Power cycles from Low Speed Water Flows

Like an Umbrella in the Wind


Our framed marine parachutes can create extreme pull forces from low speed water flows to create a power stroke.  We call them water pistons.

Aerodynamic Retrieval


By transforming from maximum resistance to a hydrodynamic configuration, our water piston can be retrieved, with minimal force, for an almost effortless return stroke.

The Physics


Drag equations show that extreme forces can be created from low speed water flows; and that minimal increases to piston diameter, and/or flow velocity, dramatically increases pull force.

Extreme Pull Forces When Open


The piston travels downstream under force creating the power stroke.  

The line in red represents collapsing of the piston.

Completing the Power Cycle


When at the upstream end the piston expands, completing the power cycle.

Converting Drag into Watts


Based on third-party drag test data, with 50% pull force at 1/3rd of the flow speed, preliminary calculations show that a 9 ft energy collector can extract 3 kw of clean energy from water flows at 5 mph.

A Technology Primed for Evolution


The Hyper-Chute Systems water piston is not just a device, it's a technology. 

Placing a water piston in a cylinder, creates an effect similar to that of a piston-and-cylinder combustion engine; but, without the combustion.  Just as the first single piston engine has evolved into computer-controlled, multi-cylinder, power plants our technology is poised for similar evolution! 

The cylinder protects the piston, controls the flow, and also creates the intake and exhaust systems.  The intake port is always open and under pressure from the oncoming mass.  The piston is controlled by, and works synergistically with, an actuator to expand and collapse. The piston also serves as the exhaust valve, which, when expanded, restricts the exhaust port to contain the energy within the cylinder driving the piston downstream.  When downstream, with one single linear activation of the actuator, the piston then collapses into a hydrodynamic, fish friendly, configuration to exhaust the mass back into the resource.  It can then be retrieved upstream, where reactivating the actuator expands the piston to begin another power cycle.

The functions and components of the piston/actuator assembly are completely adjustable and tunable to achieve desired performance; not to mention the possible variations in piston shape, design, and porosity.  In addition, system activation can be accomplished mechanically, hydraulically, pneumatically, or electronically providing for unlimited development options.  In addition to controlling the piston via the actuator, the forces on an open piston can be used to control an actuator.  Together, they work as the cam which controls when and how far the valve opens and closes.  This is also what enables one piston to control an opposing piston in a dual piston self-cycling system.

On a power stroke, our 3 foot prototype test piston creates 18 lbs. of drag from a 1.5 mph water flow, and, when collapsed, can be retrieved with less than 2 lbs. pull force.  Drag equations show that doubling flow velocity quadruples pull force; and, increasing piston diameter, creates non-linear effects to increases in pull force.  This explains how extreme amounts of force can be created.

Without the need for hydro-static head, our technology can be implemented with minimal infrastructure, which minimizes costs, simplifies deployment, and offers unlimited upscaling; all while remaining environmentally friendly.  Using materials which are easily sourced, recycled and water resistant, such as plastic and nylons, creates sustainability.  Building an enclosed system would allow for deployment at any depth.

Just as each auto manufacturer has developed their own engine design, we look forward to the evolution of our technology. Although we are currently designing our own engine, we invite all interested engineers to take on this challenge in order to present a global front in the fight against climate change.   

Click on this picture to see a short video clip
Click on this picture to see a short video clip