Abstract: A spiral staircase includes a newel post and a plurality of steps which are mounted around the newel post. Each step has a surface tread. The tread is set up higher than the inner side. The slope of the tread at the outer side of the tread is sharper than at the inner side of the tread.

Abstract: A passive venting device is disclosed for venting a building enclosure comprising a base member having an outer flange for securing said base member to a surface, a vent structure within said base member for permitting gases and vapors to pass through said base member, the vent structure including a filter screen to prevent objects from passing through the base member and a cap member immovably mounted to the base member and spaced therefrom sufficiently to permit the free flow of air between the cap member and the base member and through the vent structure. At least said cap member is integrally composed of a translucent material. This allows external ambient light to travel through the cap member to illuminate the building enclosure.

Abstract: A low cost, reusable, easily installed and removed, locking security system and method for protecting the glass in windows and doors. The bottom panel of the preferred embodiment is installed from the outside of the building against the bottom part of a glass window or door with at least one locking-pin suction cup. The top panel or panels are then rotated upwardly away from the bottom panel and secured successively against the upper part of the glass with cord-release suction cups which are individually pressed into place for best adhesion. Removal of the system is accomplished by unlocking the padlock on each locking-pin suction cup, and raising the bottom panel to reveal release cords attached to suction cups behind the It next adjacent upper panel. A downward force then applied to each of the exposed ends of the release cords, breaks the gripping connection between the associated suction cup and the protected glass.

Abstract: Window grill clips which can be used to removably attach window grills to windows. The window grill clip has a window frame segment and a grill segment extending from the window frame segment at an upward inclined angle. An opening is defined through the grill segment. A tang connected to the grill segment has a first leg extending away from the grill segment and a second leg extending from the first leg and back toward the opening in the grill segment. The grill segment may have a tab which extends downward from and end of the grill segment opposite an end of the grill segment connected to the window frame segment. Window frame engagement spikes may be provided on the window frame segment.

Abstract: A bottom sill finish material for a window opening is made of synthetic polymer material and has a return portion which extends into the window opening, a sill projection which extends from the return portion beyond vertical wall in which the window opening is formed, and a molding profile portion which extends downward from the sill projection, substantially perpendicular to the return portion.

Abstract: Mixed-use building, for business use and for habitation use, including at least one habitation unit located on a level known as a habitation level, at least one business unit located on another level known as a business level, and at least one internal private passage interconnecting the habitation unit and the business unit. The building also includes an entrance known as a habitation entrance, another entrance known as a business entrance, a habitation passage peculiar to the habitation level that communicates with the habitation entrance, and a business passage peculiar to the business level and separate from and independent of the habitation passage. The habitation unit is served solely by the habitation passage, and the business unit is served solely by the business passage.

Abstract: A floorboard for clean rooms is disclosed. The floorboard has a support unit (110) and a tile unit (120). In the support unit (110), a plate part (111) has a plurality of engaging holes (114) on its upper surface. A support part (112) is vertically and integrally formed along the edge of the lower surface of said plate part. A plurality of reinforcing ribs (113) linearly, regularly and integrally extend on the lower surface of the plate part in a way such that the ribs are integrated with both the plate part and the support part. In the tile unit (120), a cover part (121) engages with the upper surface of the plate part. A plurality of engaging projections are (122) formed on the lower surface of the cover part at positions corresponding to the engaging holes (114) of the support unit, thus engaging with the engaging holes of the support unit. Each of the engaging projections has a ventilation hole (123) at its central portion.FIG. 4 shows the most relevant embodiment.

Abstract: There is disclosed a non-progressive modular wall system for wall heights greater than eight feet that does not require excessive demolition of adjacent wall panels and framing posts above and below the moment connection, typically at the eight foot level. The wall system assembly includes framing at the moment connection comprising connector or junction blocks fastened to the ends of the framing posts. The connector blocks abut each other and are fastened together at the moment connection and allow for selective removal of the framing posts. The disclosed wall system meets the lateral load and deflection requirements for non-progressive wall systems having wall heights greater than eight feet.

