Abstract: Embodiments of overhead mounting systems are described herein. Various embodiments may include a channel, one or more covers, and one or more cover spacers. The channel may include a channel base, at least two channel walls, and at least two channel ends. The channel walls may be connected perpendicularly to the channel base such that the channel is u-shaped. The channel walls may each comprise a plurality of channel wall openings. The covers may include a cover base, at least two cover walls, and at least two cover ends. The cover walls may each include one or more inward protrusions. The cover ends may be concaved along the cover base such that a cover base length is less than a cover wall length. The cover ends may be concaved along one or more of the cover walls.

Abstract: A portable terminal holder includes a supporting part, a plug, and a holding part. The supporting part includes a bottom part and a back part, where the back part bends and extends from an edge of the bottom part, the bottom part is configured to bear a frame of a portable terminal, and the back part is configured to bear a back of the portable terminal. The plug bends and extends from the bottom part, the plug and the back part extend in a same direction relative to the bottom part, a spacing is provided between the plug and the back part, the plug is configured to be inserted into a socket provided on the frame of the portable terminal, and the plug and the supporting part jointly position the portable terminal.

Abstract: An oil nozzle assembly includes a nozzle body and a nozzle insert. The nozzle body includes a main portion, a tip portion, a collar, and a lip. The tip portion is connected to the main portion. The collar is positioned at an interface between the main portion and the tip portion. The lip extends radially outward from the tip portion and includes an outer diameter. The nozzle insert includes a sleeve, an endwall connected to the sleeve, an orifice, and a retention element. The orifice is disposed in the endwall and is fluidly connected to the tip portion of the nozzle body. The retention element extends radially inward from the sleeve. A portion of the retention element includes an inner diameter that is less than the outer diameter of the lip.

Abstract: A pressure vessel (2) for the storage of fluid has a core (10) made of metal or polymer and is wrapped either completely or partially from outside with a high strength fibers (21, 22) for reinforcement wherein one of the reinforcing fibers is a metal wire (21) of a single filament or cables of multi filaments having strength from 2000 MPa to 6000 MPa. The wire has a plastic ductility of over 20% in reduction in area (RA) at tensile fracture. The metal wire (21) is made of steel or nickel or titanium or their respective alloys. The core (10) of the vessel (2) is first wrapped with a resin covered ceramic fibers such as carbon, fiberglass and subsequently wrapped with the metal wire (21) with or without other fibers (22). The metal wires (21) can be of different diameters in parallel or cabled forms.

Abstract: A system and method for dispensing subcooled CO2 liquid includes a vacuum insulated bulk tank containing a supply of the liquid CO2. A pressure builder having an inlet in communication with a bottom portion of the bulk tank and an outlet in communication with a top portion of the bulk tank vaporizes liquid from the bulk tank and delivers the resulting gas to the top portion of the tank so as to pressurize it. A baffle is positioned within the bulk tank. Below the baffle, a refrigeration system is connected to the heat exchanger coil so that a refrigerant fluid is supplied to and received from the heat exchanger coil so that the liquid below the baffle is subcooled and the liquid above the baffle is stratified. A liquid fill line is in communication with the interior of the bulk tank via a fill line opening that is positioned above the baffle. A liquid feed line is in communication with a bottom portion of the interior of the bulk tank so that subcooled liquid may be dispensed.

Abstract: A method of transporting natural gas by liquefaction of natural gas at ambient temperature, achieved by mixing the natural gas at high pressure with a hydrocarbon that is a stable liquid at ambient temperature and ambient pressure. The hydrocarbon liquid may be crude oil or a distillate of crude oil. The method includes: liquefaction: mixing the natural gas with the hydrocarbon liquid at an ambient temperature and a high pressure to generate a liquid mixture, which contains the natural gas dissolved in the hydrocarbon liquid; shipping: transporting the liquid mixture using a marine tanker, during which the liquid mixture is maintained at ambient temperature and the high pressure; and regasification: at the destination, releasing a gas from the liquid mixture by lowering the pressure of the liquid mixture. The hydrocarbon liquid may be used multiple times.

Abstract: An LN storage tank is disclosed. The LNG storage tank includes: a lower insulation board for insulating LNG from the outside; a heating member placed on the lower insulation board; a main secondary barrier attached on the heating member; an upper insulation board attached on part of the main secondary barrier; and an auxiliary secondary barrier attached on the other part of the main secondary barrier, wherein a first adhesive layer may be interposed between the main secondary barrier and the auxiliary secondary barrier.

