Rotary kinetic fluid motors or pumps – Smooth runner surface for working fluid frictional contact
Patent
1978-05-17
1980-08-19
Casaregola, Louis J.
Rotary kinetic fluid motors or pumps
Smooth runner surface for working fluid frictional contact
415201, 415202, F01D 136
Patent
active
042181763
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.
When the apparatus is used as a turbine, fluid, air or steam is injected into the peripheral zone through pitot-like flow paths, flows in an inwardly spiraling path, thus causing rotation of the discs and shaft, and the fluid then exits the housing from the central port.
The pitot-like flow paths have a cross-sectional area which does not exeed about 60 percent of the corresponding cross-sectional area of the peripheral zone. In one embodiment the pitot-like flow paths are bored in a pitot block which in turn is removably secured to the housing. The removable pitot block offers the versatility of changeable head (pressure) and flow characteristics.
REFERENCES:
patent: 1346292 (1920-07-01), Becklund
patent: 1402053 (1922-01-01), Dake
patent: 1429570 (1922-09-01), Dake
patent: 4025225 (1977-05-01), Durant
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