip portion of the at least one bucket. At least one fluid passage passes through at least a portion of the stationary ...
]]> 8444372 http://www.patentstorm.us/patents/8444371/description.html

A seal system between a row of buckets supported on a machine rotor and a surrounding stationary casing or stator includes a tip shroud secured at radially outer tips of each of the buckets, the tip shroud formed with a radially-projecting rail. A cellular seal structure is supported in the stationary stator in radial opposition to the tip shroud and the rail. The seal structure has an annular array of individual cells formed to provide continuous, substantially horizontal flow passages ...
]]> 8444371 http://www.patentstorm.us/patents/8444370/description.html

A rotary wheel for radial pumps includes an intermediate wall at which one or more vanes are provided on both sides. Passage openings are formed in the intermediate wall in order to distribute a desired pump flow onto the vanes on both sides of the intermediate ...
]]> 8444370 http://www.patentstorm.us/patents/8439637/description.html

An assembly includes a first tapered roller bearing and a second tapered roller bearing and a bellows spring. The bellows spring is disposed adjacent the first tapered roller bearing and the second tapered roller ...
]]> 8439637 http://www.patentstorm.us/patents/8439636/description.html

A BOAS assembly for a gas turbine engine with a full annular impingement ring secured in place above BOAS segments between front and aft full retainer rings and the front and aft hooks on the BOAS segments. The full impingement ring uncouples the impingement ring from the BOAS segments and eliminates gaps for cooling air leakage so that all of the cooling air is used for impingement cooling of the BOAS segments. A long tongue extending from the aft retainer rings guides the impingement ring ...
]]> 8439636 http://www.patentstorm.us/patents/8439635/description.html

An apparatus and method for locking a composite component such as blade or vane of a turbine engine is disclosed herein. The disclosed lock can also be used generally to fix the position of composite structures. The lock includes a first locking member including a first structure operable to at least partially fix the first locking member along an axis of a slot for receiving a blade or a vane. The lock also includes a second locking member including a second structure operable to engage ...
]]> 8439635 http://www.patentstorm.us/patents/8439634/description.html

A BOAS with a blade tip shroud having rows of sinusoidal shaped grooves on a bottom side, each groove having a row of thin slots extending along the aft side of the groove and opening into the groove, and each thin slot connected to a plurality of metering holes that open into a cooling air supply cavity formed on the top surface of the tip ...
]]> 8439634 http://www.patentstorm.us/patents/8439633/description.html

A steam turbine includes a diffuser that has a bearing cone and an inner plate of a steam guide that define a passage through which steam flows. An outer plate is disposed with respect to the inner plate such that an opening is located between the inner and outer plates. At least one hole is located in the inner plate. A water tube is disposed in the opening, the water tube having water flowing therethrough which condenses at least a portion of a flow of steam flowing in the passage thereby ...
]]> 8439633 http://www.patentstorm.us/patents/8439632/description.html

A thermal module includes a fan device having a fan and a fan housing for covering the fan. A vent is disposed on the fan housing. The thermal module further includes an airflow guiding device installed on the fan housing and disposed on a side of the vent for guiding airflow into the ...
]]> 8439632 http://www.patentstorm.us/patents/8439631/description.html

A shaft coupling arrangement and a corresponding method for coupling shafts are disclosed herein. The shaft coupling arrangement includes an input shaft operable to rotate about a first axis. The shaft coupling arrangement also includes an output shaft operable to rotate about a second axis. The shaft coupling arrangement also includes a gearing arrangement operable to engage the input and output shafts together for rotation in the same angular direction at different angular speeds. In one ...
]]> 8439631 http://www.patentstorm.us/patents/8439630/description.html

The monitoring system for a gas turbine engine including a viewing tube assembly having an inner end and an outer end. The inner end is located adjacent to a hot gas flow path within the gas turbine engine and the outer end is located adjacent to an outer casing of the gas turbine engine. An aperture wall is located at the inner end of the viewing tube assembly and an optical element is located within the viewing tube assembly adjacent to the inner end and is spaced from the aperture wall ...
]]> 8439630 http://www.patentstorm.us/patents/8439629/description.html

A turbine engine blade outer air seal segment has a body having a base portion. The base portion has a transversely concave ID face, a forward end, an aft end, and first and second circumferential edges. The body has at least one mounting hook. At least one cover plate is secured to the body to define at least one cavity. The cover plate has a plurality of feed holes. A plurality of outlet holes extend through the base portion to the ID face. At least one of the base portion and cover plate ...
]]> 8439629 http://www.patentstorm.us/patents/8439628/description.html

