Abstract: A fluid container and method for inhibiting the growth of microbes in liquid nutrient in a container, the container having an interior surface having a metal-ion sequestering agent for removing a designated metal ion from the liquid nutrient for inhibiting growth of microbes in the liquid nutrient.

Abstract: An inventive method, system and apparatus are provided for syringe handling, and more particularly, for syringe labeling, filling and capping operations. To facilitate syringe handling, an inventive apparatus includes a plurality of syringe bodies interconnected in a predetermined orientation by a belt. Such belt may be of pliable construction and may define a predetermined spacing in between adjacent ones of the syringe bodies, such predetermined spacing corresponding with a distance between holders provided in a handling apparatus. The syringe handling apparatus may provide for the placement of contents-related information on belt segments between adjacent syringe bodies and for separating the belt segments, wherein a flap is left interconnected to each syringe body. The syringe handling apparatus may alternatively or also provide for automated filling of the syringe bodies wherein cap removal, filling and cap replacement operations are completed free from manual handling.

Abstract: An agricultural bagger apparatus and method for compacting feed into a horizontally deployed bag including a compression mechanism and an input hopper that receives agricultural feed. The hopper has a sloping wall and a lower end exit chute located to transfer the feed into the primary compression mechanism (e.g., a rotating toothed cylinder). The tapered hopper causes the feed to bridge, stopping the feed from falling through the chute. A new distribution mechanism in the hopper sweeps the feed adjacent to the sloping wall to prevent feed bridging. By preventing the feed from clogging, there is less reason to risk one's safety by foolishly inserting their limb into the hopper. Some embodiments also compact feed in the upper portion of the tunnel, for example, by reciprocating a hinged piston above the primary compression mechanism. This increases the compaction on the top portion of the tunnel without unduly juicing the feed.

Abstract: The present invention relates to an automated system for pharmaceutical singulation, counting and dispensing, whereby a bulk of stored pharmaceutical units are singulated into a single file line for counting and dispensing. With reference to the drawings, the pharmaceutical singulation, counting and dispensing system comprises generally, a deck assembly (A), a cylindrical chamber (B), a rotatable transport ring (C), a plurality of adjustable fingers (D), an adjustable reciprocating member (E), an adjustable rotatable member (F), a counting system (G), a hopper (H), and a control system (I).

Abstract: A case inserting apparatus for inserting a square case 1 into a carton 2 with an optical disk D loaded includes a bucket conveyor to introduce and dispose a case 1 opposite the opening portion 2a of the carton 2 at a case insertion station 100, a contact portion 6 to press against the longitudinal end surface 1d of the case 1 to incline the case 1 on a case placement surface at the case insertion station 100, a pusher 3 to press against a lateral end surface 1b of the case 1 to move the case 1 toward the carton 2 so that a first corner C1 of the case 1 which has been most close to the opening portion 2a of the carton 2 can be inserted into the opening portion 2a of the carton 2 and thereafter to insert the entire case 1 into the carton 2, and a contact portion 7 to press against a second corner C2 of the case 1, which is disposed laterally opposite the first corner C1 of the case 1, in a substantially lateral direction with the first corner C1 of the case 1 inserted into the opening portion 2a of the carton 2

Abstract: A system for heat-shrinking a film onto an open-topped container is provided, including at least one reflective cup having a reflective interior surface, and at least one radiant energy source. The reflective cup and the radiant energy source may be rotationally mounted. The interior surface of the reflective cup has as least an elliptical portion and a parabolic portion.

Abstract: A method for removing contaminating gaseous components, such as CO2 and/or H2S, from a contaminated natural gas stream. The method includes the steps of expanding the contaminated gas stream in an expander to form an expanded gas stream; allowing at least part of the contaminants in the expanded gas stream to liquify to form a dispersion of a contaminants enriched liquid phase in a contaminants depleted gaseous phase; and separating at least part of the contaminants enriched liquid phase from the contaminants depleted gaseous phase in one or more centrifugal separators.

Abstract: A bag and cage filter assembly for filtering particulates out of a stream of gas, which includes a plurality of elongated filter bag sections with a support cage, The bag sections are fastened together, as may be the cage sections.

Abstract: The present invention comprises a breather system and a method of using the system. The assembly has a breather tube, a baffle system at least partially located within the breather tube and a drain back tube connected to the breather tube. The baffle system has a plurality of baffles designed to prevent lubricant from escaping a housing while still allowing air to pass into and out of the housing.

