Abstract: An air turbine starter for starting an engine, comprising a housing defining an inlet, an outlet, and a flow path extending between the inlet and the outlet for communicating a flow of gas there through. A turbine member is journaled within the housing and disposed within the flow path for rotatably extracting mechanical power from the flow of gas. A gear train is drivingly coupled with the turbine member, a drive shaft is operably coupled with the gear train, and an output shaft is selectively operably coupled to rotate with the engine. A containment screen is located within the housing downstream of the at least one turbine member.

Abstract: A steam turbine having an inflow ring channel which is connected to an inflow connecting piece in terms of flow technology. The inflow connecting piece is designed in such a way that an incoming flow is first slowed down, subsequently accelerated and simultaneously deflected.

Abstract: A steam turbine has a single-shell turbine casing and specific inner casings arranged inside the turbine casing. The steam turbine has a turbine casing with an outer wall, a turbine shaft mounted rotatably about a turbine axis in the turbine casing, a first turbine part, and at least one second turbine part which is arranged downstream of the first turbine part in the axial direction of the turbine shaft, wherein the expansion direction for steam conducted through the steam turbine runs from the first turbine part to the second turbine part, wherein between the first turbine part and the second turbine part, a sealing shell is arranged on the turbine casing, in particular on the inner side of the outer wall for rotation therewith, the sealing shell being formed in a sealing manner with respect to the turbine shaft via sealing elements.

Abstract: A gas guiding device includes: a first connection part (41) connected at an end of a tubular outer casing (15) in an axial-flow rotary machine and having an annular shape around an axis (Ar); a second connection part (45) connected at an end of a tubular inner casing (16) in the axial-flow rotary machine and having an annular shape around the axis (Ar); a duct main body part (51) forming therein a flow passage (Pa) having an annular shape around the axis (Ar); and a support part (59) supporting the duct main body part (51). The duct main body part (51) is combined with the first connection part (41) and the second connection part (45) to form the annular flow passage (Pa). The first connection part (41) and the second connection part (45) have expansion joints (42), (46), respectively, which have an annular shape around the axis (Ar).

Abstract: An embodiment apparatus draw in a medium low pressure gas by a component cylinder fan, using a vortex system increasing its pressure. Using a split-system, adjustable outlet valve increasing latent heat output. With its Increase latent heat output value, uses a component heating chamber for condensate water absorbs latent heat to pressurized steam conversion for its component steam turbine. System reclaims its water for a cycle thereat. Eliminating range anxiety; Vehicles, Watercrafts, Residential, Commercial or Industrial.

Abstract: A cryogenic pump configured for pressurizing a cryogenic fluid is provided. The cryogenic pump includes a warm end portion adapted to not contact cryogenic fluid during operation of the pump and including one or more driving components. The cryogenic pump includes a cold end portion adapted to contact cryogenic fluid during operation of the pump and including a pump inlet and a pump outlet. An insulating arrangement including an insulator plate is arranged between the warm end portion and the cold end portion and defines a first air gap between the cold end portion and the insulator plate.

Abstract: A multi-stage turbine (16) is designed as an induction turbine with vapour induction in at least one intermediary stage. It is more particularly conceived as a radial-outward-flow type multi-stage turbine, with an axial main vapour inlet port (82) and an annular secondary vapour inlet port (84), which is arranged in the turbine (16) so as to annularly induce, in an intermediary stage of said turbine, a secondary vapour stream into an already partially expanded radial main vapour stream. The annular secondary vapour inlet port (84) comprises as a ring-zone (92) with through holes (94), which radially surrounds said axial main vapour inlet port (82) in a first turbine housing part (80). The axial vapour inlet port comprises a first tubular vapour inlet connection (82).

Abstract: A turbomachine is provided, wherein the rotor comprises a planetary gear on which low-pressure end stage blades are arranged, wherein the planetary gear is designed in such a way that the frequency of the rotating blades is lower than the frequency of the rotor.

