Abstract: A flue gas scrubbing system for fossil fuel power plant boilers in which the flue gas traverses an air heater from the boiler and an electrostatic or another particulate removal unit before fully or partially passing through a heat exchanger which is used to reheat the clean gas produced by scrubbing all or part of the crude flue gas. To prevent water droplets in the clean gas from entering the heat exchanger, a portion of the crude gas or preferably a recirculated portion of the reheated clean gas is introduced into said clean gas before it enters the heat exchanger with or without further heating, e.g. in indirect heat exchange with a portion of the crude gas branched from a location upstream of the air heater.

Abstract: The apparatus includes a housing that is divided into two parallel passages. A fan in one passage causes air from the outside of a building to flow through one of the passages into the building and a fan in the other passage causes air to be exhausted from inside the building to the outside. A flapper valve prevents entrance of air into the building through either passage when the fans are not operating. A series of media disks, two embodiments of which are disclosed, constitute successive stages, picking up heat and/or moisture from one passage and transferring the heat and/or moisture to the other passage as the disks are rotated within recesses formed in stationary separators. A special drive mechanism is utilized for rotating the disks. Provision is also made for spraying the disks in order to clean them and/or to control the humidity within the building.

Abstract: A regenerator with a hollow cylindrical heat exchange roller which is provided with a jacket of heat carrier material with separated flow regions that are passed through by a flow medium emitting heat and a flow medium receiving heat. The hollow cylindrical roller has a partition wall which separates the flow regions. The flow media pass through the regions by substantially radial passages through the jacket and transverse to the axis of rotation of the heat exchange roller. A housing which holds the roller is provided with radial inlet and outlet channels for the flow media. These channels are displaced from one another by substantially 90.degree..

Abstract: A self-contained heat recovery system for residential and commercial laundry dryers combines the principles of regenerative heat recovery with utilization of the dryer's existing drive apparatus to accomplish operation of the heat recovery system. The invention includes a rotary regenerative heat exchanger designed to permit planar adjustment of its surface; peripheral and airstream isolation seals to prevent loss of heat exchanger thermal effectiveness; apparatus for transmitting rotational forces from the laundry dryer tumbler to the rotary heat exchanger; cabinetry to function as a means of attaching the heat recovery system to the laundry dryer, as well as to provide airflow plenum chambers adjacent to the rotary heat exchanger to utilize existing airflow capabilities of the laundry dryer; cabinetry to further serve as structural support for rotary heat exchanger and its associated power transmission components.

Abstract: A heat exchanger for the extraction and re-use of heat and/or moisture from gas flows comprising: a housing (3) forming a duct section for gas flows; a rotor (7) which has a plurality of air passages extending therethrough; and a guide arrangement (9, 10, 11) for carrying the rotor (7), which arrangement is movable laterally of the housing (3) to carry the rotor (7) between an inserted position and an at least partially extracted position. A drive (21) for driving the rotor (7) can be movable jointly with said rotor (7). In an expedient embodiment, the rotor bearing is located, optionally together with the drive, on a support member (10, 11) which is stiff against both torsion and bending and which is movable on guide rails. This support member extends expediently by means of two carrying members (10) next to the two major faces of said rotor (7), which are movable on said rails in the housing (3).

Abstract: This invention provides a rotary heat regenerator which includes a regenerator wheel in which the regenerator matrix is formed of at least one strip of synthetic organic plastic wound onto a central hub, with suitable spacing means being formed in the strip to form gas passages. Inexpensive means is provided to stiffen the wheel to impart lateral strength and rotational stability. In one embodiment of the invention, radial portions of the face of the matrix are fastened together by fusing, by an adhesive, or both. In another embodiment of the invention, radial apertures are formed in the wheel by forcing a heated tool, radially into the wheel periphery so that the surfaces of the strip layers of the matrix are fused together, forming a hollow cylinder bounded by a continuous layer of plastic. To impart further rigidity to the wheel, the hollow cylinder may be filled with a reinforcing rod of plastic or metal.

