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  2. File:SR71 J58 Engine Airflow Patterns.svg - Wikipedia

    en.wikipedia.org/wiki/File:SR71_J58_Engine...

    Date/Time Thumbnail Dimensions User Comment; current: 04:53, 31 January 2009: 850 × 1,050 (616 KB): Inductiveload {{Information |Description={{en|1=A diagram showing the airflow patterns in the en:Pratt & Whitney J58 engine of the en:SR71 Blackbird as the speed increases from zero to Mach 3.2.

  3. Idle air control actuator - Wikipedia

    en.wikipedia.org/wiki/Idle_air_control_actuator

    The result is an engine that fails to maintain idle RPM and frequently stalls. A jammed actuator may be freed simply by cleaning it. However an actuator that has stopped working due to a fault in its servomotor will need replacement. Air leaks in either the stepper housing or pipes will cause elevated idle RPM.

  4. Category:Actuators - Wikipedia

    en.wikipedia.org/wiki/Category:Actuators

    This page was last edited on 17 December 2021, at 13:05 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  5. Pneumatic actuator - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_actuator

    valve with pneumatic diaphragm actuator and "smart" positioner which will also feed back to the controller the actual valve position Pneumatic rack and pinion actuators for valve controls of water pipes. A pneumatic actuator mainly consists of a piston or a diaphragm which develops the motive power. It keeps the air in the upper portion of the ...

  6. Air-operated valve - Wikipedia

    en.wikipedia.org/wiki/Air-operated_valve

    Modulating control valves each with 4-20mA I to P converter linked to pneumatic a valve positioner controlling a diaphragm actuator. An air-operated valve, also known as a pneumatic valve, is a type of power-operated pipe valve that uses air pressure to perform a function similar to a solenoid.

  7. Components of jet engines - Wikipedia

    en.wikipedia.org/wiki/Components_of_jet_engines

    Depending on the airflow characteristics of the engine, it may be desirable to lower the ramp angle or move the cone rearwards to refocus the shockwaves onto the cowl lip to maximise intake airflow. c) are designed to have a normal shock in the ducting downstream of intake lip, so that the flow at compressor/fan entry is always subsonic.

  8. Pneumatic cylinder - Wikipedia

    en.wikipedia.org/wiki/Pneumatic_cylinder

    Operation diagram of a double acting cylinder 3D-animated pneumatic cylinder Schematic symbol for pneumatic cylinder with spring return Pneumatic cylinder , also known as air cylinder , is a mechanical device which uses the power of compressed gas to produce a force in a reciprocating linear motion.

  9. Valve actuator - Wikipedia

    en.wikipedia.org/wiki/Valve_actuator

    The blue valve body is visible in-line with the pipe. The valve actuator opens or closes the butterfly disc of the valve based on electrical signals sent to the actuator. Another valve actuator is visible in the background, with windows to indicate the valve position. A valve actuator is the mechanism for opening and closing a valve. Manually ...