Abstract: A method for making a floor that slopes toward a drain includes the steps of enclosing a predetermined area of a flat support surface around the drain with upstanding border members, positioning an annular ring in closely spaced, concentric relation around the drain, arranging a plurality of straight form members in radial relation to the drain, connecting a radially innermost end of each form member to the annular ring so that the top edge of each form member is spaced downwardly from the plane of the drain by a distance equal to a tile thickness, and positioning an outermost end of each form member in abutting relation to the border member. Each form member has a height at its innermost end that is less than a height of its outermost end A cementitious material is poured into the predetermined area and the material is made flush with the respective top edges of the form members. An auxiliary form member is attachable to a trailing end of each form member to increase the versatility of the method.

Abstract: A fire resistant and sound insulating wall structure, particularly for the ship building industry, includes vertical stiffeners and a surface plate attached to the vertical stiffeners, preferably by gluing. A relatively thin corrugated plate is attached to the surface plate by gluing. The corrugations of the corrugated plate are substantially horizontally oriented and accordingly the corrugated plate provides horizontal stiffness. The glue attachment of the surface plate to the vertical stiffeners is preferably secured by means of screws for maintaining the fire-resisting properties of the structure in the event of the glue being destroyed by the heat of a fire.

Abstract: A composite utility pole which has a polygonal shaped outer surface and a circular shaped inner channel. Also disclosed is a truss structure which can support an assembly such as a windmill power generator. The truss structure may include a plurality of composite beams that are coupled together by a coupler. Each composite beam may have a curvature along a longitudinal axis of the beam.

Abstract: A staff structure with a flag elevating device includes an I-shaped inner fitting tube, an outer fitting tube, a hanging pole carrying a flag, a staff; and a halyard. The inner fitting tube has upper and lower projecting portions at upper and lower ends thereof. The projecting portions are provided with symmetrical hook ears and through holes on one side thereof. The inner fitting tube is enclosed by the outer fitting tube. Upper and lower ends of the outer fitting tube are provided with clamp rings for holding the hanging pole. After the inner fitting tube is fitted to the staff, the halyard is tied to the hook ears of the inner fitting tube and passed round a pulley at a top end of the staff. Pulling of the halyard causes the flag to be hoisted or lowered. The outer fitting tube is capable of turning with respect to the inner fitting tube to prevent the flag from getting entangled on the staff.

Abstract: A manually adjustable structural load transferring device and system for providing tension and compression force transfer between a plurality of spaced building structural members. A pair of load transfer members are each provided with a threaded first end and a second end, the threaded first end of one of the pair of members having threads of opposite pitch to those of the first end of the other one. A coupler member has first and second threaded ends engaged with the threaded first ends of the pair of load transfer members so that the length of the assembly can be adjusted by relative rotation between the coupler member and the load transfer members. An end connection device is attached to the second end of each of the load transfer members, the end connection device including a plurality of fastener apertures and a plurality of bolt apertures for securing the base plate to a building structural member. Several embodiments of end connection devices are disclosed.

Abstract: The present invention provides an economical and efficient insulation material formed from recycled carpet waste. Carpet waste is readily available and is currently landfilled. The resulting insulation product of the invention is a high-efficiency, low-cost building insulation material.

Abstract: Architectural units having radiused wall corners are constructed with solid surfacing material (SSM) such as Corian. Cove moldings are formed from SSM sheet strips comprising an elongated cove form flanked by elongated rabbet channels. In a table jig, an SSM wall sheet edge is adhesively secured into one of the cove molding rabbet channels. The cove mold and wall sheet unit is secured to the desired architectural wall with the other cove molding rabbet channel mated to an SSM wall sheet edge respective to an adjacent architectural wall. Clamping blocks secured to respective wall sheet and cove mold surfaces by hot melt adhesive are drawn together along the correct vector to adhesively bond each wall sheet edge into a respective rabbet channel.