Abstract: The disclosed air conditioner comprises a suction and an exhaust blower connected to a common electric motor and disposed on a suction and an exhaust passageway adjacent to a suction and an exhaust port on the outdoor side respectively. The suction passageway crosses the exhaust passageway in a heat exchanger and is connected to an indoor exhaust port. A humidifier is disposed between the heat exchanger and an indoor suction ports to humidify and cooler the sucked indoor air within the heat exchanger. Also a reclaimable dehumidifier may be disposed adjacent to the suction blower to decrease the humidity of the sucked outdoor air.

Abstract: An air conditioning system comprises a first air duct having an inlet port and an exhaust port opening into a room, a room air circulating fan for introducing the air inside the room into the first air duct through the inlet port and discharging the air into the room through the exhaust port of the first air duct, solar heat collector for producing hot air by utilizing solar heat, a second air duct adjacent to the first air duct on the inlet port side thereof, hot air feeding fan for feeding the hot air from the solar heat collector into the second air duct, a rotary total heat exchanger for dehumidification disposed between said first and second air ducts so as to extend severally in the two ducts, a third air duct adjacent to the first air duct on the downstream side of the rotary total heat exchanger, outside air feeding fan for feeding the outside air into the third air duct, a stationary multi-diaphragm-type sensible heat exchanger for cooling disposed between the first and third air ducts so as to be lo

Abstract: A rotary regenerative heat exchanger wherein radial plates are connected to radial plate pins which engage a pair of core plates disposed about a rotor shaft and which permit axial, radial, and rotational movement.

Abstract: A rotary regenerative heat exchanger (2) for transferring heat from a hot fluid to a cold fluid by means of an assembly (30) of heat transfer element which is alternately contacted with the hot and cold fluid. The heat transfer element assembly (30) is comprised of a plurality of first and second heat absorbent plates (32,34) stacked alternately in spaced relationship. The spacing between adjacent first and second plates (32,34) are maintained apart by spacers which comprise bilobed folds (38A and 38B) crimped in the first plates (32) and second plates (34), respectively. The pitch of the folds (38B) is opposite to that of the folds (38A) to prevent nesting between adjacent plates.

Abstract: A rotary regenerative air heater assemby (20) wherein a gas damper (18) is mounted directly atop the gas inlet (41) to air heater rotor (30). In order to permit removal of heat transfer material element baskets (40), an access opening (52) is provided in the gas damper (18). Track means (60) for supporting and guiding a hoist (62) are disposed in the duct (26) above the access opening (52) in the gas damper. Element baskets (40) may be lifted from the rotor (30) by the hoist (62) upwardly through the access opening (52) in the gas damper for removal and replacement.

Abstract: Rotary regenerative heat exchange apparatus having a rotor carrying a mass of heat absorbent element that is alternately exposed to hot and cold fluids. Heat from the hot fluid is first transferred to the cool element, and upon rotation of the rotor is then transferred to the cool fluid flowing therethrough. The rotor and rotor housing that encloses the rotor are supported separately upon independent columns whereby there can be no transmission of force therebetween to induce sympathetic distortion of either the rotor or the rotor housing.

Abstract: A trunnion sealing means for a rotary regenerative heat exchange apparatus. The sealing means is separated into two independent portions. The first portion is an air seal 34 that lies concentrically around a continuously moving trunnion 32. A supply of pressurized air is supplied thereto to preclude the leakage of fluid from the rotor of the rotary regenerative heat exchange apparatus. A second portion of said seal comprises a spool 56 radially spaced from the trunnion and having walls that are permitted to move relatively only an insignificant amount not sufficient to abrade or otherwise harm a packing material 36 therein.

Abstract: Heat-transferring elements for regenerative heat exchange. The elements are embodied as rigid hollow spheres or balls, or as hollow polyhedrons, with the free inner space or chamber thereof being partially filled with a heat-conducting liquid as well as vapor from this liquid. The hollow sphere may be provided with an elastic outer shell with reinforcing elements arranged in the interior thereof. The heat-transferring elements may be utilized as a whirl layer and/or static layer.

