Plural Runners Supported For Relative Motion Or On Separate Shafts Patents (Class 415/60)
  • Patent number: 6808366
    Abstract: Multiple, timed three-lobed rotor that are more efficient yet uncomplicated and easy to produce. A rotor lobe with additional reaction surfaces near the tip to increase the angle of rotation that produces power. A “flow through” rotor having end plates that facilitate mounting more than one rotor on a common axis with rotationally varied timing and sequence, such that power delivery is smooth. A flow shielding and directing device that increases the efficiency of reaction surface rotors. Possibilities include replacement or augmentation of: existing electrical energy prime mover dynamos, air compressing, pumping, milling, and other power needs. The dynamo can be built using low-tech, low-cost materials and methods, and is inherently resistant to over speed and damage from periodically high velocity fluid flow.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: October 26, 2004
    Assignee: Vertical Wind Turbine Technologies, LLC
    Inventor: George W. Sikes
  • Patent number: 6784566
    Abstract: A pair of vertical axis wind turbines are arranged in close proximity to each other so that their vortices interact with each other to provide enhanced aerodynamic efficiency. The wind turbines are spaced as closely as possible while providing for machine and personnel safety. Adjacent wind turbines rotate in opposite directions to enhance the coupled vortex effect. The vertical axis wind turbines may be located underneath a row of horizontal axis turbines in a “bush-tree” configuration to provide greater energy extraction from a parcel of land. The vertical axis turbine includes a simple, redundant, fail-safe braking system that self-resets after a fault condition clears. The braking system includes mechanical and aerodynamic braking and also includes a speed governor that stops the wind turbine even in the event that the primary brake fails.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: August 31, 2004
    Inventor: Robert Nason Thomas
  • Patent number: 6739831
    Abstract: A cooling device for projector, comprising a light source, an exhaust fan, an air directing fan, an air duct, air inlet windows, an optical engine, a circuit board, a light cut, and a power supply to constitute a projector device with high brightness and high contrast. The projector includes a design that directs hot air flow directly into fan blades of an exhaust fan, thereby effectively reducing adverse effects and solving problems of conventional technology, such as failure to direct hot air flow into the fan blades of the exhaust fan, resulting in excessively high average temperature in the fan hub area that is in alignment with the hot air current, and high working temperature of motor bearings, control circuits, rotors and stators in the fan hub, so that the fan hub can be operating under lower temperatures, thereby enhancing normal performance, effective working life and reliability of the fan and the projector.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: May 25, 2004
    Assignee: Coretronic Corporation
    Inventors: Nien-Hui Hsu, Bor-Bin Chou, Shang-Hsuang Wu
  • Patent number: 6722859
    Abstract: A multi-fan assembly with a built in electromagnetic control device composed of a magnetic induction mask fixedly received in a space in a rotatable member, a magnetic flux coil fixedly connected to a central main shaft and snugly surrounded by the magnetic induction mask, and a current control unit also fixedly connected to a central main shaft, wherein the current control unit sends a desired current to the magnetic flux coil to produce a magnetic flux which magnetizes the silicon steel core of the magnetic flux coil to attract the metal magnetic induction mask thereby generating a resistant force to reduce the revolving speed of the two member fans round the central main shaft. Three options are designed for manipulating the current coming out of the current control unit; a direct wired wall control switch, or a wireless remote controlling using infra-red design or an automatic speed control using a speed detecting sensor.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: April 20, 2004
    Inventor: Chia-Teh Chen
  • Publication number: 20040028522
    Abstract: The present invention is to provide a modular fan assembly mounted in an electronic device comprising a frame having a defined opening for air circulation; at least two spaced apart fans disposed within the frame, each fan having a stator and a plurality of blades attached to the stator; and a divider disposed between the fans for partial separation wherein an outer end of the divider is smaller than a depth of the frame, thereby leaving a distance between the outer end of the divider and an outer surface of the frame so that an area of the opening for an escape of air from the fans is increased for effectively reducing a resistance of air flow and obtaining a maximum draft by means of the divider.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 12, 2004
    Applicant: Inventec Corporation
    Inventors: Shu-Ju Lin, Yih-Wei Tzeng
  • Patent number: 6655908