Abstract: A semi-automatic shielding panel removal and installation system for supportless dasher board systems. A U-channel runs along the length of a dasher board for holding in place (by cam means) a shielding panel. The U-channel is divided into two portions; a fixed portion is mounted to the frame of the dasher board, and a movable portion is able to be lifted off of a stringer by an actuator device. During normal use of the dasher board system (i.e. during a hockey game), the cam means holds the shielding panel snugly within the U-channel portions. When it is desired to remove the panel, a motor-driven lifting device is pivotably attached to the movable portion of the U-channel and actuated. The movable portion of the U-channel is lifted vertically, thus lifting the panel out of and away from the fixed portion of the U-channel. When the top portion of the dasher board has been cleared, the U-channel is rotated by 90 degrees so the panel may be slid out and loaded onto a skid or other storage means.

Abstract: A filling machine employs a rotary table with a plurality of peripheral openings for receiving bags for filling with particulate matter as the table rotates. A gathering and severing unit is provided on the table in order to close the bag after filling. This unit includes a pair of guide plates which serve to gather a part of the bag when the guide plates are moved towards each other. In addition, a reciprocally mounted severing blade is positioned on one of the guide plates and is reciprocated transversely of the movement of the guide plates in order to sever the gathered part of the bag. The blade may be reciprocated twice to ensure complete severance of the gathered part of the bag.

Abstract: An article packaging system has a magazine case charging mechanism for picking up and charging magazine cases one by one to a subsequent stage, a magazine case aligning mechanism for aligning the charged magazine cases in one direction, a small outer shipping package producing mechanism for storing a magazine case into a small package thereby to produce a small outer shipping package, a pack production mechanism for combining packs in a predetermined combining pattern, a large outer shipping package producing mechanism for assembling a plurality of packs in a predetermined assembling pattern into an assembly, and storing the assembly into a corrugated box to produce a large outer shipping package, and a production information management computer for controlling the above mechanisms in a centralized fashion.

Abstract: A sheet having a defined pattern of reduced strength, allowing separation along said defined pattern, said pattern defining an insert for a CD-ROM jewel case, preferably being a letter size paper sheet, comprising a pair of said defined patterns each being an identical and symmetrically arranged rectangular perforation pattern having dimensions of about 150 mm by 117.5 mm, having a pair of scored folding lines to provide three regions of each defined pattern, two lateral regions each being about 6 mm wide by 117.5 mm long and bounded interiorly by one of said folding lines and a central region being about 138 mm by 117.5 mm and being bounded by both of said folding lines. Also provided is a sheet having a defined pattern of reduced strength, allowing separation along said defined pattern, said pattern defining a booklet for a CD-ROM jewel case, which preferably includes a centered rectangular perforation pattern having dimensions of about 119.

Abstract: A method, apparatus and package for packaging contaminant-sensitive articles such as semiconductor wafers on shock absorbers in a sealed rigid plastic enclosure such as a box or the like which may be enclosed within another sealed enclosure wherein the sealed enclosures are each provided with a self-sealing member together with a hollow needle connected to a source of purging gas and a vacuum source for selectively piecing one or more of the self-sealing members to communicate the gas and vacuum sources with a selected one of the enclosures interiors for purging and/or evacuating the enclosures interiors to remove ion contaminants, moisture, oxygen, plastic particles, etc. whereby corrosive activity on the articles is eliminated and the sealed condition of both enclosures is maintained after the contaminants, etc.

Abstract: A method for packing a material includes air tapping material contained in a feeding hopper to pack it into a container which is to be filled with the material, and separating the material in the feeding hopper and the container into a portion of the material packed in the container where the material has a uniform density and a portion which is the material remaining in the feeding hopper. The air tapping process includes subjecting the space that is supplied with the material to be packed to air pressure which is switched alternately from a low pressure state to a high pressure state and back to a low pressure state or from a high pressure state to a low pressure state and then back to a high pressure state, in either case causing the material to be packed to a high density.

Abstract: The present invention relates to the packaging of a hot melt adhesive in a plastic film to prevent the adhesive from blocking during shipping and storage. The hot melt adhesives of the present invention may be thermoplastic or thermosetting in nature. The films used to wrap the adhesive are flexible in nature and are made of polymer composition, which become part of the adhesive once the adhesive is melted.

Abstract: A sealing apparatus applied to a vertical type flexible package forming, filling and closing machine includes a heater block arranged near a filling tube and having a heating ridge, and a web guide attached to the outer surface of the filling tube and having a pair of guide rails, and the heating ridge cooperates with the pair of guide rails to hold the joint of a traveling package web therebetween in such a manner that the joint is elastically deformed in convex form in cross section, whereby the joint is concentratedly applied with heat and thus is heat-sealed.

