Patent ID: 8152464
Filing Date: 2012-04-10
Classification: F03B,F05B,Y02E,Y10T

Abstract:
1. A helical multi-piece auger rotatable by a moving fluid for the generation of energy comprising: an interior section having a first helical portion and a first central portion, the first helical portion configured to have (1) between approximately 15 degrees and approximately 60 degrees of angled movement with respect to a longitudinal axis of a central shaft, and (2) a first radial arc extending between approximately 45 degrees and approximately 180 degrees circumferentially around the central shaft, and the first central portion having a first cylindrical opening of a first inner diameter; an exterior section having a second helical portion and a second central portion, the second helical portion (1) having a second radial arc extending between approximately 30 degrees and approximately 90 degrees circumferentially around the central shaft and (2) tapering inward radially toward the central shaft with approximately 45 degrees of helical pitch with respect to the longitudinal axis of the central shaft, the second central portion having a second cylindrical opening of a second inner diameter; and the central shaft configured to have a cylindrical exterior having an outer diameter, the outer diameter of the central shaft being approximately equal to or less than both the first inner diameter of the first central portion and the second inner diameter of the second central portion such that the interior and exterior sections are sized to be mounted onto the central shaft, wherein the interior and exterior sections are configured to non-overlappingly interconnect with each other such that the first helical portion of the interior section and the second helical portion of the exterior section are non-overlapping and the interconnected interior and exterior sections form at least a portion of the helical multi-piece auger that is rotatable by a moving fluid to facilitate generation of energy from the rotation of the helical multi-piece auger.