Tag: Valve related

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  • Blowoff dump valve

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    Blowoff dump valve

    Blowoff dump valve A blowoff valve (BOV) or dump valve is a pressure release system present in most turbocharged engines. Its purpose is to prevent compressor surge, and reduce ...

  • Butterfly valve types

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    Butterfly valve types

    Butterfly valve types A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to ...

  • Crankcase ventilation & PCV valve

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    Crankcase ventilation & PCV valve

    Engine Crankcase ventilation system & (PCV) valve Car pcv valve A crankcase ventilation system is a way for gases to escape in a controlled manner from the crankcase of an ...

  • Desmodromic Valve

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    Desmodromic Valve

    Desmodromic valve A desmodromic valve is a reciprocating engine valve that is positively closed by a cam and leverage system, rather than by a more conventional spring. The ...

  • Exhaust manifold Checking hot-spot valve

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    Exhaust manifold Checking hot-spot valve

    Checking the operation of the hot-spot valve Guide to checking the operation of the hot-spot valve between inlet and exhaust manifold. Some older car may have a hot-spot valve ...

  • Overhead valve (OHV)

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    Overhead valve (OHV)

    Overhead valve (OHV) Oldsmobile Rocket V8 engine An overhead (OHV) engine, also informally called pushrod engine or I-head engine, is a type of piston engine that places the ...

  • Pneumatic valve springs

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    Pneumatic valve springs

    Pneumatic valve springs Pneumatic valve springs are metal bellows filled with compressed air used as an alternative to the metal wire springs used to close valves in high-speed ...

  • Schrader valve

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    Schrader valve

    Car Tyre Schrader valve Explained The Schrader valve (also called American valve)is a brand of pneumatic tyre valve used on virtually every motor vehicle in the world today. The ...

  • Valve (Poppet)

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    Valve (Poppet)

    Engine Poppet valve A poppet valve (also called mushroom valve) is a valve typically used to control the timing and quantity of gas or vapour flow into an engine. It consists of ...

  • Valve Multi

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    Valve Multi

    Engine Multi-valve History In automotive engineering a multi-valve or multivalve engine is one where each cylinder has more than two valves. A multi-valve engine has better ...

  • Valve Needle

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    Valve Needle

    Needle Valve A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only ...

  • Valve stem types

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    Valve stem types

    Wheel Valve stem types A valve stem is a self-contained valve which opens to admit gas to a chamber (such as air to inflate a tire), and is then automatically closed and kept ...

  • Valve timing

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    Valve timing

    Engine Valve timing In a piston engine, the valve timing is the precise timing of the opening and closing of the valves. In four-stroke cycle engines and some two-stroke cycle ...

  • Valve vacuum delay

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    Valve vacuum delay

    Vacuum delay valve A vacuum delay valve is a valve with a small orifice, which delays a vacuum signal. These are commonly used in automobiles to alter the behavior of vacuum ...

  • Valve Variable lift

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    Valve Variable lift

    Variable valve lift Variable valve lift is a technology which is increasingly used in automotive piston engines. It varies the height that a valve opens, in order to improve ...

  • Valvetrain

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    Valvetrain

    Engine Valve train A valve train or valvetrain is a device that controls the operation of the valves.,in which a sequence of components transmits motion throughout the assembly. ...

  • Variable valve timing (VVT)

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    Variable valve timing (VVT)

    Engine Variable valve timing In internal combustion engines, Variable valve timing (VVT), also known as Variable valve actuation (VVA), is any mechanism or method that can alter ...