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  • Thumbnail for Rocker arm
    A rocker arm is a valvetrain component that typically transfers the motion of a pushrod in an overhead valve internal combustion engine to the corresponding...
    5 KB (659 words) - 12:38, 24 July 2024
  • Thumbnail for Desmodromic valve
    However, a desmodromic system must deal with the inertia of the two rocker arms per valve, so this advantage depends greatly on the skill of the designer...
    20 KB (2,482 words) - 15:14, 12 July 2024
  • Thumbnail for Overhead valve engine
    transferred using pushrods (hence the term "pushrod engine") and rocker arms to operate the valves at the top of the engine. However, some designs have the camshaft...
    13 KB (1,472 words) - 01:52, 19 June 2024
  • Thumbnail for VTEC
    pressure from a spool valve to operate a locking pin, which binds the high-RPM rocker arm to the low-RPM ones. From this point on, the valves open and close...
    31 KB (4,241 words) - 13:34, 2 June 2024
  • VVEL varies valve lift by the eccentric control shaft inside the rocker arm. By rotating the eccentric control shaft, the position of rocker arm is shifted...
    10 KB (1,350 words) - 00:02, 30 July 2023
  • Thumbnail for Rocker cover
    A rocker cover (UK), valve cover elsewhere) is a cover that encloses the rocker arm in an internal combustion engine, bolting with a gasket seal to the...
    2 KB (253 words) - 10:24, 22 May 2024
  • Thumbnail for Valvetrain
    Valvetrain (redirect from Valve train)
    the rocker arm, which opens the valve. Depending on the design used, the valves are actuated by a rocker arm, finger, or bucket tappet. Overhead valve engines...
    5 KB (544 words) - 15:51, 10 July 2024
  • Thumbnail for Solenoid valve
    action, plunger-type actuators to pivoted-armature actuators and rocker actuators. The valve can use a two-port design to regulate a flow or use a three or...
    18 KB (2,245 words) - 18:11, 31 January 2024
  • Thumbnail for Honda F engine
    locks all three rocker arms together. Both intake valves then move together on the center rocker arm cam profile which changes intake valve timing and dwell...
    26 KB (3,768 words) - 04:50, 5 July 2024
  • require regular adjusting to maintain a small clearance between the valve and its rocker or cam follower. This space prevents the parts from binding as they...
    6 KB (867 words) - 23:10, 23 May 2024
  • opening of the valves, without springs. The system consists of a mechanical lifter mechanism that uses a second rocker arm to push the valve closed. Emanuel...
    3 KB (389 words) - 17:50, 26 November 2023
  • Thumbnail for Tappet
    Tappet (redirect from Valve lifter)
    overhead valve (OHV) engines, proper clearance between the camshaft and tappet is achieved by turning a set screw in the end of the rocker arm that contacts...
    15 KB (1,861 words) - 23:06, 30 June 2024
  • Thumbnail for Variable valve timing
    Variable valve timing (VVT) is the process of altering the timing of a valve lift event in an internal combustion engine, and is often used to improve...
    29 KB (3,661 words) - 16:34, 19 April 2024
  • Thumbnail for Multi-valve
    SOHC multi-valve engines (such as the Mazda B8-ME) use a single fork-shaped rocker arm to drive two valves (generally the exhaust valves) so that fewer...
    43 KB (5,573 words) - 00:49, 24 May 2024
  • Thumbnail for Poppet valve
    leading to valve float or valve bounce. Desmodromic valves use a second rocker arm to mechanically close the valves (instead of using valve springs) and...
    18 KB (2,090 words) - 09:10, 25 March 2024
  • Thumbnail for Honda VTX Series
    with cooling fan; cylinder heads with two intake valves and a single, larger, exhaust valve; rocker arms with screw-and-locknut clearance adjusters; electronic...
    45 KB (3,750 words) - 02:49, 10 April 2024
  • Thumbnail for VVT-i
    VVT-i (category Variable valve timing)
    Each valve pair is controlled by one rocker arm, which is operated by the camshaft. Each rocker arm has a slipper follower mounted to the rocker arm with...
    12 KB (1,456 words) - 18:40, 31 July 2024
  • Thumbnail for Sleeve valve
    The sleeve valve is a type of valve mechanism for piston engines, distinct from the usual poppet valve. Sleeve valve engines saw use in a number of pre–World...
    42 KB (5,940 words) - 12:57, 28 January 2024
  • Thumbnail for Flathead engine
    Flathead engine (redirect from Side valve)
    for further valvetrain components such as lengthy pushrods, rocker arms, overhead valves or overhead camshafts. The sidevalves are typically adjacent...
    16 KB (1,873 words) - 04:56, 1 August 2024
  • control unit, the valve rocker arm switches between high-lift and low-lift profiles on the camshaft, actuated by an oil control valve through a two-feed...
    55 KB (3,688 words) - 17:37, 30 June 2024
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