    Abstract: A heat-dissipating assembly includes a plurality of heat-dissipating devices, each of which includes a frame having at least one locating window for allowing the heat-dissipating device to inhale air and discharge airflow, and a stream-guiding wall formed beside the locating window; and at least one blade structure mounted in the locating window of the frame. In addition, each heat-dissipating device further includes at least one engaging medium to be engaged with a corresponding engaging medium of another heat-dissipating device, thereby allowing the plurality of heat-dissipating devices to be combined in parallel, side by side, or in tiers.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: December 2, 2003
    Assignee: Delta Electronics Inc.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Chen-Chang Lin
  • Patent number: 6648590
    Abstract: The present invention relates to a parallel fan. The parallel fan includes an integrally formed fan frame having plural pairs of locating windows and a plurality of fans being respectively mounted in the plural pairs of locating windows. The parallel fan has an external single pair of power lines. Each pair of locating windows includes an inlet and an outlet for respectively enabling the fan to inhale from the inlet and discharge from the outlet.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: November 18, 2003
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Wei-Chen Kuo
  • Patent number: 6647730
    Abstract: In a turbine engine, low temperature air is diverted from a low pressure section of the compressor section of the engine to cool the high pressure turbine of the engine. Low pressure air is diverted from the compressor section, and its pressure is thereafter increased. Preferably, the pressure is increased in an intermediate cavity in the engine, where rotational energy of the diverted air is converted to static pressure by way of an obstruction that converts dynamic head of the air in the cavity into static pressure.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: November 18, 2003
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Xiaoliu Liu
  • Patent number: 6626638
    Abstract: The ribbon drive generation apparatus is comprised of a ribbon-like curved shape, composed either of metal or other suitable material, attached to a central axle with the complete apparatus being contained in a tube having a constant diameter for the length of the tube. A front portion of the tube has a pivot or tether and the rear portion of the tube has a drag means, such as fins, so as to cause rotation of the tube until it is oriented parallel to the flow. In another embodiment of the present invention, the electrical output of the ribbon drive generation apparatus is connected to a storage battery so as to store energy in times of high flow and make up for generating deficiencies during times of lesser flow. In yet another embodiment of the present invention, plural generating stages are serially arranged to adapt to flow variation and provide smooth start-up. Bypass vents and coupling means are located between each stage.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: September 30, 2003
    Inventor: Jonathan B. Rosefsky
  • Patent number: 6551053
    Abstract: A hydro-electric generator for producing electricity in areas of flowing water. The hydro-electric generator includes a flotation device. An electric generator is mounted on the floatation device. A paddle wheel is rotatably mounted to the floatation device. The paddle wheel is mechanically coupled to the electric generator. The floatation device is anchored in an area of flowing water such that a current rotates the paddle wheel and electricity is produced.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: April 22, 2003
    Inventor: C. Ed Schuetz
  • Patent number: 6511291
    Abstract: A blower assembly for a split air conditioner comprises a casing having a bearing trough in one end, a pair of rubber sleeve troughs in the other opposite end, a plurality of central hollow posts each having a threaded hole; and a blower having a plurality of blower units each having a shaft in one end and a hole in the other opposite end, at least one bearing seat, a plurality of bearings, at least one motor, a plurality of rubber sleeves mounted on the motor and together rested on the rubber sleeve troughs, and a plurality of plates for threadedly securing the rubber sleeves. By utilizing these components, a variety of advantages are obtained such as an increase of draft, more stable operation, no abnormal expansion and contraction, and noise reduction.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: January 28, 2003
    Inventor: Pong Koochingchai
  • Publication number: 20020141861
    Abstract: A casting technique is disclosed which improves efficiency and reduces fabrication and assembly cost for a centrifugal compressor. The volute is cast integrally with the impeller housing to allow closer radial tolerances to be used to improve efficiency. In the preferred embodiment, compressors for multi-stage compression are assembled with intercoolers and the integral volute is cast together with the impeller housing and the lower gearbox housing and the associated intercooler. Efficiency increases of 2% or more are achievable. In multistage applications, efficiency gains in the early stages are compounded in each subsequent stage.
    Type: Application
    Filed: March 27, 2001
    Publication date: October 3, 2002
    Applicant: Cooper Turbocompressor, Inc.
