Word: rosen
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...flywheel in Rosen Motors' power train is something different altogether. It is a roughly 12-in. by 7-in. cylinder that hangs suspended in a vacuum from magnetic bearings and normally spins at 55,000 r.p.m.; today's cars run at an average of 2,000 r.p.m. The energy of the flywheel is stored in this rapid rotation, which generates electricity on demand. In the Rosens' power train, the flywheel works in conjunction with a gas-driven microturbine to make...
...handful of companies are working on advanced flywheel systems to power automobiles, buses and even trains. One company, U.S. Flywheel, is developing a car that uses a series of flywheels, with no gas engine at all. The flywheels would be recharged as batteries are. Rosen Motors will be first to the finish line, says Ben. "There are lots of others working on this. We think we will be there earlier and with better technology...
...year, the Rosens will have spent $13 million on their project. They expect to spend an additional $10 million to $15 million next year, nearly all of it from Ben's silicon-lined pockets. They also plan to begin selling their flywheel to utilities for stationary power generation next year. Says Ben: "By the end of next year, we will have generated enough risk reduction to seek external funding." Eventually they plan to sell shares to the public. They want to build their own plants to make their own power trains and sell them to car companies. In their vision...
That's one reason many competitors in the race for a new engine remain exceedingly dubious. "I consider Rosen Motors to be a very small part of the overall flywheel effort," says Joe Beno, program manager for the electric-vehicle program at the University of Texas at Austin, whose group will put a flywheel motor in a commercial bus in Houston next year. Kevin M. Myles, director of the electrochemical technology program at Argonne National Laboratory, who has done extensive work with alternative-fuel vehicles, doesn't think the Rosens have addressed the safety problems inherent in flywheels. A wheel...
This is not a vision that anyone in Detroit shares. Instead, the industry is working closely with Rosen competitors like U.S. Flywheel, Trinity Flywheel and Unique Mobility. That's a badge of honor to Harold and Ben, who are clearly thrilled to be working together. When they were younger, Ben was very much the little brother walking devotedly in the older brother's footsteps: he followed Harold to Cal Tech, and then to Raytheon Corp. in the 1950s, when Ben got his very first job working for his brother, building missiles. Their paths diverged when Ben went East...