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  2. Crocker Motorcycles - Wikipedia

    en.wikipedia.org/wiki/Crocker_Motorcycles

    The Crocker Motorcycle Company is an American manufacturer, based in Los Angeles, California, founded by Albert Crocker.Located at 1346 Venice Blvd, Crocker produced a series of kits and whole motorcycles between 1931 and 1941: an overhead-valve conversion kit for the Indian 101 Scout motor (1932), a single-cylinder speedway racer (1934), powerful V-twin road motorcycles (1936–40), and the ...

  3. Idle air control actuator - Wikipedia

    en.wikipedia.org/wiki/Idle_air_control_actuator

    An idle air control actuator or idle air control valve (IAC actuator/valve) is a device commonly used in fuel-injected vehicles to control the engine's idling rotational speed . [1] In carburetted vehicles a similar device known as an idle speed control actuator is used.

  4. Centrifugal governor - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_governor

    The balls swing out as speed increases, which closes the valve, until a balance is achieved between demand and the proportional gain of the linkage and valve. A centrifugal governor is a specific type of governor with a feedback system that controls the speed of an engine by regulating the flow of fuel or working fluid , so as to maintain a ...

  5. Valve timing - Wikipedia

    en.wikipedia.org/wiki/Valve_timing

    The valve timing of a diesel engine also depends on tappet clearance of the inlet and exhaust valves. If tappet clearance is less, then valve will open early and close late. [2] If tappet clearance is more, then valve will open late and close early. Tappet clearance is measured by an instrument called feeler gauge.

  6. Desmodromic valve - Wikipedia

    en.wikipedia.org/wiki/Desmodromic_valve

    The common valve spring system is satisfactory for traditional mass-produced engines that do not rev highly and are of a design that requires low maintenance. [1] At the period of initial desmodromic development, valve springs were a major limitation on engine performance because they would break from metal fatigue.

  7. 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 ...

  8. Choke valve - Wikipedia

    en.wikipedia.org/wiki/Choke_valve

    Most choke valves in engines are butterfly valves mounted upstream of the carburetor jet to produce a higher partial vacuum, which increases the fuel draw. [ 1 ] In heavy industrial or fluid engineering contexts, including oil and gas production, a choke valve or choke is a particular design of valve with a solid cylinder placed inside another ...

  9. Poppet valve - Wikipedia

    en.wikipedia.org/wiki/Poppet_valve

    Oscillating poppet valve on one of Chapelon's rebuilt 4-6-2 locomotives. Poppet valves have been used on steam locomotives, often in conjunction with Lentz or Caprotti valve gear. British examples include: LNER Class B12; LNER Class D49; LNER Class P2; LMS Stanier Class 5 4-6-0; BR standard class 5; BR standard class 8 71000 Duke of Gloucester.