    Inventors: Edward S. Czechowski, John Battershell, Robert M. Kolodziej
  • Patent number: 6382904
    Abstract: A wind power unit, that uses the power of wind, is made as a support installed power-generating unit comprising at least one turbine with a nozzle apparatus mechanically connected to a generator, a central shell, an annular front shell having at least one input channel of the turbine that forms with the central shell an output channel of the turbine, and annular outside shell that forms with the central shell diffuser output channel. The power-generating unit is equipped with an additional annular shell forming with external surfaces of the front and central shells narrowing-expanding first intermediate channel connected in its intermediate part to turbine output channel, while, with the internal surface of the outside shell, a second intermediate channel connected long with the first intermediate channel is used to diffuse the output channel.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: May 7, 2002
    Inventors: Igor Sergeevich Orlov, Emmanuil Avraamovich Sobol, Mikhail Andreevich Egorov
  • Patent number: 6357997
    Abstract: A ribbon drive power generation system and method is disclosed. The system is equipped with an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils increases from the first end to the second end of the tube. Moving water is directed into the first end, an axial component of momentum of the water is decreased via the rotating ribbon, and the rotation is used to induce electricity or drive an electrical generator. The scalability and modular nature of the present invention allow flexible implementation.
    Type: Grant
    Filed: July 29, 2000
    Date of Patent: March 19, 2002
    Inventor: Jonathan B. Rosefsky
  • Patent number: 6340283
    Abstract: A pair of high speed blowers are pivotally mounted in a vertical plane on a movable frame structure. Each blower has blades turning in an opposite direction from the other blower. The blowers are locked in place at an angle of 10 to 60 degrees with respect to each other so that air emanating from the blowers impinge on each other downstream from the blowers. The air impingement creates a triangular type expanding air stream pattern downstream from the impingement area.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: January 22, 2002
    Assignee: Graves Spray Supply, Inc.
    Inventors: Thomas A. Hedger, Jeff Neal Bullock
  • Publication number: 20010028842
    Abstract: The present invention discloses a parallel fan. The parallel fan includes an integrally formed fan frame having plural pairs of locating windows and a plurality of fans being respectively mounted in the plural pairs of locating windows. The parallel fan has an external single pair of power lines. Each pair of locating windows includes an inlet and an outlet for respectively enabling the fan to inhale from the inlet and discharge from the outlet.
    Type: Application
    Filed: March 2, 2001
    Publication date: October 11, 2001
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Wei-Chen Kuo
  • Publication number: 20010028841
    Abstract: A fan assembly includes a first fan device having an engaging medium, and a second fan device having a corresponding engaging medium for engaging with the engaging medium of the first fan device, thereby allowing the second fan device to be combined with the first fan device. The fan device includes a fan frame having the engaging medium adapted to engage with the corresponding engaging medium of another fan frame of another fan device, and a fan secured in the fan frame.
    Type: Application
    Filed: March 1, 2001
    Publication date: October 11, 2001
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Wei-Chen Kuo
  • Patent number: 6246125
    Abstract: A portable generating system for converting either water or wind energy into electricity comprises a paddle wheel assembly having a housing and a plurality of impellers rotatably mounted therein. The housing defines inlet and outlet openings for receiving a fluid stream, whether water or air, therebetween so as to rotate the impellers. The impellers are axially connected to a generator for producing electricity upon impeller rotation as the fluid stream flows between the housing openings. The generator may be mounted within the paddle wheel housing adjacent the impellers or at a distance therefrom and coupled thereto with a shaft. A plurality of mounting brackets are fixedly attached to the outer surface of the housing. The generating system further includes a plurality of height-adjustable support legs that may be coupled to the mounting brackets so that the paddle wheel housing may be positioned at a predetermined height above a support surface.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: June 12, 2001
    Inventor: Robert C. Axtell
  • Patent number: 6168373
    Abstract: An environmentally non-intrusive multiple turbine unit for adjustable deployment in water. The turbines are captured in a shroud having an integrally formed augmentor ring and ballasting member to improve efficiency. The multiple turbine arrangement effectively counteracts the rotational counter-torque of individual turbines, thereby enabling stable deployment of the unit without requiring rigid stabilizing structures.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: January 2, 2001
    Inventor: Philippe Vauthier
  • Patent number: 6109863
    Abstract: A fully submersible apparatus for generating electricity from liquid flow as in an ocean or river current. A buoyant structure is fully submersible and has at least one pair of counter-rotating side-by-side motors with a plurality of angularly spaced radial vanes each having a plurality of rotatable subvanes such that current impinging upon the motor will impinge on a closed or solid vane to effect rotation of the motor and its shaft during a first phase of the rotational cycle and will impinge on open vanes for free passage therethrough on the return or second phase of rotation of the motor. Motors may also be provided with vanes in overlying and underlying relationship. An associated method is provided.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: August 29, 2000