Abstract: A metal heat recuperation wheel (12) wherein a number of structural metal spokes (38) extend radially from the core (22) through or along the metal heat exchange medium (36) into a heavy metal rim (30) to provide thermal stability necessary for gap seals (18, 20) on the rim and face of the wheel.

Abstract: A method of improving the thermal shock resistance of a honeycombed structure through which fluids flow and formed by joining a plurality of cellular segments to one another along their peripheral walls, by providing discontinuities through the joints formed between the adjoining segments in the direction of the fluid flow through the structure so as to lessen temperature differences occurring in the joint area, to provide the structure with greater flexibility and to act as crack arrestors lessening the transmission of stresses between adjoining segments and through the joints. In two preferred embodiments, the invention is practiced in forming a heat recovery wheel by joining a plurality of cellular segments to one another with cement which is striped to the segments so as to form a plurality of hollow, straight walled, channels extending essentially axially through some or all of the joint areas of the resulting wheel.

Abstract: The thermal shock resistance of a honeycombed structure or a structure having a honeycombed surface formed by bonding together a plurality of cellular segments each having a honeycombed face forming a portion of the structure or surface of the structure, respectively, is improved by recessing the bond joints between the joined cellular segments from the surface. The thermal shock resistance of a heat recovery wheel operated in a counterflow heat exchanger system and formed from joined cellular segments is improved by recessing the bond joints joining the cellular segments, preferably approximately one-half inch (12.7 mm), from the face of the wheel exposed to the gases at their highest temperatures.

Abstract: Disclosed is a novel mounting structure for a rotatable heat exchanger, sometimes known as a heat recovery wheel. The mounting structure includes a hub portion on at least one side of the wheel and axially aligned therewith with at least three radially movable shoes situated within the bore of the wheel and coupled to the hub portion. A torsion bar is connected to the hub which applies equal radial forces to each of the shoes whereby the shoes are biased against the wheel at the periphery of the bore and equally displaced from the axis of the wheel. The aforementioned arrangement provides a mounting which is self centering and yet which permits differential radial expansion of a metal hub with respect to a ceramic wheel.

Abstract: Disclosed is a mounting device for a ceramic heat recovery wheel having a central bore therein. A metal hub is situated in the bore having a plurality of radially movable shoes for fastening the hub to the wheel. The radially movable shoes each have a radially directed stem with a contact portion abutting the ceramic wheel. The contact portion has a substantially greater cross-sectional area than the stem and in the preferred embodiment is a double cantilevered beam extending from the stem. The cantilevered beams are permitted to bow or flex when subjected to extreme temperatures, thereby permitting radial displacement of the shoe without subjection of the ceramic disk to extreme tensile forces which might cause its breakage.

Abstract: Disclosed is an improved ceramic heat recovery wheel driven on a shaft containing a metal hub which may be driven without slippage between the wheel and the hub. The wheel includes a splined metal shaft which mates with the disk including a plurality of radially extending keys equi-angularly spaced about its circumference. The ceramic disk includes an equal plurality of radially extending keyways which mate with the keys. In one embodiment, the keys are situated on only one side of the bore of the ceramic disk and the keyways do not extend through the bore. On the opposite face of the disk, a retainer plate surrounds the shaft. An axial force is applied to the retainer plate for restraining movement of the wheel in the axial direction.

Abstract: A thermal energy exchanging device is described as having a stationary, hollow cylindrical gas distributing member around which a closed, hollow torus-shaped member rotates. The stationary member is longitudinally and transversely divided into four compartments. The hollow enclosure of the rotatable member is longitudinally divided into a plurality of pie-shaped sections which contain thermal energy responsive material. Sealing means are provided between the two members to divide the annular space therebetween into four segments which are radially aligned and communicate with the four compartments of the stationary member. The sealing means, in effect, divides the device into two sides or two separated chambers through which gases of different temperatures are simultaneously circulated into thermal energy exchanging relation with the heat responsive material that happens to be in that particular chamber at the moment.