An airfoil includes a leading edge, a trailing edge, a suction side and a pressure side; a plurality of internal cooling cavities extending radially within the airfoil, one of the plurality of internal cavities extending along the trailing edge. The trailing edge is provided with a plurality of coolant exit apertures extending therealong. A plurality of vortex generators is formed on an internal surface of at least one of the pressure and suction sides of the airfoil. The vortex generators ...
]]> 8439628 http://www.patentstorm.us/patents/8439627/description.html

A steam turbine includes a casing, a rotor arranged inside the casing so as to extend in an axial direction of the casing, a rotor disk integrally formed with the rotor, a rotor-side implanting portion formed in the rotor disk, a plurality of moving blades arranged on the rotor disk in a circumferential direction of the rotor, and a moving blade-side implanting portion formed in the moving blade, in which the moving blade-side implanting portions of the moving blades are engaged with the ...
]]> 8439627 http://www.patentstorm.us/patents/8439626/description.html

A method of decreasing the operational stresses acting on a target airfoil row in a turbine engine; wherein the target airfoil row is bordered on each side by a first upstream airfoil row and a first downstream airfoil row; the first upstream airfoil row and the first downstream airfoil row having substantially the same number of similar airfoils and both comprising one of a row of rotor blades and a row of stator blades, and the target airfoil row comprising the other; the method ...
]]> 8439626 http://www.patentstorm.us/patents/8435001/description.html

Plasma generators (48, 49, 70, 71) in an endwall (25) of an airfoil (22) induce aerodynamic flows in directions (50) that modify streamlines (47) of the endwall boundary layer toward a streamline geometry (46) of a midspan region of the airfoil. This reduces vortices (42) generated by the momentum deficit of the boundary layer, increasing aerodynamic efficiency. The plasma generators may be arrayed around the leading edge as well as between ...
]]> 8435001 http://www.patentstorm.us/patents/8435000/description.html

A variable vane actuation system is disclosed herein. The variable vane actuation system includes a ring member disposed for pivoting movement about a centerline axis. The ring member is engaged with a plurality of vanes in a turbine engine such that the plurality of vanes pivot in response to the pivoting movement of the ring member. The variable vane actuation system also includes a ring moving device engaged with the ring member at first and second positions spaced from one another about ...
]]> 8435000 http://www.patentstorm.us/patents/8434999/description.html

A spline seal for a hot gas path component is provided. The spline seal may include a first metal layer and a second metal layer. The first metal layer may have a first volumetric thermal expansion coefficient. The second metal layer may be disposed adjacent the first metal layer and have a second volumetric thermal expansion coefficient. The second volumetric thermal expansion coefficient may be higher than the first volumetric thermal expansion coefficient. When the spline seal is exposed ...
]]> 8434999 http://www.patentstorm.us/patents/8434998/description.html

A seal assembly for a compressor includes a static member fixedly disposed within a compressor casing and having an end surface and a rotatable separator coupled with a compressor shaft and spaced from the static member. The separator has an axial end with a radial end surface located adjacent to the static member end surface such that a clearance space is defined therebetween. The separator has a plurality of openings extending inwardly from the end surface and spaced about the shaft axis ...
]]> 8434998 http://www.patentstorm.us/patents/8434997/description.html

A gas turbine engine includes an active clearance control (ACC) system within the engine casing. The case includes a wall structure with a cast-in cooling configuration through Refractory Metal Core technology which is tailored to address traditional hot spots and improve discrete control of case ...
]]> 8434997 http://www.patentstorm.us/patents/8434996/description.html

A system for detecting loads in a wind turbine is disclosed. In one aspect, the system may generally include a shaft and first and second pillow blocks receiving portions of the shaft. The second pillow block may be spaced axially apart from the first pillow block. Additionally, the system may include at least one sensor configured to indirectly detect loads transmitted through at least one of the first pillow block and the second pillow ...
]]> 8434996 http://www.patentstorm.us/patents/8434995/description.html

A gas turbine engine fan casing duct wall comprises an intake section and a containment casing, provided respectively with flanges. An acoustic flutter damper is secured between the flanges. The acoustic flutter damper has a skin accommodating an internal structure that dampens fan blade flutter. The skin is secured to the flanges at separate locations. In normal operation of the engine, the internal structure is sufficiently robust to support loads transmitted through the acoustic flutter ...
]]> 8434995 http://www.patentstorm.us/patents/8434994/description.html