    Inventor: Larry D. Milliken
  • Patent number: 5836738
    Abstract: One manifestation of an advanced superventuri power source comprises: (i) a series of at least three venturi tubes with at least one threesome of the tubes labeled an alpha-, beta-, and gamma-venturi tube respectively, and of predetermined successively increasing flow capacity respectively; (ii) the alpha- and beta-venturi tubes each having an open entrance to permit flow through the respective open entrance and out of the respective open exit; (iii) respective inlets of the threesome each facing the intended direction of flow; (iv) the open exits of the alpha- and beta-venturi tubes placed adjacent the throats of the beta- and gamma-venturi tubes, respectively, so that respective central axes of the threesome essentially merge into a central super-axis along an intended line of flow; (v) as referenced from the super-axis, the inlets of the alpha-, beta-, and gamma-venturi tubes being positioned to intercept relatively inner, intermediate, and outer portions of the selected medium as an alpha-, beta-, and gam
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: November 17, 1998
    Inventor: Clifton D. Finney
  • Patent number: 5772500
    Abstract: A ventilation unit for operative arrangement within an electronic apparatus, the unit including an exterior side having a first exhaust port separated from a second exhaust port, an adjacent interior side having first and second incoming passageways, and a first and second powered air mover; one powered air mover can be located closer to the exterior side than the other air mover. The first powered air mover can be in communication with the first incoming passageway and the first exhaust port, and separated from the second powered air mover by use of a baffle extending generally from the exterior side around and between the two air movers. Additional powered air movers can be accommodated.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: June 30, 1998
    Assignee: Symbios, Inc.
    Inventors: Robert T. Harvey, Tina M. Reintjes
  • Patent number: 5720661
    Abstract: The ventilating fan system comprises an air flow passage including a duct for guiding the air in a room to outside and a ventilating fan arranged in the air flow passage; whereby said ventilating fan is an inversion type ventilating fan, in which opposed rotating blades arranged in a direction perpendicular to flowing direction of the air are rotated in reverse directions, and the ventilating fan is arranged at an end portion of the air flow passage closer to outside and sucks the air in the room and discharges it to outside.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: February 24, 1998
    Assignees: Marix Co., Ltd., Seiwa Precision Ind. Ltd.
    Inventors: Kiyoshi Yoshizawa, Hajime Okazaki
  • Patent number: 5658130
    Abstract: A window mounted oscillating fan. The fan has two blower modules each having a motor, fan blade, and diffuser. The diffuser is fixed in a stationary position relative to its fan blade. The window fan oscillates by pivoting all blower modules simultaneously through a single motorized oscillation mechanism. The blower units may be arranged to discharge air in parallel, or alternatively, in different directions. The blower units pivot about an axis inclined from the vertical, so that oscillation has a vertical component as well as horizontal. In different embodiments, the fans operate in tandem, facing the same direction at all times, or oscillate in different directions, thereby diffusing incoming air. The window fan has an air filter, and manual and automatic controls including a touch sensitive on-off switch, a thermostatic on-off switch, and a speed selector.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: August 19, 1997
    Assignee: Holmes Products Corp.
    Inventors: Andrew Goldstein, David Feer, Robert Barker
  • Patent number: 5639208
    Abstract: A rotary turbine employs rotors that are rotated primarily by the frictional forces of a pressurized medium flowing through a gap that separates the rotors from the stationary housing. The rotors are coupled to a source of pressurized medium that creates a medium flow through the gap. The frictional forces between the flowing medium and the rotors create a torque that rotates the rotors. A compressor is formed of a rotor assembly that includes first and second counter-rotating rotors having substantially smooth surfaces. The rotors are separated by a gap that allows the medium to flow therethrough, with the surface of at least one of the rotors contacting the medium, such that the flow of the medium through the gap is induced by surface friction between the contact surface and the medium.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: June 17, 1997
    Assignee: Illinois Technology Transfer LLC
    Inventor: Peter F. Theis
  • Patent number: 5540548
    Abstract: A redundant blower unit is installed in a rack above another unit containing heat-emitting electrical elements (such as CPU cards) in order to draw air through the underlying unit and out to atmosphere. Four blowers in the blower unit draw air from a plenum, each blower discharging into an individual exhaust duct leading to the exterior. Two blowers are positioned at a first tier relative to the bottom of the plenum and the other two at a second tier higher than the first tier. If one blower fails, its exhaust duct may malfunction as an air inlet, in which case the incoming air is mixed with exhaust air and discharged through the other blower in the same tier as the failed blower. Thus the efficiency of the two blowers in the other tier is not impeded.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: July 30, 1996
    Assignee: Sun Microsystems, Inc.