Abstract: The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, movement of the cartridge, is provided between the primary filter cartridge and the housing. The preferred primary filter cartridge is conical in shape. A preferred optional safety or secondary filter cartridge is shown. Preferred methods of assembly and use are provided.

Abstract: The honeycomb structure is an aggregate type honeycomb formed from a plurality of cells assembled together side by side laterally and cell walls isolating adjacent ones of the cells from each other by joining with a sealant layer (adhesive layer) or integral type honeycomb monolith, and a sealant layer (coating layer) provided on the outer surface of the aggregate type honeycomb or the integral type honeycomb monolith. The sealant layer (adhesive layer) or a sealant layer (coating layer) formed on the outer surface of aggregate type honeycomb or the integral type honeycomb monolith contains oxide particles, inorganic binder and a coloring agent.

Abstract: An automatic end of row detection and compacting sequence for a cotton harvesting machine which is initiated responsive to the machine ceasing harvesting at the end of a crop row, as represented by a condition such as raising a picker drum of the machine from a harvesting position to a non-harvesting position. Steps of the sequence can include ceasing operation of augers of compactor apparatus located in the cotton receiver are turned off, and moving the compactor apparatus downwardly within a cotton receiver of the machine and against cotton accumulated in the lower region of the receiver, one or more times, for further and better compacting the cotton. Then, when the machine is aligned with a new swath or row and a condition such as the picker unit being lowered to the harvesting position, normal operation of the compactor apparatus can be resumed.

Abstract: An automatic end of row detection and compacting sequence for a cotton harvesting machine which is initiated responsive to the machine ceasing harvesting at the end of a crop row, as represented by a condition such as raising a picker drum of the machine from a harvesting position to a non-harvesting position. Steps of the sequence can include ceasing operation of augers of compactor apparatus located in the cotton receiver are turned off, and moving the compactor apparatus downwardly within a cotton receiver of the machine and against cotton accumulated in the lower region of the receiver, one or more times, for further and better compacting the cotton. Then, when the machine is aligned with a new swath or row and a condition such as the picker unit being lowered to the harvesting position, normal operation of the compactor apparatus can be resumed.

Abstract: An automatic end of row detection and compacting sequence for a cotton harvesting machine which is initiated responsive to the machine ceasing harvesting at the end of a crop row, as represented by a condition such as raising a picker drum of the machine from a harvesting position to a non-harvesting position. Steps of the sequence can include ceasing operation of augers of compactor apparatus located in the cotton receiver are turned off, and moving the compactor apparatus downwardly within a cotton receiver of the machine and against cotton accumulated in the lower region of the receiver, one or more times, for further and better compacting the cotton. Then, when the machine is aligned with a new swath or row and a condition such as the picker unit being lowered to the harvesting position, normal operation of the compactor apparatus can be resumed.

Abstract: An automatic end of row detection and compacting sequence for a cotton harvesting machine which is initiated responsive to the machine ceasing harvesting at the end of a crop row, as represented by a condition such as raising a picker drum of the machine from a harvesting position to a non-harvesting position. Steps of the sequence can include ceasing operation of augers of compactor apparatus located in the cotton receiver are turned off, and moving the compactor apparatus downwardly within a cotton receiver of the machine and against cotton accumulated in the lower region of the receiver, one or more times, for further and better compacting the cotton. Then, when the machine is aligned with a new swath or row and a condition such as the picker unit being lowered to the harvesting position, normal operation of the compactor apparatus can be resumed.

Abstract: A grass collection container for a grass mowing machine includes a bag or hopper attached to a support frame under the plastic top cover with air permeable panels, and a flexible sound barrier curtain attached to the support frame over the air permeable panels. The flexible sound barrier curtain has a thickness of between about 1 mm and about 5 mm. An air passage is provided between the bag or hopper and the flexible sound barrier curtain.

Abstract: A front harvesting attachment for a self-propelled harvesting machine having a central part pivotally mounted onto an intake channel of the harvesting machine, side parts that are moveable relative to the central part between an operating position, wherein the side parts are positioned on either side of the central part, and a raised transport position. Adjusting devices move the side parts between the operation and raised transport positions. Immobilizing devices selectively prevent movement of the front harvesting attachment relative to the intake channel during transport of the harvesting attachment. The immobilizing devices are coupled to the adjusting devices such that the immobilizing devices are actuated, thereby preventing movement of the front harvesting attachment relative to the intake channel, when the adjusting devices have moved the side parts to the raised transport position.

