Abstract: A dustproof axial-flow fan device includes an axial-flow fan and a mount body. The axial-flow fan has a frame body and a fan propeller rotatably mounted in the frame body. The mount body has an inlet and an outlet. At least one shutter slat is disposed at the inlet. A filter mesh is disposed at the outlet. An opening is formed at a bottom of the mount body. When the fan propeller forward rotates, air flows from the inlet into the mount body and filters through the filter mesh to flow out of the outlet. When the fan propeller reversely rotates, the shutter slat is closed to block the inlet. In this case, the air flows from the outlet into the mount body to blow off the dust from the filter mesh. The shutter slat will stop and make the dust drop out from the opening to remove the dust.

Abstract: In a hydroelectric turbine having a rotor disposed within a housing, the rotor having an annular outer rim received by a channel in the housing, the improvement comprising providing at least one debris release chute in said housing such that debris captured between the rotor and the housing is released through the debris release chute.

Abstract: This disclosure describes embodiments of a filter device for use in power generating systems with turbo-machines. In one embodiment, the filter device comprises a two element filter set, having an inner element and an outer element. The inner element resides inside of the outer element to reduce the overall length of the filter device. In one example, the filter device mounts to a wall, or tubesheet, found in an air filter unit of the power generating system.

Abstract: A filter frame is removably attachable to a box fan. The filter frame is adapted for receiving a standard HVAC-style filter for removing contaminants from air flow induced by the fan. In this manner, a cost-effective means for filtering a flow of air is provided for residential and commercial settings. The filter frame is adaptable to a variety of standard box fan types of different styles and dimensions. The frame is configured to accommodate standard filters, such as those readily available from retail hardware stores and home centers.

Abstract: The water-turbine and the intake- and exit-tubes are located in a house, which is supported on stilts from the bed of the headpond. In operation, water is siphoned upwards out of the headpond through the open underside of the house. A trashrack is located in the intake-tube, above the water level of the headpond, whereby the trashrack is in air when the turbine is not running. The trashrack is horizontal.

Abstract: There is provided a fan guard for mounting on an electrically-operated axial-flow fan. The fan guard comprises a plurality of fasteners for extending into a plurality of respective holes on the fan and further comprises a projection projecting outwardly from the fan guard from a central support which, in use, is coincident with a central region of the air flow from the axial-flow fan. The fasteners secure the fan guard on the fan by a friction fit between the fasteners and the holes, thereby rendering installation of the fan guard on a fan, and removal of the fan guard from the fan quick and straightforward.

Abstract: A gas turbine engine includes a pre-swirl structure. Inner and outer wall structures of the pre-swirl structure define a flow passage in which swirl members are located. The swirl members include a leading edge and a circumferentially offset trailing edge. Cooling fluid exits the flow passage with a velocity component in a direction tangential to the circumferential direction, wherein a swirl ratio defined as the velocity component in the direction tangential to the circumferential direction of the cooling fluid to a velocity component of a rotating shaft in the direction tangential to the circumferential direction is greater than one as the cooling fluid exits the flow passage outlet, and the swirl ratio is about one as the cooling fluid enters at least one bore formed in a blade disc structure. An annular cavity extends between the flow passage and the at least one bore formed in the blade disc structure.

Abstract: A gas turbine engine includes a supply of cooling fluid, a rotatable shaft, blade disc structure coupled to the shaft and having at least one bore for receiving cooling fluid, and a particle separator. The particle separator includes particle deflecting structure upstream from the blade disc structure, and a particle collection chamber. The particle deflecting structure deflects solid particles from the cooling fluid prior to the cooling fluid entering the at least one bore in the blade disc structure. The particle collection chamber is upstream from the particle deflecting structure and receives the solid particles deflected from the cooling fluid by the particle deflecting structure. The solid particles deflected by the particle deflecting structure flow upstream from the particle deflecting structure to the particle collection chamber.

