| BHA Altair, LLC Patent applications |
| Patent application number | Title | Published |
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| 20160097324 | FILTRATION SYSTEM FOR USE IN A GAS TURBINE ENGINE ASSEMBLY AND METHOD OF ASSEMBLING THEREOF - A filtration system and methods of assembly and operation are provided. The filtration system includes an array of perforated tubes in flow communication with a flow of intake air. Each perforated tube comprises a solids inlet and a solids outlet. The system also includes a solids feed system comprising a feed line coupled in flow communication with said solids inlet and configured to channel sorbent material through each perforated tube in said array. The filtration system also includes a monitoring arrangement for monitoring a parameter associated with the intake air, and varying the operation of the system based upon said parameter. | 04-07-2016 |
| 20160061158 | FILTER WATER MANAGEMENT USING HYDROPHILIC MATERIAL - A media comprising a hydrophobic media layer and a hydrophilic matrix applied to one face of the hydrophobic media layer is provided. The media may be incorporated into a filter cartridge for an air filtration system for a gas turbine engine. The media may have the capability to wick droplets of water. | 03-03-2016 |
| 20150336041 | Segmented Filter Assembly - A filter assembly for mounting to an opening in a tube sheet of a filter system is provided. The filter assembly includes a plurality of filter elements and a mounting structure. Each filter element includes an extension of filter media, a first coupling portion, and a second coupling portion. The first and second coupling portions are attached to the filter media. The first and second coupling portions are connectable to one another to secure a first one of the plurality of filter elements to a second one of the plurality of filter elements such that fluid communication between the first and second filter elements is established when connected. The mounting structure is sized and configured to mount to the tube sheet adjacent the opening. The mounting structure includes a mounting structure coupling portion being connectable to the first coupling portions of the filter elements. | 11-26-2015 |
| 20150159603 | METHOD AND SYSTEM FOR TESTING FILTER ELEMENT PERFORMANCE - A system for testing at least one air filter element is provided. The system includes a test rig, wherein the test rig includes an elongated duct, and at least one measurement device coupled to the duct. The at least one measurement device is configured to measure at least one characteristic representative of a condition within the duct. At least one air filter element is coupled within the test rig. At least one first salt spray test is performed on the at least one air filter element. The collected salt spray water and equivalent amount of dry salt remaining in the test rig are quantified. At least one second salt spray test is performed on the at least one air filter element, wherein the at least one air filter element is dust loaded prior to the at least one second salt spray test. | 06-11-2015 |
| 20150159553 | METHODS FOR USE IN TESTING GAS TURBINE FILTERS - Methods of testing gas turbine filter elements under high or low temperature operating environments are provided. In one aspect, the method includes performing a fractional efficiency test on a filter. The method also includes heating or cooling the filter to a temperature that is higher or lower than an ambient temperature. The method further includes performing a second fractional efficiency test on the filter after the filter has been heated or cooled for a period of time at the temperature. | 06-11-2015 |
| 20150152785 | AIR INTAKE HOOD FOR TURBINE INLET FILTER HOUSE - An air intake hood for channeling an incoming air flow downward in a filter house. The intake hood includes an inlet that is inclined. | 06-04-2015 |
| 20150151236 | FILTER MEDIA AND METHOD OF FORMING THEREOF - A filter media is provided. The filter media includes a porous membrane material, and at least one fiber stitched into the porous membrane material. A property of the filter media is selected as a function of a stitch configuration of the at least one fiber in the filter media. | 06-04-2015 |
| 20150135664 | COALESCERS WITH MESHED COALESCING MEDIA - A coalescer includes a frame with at least one crossmember for securing a flexible coalescing net assembly. The coalescing net assembly is disposed across openings in the frame for capturing moisture in air flowing through the coalescer. The coalescing net assembly has an area greater than the frame area for increasing coalescing efficiency. | 05-21-2015 |
| 20150128803 | Assembly and Method for a Bag Filter - The present application provides a filtration unit for filtering a flow. The filtration unit may include one or more first layers and a second layer. The one or more first layers may include a prefilter layer and a wave layer. | 05-14-2015 |
| 20150128540 | GAS TURBINE FILTER AND METHODS OF ASSEMBLING SAME - Systems and methods are provided for a filter system with an internal support structure. An embodiment of the filter system includes a header frame, a support structure having at least one arm, and a filter unit having at least one pocket. The support structure extends between the header frame and the filter unit. In addition, the support structure is coupled to the filter unit by inserting the at least one arm of the support structure into the at least one pocket of the filter unit. | 05-14-2015 |
