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Thread: Material Utilization and Parts Use Flowchart

  1. #1
    Join Date
    Dec 2008
    Posts
    1

    Default Material Utilization and Parts Use Flowchart

    This is a follow up to our thread:
    http://forums.usfirst.org/showthread.php?t=11421

    What is the official First definition of an 'electric solenoid'?

    According to all our research and industry standards an
    'electric solenoid' is a coil of wire that when energize
    with electricity, a linear motion is created to a iron or
    steel 'slug' causing a mechanical 'action'. Examples are
    electric solenoid valves, exactly what the pneumatic valves
    are that First provides in the KOP that utilize a coil to
    cause a metal shaft to move producing the mechanical effect
    of controlling airflow. An electric solenoid when energize
    causes a metal pin to move to mechanical 'lock' pieces together.
    A hard disk drive uses an electric solenoid that when energized,
    moves a metal frame holding the 'head'. An eletric magnetic
    field is produced with the design to cause MOVEMENT, linear
    motion, mechanical movement to produce an effect.

    This device consists of an electric coil that is as close as
    possible to what is called a 'control ring'. When the coil
    is electrically energized, there is no motion, no linear motion,
    no mechanical motion. There is no pin that is moved to 'LOCK'
    any pieces together. This device consists of no moving parts.

    An example of an electric clutch that when energized, causes
    a MOTION of a pin to cause a mechanical movement to lock two
    pieces together would be the use of an electric solenoid.

    We are not looking for 'loopholes', but an industry standard
    definition.

  2. #2
    Join Date
    Jan 2006
    Posts
    2,777

    Default Re: Material Utilization and Parts Use Flowchart

    Rule <R52> expressly prohibits electric solenoid actuators. A clutch requires some form of actuation, or movement. An electromagnetic clutch includes an electric solenoid actuator.

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