Abstract: Various systems for processing air are disclosed. In one embodiment, an air processing system includes: an inlet manifold adapted to receive compressor discharge air from multiple turbine compressors; an air processing system fluidly connected with the inlet manifold, the air processing system adapted to process the compressor discharge air to provide a processed working fluid; an outlet manifold adapted to provide the processed working fluid to multiple turbine inlet filtration system; and a control system operably connected to the inlet manifold, the air processing system and the outlet manifold, the control system configured to control flow of the compressor discharge air from the multiple turbine compressors to the inlet manifold.

Abstract: The invention relates to a gas turbine, for energy generation, with a compressor, arranged coaxially to a rotor, mounted such as to rotate, for the compression of an inlet gaseous fluid, at least partly serving for combustion of a fuel in a subsequent annular combustion chamber, with generation of a hot working medium, with an annular diffuser arranged coaxially to the rotor, between the compressor and the annular combustion chamber, for distribution and deflection of the fluid, whereby a part of the fluid is diverted as cooling fluid for the turbine stages after the combustion chamber, by means of a dividing element, arranged in the fluid flow.

Abstract: A wiper assembly may be used to prevent wellbore debris from entering an operating region of a pump. The wiper assembly may include a housing, a wiper member, a backing member, and a biasing member. The biasing member may bias the backing member into engagement with the wiper member, and thereby bias the wiper member into engagement with a tapered surface of the housing. The wiper member may include a corresponding tapered surface, which thereby forces the wiper member radially inward into engagement with an operating member of the pump.

Abstract: A method for assembling a turbine engine including a compressor is disclosed. The method includes coupling an inlet including an inertial particle separator (IPS) and a first surface that is defined using a segment angle, to a gas turbine engine, and coupling the first surface substantially flush against a fuselage of an aircraft to reduce drag.

Abstract: The turbojet engine inlet and exhaust covers are permanently installed at the inlet and exhaust outlet or nozzle of an aircraft turbojet engine installation. The covers preclude the entrance of small animals, windblown debris, snow, and/or other contaminants into the engine inlet or exhaust while the airplane is inoperative. The covers have an iris-type shutter configuration, each cover having a plurality of leaves pivotally attached to a circumferential stationary housing that is attached to the engine or nacelle. A rotary ring is rotated through a small arc to pivot the shutter leaves inward and outward to close and open the engine opening. The rotary ring may be driven by an electric motor, or by hydraulic or pneumatic power. The system may be automated to close according to engine temperature after flight, and/or to open upon initiation of the engine start sequence for the aircraft.

Abstract: The present invention provides a splinter shield for a vacuum pump, capable of reducing costs of the splinter shield by obtaining a single sheet of splinter shield having a required strength, in which fastening strength to a fixing groove is enhanced to prevent the splinter shield from bending toward the inside of a pump and coming into contact with equipment inside the pump when air rushes into the pump through an inlet port and to prevent the splinter shield from falling. Furthermore, attachment and removal of the splinter shield with respect to the inlet port are facilitated.

Abstract: The nacelle (1) comprises an air intake (5) upstream of the turbojet engine (2), a middle section (6) an internal casing (6a) of which is intended to surround a fan (3) of the turbojet engine (2), and a downstream section (7) comprising an external structure (7a)which is rigidly connected to a downstream part of the casing (6a) of the fan (3) so as to support the turbojet engine (2) and has means of attachment to a strut (12) intended to be connected to a fixed structure (13) of an aeroplane.

Abstract: Apparatus and method for removing particles from an air source. The air source is passed through multiple rows (R65) of cyclone separators (65), removing particles from the air to create cleaned air and passing the particles through openings (112) in the separators 65 so that the particles fall to a surface (42) below the openings. The cleaned air is directed into a first chamber region (73) above the cyclone separators (65) and moved along a second chamber region (76) positioned between two of the rows (R65) toward a duct (85) for passage out to a compressor (22).

Abstract: A jet engine air intake guard system wherein direct axial air flow into an engine during takeoff and landing may be temporarily closed off while air intake is provided laterally through screened air intake ports located on a cylindrical housing that extends forward of the conventional air intake cowling openings.

