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  • Improving Reciprocating Compressor Valve Life
    Compressor valves serves as check valves for the inlet and discharge passages of the cylinder and will open and close once for every revolution of the crankshaft. If the compressor is running at 500 rpm for 24 hours a day, the valves will open and close 720,000 times every day! Valves have
  • Getting torque-to-inertia right
    provides commutation and speed feedback for the drive controller. Crankshafts in running internal-combustion engines pulsate as well as rotate. This pulsation creates both primary and harmonic torsional stress on crankshaft-driven equipment such as superchargers, pumps, alternators, counterbalancers
  • F-150 Pickup Gets a New Heart
    the VCT mechanism. The 5.4-liter V8 features three valves per cylinder with a central spark plug. The pistons have longer skirt sides for quiet operation. A slide-out air filter gives easy access for maintenance. Using two intake valves helps fuel-air mixing prior to combustion, improving power delivery

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