A gas turbine includes a compressor, a turbine downstream of the compressor having stators, and a rotor connecting the compressor to the turbine. The rotor includes rotor cavities. A supply plenum containing a process by-product gas and a control valve is connected to at least one of the rotor cavities to supply the process by-product gas to at least one of the rotor cavities. A process for operating a gas turbine having a compressor and a turbine includes connecting the compressor to the ...
]]> 8434994 http://www.patentstorm.us/patents/8430630/description.html

A rotary coupling having a first element and a coaxial second element, the first and second elements being rotatable relative to each other and defining an annular passage between radially facing walls thereof. The coupling has a sealing ring at an end of the annular passage, the sealing ring being mounted to the wall of the first element and rotating relative to the second element, and having an active configuration in which the sealing ring is urged against the wall of the second element ...
]]> 8430630 http://www.patentstorm.us/patents/8430629/description.html

An assembly for a stator stage of a turbomachine is disclosed. The assembly includes: an outer shroud presenting a series of openings for mounting each stationary vane by welding between the edge of an opening and the outline of the platform of the vane, the outline of the outer segment of an opening surrounding, in radial projection, the outline of the inner segment thereof, the shroud not having any other holes; and at least one stationary vane with its top including a non-pierced ...
]]> 8430629 http://www.patentstorm.us/patents/8430628/description.html

A pressure balance seal includes a sealing surface facing an inward radial direction, and a stator interface comprising at least one surface interfacing with a stator. The pressure balance seal further includes a friction reducing feature. The friction reducing feature includes a cavity on the sealing surface. The cavity is configured to receive a fluid such that a normal force acting on the pressure balance seal is counterbalanced by a force generated by a pressure of the ...
]]> 8430628 http://www.patentstorm.us/patents/8430627/description.html

A gas turbine exhaust strut installed in an exhaust case of a gas turbine is disclosed which includes a trailing portion configured with an inner surface for mounting to an inner annular member of the exhaust case and an outer surface for mounting to an outer annular member of the exhaust case, a block attached to the trailing portion, an angled piece attached to the block and configured with a surface on a pressure side of the strut angled with respect to a surface of the trailing portion ...
]]> 8430627 http://www.patentstorm.us/patents/8430626/description.html

A stator vane with a mate-face cooling and sealing arrangement, the vane end rails include an upper axial U-shaped seal slot and a lower axial U-shaped seal slot with an upper U-shaped riffle seal and a lower U-shaped riffle seal secured within the two axial U-shaped seal slots. The two U-shaped seals form a box-like arrangement with riffle teeth formed on the top sides of a horizontal plate for each of the U-shaped ...
]]> 8430626 http://www.patentstorm.us/patents/8430625/description.html

A centerline suspension arrangement (42) for a turbine (40). A turbine inner casing (44) is supported within an outer casing (46) via a support member (60) that includes an inner portion (62) contacting the inner casing and an outer portion (66) extending into a slot (68) formed in the outer casing. The support member is slid into an axially oriented slot (64) formed in the inner casing and is body bound therein with respect to ...
]]> 8430625 http://www.patentstorm.us/patents/8430624/description.html

A fan assembly for creating an air current includes a nozzle mounted on a base. The base includes an outer casing, a silencing member housed within the outer casing, an impeller housing located within the outer casing, the impeller housing having an air inlet and an air outlet, an impeller located within the impeller housing and a motor for driving the impeller about an axis to create an air flow through the impeller housing. The nozzle includes an interior passage for receiving the air ...
]]> 8430624 http://www.patentstorm.us/patents/8430623/description.html

A fan blade for a gas turbine engine has an aerofoil part and a root part. The root part includes a root former; the root former 18 includes a zone of weakness, which reduces the ability of the root part to withstand an impact force. Thus, in an impact situation in which the fan blade has separated from the fan rotor and the fan blade has itself separated into fragments, the root part will fracture or buckle more easily than would be the case with conventional arrangements. This will ...
]]> 8430623 http://www.patentstorm.us/patents/8430622/description.html

In a turbofan gas turbine engine, a fan shaft is rotatably mounted and radially supported by a bearing in a bearing support structure supported from a fixed engine structure by radially frangible bolts and radially extending spokes. The radially inner ends of the radially extending spokes are mounted on a common member that engages the bearing support structure. The radially outer ends of the radially extending spokes are mounted on a fixed engine structure located radially outwardly of the ...
]]> 8430622