What is this??

[Principessa]

I don't really now what this is on the Renault. Anyone has an idea?

[manchild]

Filter it is but for what?

[NickT]

It looks like a remote breather, to allow air into and out of a closed system. I don't think the fuel tank breather would be a remote one, so I would suggest that it is for the oil header tank. The scaveng pumps of a F1 engine pump their mix of air and oil into the oil tank and this air needs to escape some where. Also as the engine cools air is drawn back into the system and needs to be as clean as possible hence the small filter.

[zac510]

It looks of temporary nature.

[kilcoo316]

It looks of temporary nature.

It will be moveable depending on which side the pitlane fueller is.

Either for the fuel tank or oil.

edit: It doesn't look as if its fixed into its final position as the flap wouldn't close.

[Monstrobolaxa]

That is an air filter...

And that isn't a Renault supported by the F1 team! That is a Renault that goes to the Renault World Series races and does some demonstration laps. Though the laps are done by a Renault F1 driver, the car is maintained by a sub-contracted company.

[manchild]

Monstro that's not a showcar but latest evolution of R26. These are pics of same car only different angles. Their showcar is R25 and only in Goodwood 2006 they'll show R26 but only because it is GP 100 anniversary.





Since in Indy refueling is done on right side I think that this hose and filter of left side are used to enable breathing of tank as air gues out during refueling and in during the race. I guess it was just attached when that pic was taken and later the lid would be screwed down (check the screw on pic below).

[zac510]

It will be moveable depending on which side the pitlane fueller is.

Either for the fuel tank or oil.

edit: It doesn't look as if its fixed into its final position as the flap wouldn't close.

I'm surprised a race part has a worm drive hose clamp holding it on. I hate those little buggers, always stripping just as you've got them tightened

For the others, on a road car that kind of thing is usually directed to the air intake so the vapours are ingested (and ideally combusted) by the engine.

[Spencifer_Murphy]

Obviously this isnt going to be for the exact same purpose but:

I have a 1993 Ford Fiesta 1.1, i have a book detailing how to work on it, one of the pictures shows how someboby had fitted an induction kit. Because the airfilter sits ontop of the carb (which is used for the single point fuel injection) you need a different type of induction filter than the normal cone. Anyway, below the airfilter there is a pipe which connectes to the carb from the oil filler cap. When fitting an induction kit a filter which looks identical to this one has to be fited onto the pointwhere the hose from the oil filler cap meets the carb.

Obviously an F1 car is more hi tech than my Fiesta , but surely this filter must serve some sort of siliar purpose?

Could it be a filter for, say, a pnumatic system to lift the fuel flap?

[manchild]

One thing is certain - air is entering trough the filter for sure (otherwise there'd be no filter) *perhaps exiting too but entering for sure*

I think its for breating of fuel tank as fuel is being used. Perhaps refueling rig has some extre pipe that enables fast exiting of air while fuel rushes in 12 liters per second?

[scarbs]

Of course this is a race car, it is prepared for scrutineering on the Thursday before the race.

That is just the vent they install on the car when its not in use. There are several different types of fuel plates, the race ones with the quick fill hose, then the one with two connectors for accurately filling\emptying the tank in the pit and a blanking plate. This is the middle plate, the temporary hose and filter are attached to the one of the connectors to allow the tank to expand and contract with heat, don’t forget the cars have been road transported and airfreight so the temperature the idle car will see vary greatly. The vent keeps the tank for expanding or contracting when empty and prevent the tank damaging itself. The filter is of course to prevent rubbish being sucked into the tank and messing up the pumps and EFI system