Abstract: A fan includes a frame, rotor supported by this frame and having a central hub and a number of blades and a drive mechanism for rotatably driving the rotor, in addition to a ring to which the end zones of the blades are connected. The ring is assembled from two part-rings of the same form which each include a circular strip of sheet material, the free ends of which are mutually connected to form the outer surface of a truncated cone, and a third part-ring which mutually connects the inner edges of the first two part-rings. The end zones of the blades are connected to the third part-ring. The ring has a diameter of more than about 1.50 m. The number of blades amounts to at least eight. The blades are hollow and include a framework structure which is provided with a skin connected thereto.

Abstract: Apparatuses, systems, and methods for preventing foreign objects from being ingested into the air intake of a jet engine. Apparatuses can have a mount with an opening for fluid communication with an air intake of the engine, a generally pyramidal shaped tip, and at a generally frusto-pyramidal shaped shield between the tip and the mount. The tip and the shield can be generally conical, generally polygonal, generally elliptical, or generally lunal. A proximal end of the tip can overlap and attach to a distal end of the shield and a proximal end of the shield can overlap and attach to a distal end of the mount. The exposed lateral surface of the tip and/or the shield can be solid without openings therein. Systems can include a nacelle provided around a portion of the jet engine and a plurality of overlapping generally frusto-pyramidal guards attached to each other and the nacelle with a plurality of gussets.

Abstract: A particle separator for a gas turbine engine is disclosed. The particle separator includes flow dividers operable to divide flow in a gas turbine engine particle separator and flow scavengers operable to scavenge flow in a gas turbine engine particle separator.

Abstract: A material having a plurality of impurity collection spaces has an outer face facing into a cooling air flow stream for a gas turbine engine component. Impurities such as sand or dirt will collect in the plurality of spaces. In a disclosed embodiment, a honeycombed material is utilized. The material may have a surface that will sit with at least a component parallel to an axial centerline of a gas turbine engine that is to receive the collection material. The material surface may also have a component which is generally perpendicular to the axial centerline. The material may be placed in a gas turbine engine upstream of the turbine section, and downstream of the combustion section. Moreover, the collection material may be placed such that there is cleaner air flow radially inwardly of the collection material, and heavier dirt-laden air passing along the collection material such that impurities can be collected.

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 device for cooling a pet includes a fan with a housing. A motor coupled with a blade positioned in the housing. The motor is electrically coupled with a power source to energize the motor to rotate the blade. At least one member is coupled with the housing. The at least one member includes a cut-out to couple the member with an animal crate to mount the fan on the crate for cooling a pet inside of the crate.

Abstract: A blower fan includes: an impeller having a predetermined number of blades; a fan casing having an air-intake port disposed to face a central portion of base of the impeller and eccentrically housing the blower fan and defining a spiral scroll passageway between an inner wall thereof and an external circumference of the impeller, the spiral scroll passageway having an inlet portion constituting a narrow nose portion and an outlet portion constituting a wide discharge port; and a driving source for rotating the impeller. In order to minimize the noise to be released from the nose portion, the blower fan further includes a sound-reflecting means which is disposed to cover a portion of the air inlet port at a location spaced away from the nose portion by a distance corresponding to ½ of wavelength of noise in an emanating direction of noise.

Abstract: A Multi or single-stage turbo compressor with at least one compressor wheel fastened to a shaft. the shaft is mounted in a turbocompressor housing which is separated by a hub disc a front interior housing region in front of the hub disc of the compressor wheel. The driven compressor wheel delivers a fluid from an inlet channel (10) to an outlet channel. The front interior housing region comprises a wheel lateral space from which an extraction channel for the extraction of fluid is provided.

Abstract: A system and method for particle separation in a gas turbine engine centrifugal impeller bleed air system using a tangential velocity component of the compressor bleed air to centrifuge the particles radially outwardly and convey the particles circumferentially, away from a clean air outlet and towards a particle outlet where the particles are extracted from the bleed air.

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: The present invention provides a grill 10 for use in electrical equipment comprising a fan. The grill 10 comprises a substantially planar portion 90 that provides protection for (and indeed from) the blades of a fan and a handle 100 that provides means by which the grill may be held. The substantially planar portion 90 may comprise an opening 94 that facilitates stacking of a plurality of like grills 10.

