General Electric Patent Grants

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Granted: April 25, 2017
Patent Number: D784932

Systems and methods for coronary imaging

Granted: April 25, 2017
Patent Number: 9629587
A method is provided including determining at least one range of phases of a cardiac cycle from which to select a selected phase based on at least one of patient demographic information, patient physiological information, or a general physiological model. The method also includes generating corresponding intermediate images for each of the phases of the at least one range of phases. Further, the method includes selecting the selected phase based on at least one image quality (IQ) metric…

Moving a component of an imaging system

Granted: April 25, 2017
Patent Number: 9629589
Techniques for moving a component of an imaging system are described herein. The techniques may include an apparatus having a component bracket to attach to an imaging system component disposed within a gantry of the imaging system. The apparatus may include a platform bracket to attach to a movable platform of the imaging system, wherein the component bracket and the platform bracket are to be coupled to each other.

X-ray system and method with digital image acquisition

Granted: April 25, 2017
Patent Number: 9629591
An X-ray imaging system includes a digital X-ray detector configured to acquire X-ray image data without communication from a source controller and to send the X-ray image data to a portable detector control device for processing and image preview. The source controller is configured to command X-ray emissions of X-rays from an X-ray radiation source for image exposures.

X-ray photographing apparatus

Granted: April 25, 2017
Patent Number: 9629592
Disclosed herein is an X-ray photographing apparatus. The X-ray photographing apparatus uses a moving source and a tension spring in order to let a grid reciprocate for removing a scattered radiation. The moving source generates moving force moving the grid toward one side, and the tension spring applies tension force moving the grid toward the other side. According to the present invention, since the grid moves at a velocity close to a constant velocity, image quality is improved.

System and method for exhausting combustion gases from gas turbine engines

Granted: April 25, 2017
Patent Number: 9631542
A system includes a gas turbine engine that includes a combustor section having one or more combustors configured to generate combustion products and a turbine section having one or more turbine stages between an upstream end and a downstream end. The one or more turbine stages are driven by the combustion products. The gas turbine engine also includes an exhaust section disposed downstream from the downstream end of the turbine section. The exhaust section has an exhaust passage…

System and method for controlling operation of an engine

Granted: April 25, 2017
Patent Number: 9631569
A method involves comparing a determined operating parameter of an engine, with a predefined operating parameter. The method further involves controlling a fuel source and an ignition source of the engine so as to operate at least one engine cylinder in a skip fire mode for at least one cycle of a crank shaft when the determined operating parameter is greater than the predefined operating parameter. The controlling involves transitioning the fuel source from a normal mode to the skip…

System and method for thrust-speed control of a wind turbine

Granted: April 25, 2017
Patent Number: 9631606
The present subject matter is directed to a system and method for dynamically controlling a wind turbine. The method includes operating the wind turbine based on a thrust set point and a speed set point. A next step includes determining a desired change in actual speed of the wind turbine in response to control actuations starting from an instantaneous operating point. The method also includes determining a desired change in thrust of the wind turbine in response to control actuations…

Model-based controls for selective catalyst reduction systems

Granted: April 25, 2017
Patent Number: 9631776
Systems and methods are provided for controlling a selective catalyst reduction (SCR) system having a SCR reactor. A reductant slip set point indicative of a target slip is received as a control variable is to be utilized for maintaining an amount of a NOx composition included in a combustion gas below a selected limit. A signal transmitted by a sensor is received, and is indicative of the reductant slip downstream of the SCR reactor. An amount of a NOx reductant to be introduced to the…

Booster air heater for high moisture fuels

Granted: April 25, 2017
Patent Number: 9631809
A system for drying pulverized high moisture fuel for use in a selective catalytic reduction system equipped combustion system is provided. The combustion system includes a mill for pulverizing fuel, an air heater, two fuel gas streams at different temperatures, a booster air heater and a fuel duct for feeding dried pulverized fuel to a combustion furnace.