Abstract: A regenerative heat exchanger. The rotor is an annular body and includes several rotationally symmetrical chambers which are separated from one another by walls, with the axially parallel dividing walls being permeable for the gaseous heat-dissipating or heat-receiving medium, and the radial dividing walls being permeable for the gaseous medium; heat-transferring elements for the regenerative heat exchange are arranged in the chambers accompanied by formation of a whirl layer during operation. The chambers have radial flow therethrough.

Abstract: A heat wheel is made of spirally wound, interleaved, flat and corrugated strips of metal material. A plurality of circumferentially spaced pairs of radial rods extend between the wheel hub and the outer rim of the wheel. The rods of each pair are disposed in a radial plane and, in that plane, are at an angle to each other so as to form rigid triangular truss-type supports in angularly spaced axial planes.

Abstract: Disclosed is a novel rotary heat exchanger and heat exchange system for use in gas turbine engines and other environments. The heat exchanger includes a ceramic disk having a ring gear extending about the outer circumference thereof. The ring gear is joined to the ceramic disk by means of an elastomeric member. However, means are provided for keeping the elastomeric member below its degradation temperature. These means include the provision of filler material for blocking a plurality of passages at a first and second face of the disk thus forming annular bands concentric therewith on opposite faces of the disk. A plurality of passages at the periphery of the disk radially outwardly of the bands are unobstructed by the filler material such that cooling air may flow therethrough so as to keep the elastomeric material at the desired temperature.

Abstract: A low stiffness elastomer mounting arrangement for a ceramic regenerator core comprising an elastomer cushion between a ceramic, circular regenerator core and a surrounding ring gear, portions of the elastomer being bonded to the interior surface of the ring gear and other portions of the elastomer being bonded to the outer periphery of the ceramic regenerator core, the location of the bonds between the elastomer and the ring gear being tangentially offset with respect to the location of the bonds between the elastomer and the regenerator core, adjacent bonds on the ring gear and on the periphery of the regenerator core being tangentially spaced one with respect to the other, the elastomer forming a load transmitting beam construction that is not bonded to either the ring gear or the core whereby driving forces are transmitted from the ring gear to the core while the elastomer compensates for differential expansion of the ceramic core and the ring gear thus avoiding radial stresses and compression loads on th

Abstract: A ceramic regenerator core of cylindrical configuration adapted to be mounted in a gas turbine engine for rotation about its geometric axis comprising a honeycomb matrix that accommodates the flow of hot exhaust gases in an axial direction through one segment of the matrix and the flow of cool intake air through another segment of the matrix as the core is rotated, the matrix passages being formed by contiguous parallelogram shape passages, the principal diagonal for each passage generally parallel to the direction of maximum stress in the core whereby a maximum degree of thermal stress resistance is achieved thus reducing the possibility of fracture of the matrix material.

Abstract: The heat transfer medium for rotary air-to-air heat transferrers includes alternate planar and corrugated layers of a fiber-reinforced, heat-curable, organic resinous material. After corrugating and interleaving of the layers, the resultant structure is heated to cure the resin to a hardened state and the layers are bonded together at their points of contact to form a self-supporting, water-proof structure including a plurality of uniformly-spaced, tubular flow passages extending axially through the structure in parallel relationship parallel to the rotational axis of the transferrer. The surfaces of the flow passages exposed to air flow are coated with an aqueous coating solution containing a water-soluble hygroscropic material, such as lithium chloride, and a sufficient amount of a water-soluble wetting agent to provide a continuous film of the coating solution on these surfaces.