Abstract: A combined debris catcher and pressure relief valve positionable between first and second ports of an inlet arrangement that is upstream of the main body of a vacuum pump. The debris catcher includes an open ended tube that is spring biased upwardly and in normal operation forms a seal with the inlet arrangement. In the raised or sealed position, incoming fluid from the system to be evacuated travels along a closed flow path through the first port of the inlet arrangement, through the debris catcher, and out through the second port of the inlet arrangement into the main body of the vacuum pump. If the inlet arrangement is hooked up initially or at any time to a system that is above atmospheric pressure, the above atmospheric pressure will overcome the upward force of the spring on the tube and cause the tube to move to an open position spaced from the inlet arrangement harmlessly venting the high pressure fluid to ambient air and avoiding potential damage or contamination to the pump.

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: A system for use with an inlet of a gas turbine through which an airflow toward the gas turbine proceeds is provided and includes a first self-cleaning stage to remove dust, snow and ice from the airflow, a second water tight stage, disposed downstream from the first stage, to prevent aerosol droplets and aqueous solutions of deliquesced particulates, which include at least portions of the dust not removed by the first stage and which are re-released into the airflow from the first stage, from proceeding along the airflow and to remove solid particulates not removed by the first stage from the airflow, and a third water removal stage, disposed downstream from the second stage, to remove from the airflow aerosol droplets leaking from the second stage.

Abstract: A fan assembly includes a fan and a fan guard positioned on the fan to protect the fan from contamination and damage during operation. The fan includes a plurality of upper corners extending outwardly therefrom. The fan guard includes a frame and a cover covering and fastened to the frame. The frame includes a plurality of protrusions extending downwardly therefrom and a plurality of fastening feet extending upwardly therefrom. The protrusions engage the upper corners of the fan, securing the frame to the fan. The cover comprises a spring component surrounding a bottom thereof, resiliently engaging the fastening feet of the frame. A plurality of pores are defined in the cover, allowing airflow produced by the fan therethrough, wherein the fan guard protects the fan from contamination and damage during operation.

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 invention provides a casing, equipment unit, fan unit and electronic equipment capable of easily implementing assembling, disassembling, attaching and so forth without using fixture components, tools, and so forth. The structure is made up of casing sections, hinge parts and a coupling part. The casing sections are made up of not less than two sections and enclosing a hosing space, and members for securing the housing space thereby. The hinge parts are members coupled with the casing sections and supporting each casing section. That is, not less than two casing sections couple the edge parts of each casing section, and bendably support each casing section. The coupling part is a member for restraining the casing sections positionally and maintaining and fixing the housing space. That is, the coupling parts detachably couple each casing section to hold the housing space on each casing section.

Abstract: A serial fan of the present invention includes a first fan and a second fan, each of which includes a housing and an impeller disposed in the housing. The housings respectively include a plurality of connecting elements, and there are several air-guiding recesses defined on the connecting elements of the first fan or the second fan, which can guide air to smoothly flow out from the housing so as to increase airflow and air pressure and reduce noise.

Abstract: A turbomachine includes a compressor having a compressor intake, and an intake system mounted upstream of the compressor intake. The intake system includes a housing and a plurality of selectively positionable vanes arranged within the housing. The plurality of selectively positionable vanes are moveable between a first position to remove a first amount of foreign particles, and a second position, to remove a second amount of foreign particles.

Abstract: A fan assembly including a pedestal supported and upwardly extending body. A control adjustable electric motor is secured to an upper end of the body. A fan subassembly includes a peripheral and depth defining shroud communicating a rear grate with a front grate. A plurality of rotatable fan blades are operated by the motor and extend from a hub rotatably supported within the shroud between the front and rear grates such that a rear induced vacuum results from rotation of the fan blades. A filter and associated bracketry secures the filter in communication with the rear grate in order to filter contaminants attracted via the induced vacuum forces to the rear of the fan during operation.

