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  • Motion Control Drives Infusion Pump
    The human body can be as much as 85% water. Small wonder, then, that one of the first lines of treatment for trauma patients like wounded soldiers is controlled fluid replacement, often at high volumes. The problem is that conventional infusion pumps are typically designed to deliver small amounts
  • Electricity Can Pump Medicine in Implanted Medical Devices
    for delivering drugs inside the body, researchers have had difficulty pumping fluid through the tiny passages that would have to be constructed inside such devices, explained , professor of mechanical engineering at Ohio State. , Conlisk and his colleagues report that a very small amount
  • Medical Device Link .
    Micropump Dispenses Low Volumes in Instrumentation Applications A miniature self-priming fluid-dispensing pump designed to serve as a compact and reliable component in scientific and electronic instrumentation is available from Bio-Chem Valve Inc. The fixed-displacement diaphragm pump provides
  • Hydraulic Pumps
    The power source is the key element in a fluid-power system. In a pneumatic system the power source is an air compressor, while in fluid-power systems it is a pump. These normally are driven by an electric motor or internal combustion engine. Various concepts are applied to convert the mechanical
  • Compressors
    The main difference between pumps and compressors is that the fluid delivered by compressors -- air -- is compressed and under pressure at the time it is delivered, even if there is no load on the system. Most devices used to compress air are very similar in concept and -- perhaps even in hardware
  • Sizing up flow forces
    are the result of fluid mass accelerating through the small opening between spool and sleeve. The axial force component is useful for sizing coils and springs. represents the maximum flow force. Test circuit shows the valve in a transient position. This simple test circuit includes
  • Medical Device Link .
    large and costly systems into portable, cost-efficient ones. The basic goal is to incorporate components that have the same or better performance into a smaller package size while improving reliability and operational life. The Pump Challenge: Performance and Size Goals Traditionally, techniques
  • Hydraulics shines in touchless car wash
    to run the gantry faster without a larger motor. For the redesign, JHF recommended a 7.5-hp electric motor powering a 6.5-gpm gear pump from , Industrial Hydraulics Div., Bethlehem, Pa. ( ), and a simpler two-station manifold to replace the three-station design. A small custom block on the first

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