----- Original Message -----
Sent: Wednesday, June 20, 2007 7:26
AM
Subject: [FlyRotary] Re: Fw: Different
Rotary Port configurations
In a message dated 6/20/2007 2:44:33 A.M. Eastern Daylight Time,
WRJJRS@aol.com writes:
The only cons I see to the system is the need to run a pump to
feed high pressure to the injectors. The plumbing must handle HIGH common
rail pressures of 1100 bar. Plumbing like this has been used on diesels for
ages though and has become ultra reliable.
For the near future I may have to come out of retirement and build an
engine. That 1100 bar, isn't that 16,170 PSI?
Sounds like there will be a pricey cast iron pump in there somewhere.
Lynn E. Hanover
These pressure levels are certainly correct for common
rail diesel injection. Most of them inject multiple squirts at each injection
stroke, depending on engine condition.
The question I would ask myself is, do I need that much
pressure with gas injection? The diesel ignition does not depend on mixture
ratio, so there is no flame probagation issue. The big factor for the diesel
is droplet size, meaning fuel surface area contacting where the hot air starts
combustion.