Abstract: A compressor shroud for containing fragments of a compressor impeller and a turbine wheel within a gas turbine engine. The compressor shroud includes a compressor containment section, a turbine containment section, and a containment continuity section. The containment continuity section connects the compressor containment section and the turbine containment section to form a one-piece part.

Abstract: A one-piece air exit port baffle for containment for an air start turbine includes a circular arc section with a circumferentially corrugated circular arc section and a flange section. The circumferentially corrugated circular arc section has a plurality of openings. The flange section is axially adjacent to the circumferentially corrugated circular arc section and configured for attachment adjacent to an air exit port of an air turbine starter.

Abstract: A fan includes a base and a nozzle mounted on the base. The base includes an impeller and a motor for driving the impeller to generate an air flow. The nozzle includes an air inlet, an air outlet, and an annular casing which defines a bore through which air from outside the fan is drawn by air emitted from the air outlet. An ionizer is located within the bore of the nozzle for treating the air drawn through the bore.

Abstract: A fan includes a base and a nozzle mounted on the base. The base includes an impeller and a motor for driving the impeller to generate an air flow. The nozzle includes an air inlet, an air outlet, and an annular casing which defines a bore through which air from outside the fan is drawn by air emitted from the air outlet. An electrostatic precipitator is located within the bore of the nozzle for treating the air drawn through the bore.

Abstract: Solutions for efficiently filtering air for a machine are disclosed. In one embodiment, a filter element for a filter assembly of a rotary machine is provided. The filter element includes: a first set of pleats, each pleat including a first tip radius and a first spacing; and a second set of pleats, each pleat including a second tip radius and a second spacing, wherein the first and second set of pleats are positioned upon a continuous filter media.

Abstract: A heat dissipating fan includes a housing having a base and a sidewall coupled to the base. The sidewall defines a compartment. The housing includes an air inlet, an air outlet and a dust channel. The air outlet includes opposite first and second end edges located at a same straight side of the housing. The housing defines a first plane. The impeller includes a hub and several blades. The impeller defines a second plane. The compartment of the housing includes an air outlet section and a pressure accumulating section. The air outlet section is located between the first and second planes. The air outlet is located in the air outlet section. The dust channel extends in an angle with respect to the second plane. An impeller is coupled to the stator that is coupled to the base. A control element includes a driving circuit and a rotating direction control circuit.

Abstract: An inlet filter house is provided for use with a turbine engine including an inlet duct. The inlet filter house is coupled to the inlet duct and includes an inlet hood including a filter assembly selectively positionable between an operating position and a bypass position. An actuating assembly is coupled to the filter assembly to selectively position the filter assembly. A sensor is configured to detect at least one operating parameter. A controller is coupled to the sensor for actuating the actuating assembly based on the at least one operating parameter.

Abstract: A turbomachine casing assembly includes a first casing element locatable radially outward of one or more rotating aerofoil elements of a turbomachine and a second casing element located radially distal to the first casing element, with a void being defined between the first and second casing elements. Each of the first and second casing elements includes, at a first end thereof, respective co-operating first and second interface portions. In the event that an aerofoil element becomes detached from the turbomachine and impacts the first casing element, the second interface portion; slides along the first interface portion and the first end of the first casing element enters the void.

Abstract: A vacuum pump (1) includes: a rotor (30) provided with a rotor-side discharge function unit (32); a motor (36) that drives the rotor (30) to rotate with respect to a stator-side discharge function unit (22); and a cylindrical pump casing (2) made of a magnetic material, in which the rotor (30) and the stator-side discharge function unit (22) are disposed.

Abstract: A flow divider (1) for a fan engine which forms an annular leading edge (4) simultaneously on the outer circumference of an annular core air duct and the inner circumference of an annular secondary air duct, protrudes into the fan airflow and has an aerodynamic profile. In order to avoid blockage of the core air and/or secondary air ducts in the event of destruction or detachment of the flow divider (1), the flow divider features separable parts (6) which, whatever their orientation, are capable of passing the vane passages of the core air duct and the secondary air duct.