Abstract: Apparatus for use with fluid-processing plant configured to generate and store pressurized fluid. Fluid-processing plant is spaced apart from body of water. Apparatus includes variable-buoyancy assembly positioned in body of water in such way that buoyancy force urges variable-buoyancy assembly to move toward surface of body of water. Apparatus also includes non-collapsible fluid-line assembly positionally anchored, at least in part, underground in such way that non-collapsible fluid-line assembly extends, at least in part, into body of water. Non-collapsible fluid-line assembly fluidly connects fluid-processing plant and variable-buoyancy assembly together in such way that non-collapsible fluid-line assembly conveys pressurized fluid between fluid-processing plant and variable-buoyancy assembly.

Abstract: A method of forming a drag reducing polymer formulation. The method begins by forming a drag reducing polymer. A hydrocarbon additive is then incorporated with the drag reducing polymer to form a drag reducing polymer formulation. The drag reducing polymer formulation is then used as a drag reducer in hydrocarbon pipelines.

Abstract: Pipeline transport of hydrocarbons detect the moisture accumulation location along the pipeline and increase effectiveness of the drying process. Drying air moisture content reduction is obtained by the installing additional intermediate air drying devices in by-pass lines at block valve station along the pipeline to be dried. Purging is proceeded until normalized dew point temperature value of the outcoming air being achieved. Purging is interrupted for 12 hours or more, both upstream and downstream ends of pipeline leaving hermetically closed, and resumed with intermediate air drying devices disabled, continuously measuring the moisture content of the outcoming drying air, fixing the moment when the moisture accumulation in the surrounding air.

Abstract: The invention relates to a hose (7) featuring an integrated system for detecting damage and comprising a hose wall (2, 4) in which at least one transponder (8) is embedded. The hose (7) is characterized in that an antenna (12) is also embedded in the hose wall (2, 4) so that an electromagnetic coupling (10) can be established between the antenna (12) and the transponder (8), the magnitude and/or quality of the electromagnetic coupling (10) being a measure of the degree of damage to the hose wall (2, 4).

Abstract: An LED illumination device capable of disassembling, assembling and combining modules and slidably adjusting locations of modules, and corresponding control method for LED modules. The illumination device comprises a housing and LED modules. At least one slideway is arranged in the housing. The LED modules are removably arranged in any location in any slideways, the device can quickly realize multiple illumination solutions of changing luminance and illuminant colors, so that the LED illumination device can be conveniently applied to various operating environments and can be freely converted in the solutions of applying to various operating environments. Moreover, the control method for the LED modules can implement flexible and varied control on each LED module via an electrode orbit so that the LED illumination device can realize multiple preset illumination solutions, thereby achieving a landscape illumination effect.

Abstract: A light emitting diode system includes a light emitting diode lamp string, a signal voltage unit and a control unit. The light emitting diode lamp string includes a plurality of light emitting diode units. The control unit drives the signal voltage unit to adjust a voltage of the light emitting diode lamp string continuously and repeatedly so the voltage of the light emitting diode lamp string is a predetermined voltage, to form a light signal comprising a plurality of pulse waves to send the light signal to the light emitting diode lamp string. When each of the light emitting diode units receives the light signal, each of the light emitting diode units performs a conversion and a decoding for the light signal to obtain a lighting mode of the light signal, and then each of the light emitting diode units lights based on the lighting mode.

Abstract: A concealer plate for a lighting fixture includes a first concealer plate surface, a second concealer plate surface, and two or more magnets. The magnets are recessed in the first concealer plate surface such that the magnets are inset from the first concealer plate surface by approximately a predetermined depth. Each one of the magnets is configured to magnetically engage one of a number of fasteners protruding from a mounting portion of a trim of the lighting fixture by a distance that is approximately equal to the predetermined depth. Accordingly, the second concealer plate surface hides the fasteners from view. The concealer plate hides one or more fasteners exposed on the lighting fixture while avoiding any interference in the operation of the lighting fixture and is easily installed onto currently existing lighting fixtures.

Abstract: An accent lamp (10) having a solid state light source (4), such as LEDs, is attachable to a rear surface of an automotive headlamp (40) opposite the light-generating capsule (44). Accent lamp (10) has first retaining member (20), such as a clamp, formed above printed circuit board (8) on which LED (4) is mounted. Headlamp base (60) defines light passageway (45), formed as a light guide (42), extending from outermost peripheral surface (63) to an upper surface (61) on which lamp capsule (44) is retained. Accent lamp (10) is readily detachably mounted to headlamp (40), preferably by resilient first and second retaining members (20, 24), and, when mounted, can be biased to promote optical coupling of light source (4) to light guide (42).