Abstract: A separator is for a turbomachine, preferably a compressor including a casing, a primary compressor shaft with an impeller disposed within the casing, and a drive shaft connectable with the compressor shaft. The separator includes a coupler having a central axis and being configured to connect the drive shaft with the compressor shaft such that the rotation of the driver shaft rotates the coupler and connected compressor shaft. A separation surface extends circumferentially about the axis so as to at least partially define a flow passage for a fluid stream, the separation surface being disposed either generally within or generally about the coupler. The separation surface is connected with the coupler such that rotation of at least one of the two shafts rotates the separation surface generally about the axis so that liquid within the fluid stream contacting the separation surface is separated from the fluid stream.

Abstract: A fan assembly includes a fan and a fan guard mounted on the fan to protect the fan from contamination and damage during operation. The fan includes a plurality of ears extending outwardly from a circumference thereof. The fan guard includes a frame and a hood made of net and mounted over the frame in a stretched manner. The frame includes a plurality of concentrically arranged annular ribs and a plurality of supporters connecting the annular ribs together. The annular ribs are spaced apart with predetermined spacing along an axial direction. A lowest one of the ribs of the frame is bent to form a plurality of fastening feet for extension of screws to threadedly engage with the ears of the fan. The hood has an outwardly convex periphery due to the configuration of the annular ribs.

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: An inlet plenum for coupling airflow from a radial airflow inlet to an axial compressor inlet for a compressor comprises a perforated inlet (PI) baffle that comprises a generally cylindrical baffle that circumscribes the compressor inlet and a plurality of apertures, each aperture perforating the baffle to pass the airflow from the radial airflow inlet to the compressor inlet and a plurality of stagnation vanes, each stagnation vane comprising a generally arc-shaped vane that extends proximate the PI baffle to establish an approximation of stagnant flow around the entire PI baffle to reduce flow distortion of the airflow between the radial airflow inlet and the axial compressor inlet.

Abstract: A fan of the present invention includes a fan housing and an impeller disposed in the fan housing. The fan housing includes a plurality of connecting elements at its air outlet. Each connecting element includes a plurality of air-guiding teeth thereon, which can guide the air to flow smoothly out from the fan housing so as to increase airflow and air pressure, and reduce the noise.

Abstract: A regenerative pumping mechanism comprises a rotor having a series of blades positioned in an annular array on one side of the rotor, and a stator having an annular channel within which the blades rotate. In order to control the axial clearance between the rotor and the stator, an axial magnetic bearing actively controls relative axial movement between the rotor and the stator. This can allow the pumping mechanism to provide controllable axial sealing between the rotor and the stator, as opposed to radial sealing.

Abstract: A fan having a housing and a motor connected to the housing via a nonconductive support member. In one form, the nonconductive support member takes the form of a grill. The motor may be connected to the grill such that separate brackets to support the motor are not needed and the motor is electrically isolated from the fan housing. Insulating members may be used to connect the motor to the nonconductive support member. Additional fasteners may be used to connect the motor to the support member. A generally rectangular box fan assembly includes a metal fan housing having a peripheral shroud portion, a nonconductive grill connected to the shroud portion, and a motor assembly connected to the nonconductive grill such that the motor assembly is electrically isolated from the metal fan housing.

Abstract: A fan blade for the fan of a gas turbine engine has a radially outer tip portion which, in use, is adjacent to a fan case of the engine. The tip portion includes a movable sealing element for sealing a gap between the tip portion and the fan case. The sealing element movably adapts to changes in the spacing of the gap to maintain a seal between the tip portion and the fan case.

Abstract: A method of operating a gas turbine engine is provided. The method includes channeling cooling air towards a shroud hanger assembly such that the cooling air flows through a cavity defined in the shroud hanger assembly, directing the cooling air through a plurality of cooling passages extending from the cavity, and discharging the air from the plurality of cooling passages towards an impingement baffle to facilitate cooling a shroud hanging from the shroud hanger.

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: 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 ventilation assembly for a wind turbine rotor hub is provided, the ventilation assembly comprising a frame fixedly mountable to the rotor hub, the frame including at least one opening, and a cover for said at least one opening, the cover being mounted to said frame to be freely rotatable with respect to said frame, wherein the cover has at least one ventilation opening to allow the ingress and egress of air and has a shielding member for shielding the at least one ventilation opening against ingress of liquid running down the rotor hub.