Abstract: An automatic envelope inserting machine which comprises a supporting structure (31, 331) whereon envelopes (17) are made to feed, in said envelopes one or more flat inserts have to be placed (16, 16', 16"), an envelope feeder (18, 318) towards a conveyor belt (15, 40, 40a, 315, 340, 340a) which carries one envelope behind the other, at least one insert loader (11-14, 211, 212), an insertion device of at least one insert, which is selected and directed towards the feed conveyor belt, and which is inserted into a predetermined envelope (17) and elements (87) for the opening of the envelope (17), whereby, before the envelope feeder (18, 318), a deviation device (19) is provided to carry the selected inserts towards the insertion device (20, 84, 320, 384), the insertion device can move back and forth with respect to the supporting structure (31, 331), by means of translation elements (44), in a direction parallel to the feed conveyor belt and synchronised with the forward movement of the envelope (17), a pushing

Abstract: An automatic wrapper includes a roll of tape to wrap a package tightly and a tape operating device having a main arm attached thereto. A groove is defined in the main arm to receive a tape roller which is pivotally mounted in the groove. An L-shaped connecting plate is attached to the tape operating device. A motor is attached to the wrapper to supply the power for the tape operating device. The motor includes a support that has two side arm extending therefrom to abut the main arm. The main arm is pivotally mounted on the side arms by an axle extending through the side arms and the main arm. The motor includes a welding device and a cutting device each mounted on the support and a transmission device with an axle extending therefrom and received in the tape operating device. An electromagnet includes an actuating rod attached thereto, a linkage attached to the actuating rod, an active rod connecting the tape operating device, a cam and a lever each attached to the support.

Abstract: A large capacity, self-propelled walk-behind power tool, such as a lawn mower, employs gear-operated transmissions for independently driving each drive wheel. The transmission output shafts connect directly with the drive wheels, and clutch elements for use with the respective transmissions operably engage an input pulley to the transmission rather than an output pulley. The drive wheels are directly connected to the transmissions and the location of the clutching elements is within the periphery of the respective belts. The drive assembly is enclosed by the drive deck.

Abstract: A grass catcher for attachment to a power mower. In certain embodiments, the grass catcher is mounted to a self-propelled power mower so that the catcher is pivotable about two substantially perpendicular axes simultaneously.

Abstract: A rotary lawn mower adapted to separately power an auxiliary apparatus includes a platform, front and rear wheels attached to and supporting the platform, a cutting blade, an engine connected to the platform and a converter mechanism connected with the engine for separately transferring power from the engine to the cutting blade and to the auxiliary apparatus. The converter mechanism includes a frame connected to the engine and dual coupling device for coupling the engine with the cutting blade and for separately coupling the engine with the auxiliary apparatus. When the dual coupling device is in a first position, the engine shaft is coupled to drive the cutting blade for movement thereof and is not positioned for coupling with the auxiliary apparatus for movement thereof. When the dual coupling device is in a second position, the engine shaft is coupled with the auxiliary apparatus for movement thereof and is not positioned for coupling with the cutting blade for movement thereof.

Abstract: Machine for the selective harvest of berries, for example, machine for gathering grapes, of the type having a shaking system constituted by two berry picking assemblies each having a plurality of superposed gathering arms, characterized in that said shaking system is coupled to at least one driving electro-hydraulic device including at least one hydraulic jack controlled by a servovalve or by a proportional solenoid valve controlled by a microprocessor electronic control unit.

Abstract: A revolving body (1) with a circumferential surface (2) and two end faces is provided for inserting twist into a midportion of a longitudinally moving elongate strand of filamentary material. In order to produce a revolving body into which the elongate strand can be introduced very easily and which is also suitable for automated introduction of the strand, this body is provided with a groove which is open towards the circumferential surface and the end face so as to take up the elongate strand in the region of a longitudinal axis and is configured to deflect the strand away from the longitudinal axis.