Abstract: A lighting device that includes a series of optical waveguides each able to allow rays of light to be waveguided between an entry face, arranged at a proximal end of the optical waveguide, and an exit face. The device is formed of at least two subassemblies produced separately and each including at least a portion of the series of optical waveguides and first structural elements for retaining the waveguides in position and joining successive optical waveguides of the subassembly together, the two subassemblies being able to be assembled to form the device through collaboration of the first structural elements. The distal ends of at least two successive optical waveguides of the series are connected by a piece of translucent or transparent flexible material.

Abstract: A light distributing device for a vehicle includes a focusing lens that concentrates light input to a rear surface thereof to form an image point on a front side thereof, a shield that is arranged at the image point and has an opening through which a portion of the light, which passes through the image point, passes, and a mirror that reflects at least a portion of the light that passed through the opening to the front side of the focusing lens.

Abstract: In vehicle headlamps of the prior art, a low-beam light distribution pattern and a high-beam distribution pattern could not be obtained in a direct illumination lens-type lamp unit. The present invention is provided with a semiconductor light source, a lens, a light control member, and a drive member. The lens is composed of a main lens section and an auxiliary lens section. The drive member positions the light control member in a first position and a second position in a moveable and switchable manner. Consequently, the present invention enables a low-beam light distribution pattern and a high-beam light distribution pattern to be obtained in a direct illumination lens-type lamp unit.

Abstract: A light guide body includes a first rod-like light guide portion and second rod-like light guide portions which are spaced from the first rod-like light guide portion in the vertical direction and plate-like light guide portions which are disposed so as to link their circumferential surfaces. Light that reaches the first rod-like light guide portion via the plate-like light guide portions after being emitted from light sources and entering the second rod-like light guide portions is emitted forward of the lamp from the circumferential surface of the first rod-like light guide portion.

Abstract: A light mask type optical device includes an optical element. The optical element is formed by a light inlet face, a light outlet face opposite to the light inlet face, and a plurality of grating structures of micro meter (?m) scale disposed on the light outlet face. The grating structure includes a first slant face, a second slant face, and a plane surface between the first slant face and the second slant face. In application, a direct downward light emitted by a light source is reflected by the first slant face and the second slant face, to form a circulating light in the grating structure, and that is combined with the direct downward light to output from the light outlet face in achieving reduced glare and increased lumen in application.

Abstract: An LED module is formed using a method of mounting secondary lens arrays over light-emitting diode arrays on a printed circuit board. In the LED module, a lens array assembly is mounted to a printed circuit board. The lens array assembly comprises a silicone free form lens array which is mounted in a lens holder by aligning markings on the lens holder with markings on the free form lens array. The lens array assembly is correctly positioned, in an x-y plane, on the printed circuit board by the engagement of positioning pins formed on a surface of the free form lens array with corresponding recesses formed in the printed circuit board and is retained in the correct position by clips integrally formed with the lens holder. The positioning pins are shaped to allow for thermal changes due to the operating temperature range of the LED module.

Abstract: A lighting panel comprises a light source and a light modifying panel positioned over the light source, in the form of a set of protrusions over the base, the protrusions facing the light source. The protrusions comprise circular/elliptical/polygonal cylinders or cone sections with a small cone taper angle.

Abstract: A lighting device (100) includes: a surface light source (1); a first lens (L1) having a first focal point (F1), the first lens being provided on the light exit surface side of the surface light source; and a second lens (L2) having a second focal point (F2), the second lens being provided on a light exit surface side of the first lens, the surface light source, the first lens, and the second lens being configured such that a first virtual image (I1) is formed by the first lens and a second virtual image (I2) is formed by the second lens, wherein the first virtual image (I1) is formed between the second focal point (F2) and the first lens, and the second focal point (F2) is on a side opposite to the light source side relative to a predetermined focal position f?.

Abstract: The disclosure relates to an LED lamp and an optical lens thereof. The optical lens includes a dome structure and a protrusion structure, the dome structure has an external surface, the protrusion structure is disposed on the external surface of the dome structure; the protrusion structure has a first optical surface and a first optical side connected with the first optical surface, the first optical surface and the external surface are connected to form a first boundary, the first optical side and the first boundary are inclined. The disclosure further provides an LED lamp. The LED lamp and the optical lens thereof above can improve optical efficiency.