Abstract: A rotary pump includes a rotor having delivery elements which deliver at least a portion of a fluid in an axial direction of the rotor. Two delivery elements or groups of delivery elements are provided on the rotor for delivering the fluid, and deliver the fluid to be delivered in mutually opposing axial directions of the rotor, so that the axial thrust components substantially compensate each other. The fluid flows flowing counter to each other jointly give way in the radial direction of the rotor and can be jointly discharged through the volute casing and utilized.

Abstract: A diffuser divider shaped as disc with a central axis, a leading edge disposed at an inner radius about the central axis, a trailing edge disposed at an outer radius about the central axis, an upper surface disposed between the leading edge and the trailing edge, a lower surface disposed between the leading edge and the trailing edge and one or more mounting features configured to mount the disc in a diffuser section configured to receive air compressed by two compressor wheel faces and to direct the compressed air to a volute. Such a divider can define throats in a diffuser section of a compressor assembly. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Abstract: A steam turbine diaphragm stage having a self-aligning flow splitter is disclosed. In one embodiment, a steam turbine flow splitter body is disclosed, the steam turbine flow splitter body having a central portion and two end portions, and including: a flow divider proximate to the central portion; and a substantially radially outward extending hook proximate to at least one of the two end portions.

Abstract: A multiple stage variable speed blower for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus, the multiple stage blower can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds, resulting in greater reliability and less acoustic noise.

Abstract: In a water pump for pumping coolant in a low temperature and a high temperature circuit with low temperature and high temperature housings each including a spiral flow guide structure, and a single rotor disposed in the joined housings and having a low temperature rotor part for pumping coolant through the low temperature circuit and a high temperature rotor part for pumping coolant through the high temperature circuit, the housings are joined with a heat isolating structure disposed between the flow guide structures of the high temperature and the low temperature housings to limit heat transfer from the high temperature coolant pumped through the high temperature housing to the low temperature coolant pumped through the low temperature housing.

Abstract: An exhaust diffuser including an outer flow guide surface and an inner flow guide surface defining an inlet, a first collection chute having an outlet in fluid communication with the inlet, the first collection chute operative to diffuse a flow of a fluid, a second collection chute having an outlet in fluid communication with the inlet, the second collection chute operative to diffuse the flow of the fluid, and the outer flow guide surface and the inner flow guide surface are operative to guide and direct the flow of the fluid to the first collection chute and the second collection chute.

Abstract: A steam turbine having a mechanical power rating of up to 500 kW for powering a generator having a shaft, a steam inlet, and an open radial flow wheel, which is torque-resistantly connected to the shaft and can be impinged with steam by the steam inlet.

Abstract: An impeller for use in a two-chamber extracting blower that separates liquid and solid contaminants from a supply of and provides a supply of clean air moving at high velocity air. The impeller includes a plurality of blades wherein each blade includes a first section perpendicular to and formed of the blade and a second section perpendicular to the first section, also formed of the blade and radiating outward. The height of each section and the construction of the main section of the blade create differing pressure zones during rotation of the impeller, segregating air contain the impurities and prompting separation of the impurities. The construction of the first and second sections promotes more efficient and quieter operation, strengthens the blade, and permits removal of the impeller.

Abstract: A steam turbine diaphragm stage having a self-aligning flow splitter is disclosed. In one embodiment, a steam turbine flow splitter body is disclosed, the steam turbine flow splitter body having a central portion and two end portions, and including: a flow divider proximate to the central portion; and a substantially radially outward extending hook proximate to at least one of the two end portions.

Abstract: A dual-inlet turbocharger system for internal combustion engine includes a single-shaft turbocharger with a dual-inlet compressor section. An air router provides a bifurcated air supply for the dual-inlet compressor section, and also provides a bifurcated source of charge air for the engine's cylinders in the case in which the present turbocharger system is applied to a V-block engine.

