Both. You cannot blow it out without sucking it in. Try breathing out for ten minutes without breathing in...
A jet sucks air in the front and then it blows air out the back adding the energy from the fuel. In doing so, one of Newtons laws (the second I think) dictates that an equal and opposite force pushes the engine forward.
May I direct my venerial colleague toward the Houses of Parliament?
I think that's slightly different. "Try running a country for 7 years without listening to anyone".
I'd like to see most of them not breathe in for 10 minutes...
To gaffa their mouths wouldn't help. I believe they talk from somewhere slightly lower down the body.
On or around Thu, 21 Oct 2004 22:40:37 +0100, Mother enlightened us thusly:
Think the best place to fit is behind the radiator.That is, if you've enough space to fit. When you mount it in front of the rad, it will obstruct the flow during driving. Most cars have the el. fan fitted behind the rad,only in problem (space) cases,they're fitted in front.
Good luck
I was thinking further about this ..
I think (I don't know) the difference in cooling by having the (passive) fan mech (motor body / blades) in front rather than behind the rad is minimal. The thought is that the air has to 'flow' through the radiator for it work and an object placed close in front *or behind* will restrict that flow?
A fan pushing from the front or pulling from the back will (assuming the efficiencies of the fan design are equal) move similar amounts of air and therefore have the same (as far as a real vehicle is concerned) cooling effect?
One advantage of having the fan behind the rad is that it might not suffer quite as much from the muck / rain etc (the rad acting as a filter) whereas *behind* I believe the fan motor is going to run hotter as it's not in the cold airflow itself?
Ducting will improve matters (in both cases) but will restrict the non forced flow of air when the fan isn't running (all be it only slightly)?
I suppose if it's fitted in front you could have both mechanical (behind) AND electric assisted cooling? ;-)
I was considering doing this when I take the 2L pinto out of the Sierra and fit it in the Ranger (kit car). The Sierra has had the viscous coupled fan in there for 22 years and the thing has never showed an over temprature condition in all that time (in spite of towing some pretty heavy stuff on some hot days etc).
When I have experimented with the viscose fan there is no drag whatsoever when the system is cold, but drive is progressivly provided to the fan very efficiently when hot air is allowed through the rad onto it? Why don't folk seem to like them?
Just me thinking out loud .. ;-)
All the best ..
T i m
On or around Tue, 02 Nov 2004 18:16:44 GMT, T i m enlightened us thusly:
'cos they don't all work like that... some spin too much, some not enough.
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