Abstract: Outdoor high velocity wall and pedestal mounted fans, devices, apparatus, systems and methods of operation. The fans can have water resistant motor housings with at most one rear wall located opening for allowing a power cord to pass therethrough. The switches and pull chains are connected to the fan only through the bottom of the motor housing. The bottom of the motor housing can have a drainage hole for allowing excess moisture to drain therefrom. The motor housing can be stainless steel. Additionally, the motor housing can have a powder coat finish on all parts to reduce corrosion. The motor can be an oversized inverted outdoor rated oscillating motor having improved gear mechanisms for big torques and reduces heat rise during fan operation. The fan can operate under hot and cold temperature extremes as well as during wet and dry environmental conditions.

Abstract: In the pumping unit disclosed, the friction acting on the impeller is reduced, and the efficiency is increased by at least two adjacent indentations of at least one face end of the impeller and/or of the at least one end wall of the pump chamber communicate with one another via a respective groove.

Abstract: An inlet air filtration system for a gas turbine includes, in an exemplary embodiment, an air plenum, and a plurality of filter elements mounted inside the air plenum, with each filter element including a support structure. The inlet air filtration system also includes a plurality of electrodes positioned proximate the plurality of filter elements, where the electrodes are coupled to a power source which supplies a voltage to the electrodes. The voltage is sufficient to establish an electrostatic field between the electrodes and the filter elements, and at the same time, the voltage is sufficient to produce a corona discharge from the electrodes.

Abstract: A diffuser particle separator may be integrated into a gas turbine engine to remove corrosive dust and salt particles from the engine's core air flow. The air flow may pass over a series of particle accumulator entrance orifices, trapping particles in a particle accumulator while allowing the air flow to continue unimpeded. Since dust deposits may become molten at high temperatures, removal of dust from the core and secondary airflow may be critical for long-life superalloy and ceramic components, particularly those with small diameter air-cooling holes and thermal barrier coatings.

Abstract: A gas turbine engine component having a filter mounted adjacent an impingement cavity to filter particles out of a secondary cooling airflow outboard of a cooling channel in communication with the secondary cooling airflow.

Abstract: A water cooling system of a marine engine includes a water line and a water pump. An impeller trap for the water cooling system includes a cylindrical line section having a wall and a pair of ends. A fitting is disposed on each end of the line section for mating with a corresponding portion of the water line of the water cooling system. The line section is connected to the water line of the water cooling system downstream of the water pump. A screen is disposed in the line section and is secured to an inner surface of the wall of the line section. The screen captures pieces of a water pump impeller in the event that the impeller breaks or shears.

Abstract: A screen member, for a vent assembly including a housing with an inner side, has a base ring and a screen coupled to the base ring. The attachment mechanism is unitarily formed with the base ring to enable readily removal of the screen member. A plurality of cantilevered extending members form part of the attachment mechanism. The extending members include a retaining member on its distal end to secure the screen member in the cut out of the housing. Also, a spacer is on at least one extending member to reduce the play between the extending members and the housing.

Abstract: A tandem axial turbine comprises a front, confusor funnel-shaped runner having inner blades and capable of accelerating and directing an oncoming flow toward a co-axial rear runner which rotates in an opposite direction. A tangential turbine has a hub, blades capable of rotating in relation to the hub between positions across and along the flow, and a propulsion springs for controlling the movement of the blades in relation to the hub and the transfer of the energy. A second tangential turbine comprises a runner having a hub and blades and a shroud capturing the runner from above and around and permitting the blades to dip into water flowing immediately below the hub and an opening of the shroud. A surface vessel comprises a stabilized frame rotatably affixed on a vessel hull about a center of wave induced rocking motions of the vessel and therefore isolated from a rocking motion of the vessel.

Abstract: The present invention relates to a filtration device of water pump comprising a water inlet at the water inlet end and a water outlet at the water outlet end, water flow being caused by the impeller, which is driven by the power source, to move from the water inlet to the water outlet, wherein one or more filtration device(s) is(are) assembled in at least one of the water inlet end and the water outlet end, and thereby clean water is obtained by the water passing through the filtration device along with the pumping action conducted by the water pump. Therefore, both effects of providing water flow with sufficient water pressure and clean water quality can be achieved therewith.

