[Diy_efi] BMW/Siemens stratified direct injection, link

[Bernd Felsche]

On Friday 20 October 2006 01:55, Mike wrote:
> For the technically minded ;-)
>
> <http://www.siemensvdo.com/press/releases/powertrain/2006/SV_200604_002_e.htm>

Hmmm... don't see much technical content. 

You may be able to see more by visiting a co-developer a little to
the North of your location, Mike. :-)

Piezo-triggered unit-injectors for diesel engines have been shipping
for a while now in Europe. The former VW-Mechatronic.com web site
used to have some technical details of those units, but that site
also now redirects to SiemensVDO.

<http://72.14.253.104/search?q=cache:rnLBbptNhzEJ:www.vw-mechatronic.com/page/produkt_piezo.htm>

This is a worrying trend: Instead of the WWW providing ready access
to technical information from the manufacturer, it's beginning to be
filtered out and reduced to glossy brochures.  They won't talk to
you unless you're buying ~10,000 units/month because that's not
"cost-effective".

So the small innovator is diverted from a primary goal to having to
re-invent lots of wheels. e.g. diesel injectors capable of metering
down to around 1 mg/stroke. [Which btw the VW-Mechatronic site said
it'd achieve with the piezo unit injector. NO specs @ SiemensVDO.]

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