Abstract: A seal assembly for a compressor includes a static member fixedly disposed within a compressor casing and having an end surface and a rotatable separator coupled with a compressor shaft and spaced from the static member. The separator has an axial end with a radial end surface located adjacent to the static member end surface such that a clearance space is defined therebetween. The separator has a plurality of openings extending inwardly from the end surface and spaced about the shaft axis such that land surface sections are defined on the end surface. The land surface sections or/and the openings are configured to prevent fluid flow radially inwardly through the clearance space. The static member has two annular walls receiving an end portion of the separator, with annular ridges providing labyrinth seals disposed against inner and outer surfaces of the separator, and an annular deflector with an angled deflector surface.

Abstract: A turbine outlet frozen gas capture apparatus is provided and includes an enclosure divided into first and second chambers, the first chamber being receptive of turbine outlet exhaust including frozen gas, a wheel disposed and configured to be rotatable such that frozen gas received in the first chamber is captured and transported into the second chamber and a heater disposed within the second chamber and configured to vaporize the frozen gas transported therein to thereby produce vaporized gas.

Abstract: A pedestal for a fan assembly includes a telescopic duct for conveying an air flow to an outlet of the fan assembly. The duct includes an outer tubular member having a first stop member, an inner tubular member located at least partially within and slidable relative to the outer tubular member, the inner tubular member having a second stop member for engaging the first stop member to inhibit withdrawal of the inner tubular member from the outer tubular member, and a mainspring rotatably mounted on the second stop member, the mainspring having a free end retained by the first stop member.

Abstract: According to one aspect of the exemplary embodiment, a turbomachine includes a compressor portion, a combustor fluidly connected to the compressor portion, and a turbine portion fluidly connected to the combustor portion and mechanically coupled to the compressor portion. The combustor portion is configured and disposed to burn ash-bearing fuel oils. The turbine portion includes a first stage having a first plurality of airfoils, and a second stage having a second plurality of airfoils. The first plurality of airfoils have a trailing edge discharge member. The second plurality of airfoils is clocked circumferentially relative to the first plurality of airfoils. The first plurality of airfoils are configured and disposed to direct an ash depleted flow upon corresponding adjacent ones of the second plurality of airfoils.

Abstract: A portable blower has a casing (2) having an opening portion (24) open in a suction face (2a) of the casing (2) facing the installation surface with an inclination and a discharge port (7) open in a top face (2d) of the casing (2); an air passage (8) inside the casing (2), connecting between the opening portion (24) and the discharge port (7); and a blower fan (17) inside the air passage (8). As the blower fan (17) is operated, outside air is introduced into the air passage (8) through an intake port (6) formed by part or the whole of the opening portion (24) to pass through the blower fan (17) and then be sent out through the discharge port (7). The opening portion (24) and the discharge port (7) communicate with each other along the inner side of the suction face (2a) outside the blower fan (17).

Abstract: An exhaust pump that prevents particles from entering a processing chamber of a substrate processing apparatus. The exhaust pump connected to the processing chamber has rotary blades and an air intake portion disposed on the processing chamber side of the rotary blades. A shielding unit is disposed inside the air intake portion and shields the rotary blades when the air intake portion is viewed from the processing chamber side.

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: Device for discharging a fluid (5) fed into a reaction chamber (1) containing solid particles fluidized by said fluid, through a rotary chamber (100) provided with a finned wheel (13) having fins (14), which may deliver into said reaction chamber the solid particles that are concentrated along the rotary circular wall (8) of said rotary chamber under the effect of the centrifugal force, and processes for the catalytic polymerization, combustion, gasification, drying, impregnation, coating or other treatments of solid particles in suspension in a fluid or for the cracking, dehydrogenation or other catalytic conversions of a fluid using this device.

