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  • Oceanic probes float free -- thanks to a brush-dc motor
    possible time. Optimare Sensorsysteme AG, the German manufacturer of the Nemo floats, uses a hydraulic bladder filled with oil in place of the gas bladder. An oil-filled piston acts as reservoir and pump to drive oil into the bladder at the bottom of the probe. The oil expands the bladder, displacing
  • Oil Monitoring in Trans-Border River Uh Between Ukraine and Slovakia
    The Problem: Long-term contamination of Uh river by waste motor oil, aircraft fuel, etc., being by-products of Russian army bases on Ukrainian part of the border. Slocakia needed to protect its rivers from this pollution by early oil warning systems on Uh river, since it flows into other rivers
  • Applying Inverters to Centrifugal Compressors in HVAC Chillers (.pdf)
    When applying an inverter to centrifugal compressors on HVAC chillers, there are a number of factors to consider. For some compressors, lubricating oil circulation may be driven by the rotation of the compressor shaft itself, via a gear-driven pump arrangement. If you slow the motor speed
  • Accumulators Deliver New Payoffs
    size by 25%. In turn, the diesel engine driving the hydraulic system can be 25% smaller, and resulting fuel cost savings can be as high as 30 to 35%. The same techniques are being used in oil fields where hydraulic power units drive single-acting cylinders that pump oil from wells. The pump
  • Medical Device Link .
    Unlike piston pumps, miniature diaphragm pumps do not require lubricants in the pump 's stroking mechanism. On a similar note, rotary-vane pumps are prone to the vanes wearing and spewing debris in the flow path. By contrast, miniature diaphragm vacuum pumps and compressors provide an oil
  • Sorting out servopneumatics
    from hydraulic and lubricating oil in food processing and clean-room operations. Electric drives can cost from several hundred to thousands of dollars, depending on motor size, sophistication of the controller, and nature of the mechanical components. Pneumatic systems are often half the cost
  • Tough Coatings
    years. These coatings protect highly stressed components that see sliding or rolling contact. They handle a range of applications in motor-sport, fluid power, medical, and aerospace including engine, transmission, pump, motor, and bearing components. The bulk material provides different properties than
  • Runnin' full throttle
    predecessor, the Oldsmobile IRL Aurora V8, but is significantly upgraded to better fit the League rules, explains Roger Allen, lead engine designer for GM Racing's Chevrolet IRL program. Carrying over only the oil and water-pump assemblies, the all-new design is smaller, lighter, and has a lower center

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