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#61
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Smart people buy Priuses
Michael Pardee wrote:
> "Jeff DeWitt" > wrote in message > ... >> Marc Gerges wrote: >>> In alt.autos.toyota.prius Jeff DeWitt > wrote: >>>> And of course you do realize there is a form of hybrid technology that >>>> has been performing a vital roll in Americas transportation system for >>>> the last 50 years or so... the diesel locomotive. >>> Although many diesel locomotive are diesel electric, there's no buffer >>> battery between the diesel engine and the train. The generator-traction >>> motor setup is nothing more than the system that transmit power from the >>> engine to the wheels. >>> >>> cu >>> .\\arc >> True, but having diesel engines and electric motors meets the dictionary >> definition of hybrid. >> >> "something (as a power plant, vehicle, or electronic circuit) that has two >> different types of components performing essentially the same function" >> >> Both the diesel engine and the electric motors produce mechanical energy >> sufficient to operate the locomotive... and yes I realize I'm being a bit >> picky here <G> >> >> >> Jeff DeWitt >> > If I'm understanding it right, the electric part is merely a transmission > rather than a motive source. Oddly, "how stuff works" still refers to it as > a hybrid system although there is no secondary source of electric power; it > comes straight from the diesel. The train doesn't move if the engines aren't > generating power. Now it's my turn to be picky ;-) > http://travel.howstuffworks.com/diesel-locomotive.htm > > Mike > > > I wonder... In the northeast there are a lot of trains that get their power from overhead wires. I wonder if any of those locomotives also have diesel engines to provide power when the overhead lines aren't available. Jeff DeWitt |
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#62
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Smart people buy Priuses
In alt.autos.toyota.prius Jeff DeWitt > wrote:
>> >> Although many diesel locomotive are diesel electric, there's no buffer >> battery between the diesel engine and the train. The generator-traction >> motor setup is nothing more than the system that transmit power from the >> engine to the wheels. >> > True, but having diesel engines and electric motors meets the dictionary > definition of hybrid. > > "something (as a power plant, vehicle, or electronic circuit) that has > two different types of components performing essentially the same function" > > Both the diesel engine and the electric motors produce mechanical energy > sufficient to operate the locomotive... and yes I realize I'm being a > bit picky here <G> No, you're not being picky, you're just wrong <eg> The diesel is what moves the train. The generator/motor is just the transmission. Without the diesel the whole electric setup is worth just as much as a gearbox without the engine. cu .\\arc |
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