Abstract: A filter and pump unit is proposed for the filtering out of particles from a fluid, there being a filter housing (2) which bounds a filter space (3) and has an inlet (21) and also an outlet (22) for the fluid to be filtered as well as a filter element (4) provided in the filter space (3), the filter element demarcating an inlet region (31) from an outlet region (32) of the filter space (3), with the inlet region (31) communicating with the inlet (21) and the outlet region (32) communicating with the outlet (22), there also being an impeller (5) which, as part of a rotary pump, can pump the fluid from the inlet region (31) through the filter element (4) into the outlet region (32), characterized in that a flow connection (6) is provided between the outlet region (32) and the impeller (5) so that at least a part of the fluid can flow back from the outlet region (32) to the impeller (5). Furthermore, a method for the filtering out of the particles from a fluid is proposed.

Abstract: A fan assembly is provided. The fan assembly includes a fan, and a shroud having a motor mounting portion on which a fan motor of the fan is mounted. One or more coupling units are provided at a lower side of the shroud, and on a planar surface of an apparatus, and one or more vibration preventing members are interposed between the coupling units. Because the fan and the motor mounted thereto cause vibration and noise to the fan assembly in the apparatus, the vibration preventing members are interposed between the coupling units of the shroud and the apparatus to reduce the amount of vibration and noise transmitted from the fan and the motor to the apparatus.

Abstract: A power tool includes a housing having an intake aperture, a fan disposed within the housing and operable to draw air through the intake aperture, and a fan intake shield positioned adjacent the intake aperture. The fan intake shield includes a first rib, a second rib adjacent the first rib and spaced from the first rib to define an air flow path into the intake aperture between the first rib and the second rib, and a third rib adjacent the first rib and spaced from the first rib to define an air flow path into the intake aperture between the first rib and the third rib. Each of the first, the second, and the third ribs has a respective height, and the height of the first rib is greater than the height of the second rib and the height of the third rib.

Abstract: Implementations of an enhanced axial air mover system address various issues such as drying performance, transportability, storage, use, and assembly. Some implementations include ergonomic positioning of a carrying handle relative to positioning of a fan-assembly to make the system easier to carry. Enclosures with variable diameter profiles increase air flow performance. A floor edge allows for flush positioning of the air mover's outlet to improve flow of air. Various supports and engagement members allow for horizontal and/or vertical engagement of a plurality of the air movers for storage or increased air moving capacity for a given application. An alignment guide assists with positioning of the air mover with respect to a room wall to enhance air flow within the room. A cord retaining system provides an enhanced approach for securing the air mover's electrical cord. Grill guards have slotted ends to assist with assembly of the air mover.

Abstract: Implementations of an enhanced axial air mover system address various issues such as drying performance, transportability, storage, use, and assembly. Some implementations include ergonomic positioning of a carrying handle relative to positioning of a fan-assembly to make the system easier to carry. Enclosures with variable diameter profiles increase air flow performance. A floor edge allows for flush positioning of the air mover's outlet to improve flow of air. Various supports and engagement members allow for horizontal and/or vertical engagement of a plurality of the air movers for storage or increased air moving capacity for a given application. An alignment guide assists with positioning of the air mover with respect to a room wall to enhance air flow within the room. A cord retaining system provides an enhanced approach for securing the air mover's electrical cord. Grill guards have slotted ends to assist with assembly of the air mover.

Abstract: A vacuum pump according to the invention includes a cylindrical pump casing for accommodating a rotor, a ring fitting part provided at an inlet area of the pump casing, a C-shaped ring of character C configuration devoid of portion of a ring member, fitted to the ring fitting part, and a protective net for stopping foreign matter, fitted to the inlet area by means of the C-shaped ring. As both ends of the C-shaped ring are formed so that the ends of the C-shaped ring are arranged overlapping each other in a circumferential direction in a state where the C-shaped ring is fitted to the pump casing, the deformation of the protective net for prevention of foreign matters is suppressed when air rushes into a pump casing, and therefore the dropping off of the protective net can be prevented.