| 20150114229 | METHOD AND SYSTEM FOR ONLINE REPLACEMENT OF GAS TURBINE INLET AIR FILTER ELEMENTS - A method and system for online filter element replacement are provided. The system includes a filter chamber and a tubesheet dividing the filter chamber into a dirty air compartment and a clean air compartment, the tubesheet including a plurality of apertures therethrough. The system also includes a plurality of filter elements positioned in the dirty air compartment and coupled to the tubesheet in flow communication with a respective one of the plurality of apertures such that air entering the clean air compartment from the dirty air compartment passes through at least some of the plurality of filter elements and respective apertures and a shutter operatively positioned in the clean air compartment and configured to selectably cover at least one of the plurality of apertures. | 04-30-2015 |
| 20150114221 | Gas Turbine Inlet Air Filter Cleaning Control - A gas turbine inlet air filter house control system may obtain geospatial data for an area in which a gas turbine is located. The gas turbine inlet air filter house control system may determine filter cleaning parameters for the gas turbine based on the geospatial data and control the initiation and duration of the inlet air filter cleaning process. | 04-30-2015 |
| 20150113938 | WEATHER HOOD WATER REMOVAL SYSTEM AND METHOD FOR ASSEMBLY - An air intake system for use with a gas turbine is provided. The air intake system includes a weather hood coupled to a filter house. The air intake system also includes a prefilter assembly configured within said weather hood, wherein said prefilter assembly includes at least three air filtration units, including at least one moisture separator and at least one coalescing filter. | 04-30-2015 |
| 20150107199 | Cylindrical Filtration Apparatus Assembly - The present application provides a filtration apparatus assembly having a holding frame with a number of square holding frame apertures. The filtration apparatus assembly may include a cylindrical filter and a mounting frame. The mounting frame may include a mounting frame aperture sized for the cylindrical filter and a mounting frame flange sized for the square holding frame apertures. | 04-23-2015 |
| 20150101344 | Systems and Methods for Bypassing a Coalescer in a Gas Turbine Inlet - A system including an air intake subsystem having a housing is provided. A coalescer having a frame is disposed inside the housing. The system includes a mounting bracket, and a release mechanism coupled to the frame and the mounting bracket. The release mechanism is adapted to selectively release the frame. | 04-16-2015 |
| 20150096444 | NONWOVEN FELT WITH HOLLOW SPECIALTY POLYMER FIBERS FOR AIR FILTRATION - An air filter assembly includes a felt of hollow specialty polymer fibers having nonporous walls. | 04-09-2015 |
| 20150096443 | NONWOVEN FELT WITH HOLLOW COMMODITY POLYMER FIBERS FOR AIR FILTRATION - An air filter assembly includes a felt of hollow commodity polymer fibers having nonporous walls. | 04-09-2015 |
| 20150083659 | BICOMPONENT FIBER WITH SYSTEMS AND PROCESSES FOR MAKING - A bicomponent fiber is disclosed, in addition to systems and processes for making the bicomponent fiber. The bicomponent fiber can include a glass core and a polytetrafluoroethylene (PTFE) sheath circumferentially enclosing the glass core, wherein the bicomponent fiber has a diameter between approximately five micrometers and approximately twenty micrometers. | 03-26-2015 |
| 20150082758 | PULSE FILTER DESIGN - A filter element includes a first filter portion extending between a first end and an opposing second end. The first filter portion includes a first cross-sectional dimension that is substantially constant along a length of the first filter portion between the first end and the second end. The filter element includes a second filter portion extending between a third end and an opposing fourth end with the third end being located adjacent the second end. The third end has a third end cross-sectional dimension that substantially matches the first cross-sectional dimension. The fourth end has a fourth end cross-sectional dimension that is smaller than the third end cross-sectional dimension. | 03-26-2015 |
| 20150007720 | COALESCING MEDIA CLEANING SYSTEM AND METHOD - A filter assembly and method of operating the filter assembly includes a hinge attached to a first end of a filter while a lifting mechanism is attached to a second end of the filter. The lifting mechanism lifts and releases the second end of the filter causing an impact such that dust and debris caught in the filter is dislodged. | 01-08-2015 |
| 20140366733 | FILTER MEDIA AND METHOD OF FORMING THE SAME - A composite filter media is provided. The composite filter media includes a porous membrane material and a nonwoven felt material laminated to the porous membrane material. The nonwoven felt material includes an amount of amorphous fibers and an amount of crystalline fibers, and the amorphous fibers and the crystalline fibers are each fabricated from the same material. | 12-18-2014 |
| 20140360370 | MOISTURE SEPARATION SYSTEM FOR HIGH EFFICIENCY FILTRATION - An air treatment system and method that uses inertial moisture separators in two stages for removing moisture present in intake air entering the air treatment system, thereby increasing the effectiveness and lifespan of high efficiency filters that otherwise may become clogged by accumulating moisture. | 12-11-2014 |
