FLASH--May 18th--2 whales with cuts "apparently caused by a boat propeller" headed upriver from San Francisco !
Wouldn't have happened if boat had used Ribbon Drive propulsors-- one shrouded coiled vane, NOT multiple blades flailing away at the water [and at marine life or swimmers ].
SCIENCE SUMMARY: Since 1999 the Ribbon Drive propulsor--a shrouded, stretched series of coils--has been corkscrewing into the forward wall of water, BORING into it, PULLING ahead. The outer cylinder PREVENTS high energy water from mixing with low energy water until the exit. More ENERGY is added at each coil, increasing exit THRUST out the back. The changing coil angles and continuous vane MINIMIZE cavitation.
RIBBON DRIVE includes:
ALTERNATIVE / RENEWABLE ENERGY--Low Head Hydroelectric Power !. . . . . . [ Go to www.hydrocoilpower.com ]
ECO-friendly "FISH LADDER" Pump
SAFER, QUIETER MARINE PROPULSION DRIVE
Stainless steel prototype, operational, central design, 2nd generation
Stainless steel, entry end, central design; auxiliary flow side inlet ducts visible.
Ribbon Drive Propulsor in nacelle [George Retseck illustration]
Typical installation under or behind hull of watercraft or ship. Cylinder focuses the water energy. Water entering at left is speeded up more by each coil further out. Ducts [wheel and hollow spoke appearance] channel extra water from outer slipstream into inner thrust stream beyond first coil. This increases exit stream volume and thrust like an afterburner, and reduces cavitation to near zero.
How is this technology special?
INCREASED THRUST / EXIT PRESSURE / VELOCITY -- without requiring high RPM's for propulsion or pumping.
ATTACK THE FRONT WALL OF WATER with a corkscrew action
MINIMIZES CAVITATION -- less noise, less corrosion
CONSERVES ENERGY--
lightweight materials
varying coil angles-->
add incremental force for propulsion or pumping
extract /capture energy incrementally inside hydroelectric turbine
side ducts:
for adding liquid inside to increase exit thrust/ volume in propulsion or pumping, or use in mixing / manufacturing
for early water exit from turbine during pressure backup when current flow slows
outer containment cylinder:
to separate external low-energy water from inner high-energy water during acceleration
to focus energy of spillways/ river/ ocean current, not allowing it to disperse
INCREASED CAPTURE of KINETIC ENERGY for Low Head Hydro--over dam, down millrace, run-or-river, or water in CONDUIT from reservoir to generatehydroelectric power, even in variable flow conditions.
The inventions herein are protected under patents registered USPTO #6,357,997; 6,626,638; 6,431,926; 6,357,998; 6,527,520; 6.592,335; 7,018,170; and patents registered or pending abroad.
< [website revised April 2009] >
Website content copyright 2007 by HydroCoil Power, Inc. and FLUIDmotive, inc. All rights reserved.
Click on this link to go to the Popular Mechanics article on the stealth drive by Fluidmotive in the June 2003 issue.
