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  2. Clutch delay valve - Wikipedia

    en.wikipedia.org/wiki/Clutch_delay_valve

    These valves have been unpopular with some drivers and are sometimes removed in favour of a conventional clutch action. [2] The BMW valve takes the form of a separate pipe fitting and is easily removed. Honda has also used clutch delay valves on some Civic models, which are integral to the clutch slave cylinder and must be dismantled in situ. [3]

  3. Valve float - Wikipedia

    en.wikipedia.org/wiki/Valve_float

    Valve float is an adverse condition which can occur at high engine speeds [1] when the poppet valves in an internal combustion engine valvetrain do not properly follow the closure phase of the cam lobe profile. This reduces engine efficiency and performance.

  4. VANOS - Wikipedia

    en.wikipedia.org/wiki/VANOS

    VANOS units on the intake and exhaust camshafts of a BMW N52 engine. VANOS is a variable valve timing system used by BMW on various automotive petrol engines since 1992. The name is an abbreviation of the German words for variable camshaft timing (German: variable Nockenwellensteuerung).

  5. Valvetronic - Wikipedia

    en.wikipedia.org/wiki/Valvetronic

    Valvetronic system of the BMW N52 engine. The Valvetronic system is a BMW variable valve lift system [1] which, in combination with VANOS, allows infinite adjustment of the intake valve timing and lift. [2] [3] The system claims to improve fuel economy and emissions, and negates the need for a throttle body in regular use. [4]

  6. Viessmann - Wikipedia

    en.wikipedia.org/wiki/Viessmann

    Viessmann headquarters in Allendorf (Eder), Germany. The Viessmann Group is a German manufacturer of heating and refrigeration systems headquartered in Allendorf (Eder), Germany. With 22 production companies in 12 countries, distribution companies and representative offices in 74 countries and 120 sales offices throughout the world, Viessmann ...

  7. Swirl flap - Wikipedia

    en.wikipedia.org/wiki/Swirl_flap

    Swirl flap principle in a four-valve engine. A swirl flap is a small butterfly valve fitted to four-stroke internal combustion engines with at least two intake valves.It is installed inside or just before one of a cylinder's two intake ports, allowing to throttle its intake port's air flow, causing a swirl in the other intake port not fitted with a swirl flap.

  8. Wiesmann GmbH - Wikipedia

    en.wikipedia.org/wiki/Wiesmann_GmbH

    Wiesmann MF30. The Wiesmann MF30 is the first Wiesmann model ever built, with cars entering production in 1993. [18]The MF30 is powered by a six-cylinder M54B30 engine borrowed from BMW, with a capacity of 2979 cm 3 and a power output of 170 kW (228 hp; 231 PS) at 5,900 rpm and 300 N⋅m (221 ft⋅lbf) of torque at 3,400 rpm.

  9. Poppet valve - Wikipedia

    en.wikipedia.org/wiki/Poppet_valve

    The word poppet shares etymology with "puppet": it is from the Middle English popet ("youth" or "doll"), from Middle French poupette, which is a diminutive of poupée.The use of the word poppet to describe a valve comes from the same word applied to marionettes, which, like the poppet valve, move bodily in response to remote motion transmitted linearly.

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