On 28 Jan, 04:46, bildan wrote:
On Jan 27, 9:27*pm, Orval Fairbairn
wrote:

In article
,

*bildan wrote:
Take a look at this:
http://www.fairdiesel.co.uk/

One thing I like is the pistons can be held at TDC for the whole
injection interval. *That removes one of the big issues for high RPM
diesels.
They mention an improvement in efficiency is possible
but don't give any numbers. I suppose that for an essentially
fixed speed application such as an aircraft engine the cam
profile could be selected to optimise efficiency at that speed.

Interesting.