Abstract: Briefly, an engine is provided that has a cavity constructed to enable a working liquid to be vaporized upon contact with a hot liquid. As the working liquid is vaporized, the liquid rapidly expands into a vigorous gas. The ensuing rise in pressure causes a moving member to be moved, thereby converting the explosive rise in pressure within the cavity into useful work. In one embodiment, the engine is a piston engine that allows a hot liquid oil to be injected into a piston cavity. Water is then injected, which immediately flashes into steam as the water hits the hot oil. The steam causes the pressure to dramatically rise in the piston cavity, thereby driving the piston.

Abstract: A power turbine is provided in the form of a set of plates that cooperate to form a housing, with a set of spaced apart disks mounted on a shaft within the housing. Some of the plates and disks cooperate to allow gas or steam to be injected to provide a driving force on the shaft, while others of the disks and plates cooperate to form one or more integral pumps. The pumps are used to pull cooling liquid or water into the housing, and to cool the driving disks. In this way, the steam that drives the disks is condensed while still in the housing, with a water level maintained on the driving disks. In operation, the steam directly acts on the disks toward the outer circumference of the disks, but more toward the center of the disk, the steam transfers its energy to the water, and the water transfers the energy to the disk.