Abstract: Metalenses and technologies incorporating the same are disclosed. In some embodiments, the metalenses are in the form of a hybrid multiregion collimating metalens that includes a first region and a second region, wherein the hybrid multiregion collimating metalens is configured to collimate (e.g., visible) light incident thereon. In some instances the first region includes an array of first unit cells that contain subwavelength spaced nanostructures, such that the first region functions as a subwavelength high contrast grating (SWHCG), whereas the second region includes an array of second unit cell, wherein the array of second unit cells includes a near periodic annular arrangement of nanostructures such that the second region approximates the functionality of a locally periodic radial diffraction grating. Lighting devices including such metalenses are also disclosed.

Abstract: A marker system includes: a first marker; and a second marker; wherein the first marker and the second marker are configured to emit light from one or more light sources coupled to the first marker and the second marker; and wherein the first marker and the second marker are configured to emit the light for detection by a camera. A method performed using a marker system includes: generating light using one or more light sources; emitting the light at a plurality of markers that are coupled to the light sources; and detecting the light emitted from the plurality of markers using a camera; wherein the act of detecting comprises using one or more filters to reduce ambient light to a level that corresponds with a noise level of the camera while allowing light emitted from the markers to be imaged by the camera.

Abstract: An electromagnetic shielding assembly may include a transparent substrate layer and a transparent active layer positioned with respect to the substrate, wherein the active layer is configured to absorb electromagnetic radiation having a first wavelength and emit electromagnetic radiation having a second wavelength, the second wavelength being different than the first wavelength, the active layer includes fluorescent molecules combined with a base material, the fluorescent molecules being configured to absorb electromagnetic radiation having the first wavelength and emit the electromagnetic radiation having the second wavelength, wherein the first wavelength is in a visible electromagnetic spectrum and the second wavelength is in a non-visible electromagnetic spectrum.

Abstract: Shielding radio frequency interference (RFI) using reflector optics is disclosed. A simplified non-sealed reflector is used in conjunction with a mounting system, resulting in desired amounts of visible and non-visible light using radio frequency driven luminaries and emitters without sacrificing output or coverage area. Configurations are disclosed such that achieved RF grounding is compliant with FCC regulations. Accordingly, the disclosed RFI shielding improves optical design options, increased output, and decreased manufacturing costs over traditional sealed enclosures.

Abstract: The illuminating standoff device to support and illuminate transparent, semi-transparent, and/or a translucent light diffusing member. Thus, the standoff provides support and attachment to the wall or support structure, while at the same time allowing light to pass through said standoff and/or projecting or inducing light into the diffusing member while supporting and retaining its position. This allows one to support and secure the diffusing member, and illuminate the diffusing member, both through a single device.

Abstract: An assembly for mounting a light fixture in a hole in a ceiling panel and including an annular trim ring that's held upward against a lower surface of a ceiling panel by the light fixture to be mounted, such that the trim ring spans an annular gap between such light fixture and the ceiling panel hole. A top plate is carried by the ceiling panel across the ceiling panel hole and includes a top plate hole that receives the light fixture to be mounted such that the top plate spans an annular gap between the light fixture and the ceiling panel hole. A mount supports the light fixture on the top plate in a position holding the trim ring up against the lower surface of the ceiling panel.

Abstract: A magnetic headlight assembly. The magnetic headlight assembly includes a housing having a light assembly and one or more magnetic coupling mechanisms that can attach the headlight assembly to a working appliance, such as a lawnmower. The magnetic coupling mechanisms allow for the adjustment, attachment, and removal of the light assembly from a variety of working appliances without the need for tools. The light assembly includes one or more light sources that are controllable from a control box that can be selectively activated by a user for improved vision in low and no light conditions. In one embodiment, multiple magnetic headlight assemblies are electrically connected and independently controllable from each other.

Abstract: A LED light fixture is disclosed with an adjustable mounting mechanism. The adjustable mounting mechanism includes lever features that are mechanically coupled to the adjustable flanges. The lever features ratchet or move downward to sandwich portions of a ceiling that surround a ceiling recess hole between the adjustable flanges and the lever features to secure the LED light fixture within the ceiling recess hole. The LED light fixture also includes a power source with a dimmer switch that allows DC power output from the power unit to be adjusted and dim light output emitted from the LED light fixture.

Abstract: This invention relates to a light system for use in indoor or outdoor environments. More specifically, it provides a foldable, portable, self-supporting shadow-reducing utility light system capable of illuminating multi-dimensional areas, a kit and a method of use therein.

