The Hybrid - Hybrid Drive Train (Was APUs From Turbo Chargers)

Steve Spence · science forum beginner Joined: 04 Apr 2005 Posts: 22

werty wrote:

werty · science forum beginner Joined: 21 Nov 2005 Posts: 1

The Ceramic "expander" is needed in a TurboJet engine to be cost
effective
and it COSTS !
The Germans have built 2 stroke diesels that are twice the effeciency
of
gas engines .
They DO not require dual compressors , only a Turbo .
to start . The effecncy is upped by Exhausting thru ports and
intaking thru
valves in head . This allows super "timing" . The exhaust is opened
by ports , but intake is timed perfectly withcams/valves in head .
There's lots of time at BDC !

Bret Cahill wrote:

Bret Cahill · science forum Guru Joined: 05 May 2005 Posts: 480

If the efficiency of a turbo only system bypassing the cylinders could
be improved it might make sense on what should be called a "hybrid
hybrid."

When you are just sitting or moving slowly in traffic you bypass the
cylinders and only run the turbo system to charge up a fast discharge
battery to power an electric motor. Then you might get 45 mpg city
even in a big SUV.

And when you haul your boat up a 6% grade at 70 mph you run the entire
engine and get 3.2 mpg.

Bret Cahill

Google