Abstract: A cotton compacting apparatus and method for a cotton compactor chamber of a cotton module builder or packager, including a frame movable downwardly against cotton for compacting the cotton into a cotton module or package, the frame including at least one auger having a right hand helical flight and at least one auger having a left hand flight, the opposite hand augers being counter-rotatable in a manner for effecting desired movement of cotton within the module builder for building a module having a desired shape and density.

Abstract: Device for generating and controlling a yarn reserve to be installed on service trolleys with open-end spinning frames, for reattachment and start-up interventions on the spinning unit, comprising a mouthpiece which sucks and generates in its interior a loop of reserve yarn, equipped, inside, with sensors for detecting the dimension of the loop of reserve yarn and consequently piloting the reattachment procedure and reconsignment of the bobbin to its standard functioning.

Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their untwisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.

Abstract: An article of furniture is made from elongated polymer filaments. The polymer filaments may be monofilaments or plural filaments which are twisted together and heat set to prevent their twisting during the subsequent weaving process. The heat setting of the polymer filaments is achieved by heating the polymer material either before or after the twisting process.

Abstract: A channel plate for an open-end rotor spinning device for closing a rotor housing charged with underpressure in which a spinning rotor rotates, having a channel plate tower extending into the spinning rotor, in whose shell face the outlet opening of a fiber guide channel is arranged and in whose front side a yarn draw-off nozzle can be fixed. A concavely arched transition surface adjoins a cylindrical part of the shell face, and the channel plate tower has a diameter at the height of the rotor edge of the spinning rotor such that an annular gap of maximally 2 mm width between the spinning rotor and the channel plate tower results during spinning. At most one half of the outlet opening of the fiber guide channel is arranged in the area of the cylindrical shell face, and the remaining part in the arched transition surface. The wall area of the outlet opening remotest from the front side is at a distance to the center longitudinal axis of the channel plate at least 0.

Abstract: An emissions control system efficiently reduces combustion waste products emitted from a trailer-mounted mobile electrical power generation system. The invention also reduces noise levels associated with power generation. The invention includes several road-transportable duct modules that can be connected together. One module directs the flow of combustion gases from the exhaust of a combustion engine in a power trailer and also provides noise attenuation. Another module mixes the combustion gases with a urea mixture. A third duct module houses a catalyst for removing combustion waste products.

Abstract: In a control system for a gas turbine engine, a degradation level of the gas turbine engine is estimated according to a deviation of an output of an internal temperature sensor when the engine is producing a target output at a target rotational speed from a prescribed reference temperature, and a correction value for correcting the engine operation map is computed according to the degradation level of the gas turbine engine. Thereby, even when the degradation of the engine has progressed to a certain extent typically owing to the aging of various component parts, the engine operation map can be corrected in such a manner that the level of fuel supply is optimally selected and the acceleration, efficiency and other items of performance of the engine can be improved.

Abstract: A vehicle with a body, an engine, and an engine driven fan. The engine is connected to the body. The engine driven fan is mounted to the body for providing thrust capable of effecting controlled motion of the vehicle in at least one direction. The fan has a fan section drivingly connected to the engine. The fan section has fan blades. At least one of the fan blades has a tip jet and boundary layer control slot formed therein.

Abstract: A cooling system for use in an engine having an element to be cooled includes at least one cooling channel on a first side of the element, at least one cooling channel on a second side of the element, and the at least one cooling channel on the first side communicating with the at least one channel on the second side in a nose region of the element so as to form a cooling circuit. The cooling system has particular utility in cooling interior and exterior surfaces of a movable cowl inlet flap used in a scramjet engine.

Abstract: An exhaust gas purifying apparatus provided in an exhaust passage connected with an engine includes an upstream catalyst that is provided in the exhaust passage, and that removes NOx; a downstream catalyst that is provided downstream of the upstream catalyst in the exhaust passage; and a supply device that supplies an oxygen-activating component to a portion of the exhaust passage located between the upstream catalyst and the downstream catalyst. In the exhaust gas purifying apparatus, the upstream catalyst removes NOx, and then an oxygen-activating component is supplied to the exhaust gas. Further, the downstream catalyst removes a hydrocarbon compound contained in the exhaust gas.

