Jacob J Smith

US Patent:

20200191168, Jun 18, 2020

Filed:

Dec 16, 2019

Appl. No.:

16/716434

Inventors:

Robert J. Kosmicki - Papillion NE, US
Perry D. Smith - Logan IA, US
Jacob B. Smith - Plattsmouth NE, US
Julianne S. Smith - Plattsmouth NE, US

International Classification:

F04D 29/66
F04D 17/16
F04D 5/00
F04D 29/28

Abstract:

The present invention relates in general to the field of fluid reaction surfaces, and more specifically, to a fluid-foil impeller and method of use. One aspect of the fluid-foil impeller utilizes a plurality of fluid-foil discs that may be of uniform and/or variable thickness and configured to rotate rapidly in series to produce propulsion. Each fluid-foil disc comprises a leading edge, a trailing edge, a chord and a fixed pitch. The fluid-foil impeller may further include a standard or Venturi shroud that is designed to encompass the plurality of fluid-foil discs. The plurality of fluid-foil discs are configured to act in cooperation with the shroud to reduce losses incurred from turbulence and the conversion of mechanical work to fluid movement. Fluid may be acted upon by the plurality of fluid-foil discs and/or shroud, singly or in an array. A purpose of the invention is to provide a fluid-foil impeller and method of use that reduces harmful cavitation effects typically encountered by traditional propeller blades when operating at high revolutions per minute. An additional purpose of the invention is to provide a fluid-foil impeller that may be used efficiently and safely in a variety of industrial applications that requires successful propulsion a fluid.