Abstract: A regenerator drive system for a ceramic circular regenerator core comprising a cylindrical matrix adapted to be mounted for rotation about its central axis, said ceramic core having axial gas flow passages adapted, when it is installed in an engine, to accommodate flow therethrough of high temperature combustion gases and relatively cool combustor intake gases, a metallic ring gear surrounding the periphery of said core and radially spaced therefrom, an elastomeric lug and groove drive means situated between said core and said ring gear for distributing tangential driving forces therebetween, said drive means comprising a first series of elastomeric drive lugs bonded to the inner periphery of said ring gear at tangentially spaced locations and a second series of elastomeric drive lugs bonded to the external surface of the periphery of said core at tangentially spaced locations and in registry with the spaces between the drive lugs on said ring gear, said drive lugs having sufficient clearance therebetween to

Abstract: In a pack of rectangular plates to be used in a regenerative heat exchanger the plates are kept in position by a plurality of mutually parallel tension rods passing through registering openings in the plates. Each tension rod has at its ends securing means co-operating with the outer plates of the stack for holding the plates pressed against each other. At least one of the tension rods is provided with a lifting eye device which can be moved into the pack and out of the pack, respectively.

Abstract: Heat is recovered from the flue gas stream discharged from a power plant combustion zone by heat exchange of the flue gas stream against the air stream which enters the combustion zone. Each gas stream flows through two rotating air preheaters, with a first preheater rotating at a constant rate and a second preheater rotating at a variable rate. The rate of rotation of the second preheater is varied to adjust the temperature of either the heated air stream or the temperature of the flue gas stream after passage through the preheaters.

Abstract: A ventilator having a rotating drumlike heat exchanging fan and a housing with separation walls and a stationary conical member arranged in the hollow of the fan. Separation walls cooperating with external and internal sides of the fan have lips arranged according to the specification.

Abstract: A heat recovery system is provided for recovering heat from flue gases and the like and heating combustion air or the like in the form of a flue gas conduit receiving hot flue gas from a furnace or the like, a metallic recuperator receiving hot flue gas from said flue gas conduit, a ceramic regenerator selectively receiving at least a part of the hot flue gas leaving the metallic recuperator, by-pass means in parallel with the ceramic regenerator receiving any of the flue gas leaving the metallic recuperator which does not go through the ceramic regenerator, stack means receiving the flue gas from the by-pass means and the ceramic regenerator means for discharge to the atmosphere, means delivering air to be heated in parallel to the ceramic regenerator and the metallic recuperator, and conduit means receiving and combining heated air from the ceramic regenerator and the metallic recuperator for delivery to a point of use.

Abstract: A heat exchanger of the regenerative type comprising a matrix of heat storage elements and a support structure therefor comprising a plurality of support bars and a support rim upon which the bars are located; at at least one end each element of the matrix comprising a heat storage block having a plurality of gas flow passages extending therethrough from end to end of the block and being adapted to co-operate with at least one of the support bars for locating and supporting the blocks with respect to the rim in parallel generally side-by-side relation with one another.

Abstract: A rotor for a gas-liquid heat exchange device that comprises a plurality of spaced heat absorbent elements mounted on a rotary shaft. The shaft is adapted to be rotated continuously between a hot liquid and a cool gas in order that heat contained in the hot liquid is first absorbed by the elements and then, as the elements rotate, the heat of the elements is transferred to the cooler gas for dissipation into the surrounding air.

Abstract: A metal strip is used for elements in a regenerative heat exchanger employed for the exchange of latent and sensible heat from a warm outgoing air stream to a cold ingoing air stream. The strip is placed alternatingly in the form of flat and corrugated sheets to form flow channels for the warm and cold air. The metal strip, for example, an aluminum foil, is coated or laminated at least on one side with a paper-like hydrophillic material. The hydrophillic layer comprises a mixture of cellulose fibers and fibers with olefin hydrocarbons as basis. Furthermore, fungicides can be added to the mixture.

Abstract: A cylindrical trunnion having a cooperating bearing that supports the rotor of a vertically disposed rotary regenerative air preheater. The trunnion has a high section modulus that is adapted to resist bending, while the support bearing therefor is adapted to be carried on independent support structure that resists axial and lateral movement. The bearing may be adjusted axially with respect to the support structure to raise the rotor from its support bearing, while a unique correlation of jacking means and independent shims permits removal of the bearing for replacement or repair.