Abstract: A method and an apparatus for use with a gas turbine engine receive a signal indicative of an engine operating condition, generate signals representative of thermal conditions of a rotor, blades, and a case, and in response to each of the signals above, determine a signal indicative of a difference between a instantaneous clearance for the thermal conditions and a steady state clearance for the engine operating condition. The determination includes effects related to a temporary difference that results from a difference between the steady state clearance for the engine operating condition and a steady state clearance for a preceding engine operating condition, but does not require computation of the actual temperatures or the steady state temperatures of the rotor, the blades, and the case. A signal indicative of the difference between a instantaneous clearance for the thermal conditions and a steady state clearance for the engine operating condition may be provided to various augmentation schedules.

Abstract: A synthesis gas production system (302) incudes a gas turbine (310) having a compressor (312) with an autothermal reformer (308) between the compressor (312) and the turbine (314). The system (302) may include a separator (326) for removing a portion of the mass exiting the compressor (312) prior to its delivery to the autothermal reformer (308). Gaseous light hydrocarbons are delivered to the autothermal reformer (308) through conduit (330) and may be selectively controlled with a valve (331). Synthesis gas production system (302) may be used with a methanol process, ammonia process, a Fischer-Tropsch process (304), or other process involving synthesis gas.

Abstract: A gas turbine generally comprises a compressor, a combustor and a turbine body operatively connected to the compressor through a rotation shaft, and the turbine body is composed of a plurality of rotors formed with turbine discs and movable blades which are arranged in plural stages along an axial direction of the turbine body, in which a rear shaft is connected to a downstream side of a final stage disc of the turbine discs so as to extend rearward from the final stage turbine disc and supported by means of a bearing. The rear shaft is formed with a cooling medium supply passage for supplying a cooling medium to the turbine disc and a cooling medium recovery passage for recovering the cooling medium from the turbine disc, and a further cooling medium passage is formed between the rear shaft and either one of the cooling medium supply passage and the cooling medium recovery passage.

Abstract: The present invention relates to a hybrid engine capable of employing a ramjet mode and a super ramjet mode and comprising a main engine system (3, 4, 5, 8) which burns fuel and which comprises at least one air inlet (3) for an air stream (F), a combustion chamber (8) and a jetpipe (4). According to the invention, said engine (1) additionally comprises first means (10) for storing, in ramjet mode, air diverted from the air stream (F), and second means (11) for burning, in super ramjet mode, some of a fuel of the engine (1) with the air stored by the first means (10), before injecting it into the main engine system (3, 4, 5, 8).

Abstract: An exhaust recirculation of gases in internal combustion engines, notably for automobiles, which has a catalytic converter, recycling apparatus for recycling the exhaust gases and heat recovers apparatus for recovering heat from the exhaust gases. A single heat exchanger is arranged for cooling the recycled exhaust gases and recovering the heat energy from the exhaust gases for heating the passenger compartment of the vehicle and for protecting the catalytic converter from excessively high exhaust temperatures. Valves for diverting exhaust gases, a back-pressure valve and an EGR valve are controlled for this purpose by control electronics. The invention is particularly applicable to direct-injection petrol or diesel engines or to lean-mixture petrol engines.

Abstract: By taking into account the deviation between a desired value, determined from a model for a secondary-air mass flow and an actual value of the secondary-air mass flow, detected by an airflow sensor, a correction value is obtained. From the correction value, together with a main-air mass flow that is present in an intake tract of the internal combustion engine and a pilot control value for an air/fuel ratio, a correction factor for correcting an injection duration is derived.

Abstract: It is an object of the present invention to provide an exhaust gas purifying system for an internal combustion engine in which the rise of the temperature of an HC adsorbent is adequately retarded to improve the purification of HC at the start of the engine.In an exhaust system of the internal combustion engine, there are provided a three-way catalyst provided in the downstream side of an exhaust manifold, an adsorbent-catalyst provided under the floor of an automotive vehicle and containing at least zeolite in its composition, and a catalyst provided in the downstream side of the adsorbent-catalyst. In particular, the heat capacity of an exhaust gas passage which connects between the three-way catalyst and the adsorbent-catalyst is increased greater than the heat capacity of the exhaust manifold. More particularly, the thickness of a wall of the exhaust gas passage is greater than that of the exhaust manifold. A substrate, a partition, or a muffler is provided across the exhaust gas passage.