    Inventors: Anthony N. Eberhardt, Eddie Y. Wong, Chin Y. Cheng, Mario J. Lee
  • Patent number: 5520505
    Abstract: An energy conversion device which comprises a stacked array of alternating yawable and fixed toroidal modules about a central core structure. The yawable toroids have typically four impact impellers mounted in their peripheral flow regions for the purpose of capturing flow energy. The fixed toroids are mounted to complement and further enhance fluid flow impact impeller energy capture and to provide housing means for a variety of matter both associated and unassociated with the energy system. The stacked array of a toroid with impellers, designated a Toroidal Rotor Amplifier Platform (TRAP.TM.), and a toroid without impellers, designated a Toroidal Wind Frame (TWF.TM.), is referred to in aggregate, when used for wind energy conversion, as a Wind Amplified Rotor Platforms (WARP.TM.) system. Under wind energy conversion use, a WARP.TM.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: May 28, 1996
    Inventor: Alfred L. Weisbrich
  • Patent number: 5518363
    Abstract: A rotary turbine including a source of a pressurized medium and a rotor assembly. In one embodiment, the rotor assembly includes first and second rotors, and the surface of each rotor is substantially smooth. The pressurized medium flows between the rotors, turning the rotors. The smooth rotor surfaces do not cause substantial turbulence in the medium. Accordingly, the exit velocity of the pressurized medium is maintained at a substantial higher level than if the rotors included blades or other protrusions extending outwardly.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: May 21, 1996
    Assignee: Illinois Technology Transfer LLC
    Inventor: Peter F. Theis
  • Patent number: 5478214
    Abstract: A compact redundant cooling module has four fans operated by two electric motors, one electric motor serving to operate two fans at one time to cool a heavy industrial engine as required for efficient operation; the other motor and pair of fans being rotated but not operated, in order to provide a backup system.
    Type: Grant
    Filed: February 9, 1994
    Date of Patent: December 26, 1995
    Assignee: Illinois Blower, Inc.
    Inventors: William B. Howarth, William B. Howarth, Richard J. Bursh
  • Patent number: 5464320
    Abstract: A superventuri power source comprises: (i) a series of at least two venturi tubes with at least one twosome of the tubes labeled an alpha- and a beta-venturi tube, respectively, and of predetermined successively increasing flow capacity, respectively; (ii) the alpha-venturi tube having an open entrance and an open exit to permit flow through the open entrance and out of the open exit; (iii) respective inlets of the twosome each facing the intended direction of flow; (iv) the open exit of the alpha-venturi tube placed adjacent the throat of the beta-venturi tube so that respective central axes of the twosome essentially merge into a central super-axis along an intended line of flow; (v) as referenced from the super-axis, the inlets of the alpha- and beta-venturi tubes being positioned to intercept relatively inner and outer portions of a selected medium as an alpha- and a beta-flow, respectively, whereby alpha-flow as exhaust from the open exit of the alpha-venturi tube joins accelerated beta-flow adjacent the
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: November 7, 1995
    Inventor: Clifton D. Finney
  • Patent number: 5429480
    Abstract: Improved wind-engine, comprising a frame (1) and several wind devices (2) mounted on different stages, one above the other on transversal parts (4) of this frame (1) with at least one separation wall (5, 6) mounted on the frame (1), between the wind devices (2) situated one above the other.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: July 4, 1995
    Assignee: Gemaro A.G.
    Inventor: Germaine Van Der Veken
  • Patent number: 5382132
    Abstract: A toothed wheel gear unit for a compressor system includes a central wheel gear (5) which drives output shafts (9) connected with one or more compressors by way of pinions (7) on the output shafts (9). On at least one of the output shafts (9a) the pinion forms the sun gear of a planetary gear (15). The planet carrier (23) of the planetary gear (15) is held stationary, and the ring gear (17) of the planetary gear (15) has outer teeth (27) in engagement with the central wheel (5) and inner teeth meshing with the planet gears (21) rotatably supported on the planet-carrier (23).