Support frame and method for assembly of a combustion module of a gas turbine

Granted: April 25, 2017
Patent Number: 9631812
A support frame for assembling a combustion module for a gas turbine includes a base plate disposed at a bottom end of the support frame and a support plate that is vertically separated from the base plate by one or more vertical support members. The support plate defines an opening that is sized to allow a portion of the combustion module to pass therethrough. A support block extends vertically from the base plate towards the support plate where the support block defines one or more…

Insert element for closing an opening inside a wall of a hot gas path component of a gas turbine and method for enhancing operational behaviour of a gas turbine

Granted: April 25, 2017
Patent Number: 9631813
An insert element for closing an opening inside a wall of a hot gas path component of a gas turbine includes a plate like body with an opening sided surface. The surface provides at least one first area which projects beyond at least one second area of said surface which surrounds the at least one first area frame-like. The at least one first area is encompassed by a circumferential edge corresponding in form and size to the opening such that the circumferential edge and the opening…

System and method for a turbine combustor

Granted: April 25, 2017
Patent Number: 9631815
A system includes a turbine combustor that includes a head end portion having a head end chamber, a combustion portion having a combustion chamber disposed downstream from the head end chamber, a cap disposed between the head end chamber and the combustion chamber, and a flow distributor configured to distribute at least one of an exhaust flow, an oxidant flow, an oxidant-exhaust mixture, or any combination thereof circumferentially around the head end chamber.

Dynamic voltage restoration system and method

Granted: April 25, 2017
Patent Number: 9634490
A system, in one embodiment, includes a voltage fault detection system. The voltage fault detection system may be configured to acquire a reference voltage signal from a power line to determine if a voltage sag condition is present in the power line, determine a correction voltage for correcting the voltage sag condition, use the reference voltage to produce the correction voltage, and apply the correction voltage to the power line.

Systems and methods for isolating a conduit enclosure using an adapter plate for an explosion proof motor

Granted: April 25, 2017
Patent Number: 9634536
An enclosure system includes a stator enclosure defining an enclosure opening, and an adapter having a first entry port, and defines a center cavity having a first volume. Enclosure system includes a conduit enclosure coupled to one or more of stator enclosure and adapter. Conduit enclosure includes a base member having at least one side wall, a rear wall coupled to side wall and defining a second entry port, an interior cavity, and a terminal connection block coupled to base member and…

Dual phase magnetic material component and method of forming

Granted: April 25, 2017
Patent Number: 9634549
A magnetic component having intermixed first and second regions, and a method of preparing that magnetic component are disclosed. The first region includes a magnetic phase and the second region includes a non-magnetic phase. The method includes mechanically masking pre-selected sections of a surface portion of the component by using a nitrogen stop-off material and heat-treating the component in a nitrogen-rich atmosphere at a temperature greater than about 900° C. Both the first and…

System and method for unified common mode voltage injection

Granted: April 25, 2017
Patent Number: 9634576
A power conversion system includes at least one multi-level power converter and a controller coupled to the at least one multi-level power converter. The controller includes a first CMV injection module and a second CMV injection module. The first CMV injection module generates a first CMV signal for modifying at least one voltage command to achieve a first function in association with operation of the power conversion system. The second CMV injection module generates a second CMV signal…

Control method for reducing torque ripple in an electrical machine

Granted: April 25, 2017
Patent Number: 9634585
A method of controlling torque ripple in an electrical machine that includes a field winding for creating nominally constant field current using DC current and an armature winding for creating a rotating magnetic field using AC current, calls for superimposing a spatially varying current component on to the DC current of the field winding. Other methods are also disclosed that are suitable for electrical machines that have a winding that is excited with nominal DC current including SRMs,…

Method and a generator system for operating a generator

Granted: April 25, 2017
Patent Number: 9634595
The present disclosure relates to a method and a generator system for operating a generator. The method for operating the generator includes exciting the field winding of a rotor of the generator by a first exciter device, driving a second exciter device while operating the generator with the first exciter device, and switching the second exciter device to excite the generator in case the first exciter device feeds to the generator not sufficient energy for operating the generator during…

System and method for overcurrent protection for a field controlled switch

Granted: April 25, 2017
Patent Number: 9634657
A method includes detecting current from a first terminal of the switch to a second terminal of the switch, wherein the current exceeds a current limit for a linear region of the switch. The method includes controlling a gate voltage of the switch from a first voltage to a second voltage. The second voltage is configured to enable the switch to operate in an active region of the switch. The method further includes opening the switch when the switch is operating in the active region.