Abstract: A flashlight mounting system includes a first elastomeric mount portion, a second elastomeric mount portion, and a fastener having a shaft that secures the first and second elastomeric mount portions to each other. The first and second elastomeric mount portions are able to rotate relative to each other about the shaft. The flashlight mounting system further includes a first strap that passes through the first elastomeric mount portion to secure the first elastomeric mount portion to a flashlight, and a second strap that passes through the second elastomeric mount portion to secure the second elastomeric mount portion to a support structure.

Abstract: A method and system for a passive headset with dynamically controlled LEDs, where the method comprises, in a passive headset comprising speakers, light emitting diodes (LEDs), and LED driver circuitry: receiving an electrical signal that includes an audio signal and an LED control signal, filtering out the LED control signal from the received electrical signal and communicating a resulting output audio signal to the speakers, filtering out the audio signal from the received electrical signal and communicating a resulting output LED control signal to the LED driver circuitry, generating a bias voltage for each of the one or more LEDs utilizing the LED driver circuitry and the output LED control signal, and configuring a light output of the LED utilizing the generated bias voltage. The amplifier may include a mixer that sums an audio signal with a control signal.

Abstract: An LED tube lamp is disclosed. An installation detection circuit is configured in the LED tube lamp configured to receive an external driving signal. The installation detection circuit includes: a pulse generating circuit configured to output one or more pulse signals; wherein the installation detection circuit is configured to detect during one or more pulse signals whether the LED tube lamp is properly installed on a lamp socket, based on detecting a signal generated from the external driving signal; and a switch circuit coupled to the pulse generating circuit, wherein the one or more pulse signals control turning on and off of the switch circuit.

Abstract: An active thermal management device and method, in which a phase change material unit, comprising at least one phase change material arranged in series or parallel, is connectable to a source of thermal energy, such as LEDs at a first operating condition. Thermal energy from the source of thermal energy is stored in the phase change material unit. The phase change material unit is connectable to a sink of thermal energy, such as second LEDs at a second operating condition. The thermal energy stored in the phase change material unit may be re-used. The first operating condition can include a 15V supply voltage, and the second operating condition can include either no supply voltage, or a lower 9V supply voltage of 9V, such that heat from the first LEDs, which may be over-temperature, can pre-heat the second LEDs, improving thermal and optical matching.

Abstract: A backlight module and a display device are disclosed, which relate to the field of display technology and overcome the problem of poor heat dissipation effect of the whole display device. The backlight module comprises a backplane, a light source component fixed to the backplane, and a first heat dissipation layer at least arranged in part of the overlapping zone for the backplane and the light source component. The display device comprises a display panel and the backlight module mentioned above, and the backlight module provided by the embodiment is applied in the display device.

Abstract: An integrated ceiling device (80, 120) includes an electronics assembly (56) and a mechanical arrangement (20). The mechanical arrangement includes a housing (22), a heat dissipating structure (24), and support arms (26). The housing is configured to retain the electronics assembly. The heat dissipating structure includes a lamp seat (50) for receiving a light source (54), and a central opening (34) surrounded by fins (36). The support arms extend between and interconnect the housing with the heat dissipating structure. The housing is positioned within the central opening and is spaced apart from the fins of the heat dissipating structure to enable a free flow of air in an air gap (42) between the housing (22) and the structure (24). The electronics assembly may include a plurality of elements (160, 162, 164, 166) retained in the housing which are spaced apart from the heat dissipating structure.

Abstract: A light emitting module includes a module body, a light source unit, a plurality of heat dissipation fins, an air hole formed through the module body for allowing air to flow therethrough, an air guide unit formed at an edge of the air hole such that the air guide unit communicates with the air hole to guide air, and an optical cover covering the light source unit. The optical cover has a cover hole at a location corresponding to the air hole. The optical cover includes an inner partition wall located around a periphery of the cover hole and extending into the module body at the periphery of the air hole. The optical cover also includes an outer partition wall located at a periphery of the optical cover and defining a closed space in which the light source unit is located, the outer partition wall extending into the module body.

Abstract: A purse illumination assembly including a power source, a light emitting portion, a voice-sensitive switch, and a circuit assembly connecting the light emitting portion to the power source through the voice-sensitive switch. The light emitting portion may be a light emitting fabric or may include EL wire alone or in combination with LED lights to provide both lighting and a decorative effect. A driver circuit may be included for driving both the EL wire and the LED lights.