Abstract: A pump suction assembly comprising a suction sheet having a receiving hole, a flat central section, a first outer section and a second outer section extending away from the central section at an angle; a pipe having a bend, an inlet portion having at least one vortex flat and directed toward and at least partially disposed in the receiving hole and flush with a bottom of the suction sheet; a tank having a base; at least one standoff arranged to support the first outer section at a perimeter of the first outer section; at least one standoff arranged to support the second outer section at a perimeter of the second outer section; and at least one standoff arranged to support the central section, wherein the inlet portion is directed toward and proximate to the base.

Abstract: A pump includes a cutting impeller (38) and a pre-chopper (50) driven by a shaft portion (46) that projects axially from the cutting impeller (38), with the pre-chopper (50) being surrounded by an intake port (22) of the pump, the intake port having, at least on a part of its length, in the vicinity of the pre-chopper, a non-circular internal cross-section.

Abstract: A cover member defining a rotor chamber adjacent to a rotor wheel that supports a rotating blade in a turbine includes a first aperture for introducing a cooling gas stream into the rotor chamber, and a second aperture positioned in a radially outward portion of the cover member for allowing a portion of the cooling gas stream to exit the rotor chamber. The portion of the cooling gas stream exiting the rotor chamber carries dirt particles to purge the rotor chamber.

Abstract: A thermal management system and method for a miniature gas turbine engine includes a forward cover having a filter portion along an axis of rotation of a gas turbine engine, a first lubrication passage and a second lubrication passage.

Abstract: A fan with concealed oscillating mechanism includes a main housing, a first driving motor, a second driving motor and a curved link gear all located inside the main housing, and a set of blades located outside the main housing and connected to a rotating shaft of the first driving motor. The first driving motor has a connecting rod rotatably received in a receiving tube provided in the main housing. The second driving motor is located behind and connected to the first driving motor, and has a rotating shaft being perpendicular to that of the first driving motor. The curved link gear is connected at an end to the second rotating shaft and at another end to the main housing, such that when the second driving motor operates, the first driving motor is brought to oscillate while the set of blades stably rotates to thereby change the direction of produced airflow.

Abstract: A rotating machine and associated method is disclosed that includes one or more cooling channels for providing a cooling fluid to a component. The cooling channels pass through a rotating component. The rotating machine further includes one or more particle separation slots in the rotating component in fluid communication with the one or more channels for removing particulate contamination.

Abstract: A dirt separator may be retrofit into existing gas turbine engines since it is formed of circumferentially separate pieces which may be assembled together in the gas turbine engine.

Abstract: In a first aspect, the present invention provides an air inlet cover (1) comprising a grille (2) having a plurality of radial elements (3) radiating from a center of said grille (2), each said radial element (3) comprising a vane (4) having a leading edge (5) for positioning further from a fan and a trailing edge (6) for positioning closer to a fan, the leading edge (5) of each said vane being offset from the respective trailing edge (6) thereof by substantially the same angular amount (?) for each said vane (4), whereby the vanes are pitched more steeply closer to the center of said grille (2) than remote from the center of said grille, and a circumferential element (7) comprising a bell-shaped mouth enclosing said vanes (4) and having a plurality of apertures (8) formed in a surface thereof, each respective one of said apertures (8) having a first edge (9) parallel to the pitch of a first respective vane closer to the center of said grille and a second edge (10) parallel to the pitch of a second, adjacent r

Abstract: A fluid deflector is for a fluid separator including a central axis and an enclosed wall having an open end and an inner circumferential separation surface extending about the axis to define an interior separation chamber. The fluid deflector includes a base disposable proximal to the wall open end and having a central axis collinear with the separator axis. A plurality of vanes are connected with the base so as to be spaced circumferentially about the central axis. The vanes define a plurality of flow channels each bounded by a separate pair of adjacent vanes and having an inlet and an outlet. Each vane directs flow through a bounded channel generally radially inwardly from the channel inlet toward the channel outlet and generally circumferentially and radially outwardly from the channel outlet.