Mads, om du ikke kan gi han ett bedre svar, så stenger du vel heller bare igjen.
Mener det skal være inntaket til RAM luften, er ikke helt sikker. Men skal sjekke opp dette i morgen. Stay tuned.
Ram air bruker man for å kjøle ned heatexcangers, legger ved to linker slik at du kan se litt på bilder samt litt tekst slik at du kanskje blir litt klokere på det?
Edit 1----------------------------------
"The "Ram Air Inlet" is a small scoop, generally located on the "Wing to Body Fairing." Nearly all jetliners use a modulating door on the ram air inlet to control the amount of cooling airflow through the primary and secondary ram air heat exchangers.
To increase ram air recovery, nearly all jetliners use modulating vanes on the ram air exhaust. A "Ram Air Fan" within the ram system provides ram air flow across the heat exchangers when the aircraft is on the ground. Nearly all modern fixed-wing aircraft use a fan on a common shaft with the ACM, powered by the ACM turbine."
http://en.wikipedia.org/wiki/Environmental_Control_System
Edit 2---------------------------------------------------
http://www.b737.org.uk/airconditioning.htm#Ram_Air