Abstract: A media player device having an integrated ground-illuminating flashlight provides hands-free ground illumination while walking. The media player device includes a lanyard attached to a first end of a housing, a first lamp located at a second end of the housing for use as an ordinary flashlight, and a second lamp located on a front side of the housing and directed at an acute angle from the housing toward the second end of the housing, so that the ground in front of a wearer of the media player device is illuminated. A speaker for reproducing the audio generated by the media player device may also be located on the front of the housing to provide audibility of the playback audio, or may alternatively be located on the first end or side of the housing. Controls are provided on the front or side of the housing to provide easy access when wearing the device.

Abstract: An acoustic lighting tile (100) comprises a cavity (110) having a side wall (120) forming an opening in the cavity (110). An acoustic element (130) absorbs sound incident to the cavity (110). A light source carrier (140) is arranged along the side wall (120) and extends a first distance (D1) along a horizontal direction into the cavity (110). A light source (150) is mounted on the Slight source carrier (140) and emits light (L1, L2, L3) in a vertical main direction into the cavity (110), away from the opening of the cavity (110). A reflective surface (160) reflects at least a subset of the light (L1, L2, L3) emitted by the light source (150) towards the opening. A diffusing element (170) at least partially covers the opening at a second distance (D2) from the light source carrier (140) and diffuses light passing through the opening. The second distance (D2) is at least as large as the first distance (D1).

Abstract: An emergency lighting apparatus comprises an elongate substrate adapted to pivot and hang from a door knob like a lever and define a handhold in a first end and support a motion sensor and a light array at a second end. The emergency lighting apparatus also includes a motion detecting lighting device comprising the motion sensor and the light array. A method is disclosed for hanging the elongate substrate on the door knob via the handhold for egress lighting and removing the elongate substrate from the door knob for use as a flashlight via the handhold.

Abstract: Modern steam generators typically include a radiant section and a convection section. Due to differing performance requirements of the radiant and convection sections, the radiant section often has a round cross-section, while the convection section often has a rectangular cross-section. Previous designs utilized a target wall to effect the transition. An angled transition section is disclosed herein that substantially eliminates the target wall and/or the reverse target and provides a corresponding improvement in steam generator efficiency.

Abstract: A nozzle in a burner assembly is configured to produce a flame. The nozzle is configured to include a fuel-discharge outlet and to conduct fuel along a path in the nozzle to the fuel-discharge outlet. Pressurized primary oxygen is provided to mix with fuel discharged by the nozzle to produce a mixture that can be ignited to produce a flame. Staged oxygen is provided to the flame in a region downstream from the nozzle.

Abstract: A system for fluidizing and conveying a powdery product is provided. The system includes plurality of powder-locking and metering vessels, the vessels each having a conveying line for the powdery product and a control mechanism for the mass flow of the powdery product. The conveying lines are brought together to form a common conveying line and are supplied to a remover of the powdery product. The powder-locking and metering vessels are alternatively fed with the powdery product and tensioned with the fluidizing gas under operating pressure. The control mechanisms of the powder-locking and metering vessels are activated in such a manner that the mass flow sum of powdery product in the conveying lines is identical to the desired value for the mass flow of powdery product to the remover of the powdery product.

Abstract: A boiler system having a series of boilers. Each boiler includes a shell having an upstream end, a downstream end, and a hollow interior. The boilers also have an oxidizer inlet entering the hollow interior adjacent the upstream end of the shell and a fuel nozzle positioned adjacent the upstream end of the shell for introducing fuel into the hollow interior of the shell. Each boiler includes a flue duct connected to the shell adjacent the downstream end for transporting flue gas from the hollow interior. Oxygen is delivered to the oxidizer inlet of the first boiler in the series. Flue gas from the immediately preceding boiler in the series is delivered through the oxidizer inlet of each boiler subsequent to the first boiler in the series.

Abstract: A combustor having U-shaped cooling channels is disclosed. The combustor may include a shell having an impingement hole, a liner spaced from the shell and having an effusion hole; a first partition spanning between the shell and the liner, a second partition spaced from the first partition and spanning between the shell and the liner; and a U-shaped channel defined between the shell and the liner and defined in part by the wall, the channel having upstream and downstream ends both adjacent the first partition and separated by the wall, wherein the impingement hole communicates with the upstream end and the effusion hole communicates with the downstream end.

Abstract: A swirler includes a swirler body and a plurality of axial swirl vanes extending radially outward from the swirler body. At least one of the swirler body or vanes includes a spring channel defined therethrough. A fuel injector for a gas turbine engine can include an inner air swirler and/or outer air swirler as described above.