WHEN evaluating engine efficiencies, mean effective pressures or the work done by the piston in internal combustion engines or compressors, it is generally assumed that the state of the working fluid is uniform throughout its mass. From this it follows that the expression for work where P denotes pressure and V, volume, holds. Now, it is known that, strictly speaking, this expression applies only in the limiting case of zero piston velocity, when the motion of the piston, and the thermodynamic process in the cylinder are said to be quasi-static. The question, therefore, poses itself as to how far such an assumption is justified, when applied to a modern high-speed reciprocating engine, say, an aircraft or motorcar engine, when piston velocities of the order of 40 ft./sec. are encountered.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Piston Velocities and Piston Work


    Subtitle :

    The Influence of High Piston Velocities on the Pressure Distribution and Piston Work in Engine Cylinders


    Contributors:
    Glass, J.S. (author) / Kestin, J. (author)

    Published in:

    Publication date :

    1950-06-01


    Size :

    3 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Piston and piston-ring temperatures

    Keyser, Jr., P.V. / Miller, E.F. | Engineering Index Backfile | 1940


    PISTON AND PISTON ROD ASSEMBLY MANUFACTURING METHOD

    NIEUWENHUIS MARCEL GERARDUS MARIA | European Patent Office | 2022

    Free access

    PISTON AND PISTON ROD ASSEMBLY MANUFACTURING METHOD

    NIEUWENHUIS MARCEL GERARDUS MARIA | European Patent Office | 2019

    Free access

    PISTON AND PISTON ROD ASSEMBLY MANUFACTURING METHOD

    NIEUWENHUIS MARCEL GERARDUS MARIA | European Patent Office | 2020

    Free access

    German piston and piston ring industry

    Fisher, G. | TIBKAT | 1946