I've been known to slip off the rails on occasion, so that is possible.. ;))
Thanks, BTW. I'm going to go look up Strochometric... or however the hell you spell it and learn first how to spell it... then how it applies or not to diesel combustion. Grant... AZ On Fri, Jul 15, 2011 at 7:27 PM, Curt Raymond <curtlud...@yahoo.com> wrote: > I think Philip meant that when the engine is set up correctly it won't put > in more fuel than a given volume of air can support... > > I also think you went off the rails when you mentioned stociometric (I > can't spell it either) ratios. Unfortunately I loaned my copy of the history > of Rudolph Diesel's magical invention to Dwight but in the back its got > quite an interesting discussion of that and the lean vs rich line on a > gasser and then explaining how none of that applies to a diesel. Wish I > could remember more of it. > > -Curt > > Date: Fri, 15 Jul 2011 17:39:00 -0700 > From: G Mann <g2ma...@gmail.com> > To: Mercedes Discussion List <mercedes@okiebenz.com> > Subject: Re: [MBZ] Vacuum Pressure Converter for AT - what's it good > for? > Message-ID: > <cantulyiqrkktp4+ug8-ok6fqrd11mddbbi71ytddyyaijnq...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I stand ever so humbly corrected. > > So when a diesel engine is under load and over fueled and makes loads of > black smoke due to unburned fuel there is still an "excess of air just > along > for the ride"???? > > Sorry, with all respect, does not compute in my world of reality and diesel > experience. > > So, if you would be so kind, "splain" to me just how the engine limits the > fuel load based on the air charge? What, other than throttle position at > the IP, limits fuel volume at the injector for each RPM of the engine? > > My humble understanding of physics tells me the turbo extracts heat energy > from the exhaust path and converts that to mechanical energy resulting in > compressing an additional air charge into the intake path. This translates > into a more oxygen rich block of air in the cylinder at the compression / > ignition stroke. Additional oxygen supports greater expansion and more > complete burning of the fuel supplied at injection which transfers heat > energy to mechanical and drives the piston down [power stroke]. > > More oxygen plus more fuel makes more heat energy, thus more power. > To support combustion successful engine physics requires a stotsimetric > (sp) > ratio of 11.2 to 13.6 . Adding fuel or air outside that ratio band will > fail combustion, or at least impact efficiency. > > Please correct me where I am wrong. It's been working for me for about 30 > years now with Mechanical Unit Injection. > > Grant... > AZ > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
