AVTOMOBILIZEM.com

upam da ni blo ze 100 podobnih topicov odprtih

no stvar je v sistemu za vbrizgovanje vode v sesani zrak pri avtomobilu. baje se pridobi kr neki procentov na moci, posebi pri prisilno polnjenih motorjih.
zanima me ce ma kdo ze kksno izkusnjo z tem, pa kaka so kj mnenja.

linki:
http://www.noswizard.com/water.php
http://www.automotiveforums.com/t145184.html
http://www.autospeed.com/cms/article.html?&A=0115&P=1
http://www.europeancarweb.com/projectcars/0304ec_projm3_02/
http://www.saab9000.com/procedures/performance/waterinjection.html
http://www.motherearthnews.com/menarch/archive/issues/059/059-046-01.htm

motherearth je napisal/-a:HOW?

So—you may be wondering—just how does water improve gasoline mileage? After all, plain old H20 won't burn. However, because water doesn't burn . . . the fluid does (in effect) raise the octane of the fuel!

This higher "flash point" produces three specific benefits ( as well as some offshoots). First, because the water cools the gas-air mixture, there is greater potential for expansion (since pressure is directly proportional to temperature). Second, combustion turns the water droplets to vapor . . . which also helps create a pressure bonus ( much as the same substance drives a steam engine).

Finally—and most significantly—the conversion of water to steam consumes heat (at a rate of about 1,100 calories per gram of the liquid) at a very critical instant. This absorption of heat prevents the temperature of combustion from rushing to a sharp peak (as it does in a standard engine) and then dropping rapidly off. Instead, the car's heat increases more slowly, reaches a lower peak, and descends much more gradually. (In addition, the longer overall combustion duration creates more pressure than does a standard engine's cycle.)

SAAB je napisal/-a:Water injection benifits emmission, SAAB says
Water injection is nothing new. During WWII it was used to increase the power of aircraft piston engines. Now Saab has revived the old technology not to boost power, but to maintain full emmission control in a car engine during peak power demands of high-speed operation and acceleration bursts. It has enabled the 2.3-litre Ecopower four-cylinder engine to run at Lambda 1 under all driving conditions

Seveda to je ze stara stvar!! Kukr tm pise, vbrizgavanje vode so mel ze avionski motorji. Stvar je hudicevo uporabna ampak trpi material ZELO!!

Poanta je pa v tem, d k voda pride v bat, in ko se mesanica vzge se voda skoraj v trenutku upari. Ker pa je razmerje tekocega stranja proti plinastem enako 1:1750 (po kmeck 1 liter vode pri enem baru tlaka se spremeni v 1750 litrov pare), kar motorju da nekaj moci, ampak odvzame veliko toplote, predvsem na vrhnjem delu bata in stenah cilindra, posledicno prihaja do prevelikih notranjih napetostih in utrujenosti materiala, kar je (vsaj takrat) pripeljalo do hitrih okvar oz. unicenj motorja. Ce je zdej bolj elasticen material (kar pa mocno dvomim) bi se splacal razmislt, tko pa... Bom ostou pr dobrem starem benzu

Drgac pa bejzte na AGIP-ove pumpe tankat, je bencin ze u originalu z vodo zmesan : :P

hehehe kul agip ma baje hud benz ja

drgac pa ce saab to serijsko vgrajuje v nove masine, al je razvil boljsi material, al je pa neki tretga.

jz bom probu mal v filtr z uno pumpco za roze pospricat joke