Abstract: The exhaust gas purifier includes a fuel addition valve, an NOx catalytic converter, and a catalyst loaded PM filter. The catalyst temperature of catalyst loaded PM filter is increased to a target temperature by adding fuel to the exhaust gas from fuel addition valve, whereby PM trapped on the filter is purified. When the NOx catalytic converter is deteriorated, the target catalyst temperature of catalyst loaded PM filter is changed to a value larger than the target catalyst temperature when the NOx catalytic converter is in a normal state.

Abstract: An exhaust system for an internal combustion engine is disclosed. The exhaust system includes at least one main exhaust path connected to at least one cylinder, an exhaust recirculation path that is branched out from the main exhaust path so that part of exhaust gas is recirculated to an inlet system, a bypass that is branched out from the exhaust recirculation path in which the bypass has a higher path resistance than that of the exhaust recirculation path and a bypass catalytic converter that is provided in the bypass.

Abstract: A diesel particulate filter (DPF) for trapping exhaust particulates is located in an exhaust passage of a diesel engine. Deposit amounts of a soluble organic fraction (SOF) as an organic solvent soluble component and soot as a solid carbon component of exhaust particulate components deposited in the DPF are estimated respectively. When the SOF deposit amount reaches an SOF elimination execution deposit amount, the DPF is heated to or over relatively low SOF combustion temperature to execute SOF elimination treatment. When the soot deposit amount reaches a soot elimination execution deposit amount, the DPF is heated to or over relatively high soot combustion temperature to execute soot elimination treatment. The SOF elimination treatment is executed before the SOF becomes excessive to prevent rapid combustion of the soot due to combustion of the SOF.

Abstract: An electronic controller integrates a rate of progress dK of thermal degradation of exhaust purifying catalyst at every predetermined time period, to calculate degree of thermal degradation K of the exhaust purifying catalyst, when the state of thermal degradation of the exhaust purifying catalyst is to be detected. By comparing the degree of thermal degradation K with a defect determining value S, whether the exhaust purifying catalyst is defective because of thermal degradation or not is determined. In calculating the degree of thermal degradation K, the electronic controller calculates the rate of progress dK of thermal degradation in the predetermined time period based on the integrated value of rate of progress dK of thermal degradation up to the last time (degree of thermal degradation K) and on the temperature T of exhaust purifying catalyst at that time, and adds the same to the integrated value up to the last time.

Abstract: Whether discharge of high-concentration, unburned fuel is indicated or not is determined based on air-fuel ratio AF, calculated air-fuel ratio AFc and exhaust temperature thco (S110, S112, S114). If it is determined that high-concentration, unburned fuel would be discharged (“no” in any of S110, S112, S114), amount of fuel addition per one addition is decreased in PM regeneration control (S116). Therefore, in a state where high concentration HC is to be discharged to the downstream of an exhaust purifying filter, the amount of fuel addition at one time is immediately decreased, so that discharge of high-concentration HC to the outside can be prevented, and generation of white smoke can reliably be prevented.

Abstract: The invention concerns a hydrodynamic coupling or a hydrodynamic brake with the following features: having an impeller and a turbine wheel, which together form a toroidal working chamber; the impeller sits on a driveshaft, and the turbine wheel sits on a driven shaft; having a housing, which encloses the impeller and, together with the impeller, forms a retaining space, which is conductively connected to the working chamber; having an inlet and an outlet for the filling and emptying of the working chamber; the driveshaft supports a dynamic pressure pump, which projects into the retaining space and which can be placed in rotation around the driveshaft (20); the dynamic pressure pump has an inlet in its radial outer region and is connected to the outlet by its radial inner region; a connection that is resistant to rotation can be produced and/or released again selectively between the dynamic pressure pump and the driveshaft.

Abstract: An anti-condensation control system for devices driven by or utilizing decompressing air is provided. The system includes a supply of compressed air connected to a compressed air-utilizing device. A source of heated fluid is provided and is connected to a heat exchanger that transfers heat from the heated fluid to the compressed air. The compressed air is heated in the heat exchanger sufficiently that upon decompression the temperature of the device is not lowered to the ambient dew point. The system is particularly applicable to devices utilizing compressed air for the spraying of liquid materials.

