On 30/01/2012 10:52, Doctor Drivel wrote:
Nightjar wrote:
On 30/01/2012 04:10, Doctor Drivel wrote:

"Nightjar" wrote in message
...
On 29/01/2012 17:45, Andy Champ wrote:
...
Most of the time the IC engine will be running at a lower, more
economical setting. Which is probably wide-open throttle, peak
torque until the battery is full - then stopped for a bit. Repeat
until journey's end.

The most economic setting for any IC engine is usually in the range
65%-75% of maximum power.

This Yo-Mobile engine not like any other engine you have known, it
is a "rotary vane engine". It is also tuned to turn a genny.

Despite the claims, it is not a new concept,

The point is that it is very different to current engines, yet you are
prattling about current tripe.

They all use the same laws of thermodynamics.

merely a new version of
an old idea. A major problem in the past has always been vibration,
due to the variable rotational speed of the vanes.

It appears the Ruskies have got around that - clever people.

We won't know whether they have solved the problem until the cars start
appearing on the market. The simplest answer is a multi stage engine,
where the vibrations from one set of vanes cancel out the vibrations of
another. However, that can still lead to excessive component wear.

Colin Bignell