Abstract: An improved fluid propulsion apparatus of the type which includes a housing, a plurality of spaced apart discs rotatably mounted on a shaft and positioned within the housing, and a plurality of fluid inlet and outlet ports all in communication with the interior of the housing. The housing includes a circumferential peripheral zone defined as the region between the interior of the housing and the periphery of the discs. The apparatus may be utilized as a pump or as a turbine. During operation as a pump, the shaft and discs are rotated and fluid is introduced into the housing at a port at the center of the housing, flows in an outwardly spiralling path between the discs within the housing, and flows into the peripheral zone from where it is removed through one of several ports at the periphery of the housing. The ports at the periphery of the housing are positioned such that the apparatus may be utilized as a pump with the discs and shaft rotated in either a clockwise or a counter-clockwise direction.

Abstract: An improved fluid propulsion apparatus of the type including a housing and a plurality of spaced apart discs rotatably mounted on a shaft and positioned within the housing. The housing includes a circumferential peripheral zone, defined as the region between the interior of the housing and the periphery of the discs, and further includes inlet and outlet ports each in communication with the interior of the housing. The apparatus may be utilized as a liquid pump, liquid ring pump, vacuum pump, air compressor or blower, mixer or blender, and as a turbine. During operation as a pump, the shaft and discs are rotated within the housing and fluid enters the port at a center port of the housing, flows in an outwardly spiraling path between the discs within the housing, and continues to flow into the peripheral zone from which it is removed through a port or ports at the periphery of the housing, such as through a pitot-like fluid flow path.