Abstract: A rotary disc-type counterflow regenerator for a gas turbine engine includes a disc-shaped ceramic core surrounded by a metal rim which carries a coaxial annular ring gear. Bonding of the metal rim to the ceramic core is accomplished by constructing the metal rim in three integral portions: a driving portion disposed adjacent the ceramic core which carries the ring gear, a bonding portion disposed further away from the ceramic core and which is bonded thereto by elastomeric pads, and a connecting portion connecting the bonding portion to the driving portion. The elastomeric pads are bonded to radially flexible mounts formed as part of the metal rim by circumferential slots in the transition portion and lateral slots extending from one end of the circumferential slots across the bonding portion of the rim.

Abstract: A rotary regenerator construction comprising a ceramic core adapted to rotate upon its central axis and a ring gear surrounding the periphery of the core for purposes of driving the core rotatably and a yieldable compliant ring sandwiched between the ring gear and the periphery of the core to prevent stresses in the core caused by differential rates of expansion of the core and the ring during operation of the regenerator in a gas turbine engine and during processing of the regenerator and the regenerator drive ring.

Abstract: A regenerator assembly for a gas turbine engine includes a center driven, rotatable disc type ceramic core with a hub and drive shaft including a chain driven sprocket fixedly secured thereto and wherein damper means including first and second relatively movable parts are connected between the sprocket and hub and a resiliently yieldable slipper is located in the hub and compressible to accept hub loads without taking a permanent set; the damper means and slipper combining to damp oscillations in said matrix disc drive shaft during operation of the regenerator assembly and further operative to isolate frangible material of the core from shocks imposed thereon by the drive thereto.

Abstract: A driven mechanism for a rotatory heat regenerator, in which a shock absorbing member is fitted around the outer peripheral surface of a discoidal rotatory regenerator having a honeycomb structure. A metal ring having teeth is set around the outer periphery of the shock absorbing member and held in position thereby. The ring is driven by at least one driving gear connected with a prime mover and transfers torque to the rotatory regenerator. Torque fluctuations on the driving gear are moderated by the elastic deformation of the ring and the shock absorbing member. Any difference in the amount of thermal expansion between the ring and the regenerator is compensated by the shock absorbing member.

Abstract: A heat recovery system is provided for recovering heat from flue gases and the like and heating combustion air or the like in the form of a flue gas conduit receiving hot flue gas from a furnace or the like, a metallic recuperator receiving hot flue gas from said flue gas conduit, a ceramic regenerator selectively receiving at least a part of the hot flue gas leaving the metallic recuperator, by-pass means in parallel with the ceramic regenerator receiving any of the flue gas leaving the metallic recuperator which does not go through the ceramic regenerator, stack means receiving the flue gas from the by-pass means and the ceramic regenerator means for discharge to the atmosphere, means delivering air to be heated in parallel to the ceramic regenerator and the metallic recuperator, and conduit means receiving and combining heated air from the ceramic regenerator and the metallic recuperator for delivery to a point of use.

Abstract: A gas turbine with a turbine housing which includes at least one regenerative chamber for the accommodation of a regenerative heat-exchanger adapted to be set into rotation and closed against the outside by a housing cover whereby the housing separating surface is adapted to be brought into abutment with a corresponding cover separating surface of the cover, and in which at least one sliding seal adapted to be brought into sliding contact with the heat-exchanger is arranged in the chamber and is secured at one of two mutually elastic fastening members of a mounting means, whose other fastening member is anchored at a chamber wall of the turbine housing; the housing separating surface is thereby located in a plane at least approximately perpendicular to the axis of rotation, while the sliding seal with an unstressed mounting means is disposed recessed with respect to the housing separating surface in an assembly position.

