Re: Why Electric Motors Are 3X - 4X More Efficient Than Internal Combustion

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Re: Why Electric Motors Are 3X - 4X More Efficient Than Internal Combustion

Group: alt.philosophy · Group Profile
Author: stratus46
Date: Aug 16, 2008 18:56

bud-- wrote:

> BretCahill@peoplepc.com wrote:

>>
>> Far and away the biggest problem comes from the basic

thermocycles of

>> adiabatic engines, i. e., gas turbines (Brayton/Joule/Ericsson

I),

>> diesel (Diesel) and spark ignition (Otto).

>
> The Prius uses a 4 stroke Atkinson cycle engine. Like a

conventional

> Otto engine, the air-fuel mix is optimum. But like a diesel there

is no

> throttle plate. Not pumping air past a throttle plate is supposed

to be

> one reason Atkinson has a higher efficiency. The effective

compression

> ratio (and power) are controlled by intake valve timing.
>
> http://en.wikipedia.org/wiki/Atkinson_cycle
>
> --
> bud--

Isn't his a throttle plate? Sure looks like it to me.

http://techno-fandom.org/~hobbit/cars/tb/tps/

G²

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