Abstract: A pneumatic generator cycle system includes a table, a plurality of cylinders, a carried, and a pneumatic generator. The cylinders exhaust air from the air outlet of the cylinders by weight of the carrier and the carried object, and cause the tablet to slope towards location of the carried object when the moving carried moves to the location of one of the cylinders. Simultaneously, pneumatic generator generates electricity via importing air to the air inlet of the pneumatic generator, and air flow through the outlet of the generator to the inlet of the cylinder, finally back to the cylinder exhausted the air before. The tablet is restored to balanced status due to previous process, and the tablet is raised to keep the carrier moving to the next cylinder.

Abstract: In order to solve a problem in a conventional device in which an operation lever is stepped on by a foot to supply oil to an elevating/lowering cylinder, in that since oil supply to the elevating/lowering cylinder is stopped every time the operation lever is stepped on, a seat part stops every time oil supply to the hydraulic cylinder is stopped, and in that such a device gives the person who receives technician's work shock and an uncomfortable feeling, a chair elevating/lowering hydraulic device is composed of a foot pump 3 which absorbs oil by an ascent of an operation lever 1, which discharges oil stored by a stepping-on of the operation lever, and which discharges stored oil by a stepping-on of the operation lever to a lowest position, a check valve 5 which is opened by the oil pressure of the oil discharged from the foot pump, which is opened when the foot pump is lowered to the lowest position, and which allows the oil from the non-return side to pass to allow it to return to an oil tank through the fo

Abstract: An energy transducer device for positioning at the ocean floor for converting wave action at an ocean surface above the transducer to electrical current, the device comprising a mounting base 38, 91, 106, 112, 123, 133, 143, 153, 163, and 179 configured for positioning at the ocean floor below a location of possible wave action wherein overhead wave displacement generates reciprocating water displacement along a flow path F near the ocean floor; and an electro-mechanical transducer 22, 72, 92, 100, 110, 120, 130, 140, 150, 160, 170, 180 coupled to the mounting base and configured for positioning within the flow path and responsive to the reciprocating water movement along the flow path to generate electrical current.

Abstract: The invention relates to a circuit (NK) for cooling charge air (LL) in a motor vehicle comprising a turbocharger that is provided with a circulating pump (5) for the circuit (NK). Said pump (5) is coupled to a turbine (2) and forms a turbine/pump combination (1) along with the turbine (2).

Abstract: An ECU (electronic control unit) determines whether a turbo charger is defective or not based on degree of deviation between a target boost pressure Pimtrg and an actual boost pressure Pim of the turbo charger. Further, ECU estimates exhaust gas pressure of an exhaust passage from the internal combustion engine to the turbo charger based on a state of engine operation, and determines whether or not the estimated exhaust gas pressure is relatively low. When it is determined that the exhaust gas pressure is relatively low, the manner of defect determination is changed such that the determination of defect is not readily made.

Abstract: An electrically controlled turbocharger having a substantially vertically oriented shaft interconnecting a turbine and a compressor. The vertical orientation serves to eliminate the effects of gravity on the rotating components. Placing the turbine vertically above the motor and compressor and provides additional cooling through convection of heat produced by hot exhaust gas flowing through the turbine. A lubricating system utilizes scavenged air from the compressor to draw lubricating oil through internal passages of the motor housing to maintain a desirable oil sump level, ventilate the auxiliary induction motor, and provide pressure to the oil seals of the motor cavity.

Abstract: A process for driving a prime mover, said process comprising a) positioning a selective membrane between a liquid and a solution having a higher osmotic potential than the liquid, such that the solution becomes pressurised by the influx of liquid across the membrane, b) using the pressure generated in the solution to drive a prime mover, c) recovering the solution, d) separating at least some of the solvent from the solution to form a residual product, and e) recycling the separated solvent and/or the residual product of step d) to step a).

Abstract: A device for utilizing waste heat from a heat engine comprises a Rankine cycle including a pump, a heating device, an expansion device, and a condenser device, and a controller for controlling an operation of the Rankine cycle. The controller calculates an optimum heat collection amount (Qho) as a heat value to be collected from waste heat of the engine, wherein the heat collection amount (Qho) is calculated as an optimum amount in relation to a potential maximum heat radiation amount (Qco) to be radiated at the condenser device. The controller calculates an optimum flow amount (G) of refrigerant corresponding to the optimum heat collection amount (Qho), so that a maximum driving power (L) is generated at the expansion device.