Abstract: Disclosed is a compact and integrated fan, pump, and heat exchanger system where air-cooling is performed via the fan, liquid cooling is performed via a pump, and the drilled pump diffusers act as a heat exchanger. The pump has drilled diffusers through which liquid passes into the volute, the drilled diffusers are streamlined and thus act as fan stator blades. Hot liquid is centrifuged and carried inside the drilled diffusers while air flows around the outside surfaces of the drilled diffusers. A heat transfer occurs where heat transfers from the hot liquid into the air stream.

Abstract: A high pressure first stage turbine and seal assembly are described. In one embodiment, a high pressure turbine section is provided. The turbine section includes at least one stage, at least one rotor and a bucket assembly. The bucket assembly includes a bucket and an attachment fixture. The stage has a high root reaction during operation. An intermediate space is between the bucket assembly and a stationary component of the turbine section. A seal is provided between the stationary member and the rotor to facilitate preventing leakage from the intermediate space toward an end of the stage. Steam balance holes are provided in the rotor or the bucket to facilitate feeding steam towards an end of the turbine stage.

Abstract: A blower system comprising a housing and a fan assembly. The housing defines a housing chamber, at least one inlet opening, a primary outlet opening, and a secondary outlet opening. The fan assembly is mounted within the housing chamber. Operation of the fan assembly draws air into the housing chamber through the at least one inlet opening and forces air out of the housing chamber through at least one of the primary outlet opening and the secondary outlet opening.

Abstract: An opposed flow high pressure-low pressure steam turbine balances thrust of the high pressure steam turbine with the thrust of the low pressure steam turbine allowing a reduction in size of thrust bearings. Higher stage reactions in both turbines may be incorporated since they are offset with the opposed flow, allowing a higher steam path efficiency. Opposed flow may be established through a cross-over pipe or utilizing a double high pressure shell.

Abstract: The present invention relates to a blower for air conditioner of automotive vehicles capable of striving to increase the blowing volume and reduce noise, and simplifying the structure of the blower by distributing the air come into the inside of an intake duct effectively to an upper blowing wheel and a lower blowing wheel.

Abstract: The backpack Multi-Blower provides for the first time an apparatus that is unique in that one person manipulates two separate air discharge tubes in either different or unified positions simultaneously at debris. This multi-blower generates air from separate chambers inside the housing having their own discharge air outlet, thereby creating more combined volume as well as the ability to diversify how the air is directed, they're by blowing with greater ease, control, efficiency and effectiveness. Man-hours reduced significantly in that one person using the multi-blower removes the need for a second man to accompany with separate single port blower. Time saved in that one person coordinates two blower tubes, verses the old way of two people trying to think together in a fluid flow of movement as to effectively moving the debris together. These few listed benefits provide a blower apparatus that has improved drastically its function and use, which will save time, money and man-hours.

Abstract: A system may cool a wheel of a steam turbine, the wheel being associated with a rotor of the steam turbine. The system may include an inlet passage and an outlet passage. The inlet passage may be positioned to communicate steam from an exterior of the rotor, through an interior of the rotor, and to the wheel. The outlet passage may be positioned to communicate steam from the wheel, through the interior of the rotor, and to the exterior of the rotor.

Abstract: The present invention is a centrifugal pump that pumps high-viscosity liquids, slurries, and solids-containing liquids. The pump has a housing, a chamber formed within the housing, a first discoidal member positioned in the chamber, a second discoidal member positioned in that chamber, connecting rods connecting a periphery of the first discoidal member to a periphery of the second discoidal member, and a drive for rotating the first discoidal member and the second discoidal member positioned in the chamber. The first discoidal member is either a recessed impeller or half-regular closed centrifugal impeller. The second discoidal member is a recessed impeller, a disc impeller, or a half-regular closed centrifugal impeller. The second discoidal member has a hole in the center.

Abstract: The invention relates to a feed pump (2) that is configured as a side-channel pump with a plurality of identically designed feed chambers (6, 7) with outlet channels (22, 23) that are disposed opposite one another, thereby eliminating the radial forces acting upon the impeller (4) of the feed pump (2). The feed pump (2) according to the invention is especially wear-free and has a very high degree of efficiency.

