Hybrid Car – More Fun with Less Gas

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Posted by John Gilmer on August 16, 2010, 6:47 am


Adiabiatic compression and expansion of air wastes quite a bit of energy.

In theory, isothermal compression and expansion is highly efficient BUT that
can't be done is a practical machine but can be approached with several
stages with intercooling or interheating (for compression, or use

But there is something called the "water piston" engine.   The water, on
expansion, tends to add heat to the air.   When the water is sent to the
hydralic motor, it picks up heat from the environment.

The folks in this potential business are quite protective of their
technology.   "Seems to me," that if they made a "test version" that might
power a golf cart, the kinks could be worked out.

Posted by News on August 9, 2010, 5:35 pm

Hey, I remember a story about an air-powered vehicle,
but It doesn't seem to have shown up in the Auto-X prize
Anybody have any ideas about how it's doing nowadays?

It is still on the go.

Posted by vaughn on August 9, 2010, 6:07 pm

The usual nonsense from the usual source.


Posted by News on August 9, 2010, 6:39 pm

Have you notified Tata of this nonsense?

Posted by Bob F on August 10, 2010, 12:57 am

News wrote:

A simple search of the Tata sites shows everything they have to say about their
miraculous air powered car.
Not a word.

Pretty impressive.

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