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: January 17, 1995
    Assignee: BHS-Voith Getriebetechnik GmbH
    Inventor: Jurgen Mendel
  • Patent number: 5289042
    Abstract: The wind operated generator has a housing having a shaft opening for receiving an outer turbine tube shaft extending longitudinally through the shaft opening. An inner turbine has an inner tube shaft extending longitudinally through the outer tube shaft. Roller means are provided for supporting the outer and inner tube shafts within the housing. Roller ring means are interposed between the inner and outer tube shafts and the housing for limiting axial movements between the outer and inner tube shafts with respect to the housing. Magnetic means are carried on outer and inner tube shafts with corresponding juxtaposed electromagnetic pick-up means to provide an electrical output, the inner turbine means having scroll-type vanes directing a coplanar flow of air to actuate the outer turbine having open-ended box-type vanes.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: February 22, 1994
    Inventor: Edward Lis
  • Patent number: 5230604
    Abstract: A self-contained fan turret unit for use with a tower air recirculating system includes a housing positionable for attachment to the tower system. The housing includes an extendable column assembly bearing a turret assembly to which are attached one or more fans, inlet bells and discharge cones with the turret assembly being movable from a position within the housing to one above the housing by the column assembly. The turret is supported by an air spring isolator and, when extended, is connected to the housing and the tower unit by flex joint isolators. A cowling is also provided for releasable attachment to the turret. The turret is rotatable and extendable arms are provided to interconnect the column assembly and the fans for selective removal thereof from the turret.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: July 27, 1993
    Assignee: Air Enterprises Incorporated
    Inventors: Donald L. Glaser, Ronald L. Eckstine
  • Patent number: 5178520
    Abstract: A centrifugal or rotary double pump has a singular circular casing surmounting two motors driving individual rotors within the casing. Above a flat side of the casing is attachable to the device serviced by the double pump and receives an insert defining the inlet and outlet apertures and within the housing, defining two pump units each in conjunction with the respective rotor.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: January 12, 1993
    Assignee: Wilo-Werk GmbH & Co. Pumpen- und Apparatebau
    Inventor: Gunter Strelow
  • Patent number: 5161939
    Abstract: The disclosure relates to a fully integrated single stage centrifugal air compression system that exhibits a relatively high flow rate at relatively low pressure. The air compression system comprises a single impeller that is driven through a belt drive by a conventional electric motor. A novel parallel wall axially split diffuser converts the high kinetic energy of air leaving the impeller into pressure energy. Cooling of the air compressor is achieved by an integral fan on the motor pulley which draws filtered ambient air into a plenum. Plenum air is ducted through a novel system of heat exchangers which draw heat from the compressor bearings. A passage through the center of the compressor drive shaft conducts pressurized air from the plenum through the drive shaft to cool the bearings, resulting in a bearing running temperature slightly above ambient.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: November 10, 1992
    Assignee: Turbo Concepts, Inc.
