The chapter presents the main principle on which the proposals of this book
are based. In this principle, the energetic efficiency of pneumatic actuators is strongly
increased by adding an amount of expansion work to the classical work produced by
constant pressure displacement. Such a principle has already been applied in steam
machines at the beginning of the 20th century or in existing pneumatic converters used
as motors for automotive vehicles.
Keywords: Constant Pressure Displacement Work, Expansion Work, The Truglia Motor, Compressed Air Car.
