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  2. Engine displacement - Wikipedia

    en.wikipedia.org/wiki/Engine_displacement

    Engine displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. [1] It is commonly used as an expression of an engine's size, and by extension as an indicator of the power (through mean effective pressure and rotational speed ) an engine might be capable of producing ...

  3. Piston motion equations - Wikipedia

    en.wikipedia.org/wiki/Piston_motion_equations

    The reciprocating motion of a non-offset piston connected to a rotating crank through a connecting rod (as would be found in internal combustion engines) can be expressed by equations of motion. This article shows how these equations of motion can be derived using calculus as functions of angle ( angle domain ) and of time ( time domain ) .

  4. Bore (engine) - Wikipedia

    en.wikipedia.org/wiki/Bore_(engine)

    Engine displacement is calculated based on bore, stroke length and the number of cylinders: [1] displacement = π ( ⁠ 1 / 2 ⁠ × bore ) 2 × stroke × n cylinders. The stroke ratio, determined by dividing the bore by the stroke, traditionally indicated whether an engine was designed for power at high engine speeds or torque at lower engine ...

  5. Reciprocating engine - Wikipedia

    en.wikipedia.org/wiki/Reciprocating_engine

    For piston engines, an engine's capacity is the engine displacement, in other words the volume swept by all the pistons of an engine in a single movement. It is generally measured in litres (l) or cubic inches (c.i.d., cu in, or in 3 ) for larger engines, and cubic centimetres (abbreviated cc) for smaller engines.

  6. Mean effective pressure - Wikipedia

    en.wikipedia.org/wiki/Mean_effective_pressure

    Mean effective pressure is also useful for initial design calculations; that is, given a torque, standard MEP values can be used to estimate the required engine displacement. However, mean effective pressure does not reflect the actual pressures inside an individual combustion chamber – although the two are certainly related – and serves ...

  7. Template:Pistonspecs - Wikipedia

    en.wikipedia.org/wiki/Template:Pistonspecs

    type = Engine in a nutshell, #-cylinder turbo/supercharged air/liquid-cooled inline/rotary/V-# piston aircraft engine; designer = Who; bore = Diameter of each cylinder, in (mm) stroke = Distance the piston travels inside the cylinder, in (mm) displacement = Total volume of the engine, in³ (L) length = Length of the engine, in (mm)

  8. Compression ratio - Wikipedia

    en.wikipedia.org/wiki/Compression_ratio

    In piston engines, static compression ratio is determined using the cylinder volume when the piston is at the top and bottom of its travel. The compression ratio is the ratio between the maximum and minimum volume during the compression stage of the power cycle in a piston or Wankel engine .

  9. Stroke ratio - Wikipedia

    en.wikipedia.org/wiki/Stroke_ratio

    An engine is described as undersquare or long-stroke if its cylinders have a smaller bore (width, diameter) than its stroke (length of piston travel) - giving a ratio value of less than 1:1. At a given engine speed, a longer stroke increases engine friction and increases stress on the crankshaft due to the higher peak piston acceleration.