Pokusao sam prevesti iz engleskog, nadam se da je manje vise ispravno
. Za svaki slucaj, postavio sam uvjek i originalni tekst. I ovaj tekst je sa oficijelne stranice (http://www.formula1.com)EDIT: Dodao sam jos link na stranicu, gdje je ovaj tekst:
http://www.formula1.com/news/features/2011/6/12186.html
Pored tekste ima jos nekoliko slika.
Sta je "blown diffuser"?What is a blown diffuser?
On road cars, the engine exhaust exits are normally located at the rear of the car. On a Formula One car they are deliberately located in front of the rear wheels so that the hot, fast flowing exhaust gases can be channelled towards the car’s rear diffuser. This increases airflow through the diffuser and in turn increases the amount of downforce the diffuser produces. This is perfectly legal under current F1 regulations.
Kod normalni auta, auspuh se vecinom nalazi na zadnjoj strani auta. Kod F1 bolida auspuh se nalazi ispred zadnji guma, tako da bi vruci i brzi gasovi koji izlaze iz njega mogli biti upuceni prema difuzoru. To povecava kolicinu zraka koja prolazi kroz difuzor, sta naravno povecava nivo "downforca" (pritisak prema zemlji). Prema trenutnim pravilima dozvoljeno je koristiti "blown diffuser".
Sta je "off-throttle blown diffuser"?What is an off-throttle blown diffuser?
Normally the engine will only produce exhaust gases when the driver is on the throttle. This means when the driver lifts off, the blown diffuser is suddenly robbed of the additional airflow. To get around this, some teams have modified their engine mapping so that when the driver lifts off, although fuel supply and ignition are cut, airflow through the exhaust - and hence to the diffuser -continues. This technique has become known as ‘cold blowing’ - the exhaust is still ‘blowing’ into the diffuser, but that airflow is now ‘cold’ since no fuel or ignition is involved.
U normalnom slucaju motor proizvodi gasove samo kada vozac pritisne gas. To znaci da kada vozac pusti gas, od jednom difuzor gubi onu dodatnu kolicinu zraka koju dobiva na taj nacin. (moj dodatak: to izaziva nestabilnost, odnoso, bolid gubi balans) Dabi to zaobisli neki teamovi su modificirali svoje mape motora na taj nacin da i ako vozac pusti gas i sa tim prekine tok goriva i paljenja unutar motora, protek zraka (gasova) kroz auspuh i dalje nastavlja. To se zove "cold blowing" (hladno puhanje). "Hladno" zato sto pumpanje nastavlja i ako se nepali dodatno gorivo.
Sta je "hot blowing"?What is ‘hot blowing’?
Some teams have taken things a step further. To make the off-throttle ‘blowing’ as similar - ie as hot and fast flowing - to the on-throttle ‘blowing’ as possible, they cut the ignition when the driver lifts off the throttle, but continue to inject some fuel through the engine’s valves into the exhaust. This fuel ignites on the hot exhaust, increasing the amount, speed and temperature of the airflow exiting towards the diffuser.
Neki teamovi su te tehnike boboljsali. Da bi napravili takozvani "off-throttle blowing" (puhanje bez gasa) sto slicnijem puhanju vrucih gasova (pod punim gasom) oni i dalje kada vozac skloni nogu sa gasa prekinu paljenje u motoru, ali pustaju pomalo goriva, koje kroz motor dolazi do vrucog auspuha i na taj nacin (vruci auspuh) ta mala kolicina goriva se spali. Tako se poveca kolicina, temperatura i brzina zraka (gasova) koja iz auspuha izlazi pred difuzor.
Zasto FIA zeli zabraniti "off-throttle blown diffuser"Why does the FIA want to clampdown on off-throttle blown diffusers?
The FIA has argued that the car’s exhaust system is there to exhaust gasses from the engine. It doesn’t do that when a driver is off the throttle and teams are now using it to instead influence the aerodynamic characteristics of the car, something the FIA believes infringes Article 3.15 of Formula One’s technical regulations, the final part of which states that ‘any car system, device or procedure which uses, or is suspected of using, driver movement as a means of altering the aerodynamic characteristics of the car is prohibited’. This clause was introduced for the 2011 season with the primary aim of outlawing F-ducts.
