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<a href="mailto:http://www.uni-essen.de (no personal e-mail available)?subject=New steam car engine developed in Germany">Martin Werbeck</a> wrote:
>
> Ever heard from the "Zero-emission-Engine" developed by
> the IAV GmbH in Berlin ?
> This is a new 3 - cyl single acting motor/steam generator
> unit with a new kind of burner
> giving extremely low emissions. To boost thermal efficiency,
> the cylinder head is heated
> by a second burner. Temperatures are very high (900 °Celsius)
> and lubrication is proposed
> to be with a thin water/steam layer. Max thermal efficiency
> is about 24 %, and does not fall below 18 % at low power
> outputs, and the fuel consumption is calculated to be not
> higher than a modern turbo - diesel. Weight of power unit is
> 120 kg (around 250 lb)and power
> output at moment is around 45 hp and should be 75 hp when
> fully developed. Cut-off and torque is variable - so NO
> gearbox is used. Anybody`s interested ??
> If you want pictures and more information (also in
> English), look in the Internet at the
> IAV GmbH Berlin homepage for the Dampfmotor or steam engine;
> [
www.iav.de]
> My personal opinion is that this project is a serious
> attempt ( not an improvised engine using ic-engine parts) and
> has been developed to a relatively high standart so far. I am
> sceptical wether it would stand the high temperatures for
> long in everyday service, although there is no other way to
> achieve really high thermal efficiencies. Nevertheless
> I think 24 % should be possible with lower Temps., e.g. the
> Paxton Phoenix achieved
> 23 % with 1200 °F (650 °C). A disatvantage of the design is
> the undesirable large clearance volume , because of the
> superheater- cylinder head, causing perhaps unnessecary high
> steam consumption rates at short cut-offs.
> Martin Werbeck.</HTML>