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  2. Solenoid (engineering) - Wikipedia

    en.wikipedia.org/wiki/Solenoid_(engineering)

    The push type has a push-pin projecting out of the solenoid to push the load away from the solenoid. Magnetically they are the same; i.e., internally the magnetic field attracts the plunger toward the stator pole piece. Most solenoids do not use magnetic repulsion between the magnetic pole and plunger to do the pushing except in rare instances.

  3. Starter solenoid - Wikipedia

    en.wikipedia.org/wiki/Starter_solenoid

    The starter motor is a series, compound, or permanent magnet type electric motor with a solenoid and solenoid operated switch mounted on it. When low-current power from the starting battery is applied to the starter solenoid, usually through a key-operated switch, the solenoid closes high-current contacts for the starter motor and it starts to ...

  4. Solenoid - Wikipedia

    en.wikipedia.org/wiki/Solenoid

    For the case in which the radius is much larger than the length of the solenoid (), the magnetic flux density through the centre of the solenoid (in the z direction, parallel to the solenoid's length, where the coil is centered at z=0) can be estimated as the flux density of a single circular conductor loop:

  5. Solenoid valve - Wikipedia

    en.wikipedia.org/wiki/Solenoid_valve

    A solenoid valve is an electromechanically operated valve. Solenoid valves differ in the characteristics of the electric current they use, the strength of the magnetic field they generate, the mechanism they use to regulate the fluid , and the type and characteristics of fluid they control.

  6. MultiAir - Wikipedia

    en.wikipedia.org/wiki/MultiAir

    The solenoid valve regulates the amount of oil pumped by the cam action to either the valve or a bypass reservoir. When pressurized, the hydraulic line behaves like a solid body and transmits the lift schedule imparted by the intake cam directly to the intake valve. When the solenoid is disengaged, a spring takes over valve actuation duties.

  7. Shutdown valve - Wikipedia

    en.wikipedia.org/wiki/Shutdown_valve

    In a solenoid-operated safety shutoff valve, a spring action closes the valve instantly when an electric current fails and the solenoid ceases to be energized. The solenoid circuit is generally arranged so that it is broken upon failure of any element of the system. This valve cannot be re-opened until the solenoid is again energized.

  8. Variable force solenoid - Wikipedia

    en.wikipedia.org/wiki/Variable_force_solenoid

    A variable force solenoid (VFS) is an electro-hydraulic device that controls pressure proportionally or inversely proportionally to a signal (voltage or current) obtained from the on-board controller of a powertrain. A low flow VFS is used as a signal level devices for transmission line pressure control or application of clutches.

  9. Transmission solenoid - Wikipedia

    en.wikipedia.org/wiki/Transmission_solenoid

    A transmission solenoid or cylinoid is an electro-hydraulic valve that controls fluid flow into and throughout an automatic transmission. Solenoids can be normally open or normally closed. They operate via a voltage or current supplied by the transmission computer or controller.