Abstract: A dual fan blower module of the present invention includes a housing defining a central motor compartment and first and second scroll chambers. The scroll chambers are axially aligned with and located on opposite sides of the motor compartment. A motor is mounted within the motor compartment and has first and second shaft ends extending axially therefrom. The first shaft end extends into the first scroll chamber and the second shaft end extends into the second scroll chamber. A first fan is mounted onto the first shaft end within the first scroll chamber for rotational movement within the first scroll chamber and a second fan is mounted onto the second shaft end within the second scroll chamber for rotational movement within the second scroll chamber. Each of the first and second scroll chambers includes an expansion channel extending axially inward toward the motor.

Abstract: A method for assembling a power system is provided. The method includes coupling a first turbine and second turbine together with a coupling that extends between a first rotor of a first turbine and a second rotor of the second turbine, and such that the first turbine has fluid flow along a first flow path, and the second turbine has fluid flow along a second flow path. The method further includes fixedly coupling an outer wall to the first turbine that directs fluid flow from the first flow path towards the second flow path.

Abstract: The shafts of upstream and downstream turbines are interconnected by a coupling. A diffuser is provided in an intermediate cavity between the upstream and downstream turbines to recover kinetic energy, as well as minimize or eliminate windage and spinning losses resultant from exposure of the coupling to the flowpath along the turbines. A radial entry inlet provides a supplemental fluid admission into the intermediate cavity, the admission being turned axially and circumferentially for joining with the flow exiting the upstream turbine for combined flow to the downstream turbine.

Abstract: A dual fan blower module of the present invention includes a housing defining a central motor compartment and first and second scroll chambers. The scroll chambers are axially aligned with and located on opposite sides of the motor compartment. A motor is mounted within the motor compartment and has first and second shaft ends extending axially therefrom. The first shaft end extends into the first scroll chamber and the second shaft end extends into the second scroll chamber. A first fan is mounted onto the first shaft end within the first scroll chamber for rotational movement within the first scroll chamber and a second fan is mounted onto the second shaft end within the second scroll chamber for rotational movement within the second scroll chamber. Each of the first and second scroll chambers includes an expansion channel extending axially inward toward the motor.

Abstract: An impeller pump has a pump casing (6) that defines a pump chamber. The pump chamber includes a first chamber (21) and a second chamber (22). An impeller (10) is rotatably disposed within the pump chamber. The impeller has a first groove group and a second groove group on opposite surfaces. The first groove group and the second groove group oppose to the first chamber and the second chamber, respectively, so that a fluid is draw into and discharged from the first and second chambers as the impeller rotates. The flows of the fluid discharged from the first and second chambers are converged at a converging channel (26). Pulsations of the fluid discharged from the fist and second chambers are canceled each other when the flows converge at the converging channel.

Abstract: An assist airblower unit for a heating and ventilating system of a motor vehicle. The airblower includes a single motor and two centrifugal fan wheels encased within a shell. The motor drives both centrifugal fan wheels via a shaft. The centrifugal fan wheels have angled blades that draws in air from a lateral air inlet located on the shell. The air is then forced out of the outlet openings into the automobiles interior to either heat or cool the vehicle. The air source either outputs at the front of the HVAC unit or recirculation air, i.e., cabin air.

Abstract: Herein presented is a unique device for energy recovery. The centrifugal fan blades assembly of the device provides both the counter flow of air streams and the transfer of energy between the air streams. All the components of the device, the fan blades assembly, flow stream channels and air seals are housed together in a single economical unit.

Abstract: A two-stage, permanent-magnet, integral disk-motor centrifugal pump, has a housing having first and second suction ports and first and second discharge ports, the first discharge port being connected to the second suction port. A first impeller is rotatably disposed on a shaft between the first suction port and the first discharge port and a second impeller is placed back-to-back with the first impeller and rotatably disposed on a shaft between the second suction port and the second discharge port, each of the first and second impellers having a back shroud with an array of permanent magnets fixed thereto. A first stator and a second stator are interposed between and adjacent to the first and second impellers, respectively, the rotational speed of the impellers being controlled by invertors acting upon the stators. Provisions are also included for extracting motor heat from the pump.