Abstract: An exhausting system and an exhausting pump connected to a processing chamber of a substrate processing apparatus are provided. The exhausting pump is provided with at least one rotary blade and a cylindrical intake part disposed at the processing chamber side from the rotary blade. The exhausting pump includes a reflecting device disposed inside the intake part and having at least one reflecting surface oriented to the rotary blade.

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: Disclosed herein is a liquid pump for use with a fluid circulation system for a recreational water body. The liquid pump includes a strainer housing, a pump housing assembly secured to the strainer housing, and a lock ring fastened to the pump housing assembly. The pump housing assembly includes an outlet that is rotatable between a first position and a second position and further includes an annular protuberance defining an inlet. The strainer housing includes an outlet, and the annular protuberance extends through the outlet of the strainer housing into a chamber thereof. A clip is positioned within the chamber and releasably secures the annular protuberance so as to inhibit inadvertent disengagement of the strainer housing from the pump housing assembly.

Abstract: An assembly for securely mounting and retaining a protective grill onto an appliance housing, comprising fasteners secured to the appliance housing and corresponding prongs extending from the protective grill wherein the grill may be removably mounted to the appliance housing by inserting the free end of the prong into an aperture in the fastener, whereby spring tension resiliently urges a portion of the fastener toward the opening over which the grill is mounted and around the prongs.

Abstract: To obtain a hand-held powered suction device, which secures a high suction performance by a lightweight fan while preventing a blade of the fan from being damaged or being broken due to a sucked object. Forming an air intake opening along a driving axis of a fan in a portable-type fan case and providing a fan protection member to be rotated at an upstream side in an air intake direction of the fan within the intake opening being attached so as to be integrally rotated with the driving axis, a shock absorbing surface that is perpendicular in an air intake direction of the intake opening is formed on the fan protection member.

Abstract: An outdoor unit for an air conditioner is disclosed. The outdoor unit according to the present invention comprises a housing which has an air inlet and an air outlet, a ventilation fan rotatably mounted in the housing, and a fan guard connected to the housing to cover the air outlet. Here, the fan guard comprises a plurality of closed ribs arranged sequentially and concentrically between a center and an outline thereof, and a plurality of radial ribs arranged in radial directions to interconnect the plurality of closed ribs, in such a manner that some of the closed ribs, which are disposed at intermediate positions near tips of the ventilation fan, are at a further distance from the ventilation fan than the other closed ribs, which are disposed near the center and the outline.

Abstract: The present invention is generally directed to an apparatus providing real time adaptive active fluid flow cooling, for cooling an electronic system, an electronic system utilizing the same, and a method for providing real time adaptive active fluid flow cooling. The electronic system consists of a circuit board having a heat generating component, a heat dissipating element mounted to the heat generating component and an apparatus for providing real time adaptive active flow cooling. The apparatus consisting of a plurality of active cooling devices that remove heated air or fluid with ambient air or fluid by propelling an fluid flow stream in a first direction toward the heat dissipating element, and where at least one active cooling device contained in the plurality of active cooling devices propels an fluid flow stream in a second direction toward the heat dissipating element.

Abstract: An in-line motor and pump assembly is supported at the bottom of a fuel storage tank by a pipe and an internal concentric conduit for housing electrical conductors extending therewithin to the motor. An impeller, coaxial with the rotor of the motor, draws the fuel into an annular passageway surrounding the stator of the motor. Further passageways convey the fuel to an annular passageway defined between the pipe and the conduit for discharge external of the storage tank. A low pressure environment attendant the inflow of the fuel is used to channel fuel for lubrication and cooling purposes to a lower journal bearing and thrust bearing supporting a common shaft for the impeller and the motor. A high pressure environment attendant outflow of fuel is used to channel fuel for lubrication and cooling purposes to a journal bearing supporting the upper end of the shaft.

Abstract: A method for cleaning a filter having Z-media includes providing a filter having Z-media and cleaning the media construction by directing a pulse of compressed gas into the media construction through the downstream flow face. Filter elements useable with such methods include elements made of Z-media. An example system utilizing the method includes a gas turbine air intake system.