Rotary displacement steam engine

Abstract

A steam engine of a simple constitution capable of efficiently obtaining mechanical energy not only from a heat source of a high temperature but also from various heat sources in a low-temperature state such as the exhaust heat of an internal combustion engine. The engine comprises a displacement enginehaving a rotorthat rotates, a steam-generating portionarranged thereunder and a condenserarranged thereover. Water heated in the steam-generating portionbecomes the steam which is fed into the displacement engine, enters into an operation chamber that moves up, rotates the rotorand is, thereafter, fed into the condenserwhere it is condensed to turn into the condensate. The condensate falls on the rotoron the lower side due to gravity, and is refluxed into the steam-generating portionthrough the operation chamber that moves downward with rotation of the rotor. The steam engine efficiently operates even at low speeds, requires no pump for refluxing the condensate, and is constituted in a compact size.