Abstract: Disclosed is a centrifugal compressor structure including impellers, each of the impellers including a hub coupled to a drive shaft, a plurality of blades provided at a front surface of the hub and adapted to compress an external fluid while forcing the fluid to flow from an upstream end of the hub to a downstream end of the hub, and a plurality of uniformly-shaped pressure attenuating grooves provided at an outer peripheral edge of the hub and adapted to reduce an axial load applied to the impeller. The formation of the pressure attenuating grooves are carried out without any variation in the size and length of each blade serving as important factors for adjusting the fluid compression degree of the impeller, so that thrust bearings adapted to support an axial load are effectively protected, thereby eliminating problems resulting from the thrust bearings.

Abstract: A hydro turbine has a housing with a cylindrical chamber and opposed end walls with laterally spaced smaller rectangular inlets and laterally spaced larger rectangular outlets formed in upper and lower portions of the chamber side wall in horizontally opposed relation. Smaller rectangular inlet ducts adjoin the inlets, and larger rectangular outlet ducts adjoin the outlets. A cylindrical runner surrounding a power take-off shaft is rotatably enclosed in the chamber and has a central cylindrical hub divided into laterally spaced hub portions with a first and second plurality of circumferentially spaced peripheral blades extending angularly outward from each hub portion, the first plurality of blades being circumferentially offset from the second.

Abstract: A steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530° C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.

Abstract: A turbomachine, especially a steam turbine, includes a casing, an inflow region formed at least in part by the casing for guiding working fluid, a feed for a cooling fluid, a rotating-blade carrier disposed in the casing and extending along a principal axis, and a shielding element disposed in the inflow region for shielding the rotating-blade carrier from the working fluid. The shielding element is attached to the casing by a mounting and the feed is guided through the mounting. A method is also provided for cooling one or more components of a turbomachine adjoining an inflow region for a hot working gas.

Abstract: A portable air-blowing working machine includes a prime mover and an air-blowing system. The air-blowing system incorporates first-stage and second-stage centrifugal air-blowing sections, which are rotatably driven by an output shaft of the prime mover and are interconnected by an air-blowing passage for delivering air discharged from the first-stage air-blowing section to the intake of the second-stage air-blowing sections. The inlet portions of the air-blowing passage are respectively positioned at the outer circumferential portion of a volute chamber of the first air-blowing section, and the outlet portion of the air-blowing passage is positioned near the air-intake port of the secondary air-blowing section.

Abstract: A portable air-blowing working machine includes a prime mover and an air-blowing system. The air-blowing system incorporates first-stage and second-stage centrifugal air-blowing sections, which are rotatably driven by an output shaft of a prime mover and are interconnected by an air-blowing passage for delivering air discharged from the first-stage air-blowing section to the intake of the second-stage air-blowing section. The first-stage air-blowing section and the second-stage air-blowing section share a common unitary double fan, which includes fore and rear centrifuged fan blades mounted on the fore (first stage) and rear (second stage) faces of a main disk plate integrally mounted on the output shaft of the prime mover.

Abstract: A power turbine/flywheel assembly for use in a dual shaft turbine engine having a compressor and a gasifier coupled to a first shaft. The assembly includes a second shaft that is uncoupled from the first shaft and is allowed to rotate independently of the first shaft. First and second power turbine blades are attached concentrically about and are directly coupled to the second shaft. A flywheel is directly attached concentrically about the second shaft. The flywheel is positioned between the first and second turbine blades. The first and second power turbine blades and the flywheel rotate as a unit about the second shaft.