| 20140360217 | COOLING SYSTEM FOR USE IN A TURBINE ASSEMBLY AND METHOD OF ASSEMBLY - A cooling system for use in a turbine assembly is provided. The cooling system includes a first filter configured to remove particles entrained in a flow of intake air, an array of nozzles downstream from the first filter, and a second filter downstream from the array. The array of nozzles is configured to facilitate reducing a temperature of the intake air, and the second filter is configured to repel cooling liquid discharged from the array of nozzles while allowing cooled intake air to flow therethrough. | 12-11-2014 |
| 20140360147 | FILTER ELEMENT WITH HIGH TEMPERATURE POLYMER RETAINING STRAPS AND METHOD OF MANUFACTURE - A filter element includes a filtration media formed into a tubular configuration. The filtration media includes a plurality of circumferentially spaced apart pleats. The filter element includes at least one retaining strap extending circumferentially around the filtration media to limit movement of the filtration media The at least one retaining strap has a ratio of flow direction tensile modulus to perpendicular direction tensile modulus of 1.5 or less. A method of fabricating a filter element is also provided. | 12-11-2014 |
| 20140273798 | DOOR ASSEMBLY FOR A FLUID HANDLING SYSTEM - Embodiments of a door assembly with a door component that can open and close in response to pressure of fluids that flow in a fluid handling system. These embodiments utilize elements to seat and lock the door in position without the need for manual intervention and/or interaction, e.g., by a technician and/or maintenance personnel. However, these elements do not need to support the weight of the door and, thus, provide a more robust and cost effective design to achieve automated and reliable operation necessary for use in fluid handling systems. | 09-18-2014 |
| 20140260138 | RADIAL PLEAT DESIGN AND COLLAPSIBLE FILTER ELEMENT - A filter element for filtering a fluid flowing through the filter element. The filter element includes a pleat pack that extends about an axis and that has an internal volume. The pleat pack includes a filter media for filtering out particulate from the fluid. The filter media is pleated. The pleats extend out along planes that are transverse to the axis. An associated method of providing a filter element that filters a fluid flowing through the filter element is provided. | 09-18-2014 |
| 20140251129 | AUTOMATIC COALESCER REPLACEMENT SYSTEM AND METHOD - An inlet air treatment system and method comprises a used coalescer having intake air passing therethrough and an unused coalescer not having intake air passing therethrough. A mechanism automatically adjusts the inlet air treatment system such that the used coalescer is no longer in the airflow and the unused coalescer is in the airflow. | 09-11-2014 |
| 20140242714 | AIR MONITORING SYSTEM AND METHOD - A filter element having filter media for filtering air passing therethrough and a detection strip attached thereto comprising a chemical compound that generates a chemical reaction with certain molecules that contact the detection strip. | 08-28-2014 |
| 20140237968 | BI-COMPONENT FIBER AND FILTER MEDIA INCLUDING BI-COMPONENT FIBERS - A bi-component fiber is provided. The bi-component fiber includes a sheath formed of polyphenylene sulfide (PPS) and a core formed of a high glass transition polyester. A PPS material of the sheath has a higher melting point than a high glass transition polyester material of the core. The core is at least partially crystallized whereby the high glass transition polyester material of the core effectively has a higher softening point than a softening point of the PPS material of the sheath. | 08-28-2014 |
| 20140237966 | GAS TURBINE INLET FILTER WITH REPLACEABLE MEDIA CARTRIDGES - A filter arrangement for a system within which fluid is filtered and an associated method of providing the arrangement. A frame of the arrangement includes an outer periphery shape that is complementary to a shape for location of the filter arrangement therein and a plurality of filter cartridge seat slots arranged in V-shaped pairs. Each filter cartridge seat slot provides a sub-aperture for removably receiving a respective filter cartridge in a direction transverse to the flow proceeding through the sub-aperture. The filter arrangement includes a plurality of filter cartridges that are removably located within respective filter cartridge seat slots. The filter arrangement includes a non-permanent sealing arrangement between the filter cartridges and the frame so that flow does not by-pass filter media. The non-permanent arrangement permits removal of the filter cartridges from the frame and replacement with new filter cartridges upon the frame. | 08-28-2014 |
| 20140232033 | Porous Membrane - A membrane comprises a sheet of expanded polytetrafluoroethylene. The sheet includes a first extrudate made from a first PTFE fine powder resin mixed with processing lubricant at a first lube rate. A second extrudate is made from the first PTFE fine powder resin mixed with processing lubricant at the first lube rate. The first and second extrudates combined into an integrated tape structure that is stretched in first and second directions. The sheet is porous and has a gas permeability of at least 0.1 CFM according to ASTM D737. The sheet has an average Mullen Hydrostatic Burst pressure in the range of 135 psi to 175 psi according to ASTM D751. | 08-21-2014 |
| 20140202334 | FILTER SYSTEM AND METHOD FOR LEAK IDENTIFICATION - A filter system and method utilizing a plurality of filters each with an electrically conductive material portion for conducting an electric current while the filter maintains a tight seal and for not conducting the electric current when the filter does not maintain the tight seal. | 07-24-2014 |