The FIA’s fear is that if they do not clamp down on off-throttle blown diffusers now, the systems will become more and more extreme and lead to spiralling development costs as those teams without the technology are forced to develop their own versions to remain competitive. Some commentators have also pointed out that it is probably not in the best interests of Formula One’s green credentials to have cars burning fuel when the driver isn’t even on the throttle.
As a result of the above, the FIA wants to ban off-throttle blown diffusers from next month’s Silverstone round and then outlaw blown diffusers completely for 2012, when regulations are expected to require exhaust exits be positioned at the very rear of the car.
FIA svoje odluke objasnjava na slijedeci nacin: Auspuh sistem bolida sluzi tome da bi bolid ispustao gasove iz motora vani. To se ne desava kada vozac pusti gas. Trenutno neki teamovi ipak te gasove koriste da bi utjecali na aerodinamiku bolida. Clanak 3.15 na kraju kaze: Svaki sistem bolida, dio bolida ili procedura bolida koja koristi ili je pod sumnjom da koristi pokrete vozaca da bi utjecala na aerodinamiku bolida je zabranjena. Ovaj dio pravila je FIA uvela pocetkom 2011 i sa tim sprjecila teamove da koriste takozvane "F-ducts" (to je ono sto se vidi na mom avataru).
Strah koji FIA ima je da ce unaprijedjenje ovog sistema preci u neki ekstrem i da ce na taj nacin troskovi za istrage i dalje unaprjedjenje eksplodirati, sta bi skodilo malim teamovima. Dalje smatraju da nije u interesu "zelene" formule 1 da njeni bolidi pale gorivo i kada vozac ne daje gas.
Iz tih razloga FIA je odlucila da od Silverstona zabrani takozvani "off-throttle blowing" a posle toga da zabrani totalno takozvane "blown difuzore" nakon kraja sezone 2011. Zabrane ce se desiti na s'tim sto ce biti propisano za 2012 da auspuh mora biti na samom kraju bolida (ja sam u prethodnom postu napisao na gornjoj strani bolida), znaci ipak na samom kraju bolida.
Kako bi FIA kontrolisala zabranu "off-throttle blown difuzora"?How would the FIA police a ban on off-throttle blown diffusers?
Thanks to the fact that the FIA has access to the teams’ standardised ECU systems, the governing body can easily monitor the relevant engine mapping parameters, such as ignition, fuel and throttle levels.
Zahvaljujuci cinjenici da FIA ima prisustvo standardizovanim ECU sistemima sviju teamova, oni (FIA) mogu jednostavno pratiti (live) sve podatke oko motormapa, paljenje, nivo goriva i gasa. Teamovi nista ne mogu sakriti.
Ko ce najvise izgubiti sa zabranom?Who stands to lose out most from a ban?
In theory, the teams with the most highly-developed ‘hot blowing’ systems have the most to lose, Red Bull being the most widely-cited example. However, there are differing opinions on just how much difference a ban will make. With the teams already working on revisions to engine mapping and car design in anticipation of a rule change, some feel any difference in their relative performance will be negligible. At the opposite extreme, some have suggested that with a ban in place, Silverstone could effectively herald the start of a ‘new’ 2011 championship.
Teoretski, ocekiva se da ce najveci gubitnici biti teamovi koji su svoje sisteme najdalje unapredili, Red Bull je tu najbolji primjer. Ali postoje razlicita misljenja o tome kolike ce te razlike biti, odnoso, koliki ce utjecaj zabrana imati. Posto teamovi vec rade na modifikacijama motor mapa i designa bolida sa ocekivanjem promjena pravila, pojedini ocekivaju da nece biti veliki promjena. Sa druge strane postoje i oni koji ocekivaju da od silverstona pocinje nova sezona 2011.
Mora Alonso bežat od njega ko od vraga , ak bu sreće možda Petla izbaci 