Abstract: A piston is eccentrically arranged in a cylinder along its axial direction and can be rotated relative to the cylinder. Part of the piston is in contact with the cylinder's inner surface. First and second helical grooves are formed in the piston's outer surface and separated at its central portion, the pitches of the grooves being gradually increased from both end portions to the center portion of the piston. First and second blades are inserted in first and second grooves so as to be moved in and out of the grooves with the outer edges of the blades contacting the inner surface. The blades partition a space between the cylinder and the piston into a plurality of operation chambers with volumes corresponding to the gradual pitch increases.

Abstract: In a steam turbine having a first turbine element adapted to receive a flow of steam for operating at a first predetermined pressure, the first turbine element including an exhaust protion, a second turbine element adapted to receive the flow of steam for operating at a second predetermined pressure that is relatively lower than the first predetermined pressure, the second turbine element including an inlet portion, a method and apparatus for connecting the inlet portion to the exhaust portion by crossover piping which includes a pair of vaneless turning subsections each of which have a substantially long radius of curvature.

Abstract: A method for optimizing thermodynamic performance of a steam turbine by matching a last stage blade flow area to condenser pressure by adjusting blade angular orientation to set gaging to an optimum value. The method is also used to correct incidence by setting blade angular orientation upstream of the last blade row.

Abstract: A duplex turbine replacement unit to up-grade an obsolete or worn out quad turbine unit and thereby obtain enhanced power plant operational and output efficiencies, while at the same time providing a turbine profile and method of installation wherein the duplex turbine replacement unit hereof conveniently adapts to utilizing the existing draft tube discharge floor holes as originally provided for the replaced quad turbine unit draft tube discharges thereby eliminating the extensive and expensive civil engineering site modification and re-work that would otherwise be necessary with conventional commercially available up-grading replacement turbine units, in addition to also providing a turbine replacement unit having an internally housed and protected wicket gate adjustment mechanism which thereby substantially reduces the hazard of damage thereto by entrained debris in the turbine water.

Abstract: In an axial-flow turbine consisting essentially of an outer casing, an inner casing with a preferably integrated vane carrier (5) and a rotor (3) fitted with rotor blades (6), the first stage is designed as a radial/axial stage. It is supplied with working medium from a toroidal or spiral inlet flow housing (4). The radial vanes (10) are provided at their two ends with root plates (14) by means of which they are bladed in annular recesses (15) in the blade carrier (5). The free end faces (19) of the root plates are of curved design.

Abstract: A steam turbine having a seal, connected between the annular rows of stationary blades positioned proximate the turbine inlet, for preventing the circumvention of the flow of steam from the desired flow path and for preventing the transfer of thermal loads between the rows of stationary blades. The seal includes a band connected to one of the stationary annular row of blades and extending across the inlet, a support piece connected to the other stationary annular row of blades, and a resilient seal connected to the support piece and positioned to be in frictional engagement with the band.

Abstract: A fluid drive assembly for a rotary brush. A fluid inlet and a nozzle are included for dispensing fluid. A waterwheel is mounted for rotation about an axis. A rotary brush rotating means is rotatably driven by the waterwheel. The waterwheel has a series of vanes peripherally disposed around the waterwheel. Each vane has a wall for receiving the dispensed fluid having a pair of unrestricted ends spaced apart in a direction transverse to the direction of rotation and a fluid diverter separates the unrestricted ends diverting the fluid striking the walls simultaneously toward the unrestricted ends.

Abstract: The inlet flow guide includes a generally cylindrical shroud plate, a generally cylindrical bridge piece, elongated attachment members, biasing members and sealing members. The shroud plate is in confronting cylindrical sections, is adapted to be attached to the pair of confronting stationary blades of the annular rows of turbine blades, and includes tapped bores therethrough. The cylindrical sections of the shroud plate are in arc cylindrical sections. The bridge piece is in semi cylindrical sections and has bores therethrough of a predetermined size to accommodate expected movements during the operation of the turbine, and which are capable of alignment with the bores of the shroud plate. The attachment members have enlarged heads and shoulders and are disposed within the bores of the bridge piece and shroud plate to attach the bridge piece to the shroud plate.