Abstract: A flange for attaching an exhaust manifold to an engine block. The flange having two layers of sheet metal plates accurately connected to each other and having openings which are aligned with the cylinder outlets of the engine block, and attachment openings which are placed on stay bolts on the engine block. The flange includes at least two flange portions, whereby the plates of adjacent flange portions overlap in the area at least of one attachment opening. The contact surfaces can have a slide coating in the overlap area.

Abstract: An exhaust manifold M is comprised of a plurality of inner exhaust pipe shells secured to an upper flange, and a plurality of outer exhaust pipe shells secured to the upper flange to individually cover the inner exhaust pipe shells, wherein a downstream end of each of the corresponding inner exhaust pipe shells slidably contacts an annular bead bulging from an outer peripheral surface of the downstream end of the outer exhaust pipe shells. An inner collecting pipe shell communicates with the plurality of inner exhaust pipe shells and is secured at its upstream end to the plurality of outer exhaust pipe shells, and an outer collecting pipe shell which is secured at its upstream end to the plurality of outer exhaust pipe shells covers the inner collecting pipe shell. A downstream end of the inner collecting pipe shell slidably contacts an annular mesh member interposed therebetween.

Abstract: An apparatus for generating energy which employs the use of a bore of a well wherein the well has pressurized gas and the apparatus includes a gas trapping member rotatably disposed adjacent the well bore and having a drive shaft fixedly connected thereto, the gas trapping member has a plurality of gas trapping pockets radially peripherally disposed thereon and is disposed in a manner such that as the gas passes from a high pressure zone of the well bore toward a lower pressure zone of the well bore gas is trapped in at least one of the trapping pockets aiding rotation of the gas trapping member. An electric generator is operably connected to the drive shaft such that as the drive shaft rotates, the electric generator generates power. Further, the invention includes a wind turbine operably disposed adjacent the well which is operably connected to an air compressor which is operably connected to an air line which extends into the well having a terminal end in the high pressure zone for emitting air therein.

Abstract: An actuator for a turbocharger includes a hollow body member having a open top. A flexible elastic diaphragm extends across and is sealingly secured to the open top of the hollow body member which sealingly secures it thereagainst. A cap covers the open top and has a recessed surface formed therein directed toward the open top. The cap is sealingly secured against the body member so as to define a pressurizable cavity in the hollow between the cap and the diaphragm, and the cap having a rigid stem protruding therefrom with a fluid passage extending through the stem and into fluid communication with the cavity. An actuator rod is axially movable by the diaphragm in response to a predetermined pressure in the cavity.

Abstract: In a method of controlling the charge air mass flow of an internal combustion engine having an exhaust gas turbocharger with adjustable turbine geometry and a control unit for controlling the operation of the turbocharger, the intake air and exhaust gas pressures are determined and a corresponding differential pressure value is generated which is compared with a desired differential pressure value for generating a control signal on the basis of which the turbine geometry is adjusted and, during instationary engine operation when an increased engine load is required, the turbine geometry adjustment is modified so as to reduce the turbine inlet flow cross-section to thereby increase the engine charge air pressure.

Abstract: An engine control system for protecting a turbocharger of an internal combustion engine from an overspeed condition occurring as a result of a failure of the turbocharger wastegate device. In one embodiment of the invention, sensors provide signals for engine speed, ambient pressure and boost pressure between the turbocharger and the engine intake. Correction factors are added to the boost pressure and ambient pressure signals, and a turbocharger pressure ratio is calculated from these signals. A reduced fueling table maps turbocharger pressure ratio and engine speed to reduced fueling signal values. An engine control computer utilizes a nominal fueling table that maps engine speed and boost pressure to nominal fueling signal values. The control computer also includes a decision module that selects the lesser of the nominal fueling signal values and the reduced fueling signal values and provides the selected value to the engine fueling system.

