General Electric Patent Applications

CERAMIC MATRIX COMPOSITE STRUCTURES WITH CONTROLLED MICROSTRUCTURES FABRICATED USING CHEMICAL VAPOR INFILTRATION (CVI)

Granted: January 19, 2017
Application Number: 20170015595
According to a method set forth herein a plurality of preform plies having first and second preform plies can be associated together to define a preform. The preform can be subject to chemical vapor infiltration (CVI) processing to define a ceramic matrix composite (CMC) structure.

LOW-LEAD DRY FILM LUBRICANT COMPOSITION

Granted: January 19, 2017
Application Number: 20170015932
A composition includes molybdenum disulfide, epoxy binder, and 0.01 to 3 wt % lead. The composition is useful, for example, as dry film lubricant.

CALIBRATION BLOCK FOR INSPECTION OF GAS TURBINE COMPONENT AND MANUFACTURING METHOD

Granted: January 19, 2017
Application Number: 20170016804
A calibration block and method of making the same are disclosed. The block includes a substrate having a base material with first and second opposite sides; a bond layer and a thermal barrier layer coated on the first side of the base material. The block further includes artificial defects configured in the substrate in the form of holes and notches. The holes on the base material extend from the second side to the first side, excluding the bond and thermal corrosion coated layers. At…

APPARATUS AND METHOD FOR RAPID CHARGING USING SHARED POWER ELECTRONICS

Granted: January 5, 2017
Application Number: 20170001528
An apparatus comprises a power electronic energy conversion system comprising a first energy storage device configured to store DC energy and a first voltage converter configured to convert a second voltage from a remote power supply into a first charging voltage configured to charge the first energy storage device. The apparatus also includes a first controller configured to control the first voltage converter to convert the second voltage into the first charging voltage and to provide…

ROTOR BLADE OR GUIDE VANE ASSEMBLY

Granted: January 5, 2017
Application Number: 20170002661
The disclosure refers to a method of assembling or disassembling a rotor blade or guide vane assembly, wherein the rotor blade or guide vane includes an airfoil and additional structured peripheral members forming at least an inner and/or an outer platform of the rotor blade or guide vane. The airfoil includes at least one airfoil sub-structure designed for anchoring at least one superposed component for the purpose of a thermal protection. The connection between the airfoil…

MECHANICAL FASTENING SYSTEM FOR ROTATING OR STATIONARY COMPONENTS

Granted: January 5, 2017
Application Number: 20170002669
A mechanical fastening system for rotating or stationary components such as turbine or compressor blades on a rotor or a shaft or a casing, respectively, is disclosed. The system includes a circumferential mounting groove adapted for receiving root sections of the rotating or stationary components as well as intermediate fastening components for fixation of the components in equidistance positions. The intermediate fastening components comprise at least an upper platform and at least a…

CONTROL APPARATUS FOR ANGLING GUIDE VANES OF A TORQUE CONVERTER

Granted: January 5, 2017
Application Number: 20170002745
A control apparatus for angling guide vanes of a torque converter is provided and includes a modeling unit configured to receive current condition data, to determine a current input power supplied by a starting motor from the current condition data and to output a result of the determination as a control signal and a controller, which is coupled to the modeling unit and thereby receptive of the control signal. The controller is configured to execute a comparison of the current input…

SYSTEM AND METHOD FOR MEASURING CONCENTRATION OF A TRACE GAS IN A GAS MIXTURE

Granted: January 5, 2017
Application Number: 20170003218
A method includes receiving a gas mixture at a first pressure including at least a primary gas and a secondary gas and changing a pressure of the received gas mixture from the first pressure to a second pressure. Further, the method includes determining a spectra of the gas mixture at the second pressure, wherein at least the first spectral line of the primary gas is spectrally distinguished from at least the second spectral line of the secondary gas, identifying a peak wavelength…

MAGNETIC RESONANCE IMAGING SYSTEM AND METHOD

Granted: January 5, 2017
Application Number: 20170003367
A method of parallel imaging for use with a magnetic resonance imaging apparatus includes producing a longitudinal magnetic field B0 throughout a target volume, producing a transverse magnetic field B1 that is generally perpendicular to B0 throughout the target volume, transmitting a plurality of RF pulses to the target volume, with a surface coil, acquiring first MRI data from a target within the target volume in response to the transmission of RF pulses, and with a body coil, acquiring…

METHOD AND APPARATUS FOR RING ARTIFACT REPAIR OF MAGNETIC RESONANCE IMAGES

Granted: January 5, 2017
Application Number: 20170003370
An apparatus for detecting and repairing a ring artifact in a multi-spectral magnetic resonance image includes an image processor, which is configured to obtain an off-resonance magnetic field map and a deblurred composite image, to calculate a spatial gradient of the image based on the magnetic field map, to kernel search the spatial gradient, to mask the image, based on the kernel search, in order to identify voxels affected by a ring artifact, and to apply a filter in order to smooth…

