How is it that a turbo would use "heat energy" to stuff more air in? Seems it is transfering kinetic energy from the exhaust to the intake via the shaft between the two compressor sections to me. A turbocharger is not a heat engine.
Mike On Jul 15, 2011 11:48 PM, "andrew strasfogel" <astrasfo...@gmail.com> wrote: > To make matters yet more complicated, I drive a CA version 1985 300TD with > the trap oxidizer, deigned to reduce emissions (soot). How does this factor > into the equation? > > On Fri, Jul 15, 2011 at 11:10 PM, Peter Frederick <psf...@earthlink.net >wrote: > >> The amount of fuel injected on mechanically governed engines is controlled >> by the governor (inside the IP as a rule) along with a mechanical over-ride >> to permit max fuel when the governor doesn't "think" it's needed. On >> electronically controlled engines, it's the computer. Diesel engines will >> NOT run reliably at low speeds or idle without a governor, it's almost >> impossible to manually control the fuel delivery well enough since it's just >> a tiny, very short duration squirt at TDC or a bit before. >> >> To get the correct fuel/air ratio under load, there must be a metering >> system that measures the air induction rate, either a flow meter or a >> pressure transducer correctly calibrated. >> >> Black smoke indicates overfueling, but it will also result from incorrect >> injection timing -- this is very evident in older US made diesels of all >> kinds due to the use of fixed injection timing set for correct timing at >> around 2000 rpm. Very much deviation from that rpm and the timing was >> seriously off -- which means under load as the gears are changed a huge >> cloud of black smoke from too early injection (and the horrlble sound of the >> engine knocking very badly) is produced until the rpm gets up to 2000. Mack >> and Screaming Jimmes were the worst, but they are all bad about it. Easy to >> tell the ones with variable timing -- not only are they quiet, but no smoke. >> >> All new engines have soot traps, and so smoke isn't usually visible. >> >> Peter >> >> >> ______________________________**_________ >> http://www.okiebenz.com >> For new and used parts go to www.okiebenz.com >> To search list archives http://www.okiebenz.com/**archive/< http://www.okiebenz.com/archive/> >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/**mailman/listinfo/mercedes_**okiebenz.com< 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 _______________________________________ 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