Abstract: A method and system are described for heating natural gas in a station, such as a City Gate station. Natural gas from the field is generally transported via supply line at high pressure to the various distribution networks necessary for delivering the gas. However, before the natural gas can enter these distribution networks its pressure must be reduced to a usable level. City Gate stations employing pressure reducing (JT) valves are usually built for this purpose. The present invention provides a system and method for heating the natural gas, without combustion of the natural gas, by relying on the pre-existing pressure of the gas in the supply line along with particular equipment to provide heat to the gas passing through the station.

Abstract: A method of operating a power generation system is provided. The system includes a turbine, a regenerative heat exchanger, a boiler, and a superheater. The turbine receives a stream of first working fluid and expands the first working fluid to produce power. The regenerative heat exchanger receives a stream of the expanded first working fluid from the turbine and a stream of second working fluid, for example from the RHE or DCSS of a Kalina type system. The exchanger transfers heat from the expanded first working fluid to the second working fluid to heat the second working fluid and condense the expanded first working fluid. The boiler receives and vaporizes a stream of the condensed first working fluid. The superheater receives and superheats the vaporized stream of first working fluid and the heated stream of second working fluid to form the stream of first working fluid.

Abstract: A method of operating a power generation system is provided. The system includes a turbine, a regenerative heat exchanger, and a vapor generator. The turbine receives a stream of working fluid and expands the working fluid to produce power. The regenerative heat exchanger has a plurality of condensing heat exchangers which transfer heat from the expanded working fluid to condense the expanded working fluid. The vapor generator vaporizes the condensed portions of working fluid to form the stream of working fluid. In operating the system, a respective portion of the expanded working fluid is directed to each of the condensing heat exchangers, and the amount of condensed working fluid at at least one of the condensing heat exchangers is regulated.

Abstract: The steam generator (1) includes at least an evaporator (8), a low-pressure drum (10), a separator (13) and a blowdown tank (22). A recirculation line (16) extends from the separator (13) to the low-pressure drum (10). A line (12) with a feed unit (11) extends from the low-pressure drum (10) to the evaporator (8). The feed unit (11) is designed for a capacity which is larger than the capacity of normal full-load operation of the steam generator (1). The separator (13) communicates via two differing line sections (18, 20) with the blowdown tank (22). One line section (18) is designed for a large mass flow at a small pressure difference between the separator (13) and the blowdown tank (22). The other line section (20) is designed for a small mass flow at a high pressure difference between separator (13) and blowdown tank (22).

Abstract: A separator (10) for a two-head combustion chamber which comprises a plurty of segments (11) that are arrayed circumferentially and spaced apart a distance (x) from one another and that are affixed to appropriately shaped sheetmetal (12, 13) of the combustion chamber. Each segment (11) is shaped as an elongated, hollow body with an upper wall (17) and a lower wall (18). The segments are cooled by air from an upstream portion of an end of the combustion chamber entering the segments (11) and exhausting by a plurality of orifices (34) in the segment walls (17, 18). The upper and lower segment walls (17) and (18) are respectively heat-protected by two sets of tiles (40, 41), each of the tiles straddling two adjacent segments, being spaced a distance from the walls (17, 18) to subtend an enclosed space (46, 47) therebetween, and having at least one tile orifice (48, 49, 50) which allows the cooling air from the segments (11) to exhaust into the heads.

Abstract: The invention provides in a gas turbine engine combustion chamber, an array of elongate louver strips between fuel nozzles of a combustion chamber dome wall, to cool the dome wall and contain combustion gases in the area between nozzles. The elongate louver strips are each disposed symmetrically along the median line on the inner surface dome wall and extend between each nozzle cup of the annular array. Each strip includes an elongate flange extending into the combustion chamber from the inner dome wall. The flange has an inner surface, and lateral side walls, with the inner surface generally parallel to the inner surface of the dome wall. Compressed air outlets are disposed along each flange lateral side wall, for directing a compressed air film along the inner surface of the dome wall in a direction away from the median line. A compressed air inlet extends from the outer surface of the dome wall to the outlets.

Abstract: Methods of controlling crystallization of aqueous lithium halide refrigerant fluids utilizing an organic counter cation-containing salt material effective to depress the crystallization temperature of the refrigerant fluid and corresponding refrigerant fluids.