Researchers at Michigan State University have built a prototype gasoline engine that requires no transmission, crankshaft, pistons, valves, fuel compression, cooling systems or fluids. Their so-called Wave Disk Generator could greatly improve the efficiency of gas-electric hybrid automobiles and potentially decrease auto emissions up to 90 percent when compared with conventional combustion engines.
The engine has a rotor that's equipped with wave-like channels that trap and mix oxygen and fuel as the rotor spins. These central inlets are blocked off, building pressure within the chamber, causing a shock wave that ignites the compressed air and fuel to transmit energy.
more at the link
Posts: 29950 From: farmington, maine usa Registered: Oct 2004
And how come we never see a "proof of concept" working model of these ideas. Even just a miniture working model.
Alot here remember when the Wankel Rotary Engine was anounced, how long it took to come to fruiation, and what became of it's proposed 'world-changing' potental.
The engine received it's first patent in 1929, began development in the early 1950s, and was a working prototype in 1957.
The Wankel's chief advantage is power to volume/weight ratio. In the era when it was developed it was light years ahead of existing technology, but it's got inherent inefficiencies that make it hard to get as good a power to fuel ratio as can be had with a modern piston engine. Even piston engines are fairly limited, rarely breaking 30% efficiency. If a new technology came by that allowed even 50% efficiency it would be a game-changer.
Remember, the heat of exhaust and radiator is basically energy from gasoline that is being thrown away, unused.
82-T/A [At Work] Member
Posts: 18244 From: Florida USA Registered: Aug 2002
Sounds awesome... there's a lot of neat engine designes that have come out in recent years, including one that uses pistons, but is sort of a mix between a rotary plane piston engine, and a wenkle rotary engine.
Not sure though that it would drop 1,000 pounds... hah....
My solid cast iron 1969 Oldsmobile 455 big block, with all the accessories and a cast iron intake and heads, WITH the Th-400 filled with fluid, just comes in under 1,000 pounds at like 968lbs. So unless we're converting massive 70s cars, I don't think we'll be shedding much weight.