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| Number | Title | Issue Date |
| 7267328 | Aeration of wastewater ponds using airlift pumps The subject of this invention is a submerged airlift pump using multiple concentric pipes with diameters that increase as they near the water surface. Water initially accelerated into the lowest pipe section is progressively decelerated in subsequent pipe sections, ... | 09/11/2007 |
| 6276140 | Device to generate energy through a turbo engine An apparatus for the generation of energy by means of a fluid-flow machine is described, for the drive of which a compressor arrangement for compressing a compressible medium, preferably air, is provided, which medium, via a feed-line system, can be fed t... | 08/21/2001 |
| 5537813 | Gas turbine inlet air combined pressure boost and cooling method and apparatus The operational capacity and efficiency of a combustion turbine is increased by treating the turbine inlet air to increase its density. The inlet air treatment is achieved in a columnar tower with the inlet air being drawn in at the top of the tower. Trea... | 07/23/1996 |
| 5099648 | Hydraulic air compressor and turbine apparatus Hydraulic air compressor and turbine apparatus includes a hydraulic air compressor having an air intake disposed above the water intake for entraining air in falling water, and the output of the hydraulic air compressor is used as a compressed air source ... | 03/31/1992 |
| 4767938 | Fluid dynamic energy producing device A fluid dynamic device is provided which includes a fluid holding and U-shaped conduit having a first leg and a second leg, an electrical generating device positioned between and in flow communication with the first and second legs and being motivated by ... | 08/30/1988 |
| 4278405 | Energy amplifier apparatus Energy amplifier apparatus includes a pair of vertically extending concentric cylinders, with air entrained in water flowing downwardly through the inner cylinder to a separator where the air is separated from the water. The falling water compresses the e... | 07/14/1981 |
| 4265599 | Hydropneumatic energy system A system for converting a constant pressure head of water into compressed air which may be utilized to transfer the potential energy of the pressure head to remote work sites.... | 05/05/1981 |
