초록 ▼

The disclosed portable water-powered electric generator unit has a tubular form with opposite open inlet and outlet ends defining a longitudinal flow path for the moving stream water. The tubular form defines a converging venturi terminating at a throat between the inlet and outlet ends. An electric

The disclosed portable water-powered electric generator unit has a tubular form with opposite open inlet and outlet ends defining a longitudinal flow path for the moving stream water. The tubular form defines a converging venturi terminating at a throat between the inlet and outlet ends. An electric dynamo, having a sealed housing and external driving propeller means, is supported in the flow path downsteam of the throat, with the propeller means at the throat. The inlet end is between 2-5 times larger in area than the venturi throat, to speed up the water passing through the propeller means. The tubular form and housing together define a diverging venturi downstream from the throat, decelerating the water with minimal losses before exiting from the open outlet end. The open outlet end is 1.1-1.5 times larger in area than the open inlet end, whereby the slightly faster surrounding stream water blending with the exiting water at the open outlet end may tend to accelerate the exiting water slightly for added efficiencies. A buoyancy chamber, with remotely operated valve and gas pressure means, is on the portable electric generator unit to regulate its overall buoyancy, for adjusting its operative debth of use in the stream.

대표청구항 ▼

A portable electric generator unit, adapted to be powered by flowing water as in a stream, comprising the combination of a tubular form having an inner wall with opposite open inlet and outlet ends for defining a longitudinal flow path for the water; the configuration of said inner wall, from the in

A portable electric generator unit, adapted to be powered by flowing water as in a stream, comprising the combination of a tubular form having an inner wall with opposite open inlet and outlet ends for defining a longitudinal flow path for the water; the configuration of said inner wall, from the inlet end thereof, defining a converging venturi terminating at a throat between the inlet and outlet ends; an electric dynamo having a sealed housing and driving means protruding in rotatable sealed relation from the housing, and external propeller means keyed to the driving means; means holding the housing to the tubular form inwardly spaced from the inner wall and in the flow path, with the propeller means being supported centered with slight radial clearance within and at the throat and with the housing being located downstream of the throat; the combined configurations of said inner wall and said housing generally defining a diverging venturi downstream from said throat toward the outlet end; said tubular form also having an outer wall sealed over the inner wall and defining a buoyancy chamber therebetween, operable to provide buoyancy of the portable electric generator unit in the stream during use; and means to moor the tubular form within the stream so that the moving stream water must flow through the longitudinal flow path.