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Hybrid cars
I was under the impression that the hybrid vehicles are gas/diesel over electric, like a train locomotive. This allows the fueled engine to operate on it's most efficient fuel to power to emmissions RPM setting, only when needed. IE the fueled engine is not directly linked to the driving wheels. There are batteries or capacitors which recover the braking energy and stored energy from the running generator for the electric "traction" motor(s) during acceleration. This battery power can suppliment the gernerator power for higher performance or be used alone for quiet/zero emmision operation on some proposed vehicles.
I have also heard that Oshkosh Truck is working on some sort of gas turbine (jet engine) over electric power for an upcomming military application. Dodge is making noises of a diesel-electric hybrid truck in the near future.
There was also talk of a hydraulic accumulator braking system used to recover braking energy. This stored hydraulic pressure was used for additonal power for acceleration. (Ford trucks I think?)
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Amen.
Let's not forget that most diesel engines will run (quite nicely) on just strait vegetable oil. The refining process to generate Bio-Diesel requires quite a bit of energy (heat) and the addition of a refined methanol to create.
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slbroug: My 2001 VW Jetta TDI (Turbo Direct Injected diesel) gets the same king of milage (+/- 50MPG) and DOES accellerate quite nicely, also full climate control and all the goodies. Plus it cost less than $20K new.
Ken: Good luck finding a used TDI, they are like gold around here! If you find one, you'll love it.
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slbroug: For me it's just a diesel thing. Everything I own except the Harleys, the push mower and pressure washer are diesel. I even keep a news article around of a guy who built a V-Twin diesel motor for his Harley.
No, I'm not normal.
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Ann is right. The most efficient would be a hybrid diesel. There are, however, quite a few of them around. Diesel-Electric locomotives and marine applications (cruise ships) to name a couple. Imagine how much fuel a train would use with a gasoline motor or heavy highway truck for that matter.
Just because its only used on "super-sized" equipment doesn't mean it's wrong for a family car/SUV. IMHO it just proves that it would make more sense in a smaller vehicle. A step beyond the gasoline-electric hybrid. Now if the gov can only get going with the low sulfer diesel and EPA allow the manufacturers to market some technology...
I for one hope that Dodge pursues the Cummins(diesel)-Electric hybrid truck. By the time it hits the market, I will be looking to replace my '94 Dodge-Cummins.
Just my warped opinion.
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