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  • Laboratory Testing of the Boundary Layer Momentum Transfer Rotational Filter Systems, NETL-Innovatech, Inc., CRADA 98-F026, Final Report
    The following modifications were made in the ambient-temperature prototype design : (a) the materials of construction was changed from aluminum to Hastelloy, (b) a non-contacting labyrinth seal was used to separate filtered from unfiltered gas, bridging... ...the particle collection plenum, and (e) the actively cooled electric drive motor was placed within the...
  • Industrial Gases Processing
    Numerous technical detail solutions have contributed to the reliability and long lifetime of turbo compressors, i.e.: Non-contact seals designed as labyrinth seals or “Carbon Ring Seals�?. A special starting system in case of an electric motor drive enables a quick compressor start within about one minute such that the voltage drop in the supplying net does not get larger than the admissible value of 2–15%.
  • Current trends in the development of designs of submersible pumps for water
    In recent years, the amount of work on design of well pumps with submersible electric motors in- tended for pumping corrosive waters containing from 0.01 to 0.1% mechanical impurities by weight has been significantly expanded. The main problem in designing these pumps consisted in developing optimal designs of the following subunits: bearings, slotted impeller seals , interstage labyrinths in the blade bends, and reverse valves.
  • Production of new equipment
    The pump (Fig. 4) consists of a cylinder assembly 1, two stage cylindrical reducing craskshaft- connecting rod assembly (not shown on the drawing), and electric motor 3. It is a horizontal single stage, single acting plunger pump of crosshead design with automatic valves and labyrinth plunger seals .
  • WEG Offers New Petroduty API-Designated Motor Designs
    These features include sealed VPI insulation systems, IEC and NEMA designs with cast-iron or fabricated-steel frame material, IP-55 protection ratings, anti-friction sleeve bearings, taconite labyrinth seals , Resistance Temperature Devices (RTDs), and stainless-steel hardware. SOURCE: WEG Electric Motors Corporation .
  • WEG Offers New Petroduty API-Designated Motor Designs
    These features include sealed VPI insulation systems, IEC and NEMA designs with cast-iron or fabricated-steel frame material, IP-55 protection ratings, anti-friction sleeve bearings, taconite labyrinth seals , Resistance Temperature Devices (RTDs), and stainless-steel hardware. SOURCE: WEG Electric Motors Corporation .
  • Increasing the Efficiency of Refrigerating Centrifugal Compressors with a Refrigerating Capacity of Less than 100 kW
    This and the advantages of the compressor design confirm the advisability of applying the recommendations in refrigeration... ...how cooling systems and the total HED losses, the gas-dynamic characteristics of the stages, and the characteristics of the gas-dynamic bearings (GDB), and the electric motors have on the energy... ...and end clearances of labyrinth seals and taking the largest...
  • A Practical Guide to Compressor Technology 2nd Edition
    gas turbine, or expander turbine, as well as by an electric motor with gears or with variablespeed drivers. ...the selection of the materials for the casing, impellers, and other components, the design is extremely flexible. As will be seen later, labyrinth seals , mechanical contact seals, floating seals, or dry gas seals can be provided for shaft sealing.
  • Flow machines
    ...machine 3, 32-heat-coupling 98, 168, werksdampfturbine 95 circular arc blade 210, 256 centrifugal pump 22 cycle 16, of steam power plants 81-of gas turbines 162 cooling 162, 172, 183 Kupplungswirkungsgrad 23, 146, 202 labyrinth sealing 59, 147, 172, 201... Jacket current fan 191 mass flow 5 mechanical loss 146 - efficiency 146 More |... ...gases 169 average meridian streamline 213-temperature of the heat supply 82 model | of laws 33-attempt 61... ...coupling 284-conversion 290 motor drückung 284 shell diagram...
  • http://dspace.mit.edu/bitstream/handle/1721.1/88876/48839211.pdf?sequence=1
    After the first successful hot fire test, the Teflon holder for the labyrinth seal was damaged and the labyrinth was replaced with a better-supported design that did not rub as much. From the motor power curves it was clear that the engine took less and less power to... Power curve One of the functions I came up with for the electric motor was the taking...
  • Machine tools construction and calculation
    Bellows 115, 489 catch labyrinth - sealings 158, 455 catch bearings 668, 356 coloring, fiber composite optimization, fairy-analysis, fairy- model , 115 spring-damper-element, 174 spring video tape spiral 376, 491 spring characteristics, 375, 383 spring, 374, 379 spring coefficient Ground fault interrupter, 667 Feldorientierte control, 512 field weakening region, 511 field adjustment, 497 production storage game 613, 378... ...surface model, 125 moment of inertia of an area, 19 surface ratio, 297 flange shape, 40 wing cell motor , 533 liquids Newtonsche 223...
  • [Advertisements]
    DESIGNED ESPECIALLY FOR ELECTRIC MOTORS , THE N O R M A - H O F F M A N N " C A R T R I D G E " SELF- SEALED BEARING HAS THE EMPLOYS AN ENTIRELY NEW LABYRINTH SEAL WHICH IS EQUALLY EFFICIENT IN A HORIZONTAL OR VERTICAL POSITION.
  • Leaktight seal in agitator devices
    This seal design is distinguished by the absence of any stuffing box, labyrinth seal , or flanged seal on the shaft. The shaft is rotated by an electric motor 11 via a reducing gear box 10, a coupling 9, and bail bearing 8 fitted eccentrically with respect to the rotation axis of the coupling into a recess on the coupling disk, and the...
  • Compressors and Modern Process Applications
    ...Dual-circuit oil-flooded machines, 29 Dynamic compressor, 39 Dynamic stability, 49 Ecoteg, 160 EDC via oxygen lean oxychlorination, 286 Eff iciency, 14, 15 Eff iciency versus flow coefficient, 97 Electric power generator., 136 Electrical... ...35, 37 Filtration, of sealing gas, 73 ...flow characteristics, 108 Heat exchanger, 7 Helical screw compressors, 21 HERA, 202 Hermetically sealed motor compressor, 86 High-exponent gas, 15 High-frequency oil whip, 56 High-pressure centrifugal compressors, 117 High-pressure geared centrifugal compressor, 118 High-speed compressors, 115 Honeycomb designs , 56 Horizontally split compressors, 42... ...Impeller characteristic, 100 Impeller-eye labyrinths , 55 Impeller-tip speed...