Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Patent
1998-02-17
1999-08-10
Ryznic, John E.
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Radial flow devices
416DIG2, 415206, B63H 126, F01D 102
Patent
active
059348771
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a rotor which is intended to induce fluid flow and/or to be influenced by fluid flow and can have relevance to pumps for inducing fluid flow and torque generators which are responsive to fluid flow such as turbines.
Generally, devices which are influenced by fluid flow in the production of torque or alternatively which can induce fluid flow utilise a rotor which is rotatably supported in a housing in order to react to, or to generate fluid flow. Such rotors in the simplest forms comprise a set of radial vanes mounted to a backing plate or a set of propeller or turbine blades supported from a shaft. The principal difficulty with previous arrangements however, has been turbulence created within the fluid flow which reduces the efficiency and in extreme circumstances, in the case of liquids, can result in cavitation, which not only reduces the operational efficiency of the pump but can result in inefficiencies and destructive influences upon the structure of the rotor and the support housing and therefore can also result in significant wear and noise.
It is an object of this invention to provide a rotor which can react to or induce fluid flow which reduces the degree of extraneous turbulence which is exerted upon the fluid in its passage past the rotor with the resultant energy loss. In order to effect this the surfaces of the rotor are intended to provide a fluid pathway which conforms generally to the curve of a logarithmic configuration substantially conforming to the Golden Section.
All fluids when moving under the forces of nature, tend to move in spirals or vortices. These spirals or vortices generally comply to a mathematical logarithmic progression known as the Golden Section or the Fibonacci Progression. The invention enables fluids to move over the surfaces of the rotor in their naturally preferred way, thereby reducing inefficiencies created through turbulence and friction which are normally found in apparatus commonly used for flow and torque generators which are responsive to fluid flow and as a result reducing the likelihood of wear.
SUMMARY OF THE INVENTION
Accordingly the invention resides in a rotor for use with a fluid flow generator or reactor, said rotor being intended to rotate about a central axis and having a surface which defines an arcuate fluid pathway for fluid flow about the central axis about which the rotor is able to rotate, wherein the surface has the configuration of a logarithmic curve substantially conforming to the Golden Section.
According to a preferred feature of the invention the curvature of the surface is transverse to the central axis.
According to a further preferred feature of the invention the curvature of the surface can be in a direction parallel to the central axis.
According to a further preferred feature of the invention the curvature of the surface is both transverse to the central axis and is parallel to the direction of the central axis to define a three dimensional surface conforming to the Golden Section.
According to a further preferred feature of the invention the fluid pathway has a spiral configuration. In particular the configuration takes the form of a helix or a volute.
According to a further preferred feature of the invention the fluid pathway comprises a duct. According to a further preferred feature of this feature the cross-sectional area of the duct varies logarithmically in substantial conformity to the Golden Section.
According to a further preferred feature of the invention the fluid pathway has the configuration conforming to the internal configuration of a shell of the phylum Mollusca, class Gastropoda or Cephalopoda. According to particular forms of the invention the surface conforms to he internal configuration of shells selected from the genera Volutidea, Argonauta, Nautilus, Conidea or Turbinidea.
According to a further preferred feature of the invention the fluid pathway has the configuration conforming to the external configuration of a shell of the phylum Mollusca, c
REFERENCES:
patent: 2165808 (1939-07-01), Murphy
patent: 3082695 (1963-03-01), Buschhorn
patent: 4540334 (1985-09-01), Stahle
Derwent Abstract Accession No. 89-157673/21, SU 1437579 A (Lengd Kalinin Poly) Nov. 15, 1988.
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