| 20140202235 | CARTRIDGE FILTER ROBUSTNESS TESTING - A method includes providing at least one filter element in a test rig. The at least one filter element separates a clean side from a dirty side within the test rig. The pressure differential between the clean side and the dirty side is measured. The pressure differential between the clean side and the dirty side is increased by filtering particulate matter and fluid from an air flow within the test rig. The at least one filter element is cleaned. The previous three steps are repeated to replicate the conditions the at least one filter element is subjected to during substantially the entire life cycle of the at least one filter element. | 07-24-2014 |
| 20140182254 | FILTER DEVICE AND FILTRATION SYSTEM COMPRISED THEREOF - This disclosure proposes a new structure for pre-filter devices, and filtration systems in general, that facilitates tasks necessary to maintain performance of pre-filter banks in the filtration system. Embodiments of this structure allow the pre-filter devices to translate on corresponding structural members that make up the supporting structure of the pre-filter bank. When in position, the proposed pre-filter devices can mate with adjacent pre-filter devices to form a substantially unitary structure that prohibits fluid from flowing unfiltered to areas downstream of the filtration system. | 07-03-2014 |
| 20140178667 | Oleophobic Laminated Article - An article comprising a microporous membrane. A first porous fabric is laminated to a first side of the microporous membrane. A second porous fabric is laminated to a second opposite side of the microporous membrane to form a laminate with the membrane and the first porous fabric. The laminate has two fabric sides separated by the microporous membrane. A treatment material is applied to the laminate to form a treated laminate. The treated laminate has an oil resistance of at least a number 7 determined by AATCC 118 testing on both fabric sides and has an air permeability through the treated laminate of at least 0.01 CFM per square foot determined by ASTM D737 testing. | 06-26-2014 |
| 20140144320 | CARTRIDGE FILTER DIMENSIONAL COMPENSATOR - A cartridge filter insert includes a body, an internal opening, and an exterior surface. The internal opening is configured to permit an airflow through the body. The exterior surface is configured to removably engage a surface of a cartridge filter having an outlet. The internal opening has an inside dimension smaller than an inside dimension of the outlet of the cartridge filter to effectively reduce the inside dimension of the outlet. An inlet filter house including the cartridge filter and the cartridge filter insert are also provided. Methods of filtering a fluid using the cartridge filter and the cartridge filter insert within the inlet filter house are also provided. | 05-29-2014 |
| 20140144171 | Method of Wetting Evaporative Cooler Media Through a Fabric Distribution Layer - An evaporative cooler, and associated method, that includes an evaporative pad including a liquid coolant-receiving surface at which a liquid coolant distributed to the evaporative pad is received and thereafter passes into the evaporative pad. The evaporative cooler also includes a liquid coolant distribution trough that includes an upper portion configured to hold liquid coolant and a lower portion contiguous with the upper portion. The lower portion includes an opening and a fabric distribution layer in place over the opening through which the liquid coolant held in the upper portion of the liquid coolant distribution trough passes and is distributed to the liquid coolant-receiving surface of the evaporative pad. | 05-29-2014 |
| 20140137524 | REVERSE V-CELL OR MINIPLEAT FILTER WITH PLEAT PACK MECHANICALLY SEALED - A filter arrangement for a system within which fluid is filtered and an associated method of providing the arrangement. A frame of the arrangement includes an outer periphery shape that is complementary to a shape for location of the filter arrangement therein and a plurality of filter pleat pack locations. At each filter pleat pack location the frame includes at least one portion having a saw-tooth contoured surface. A plurality of filter pleat packs each includes a plurality of pleats. Each filter pleat pack is removably located at a respective filter pleat pack location of the frame, with the pleats of the filter pleat pack mating against the saw-tooth contoured surface. A plurality of removable retainers that non-permanently hold the filter pleat packs. Each retainer has at least one saw-tooth contoured surface that mates against the pleats so that the pleats of the filter pleat pack are sandwiched. | 05-22-2014 |
| 20140123853 | OFFLINE WATER WASH SYSTEM FOR INLET FILTERS AND FILTER HOUSE - A filter house and cleaning system arrangement for a turbine system and an associated method. The arrangement includes a filter house and filter elements within the filter house. The arrangement includes nozzles that spray a fluid on the filter elements to provide cleaning of the filter elements. The nozzles have structure that permits the nozzles to move within the filter house to adjust where on the filter elements the fluid is sprayed. The arrangement includes a detection device configured to detect a level of cleanliness and provide an output that indicates the level of cleanliness. | 05-08-2014 |