Abstract: Rotary regenerative total heat energy exchanger having an asbestos-free heat exchange media formed by spirally winding flat and corrugated webs of aluminum foil and/or fully bleached, 45 lb. Kraft paper constituted by 84% fibres and 16% salts. The contained salts are 90% ammonium sulfide and 10% diammonium phosphate. Wheel thickness for efficient transfer of both sensible heat and latent heat with minimal air pressure drop across the wheel is a multiple of from 100 to 400, preferably 125 to 200, times the flute height of the corrugation web of the media. Although media may be substantially all-paper, preferred embodiments provide media having both a flat web and a corrugated web of aluminum foil, a pair of paper webs being disposed respectively on the opposite surfaces of either the flat foil web or the corrugated foil web.

Abstract: A drying oven for painted surfaces wherein the work is heated and dried by heated, high pressurized air blown against the work as it passes through the oven. A plurality of elongated pipes, each of which have a plurality of nozzle openings therealong, direct the air against the work. The heat of incineration of the solvents stripped from the work is recovered for makeup heated air to the furnace. One or more ceramic rotary heat exchangers are used to transfer the heat from the incineration exhaust gases to the fresh air. Energy required for circulating air through the furnace is minimized by supplying makeup air with a fan to a cold side of the rotary ceramic heat exchanger.

Abstract: A disc type matrix is constructed by spirally winding as a unit a flat sheet metal strip and a longitudinally corrugated sheet metal strip. The outermost layer of the matrix is formed with the flat sheet metal strip and has, on the circumferential surface thereof, a plurality of recesses for receiving coupling members which are arranged to couple the matrix and a driving ring gear member.

Abstract: A rotor for a rotary heat exchanger comprising a plurality of successive circumferential layers of corrugated foil. The corrugated foil in the adjacent layers may be joined by plane foil layers interposed between adjacent layers of corrugated foil, or may be joined directly to each other. The foil adjacent the hub of the rotor is of greater strength than the foil adjacent the periphery, preferably by providing a greater thickness in the foil in the inner layers as compared to the foil in the outer layers.

Abstract: A regenerator assembly for a gas turbine engine includes a center driven rotatable matrix with a hub and drive shaft including a sprocket fixedly secured thereto with a roller chain driven thereacross by means of a cross shaft assembly including a first elongated tubular coupling telescoped with respect to a low rate torsion spring bar and wherein an input shaft connected to one end of the torsion spring bar is associated with damper means including first and second relatively movable parts connected in parallel to the torsion spring bar by the coupling and operative to damp oscillations in said matrix disc drive shaft during operation of the regenerator assembly.

Abstract: A regenerative heat-exchanger of a gas turbine with a ceramic heat-exchanger disk, a metallic toothed rim substantially coaxially surrounding the heat-exchanger disk under formation of an annular space, compression springs arranged in the annular space which are supported under prestress, on the one hand, against the inside of the toothed rim and, on the other, against the outside of curved entrainment plate means; each entrainment plate means includes a support member and an adherent layer whose concave inner side abuts at the edge of the heat-exchanger disk, whereby the adherent layer essentially consists of metal fibers which form a plastically deformable felt-like adherent layer providing a good frictional engagement to transmit the driving torque to the heat-exchanger disk.

Abstract: There is described an improved matrix structure for use in a heat regenerator for a turbine engine. The improvement comprises providing the structure's outer region with a plurality of corrugated and flat ceramic strips, a substantial portion of said strips of a thickness greater than the thickness of the structure's operative region. A method for making the structure is also disclosed.

Abstract: A rotor construction for a rotary regenerative heat exchanger in which sector-shaped compartments are formed between imperforate diaphragms that extend radially outward from a central rotor post. The diaphragms serve to form the sector-shaped compartments that are packed with heat absorbent plates, while they simultaneously serve as imperforate barriers which preclude fluid flow laterally between compartments as the rotor is being moved alternately between a heating fluid and a fluid to be heated. In order to simplify construction of the rotor and to improve the operating efficiency thereof, the heat absorbent element plates are arranged in a radial pattern whereby they serve as radial sealing members while they simultaneously serve as heat absorbent element.