MODULAR MULTILEVEL CONVERTER LEG WITH FLAT-TOP PWM MODULATION, CONVERTER AND HYBRID CONVERTER TOPOLOGIES

Granted: January 5, 2017
Application Number: 20170005589
A voltage source converter for interconnecting first and second electrical networks, including first and second terminals for connection to the first electrical network, and a primary converter limb extending between the first and second terminals including first and second primary limb portions separated by a third terminal connectable to the second electrical network. The converter further including a second chain-link converter connected to the third terminal and a control unit…

METHOD AND SYSTEM FOR ENHANCED VISUALIZATION BY AUTOMATICALLY ADJUSTING ULTRASOUND NEEDLE RECOGNITION PARAMETERS

Granted: December 29, 2016
Application Number: 20160374643
An ultrasound device determines a position and orientation of a surgical instrument based at least in part on tracking information, such as magnetic field strength, emitted by an emitter of a tracking system and detected by a sensor of the tracking system. The sensor and the emitter are attached to or within a different one of a probe of the ultrasound device and the surgical instrument. The ultrasound device determines an ultrasound imaging parameter, such as an ultrasound beam steering…

METHOD AND TOOL FOR USE WITH TURBOMACHINES

Granted: December 29, 2016
Application Number: 20160375498
A tool for drilling, tapping, and back spot facing at least one hole in a turbomachine includes a servo motor cutting device configured for use with a cutting tool. A drill unit skid is adapted to engage a hook fit slot in a case of the turbomachine, and for supporting the servo motor cutting device, and the drill unit skid including hook fit slides. The hook fit slides guide the drill unit skid along the hook fit slot and act as a stop in a radial direction with respect to the…

DIFFUSION COATINGS FOR METAL-BASED SUBSTRATE AND METHODS OF PREPARATION THEREOF

Granted: December 29, 2016
Application Number: 20160376693
The present invention is directed to coating compositions for forming diffusion coatings on metal-based substrates. The coating compositions may include a metal powder, an inorganic salt, an activator, and a binder. The present invention is also directed to processes for forming diffusion coatings on metal-based substrates using the disclosed coating compositions.

GUIDE VANE ASSEMBLY ON THE BASIS OF A MODULAR STRUCTURE

Granted: December 29, 2016
Application Number: 20160376899
The invention relates to a guide vane assembly of a turbomachine based on a modular structure, wherein the guide vane elements include at least an airfoil, an inner platform, an outer platform, wherein the guide vane airfoil and/or platforms have at its one ending provisions for connection of the guide vane elements among each other. The connections of the guide vane elements among each other are configured as a detachable, permanent or semi-permanent fixation with respect to the radial…

SYSTEM FOR DETECTING COOLANT LEAKS IN GENERATORS

Granted: December 29, 2016
Application Number: 20160377502
A system for detecting a gas leak in a generator includes a source of carbon dioxide gas, and a subsystem for introducing the carbon dioxide gas into the generator. An infrared imaging device is adapted to communicate with a notification device to display an image of at least a portion of the generator and the carbon dioxide gas. The infrared imaging device is a cooled detector and a filter with a spectral response between about 3 ?m and about 5 ?m. At least one of the detector and the…

SYSTEM AND METHOD FOR SYNCHRONIZING NETWORKED COMPONENTS

Granted: December 29, 2016
Application Number: 20160378134
A method for synchronizing a plurality of components that are networked via a plurality of high speed switches, the method includes frequency-locking to a master clock component clocks of the plurality of components, and synchronizing to a master counter, driven by the master clock, component counters of the plurality of components, so that the frequency-locked component clocks drive the component counters in synchrony with the master counter.

VOLTAGE LIMITER

Granted: December 29, 2016
Application Number: 20160380428
A voltage limiter includes first and second DC terminals connectable to a DC power transmission medium and ground, respectively. The voltage limiter further includes: (1) a current transmission path including two portions connected in series between the terminals and each including a non-linear resistive element; (2) a current bypass limb connected in parallel with the second portion and including at least one switching element; and (3) a control unit configured to control switching of…

METHOD AND APPARATUS FOR CRACKING HYDROCARBON

Granted: December 22, 2016
Application Number: 20160369174
A method for cracking hydrocarbon includes: providing hydrocarbon; and feeding the hydrocarbon into an apparatus having an inner surface accessible to hydrocarbon, the inner surface comprising a perovskite material and a tuning material; wherein a yield of coke in the apparatus is lower than that in an apparatus without the perovskite material; and a yield of carbon monoxide in the apparatus is lower than that in an apparatus without the tuning material. An associated apparatus is also…

METHODS AND SYSTEM FOR A TURBOCHARGER

Granted: December 22, 2016
Application Number: 20160369645
Various methods and systems are provided for controlling a tip clearance between a shroud and blade of a turbocharger turbine. In one embodiment, a method for an engine including a turbocharger comprises, selectively adjusting a flow of coolant from one or more engine coolant sources through a shroud of a turbine based on a tip clearance between the shroud and a blade of the turbine.