Abstract: Apparatus and processes are provided for combusting hydrocarbon-containing waste fuel with an oxidizer, preferably liquid oxygen, and producing a substantially clean exhaust gas and a separate high purity steam product (e.g., superheated steam) that can be used to generate electrical power. The apparatus includes a plurality of combustion chambers in series with means to control the combustion temperature while facilitating complete combustion. The apparatus and method are useful for transforming waste materials, particularly solid and liquid wastes, such as the rubber from scrap tires into non-hazardous materials and energy.

Abstract: A process to convert heat into power is set forth wherein, to make the cycle more suitable to low grade heat, the working fluid remains substantially in the liquid state after being heat exchanged against the heat source and a dense fluid expander is used in place of a conventional vapor expander to subsequently work expand the liquid working fluid.

Abstract: A cyclonic combustor comprising a combustion liner forming a combustion chamber having a generally cylindrical shape, a biomass feed inlet for receiving biomass particles under pressure, wherein the biomass feed inlet is formed so that the biomass particles are introduced into the ignition zone of the combustion chamber with a tangential component relative to the longitudinal axis of the combustion liner, and a plurality of air tuyeres formed through the combustion liner for receiving compressed air, wherein the plurality of air tuyeres are arranged to introduce the compressed air into the combustion chamber with a tangential component relative to the longitudinal axis of the combustion liner. A direct-fired biomass-fueled pressurized gas turbine system comprising a pressurized feed system, the cyclonic combustor, and a gas turbine. Methods of operating a cyclonic combustor and methods for direct firing a gas turbine.

Abstract: A gas turbine plant comprises an air compressor, gas turbine including at least one high temperature section, a driven equipment, which are operatively connected in series, a gas turbine combustor arranged between the air compressor and the gas turbine, a fuel system disposed for supplying a fuel to the gas turbine combustor, and a heat exchange section for heating the fuel from the fuel by means of a high pressure air as a heating medium fed from the air compressor.

Abstract: A controlled hot flap shutter for a turbojet nozzle includes a friction surface made of metal, and including straight lateral flanks to reduce the gap between each controlled hot flap shutter and the tracking flap shutters adjacent thereto.

Abstract: The jet engine of the invention comprises an exhaust nozzle of variable section, comprising at least one flap pivot mounted about a pin, the pin being joined to the fixed structure of the jet engine via two braces each comprising a bore for housing the pin, the flap being pivot commanded by an actuating cylinder, connected to two fasteners which each comprise a bore through which the pin passes and about which they rotate. The jet engine is characterized by the fact that the pin, the bores of the braces and bores of the fasteners are arranged so that the contacts between the pin with the bore walls of the braces and with the bore walls of the fasteners are made over convex surfaces. Therefore, when in operation, in the event of pin bending the contact surfaces follow this convex shape and are suitably distributed.

Abstract: A power plant that includes two combustors in which a particulate containing fuel like coal is burned in one combustor and a non-particulate or clean fuel is burned in the other combustor, and where a heat exchanger is sued to transfer heat from the particulate combustion process to compressed air stream leading into the non-particulate combustor. The outlet from the heat exchanger containing the particulate combustion product is delivered to a heat recovery steam generator to produce steam and drive a turbine. The non-particulate combustion product from is used to drive a second turbine, and the outlet from the turbine is delivered to the inlet of the particulate combustor to be mixed with a particulate containing fuel. The invention allows for the use of a relatively cheap fuel such as coal to be used in a gas turbine power producing plant.

Abstract: A catalytic oxidation module (28) for a gas turbine engine (10) includes a bundle (50) of tubular elements (30) separating a first fluid flow of a combustion mixture (24) from a second fluid flow (e.g., 26). Each of the tubular elements has an inlet end (42) and an outlet end (44) in fluid communication with a downstream plenum (36) and a respective end portion (60) comprising a plurality of spaced apart longitudinal fingers (58). The fingers of each tubular element are joined at abutting fingers of respective adjacent elements to retain the tubes at the respective end portions with sufficient flexibility to allow relative movement between the adjacent tubular elements. A catalyst (32) is disposed on respective surfaces of a plurality of the tubular elements exposed to at least one of the first fluid flow and second fluid flow.