    Inventor: David M. Stadler
  • Patent number: 5156534
    Abstract: A rotary machine having a pair of back to back turbines in serial flow relationship is disclosed. Various construction details are developed which permit for a compact design. In one detailed embodiment the turbine has a housing having an inlet manifold and an exit manifold which are disposed between the outlet manifold for an associated turbopump.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: October 20, 1992
    Assignee: United Technologies Corporation
    Inventors: N. Frank Burgy, Alfred M. Palgon, Bruce R. Branstrom
  • Patent number: 5154571
    Abstract: A multistage turbocompressor with a two-stage transmission with a double intermediate cogwheel (5) consisting of two cogwheels (51 and 52). The first cogwheel has a larger module than the second cogwheel and engages only a central cogwheel (2) that drives the pinion shafts (3 & 4) in the first stage. The second cogwheel engages only the pinion shafts (6, 7, & 8) in the second stage.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: October 13, 1992
    Assignee: Deutsche Babcock-Borsig Aktiengesellschaft
    Inventor: Heinrich Prumper
  • Patent number: 5120208
    Abstract: A molecular drag pump for delivering a gas under molecular flow conditions comprises a pair of parallel, helically threaded rotors rotatably mounted in a stationary housing. The rotors have respective helical threads and respective helical grooves, and are held in close mesh with each other. The helical threads are helically inclined in one direction to the axes of the rotors, and have a flank angle such that the helical threads are closely received in the respective helical grooves while keeping the threads out of contact with each other. The rotors are rotated in one direction about their respective axes to move a gas introduced through an inlet port toward an exhaust port axially along the rotors.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: June 9, 1992
    Assignee: Hitachi Koki Company Limited
    Inventors: Takeshi Toyoshima, Mitsuo Ogura
  • Patent number: 5100290
    Abstract: A Kaplan turbine is provided. The Kaplan turbine includes a turbine shaft having a solid shaft and turbine blades on one end thereof. The turbine shaft has an end distal from the turbine blades which distal end includes a hollow shaft, a portion of the hollow shaft being developed as a cage. A drive shaft is connected on one end to a generator. The other end of the drive shaft extends within the hollow shaft and into the cage. The cage includes a gear assembly for transmitting rotational force from the turbine shaft to the drive shaft. A housing surrounds the cage and the gear assembly. The housing can be mounted on a foundation. The Kaplan turbine has thrust bearings mounted within the housing at interfaces between the cage and the housing. The Kaplan turbine also has radial bearings mounted in the housing at interfaces between the solid shaft and the housing and between the hollow shaft and the housing, respectively.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: March 31, 1992
    Assignee: Mannesmann Aktiengesellschaft
    Inventor: Gunter Berger
  • Patent number: 5096373
    Abstract: A fan assembly with a single fan housing that has at least one fan passage adapted to allow air to flow through the housing. A separate fan subassembly is snapped into a motor housing formed within the passages of the fan housing. The subassembly includes an electric motor that rotates an impeller. The rotation of the impeller creates an airflow through the air passage. Attached to the surface of the housing is a conductor that extends from the motor, to an electrical connector that supplies power to the motor from an external power source. The air passage has rounded entrances and is formed such that the passage is shaped like a venturi tube. The rounded edges reduce the head loss through the passage by an order of magnitude, decreasing the pressure drop across the housing and improving the overall efficiency of the fan.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: March 17, 1992
    Assignee: Sun Microsystems, Inc.
    Inventors: Dimitry Struve, James G. Ammon, Philip G. Yurkonis
  • Patent number: 4767262
    Abstract: A fan slide-in unit, module or chassis of the type used for cooling electronic assemblies. The fan slide-in unit constructed in modular manner having a plurality of fan installation locations arranged in rows and which comprises two half-shells made from substantially acoustically inert material. The number and location of the individual fans can comply with the needs of the particular individual, the installation locations left free being made air-impermeable. The ready electrical connection possibility provided for each installation location permits an easy changeover. In addition, the mounting of the individual fans in the half-shells takes place in solid-borne sound-decoupled manner, so that essentially there is only the noise caused by the air flow. The fans used are controlled in unitary manner by a manually adjustable control block, which can be guided in a temperature or parameter-dependent manner.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: August 30, 1988
    Assignee: Knurr-Mechanik Fur Die Elektronik Aktiengesellschaft
    Inventor: Peter Simon
  • Patent number: 4764683
    Abstract: An improved wind powered generator includes a streamlined housing rotatably connected with a fixed base and a pair of helical rotors rotatably connected with the housing for driving a pair of electric generators when the rotors are rotated by the wind. The housing includes forward and rear nacelles which define vertical side openings in the housing in which the rotors are arranged, with the helical vanes thereof partially protruding from the housing. The nacelles serve to direct the wind stream against the rotor vanes with minimal disturbance, whereby the helical rotors capture the maximum amount of kinetic energy from the wind for conversion to electricity.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: August 16, 1988
    Assignee: Lloyd A. Smith
    Inventor: Donald E. Coombes
  • Patent number: 4738584
    Abstract: A dual impeller recirculating pump having a plurality of simultaneously activated motors with counterrotating shafts coupled to the motors. An impeller is coupled to each shaft and rotated thereby. The impellers rotate within an impeller housing divided into individual sections, each section opening into a common outlet coupled so that counter rotation of the impellers forces water entering the housing sections out of each section into the common outlet which acts as a mixing chamber merging the fluid flow and thus increasing the flow rate and efficiency of the pump.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: April 19, 1988
    Inventor: Carl Price
  • Patent number: 4606697
    Abstract: A wind-powered prime mover comprising a pair of elongate, vertically extending, laterally spaced parallel rotors with a plurality of circumferentially spaced radially outwardly projecting circumferentially and longitudinally extending vanes. The rotors are arranged so that the vanes of each rotor projects between adjacent pairs of vanes of the other rotor as the rotors rotate. The rotors are rotatably supported atop a turn-table which turns to dispose the lateral plane on which the axes of the rotors occur at right angle to prevailing wind. Wind directing shrouds are engaged about the lateral outside halves of the rotors and function to direct wind from said outer halves of the rotors laterally inward toward and between the lateral inner halves of the rotors. The windward sides of the shrouds define a wind gate through which wind moves into engagement with the rotors and are pivotally movable to increase and decrease the lateral extent of the wind gate to throttle the wind, as desired.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: August 19, 1986
    Assignee: Advance Energy Conversion Corporation
    Inventor: Gerhard H. Appel
  • Patent number: 4327815
    Abstract: A rotational mechanism to be disposed midway in a fluid passage may be utilized in a silencer, rotary pump, or the like. The mechanism is essentially provided with a casing defining a spherical chamber, a pair of shafts respectively having axes passing through the center of the interior space of the casing and crossing each other in a plane substantially perpendicular to the flow direction of the fluid, and a pair of impellers having at least two flat plate vanes and at least two bent vanes alternately positioned to the flat plate vanes. The impellers are related to each other such that one flat plate vane is abutted on one bent vane of the other impeller so that every two vanes can constantly partition the spherical space to be able to diminish the noise of the flow or to transport the fluid as a rotary pump with one impeller being driven and the other impeller being idly rotated, by making isolated spaces of different volume for creating the force of pushing away the fluid.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: May 4, 1982
    Inventor: Tetsuo Hattori
  • Patent number: 4204126
    Abstract: A guided flow wind power machine having inter-meshing tubular fan blades is disclosed. The device includes a main frame which is rotatively mounted to permit it to continuously face the wind directly. The main frame carries three separate power cells each having a plurality of tubular fans, all of which are inter-connected to drive a non-linear alternating current generator. An energy storage system is also disclosed and includes a plurality of massive weights that are raised hydraulically to store excess power generated by the fans. Power is withdrawn from the storage apparatus by permitting the weights to act against the hydraulic system to drive a reversible pump-motor.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: May 20, 1980
    Inventor: Richard E. Diggs
  • Patent number: 4203702
    Abstract: A water driven engine comprising a frame and two vertical rotors which are rotatably mounted in the frame. The water drive engine is mounted in a stream of water. If desired the engine may be mounted in a low dam. The blades of the vertical rotors overlap. A water diverter is centrally mounted in front of the rotors so as to divide the stream of water and divert the water onto the outer blades of the rotors. The water diversion produced contradirectional rotation of the rotors, i.e., one rotor rotates clockwise and the remaining rotor rotates counterclockwise. The contradirectional rotating rotors are mechanically joined to an energy system and to each other so as to be substantially self-timing and torque-free.
    Type: Grant
    Filed: June 30, 1978
    Date of Patent: May 20, 1980
    Inventor: Glen A. Williamson
  • Patent number: 4163904
    Abstract: An understream turbine plant is provided for generating electrical power by means of the flow of an understream effluent, such as the Gulf Stream off the Atlantic seaboard coast. Each turbine plant has a large central opening within which is mounted a large turbine impeller. An electrical generator is mounted within the watertight housing of the plant adjacent to the central opening. The opening of the plant has a large diametrical forward entrance and a large diametrical rearward exit with a substantially central portion of smaller diametrical extent. The impeller of the turbine plant is mounted in the smallest diametrical extent of the opening. The contour of the opening provides for a Venturi effect increasing the efficiency of plant operation. A plurality of plants may be provided to span at least a portion of the understream flow, as well as being placed in a stacked arrangement to span at least a portion of the height of the understream flow.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: August 7, 1979
    Inventor: Lawrence Skendrovic
  • Patent number: 4156580
    Abstract: The invention relates to an energy conversion system for converting kinetic energy possessed by the wind into mechanical energy, using a particular compact design for vertical axis rotors in combination with a specially adapted tower structure.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: May 29, 1979
    Inventor: Lothar L. Pohl