Pressurize a camper
- Thread starter deadly99
- Start date
Coachgeo
Explorer
Pressurizing is done to keep "road dust" out of camper box when driving. Some parts of the world this is a must. You start with a clean camper inside and when you get to your destination and open the door..... there is layer of dust everywhere inside the camper. Pressurizing it helps small air leaks have a stream of air escaping that prevents dust from entering. Also helps lower compartments not bring in water during deeper water crossings.
chet6.7
Explorer
Check out Caravan Campers,"Optional pressurizing air vent is water resistant and increases the inside air pressure which keeps DUST OUT!"
I didn't know there was another company with the same name.The link below is for a US company,
http://caravancamper.com/
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Coachgeo
Explorer
link... good article / video
https://www.caravancampingsales.com.au/editorial/details/dont-bite-the-dust!-58513/
A camper under motion has high and low pressure areas, just like an airplane wing. This tends to suck air out of the camper in some areas and force it in in others, resulting in dust intrusion.
I know a few folks have plugged their cab exhaust into the camper, utilizing the filter aspect of the cabin air system to get clean air into the camper. This obviously has limitations. But it wouldn't be hard to utilize a second of the same pump and filter apparatus to bring fresh, filtered air into the camper when underway.
robert
Expedition Leader
It's pretty common to see vent like these pop-ups on the boxes on the back of utes in Australia.
https://www.amazon.com/Black-Alumin..._rd_t=40701&psc=1&refRID=05EWP73TZK24498FDBQ6
https://www.amazon.com/Black-Alumin..._rd_t=40701&psc=1&refRID=05EWP73TZK24498FDBQ6
Victorian
Approved Vendor : Total Composites
This is certainly an issue with cheaply made trailers and campers. Quality windows/doors and hatches should never let dust in. Another big details that's overseen are opening at the rear wall. The vortex created outback is fairly big and should not be underestimated. Pressurizing could work, but I do not have any practical experience with that.
Cheers
Cheers
s.e.charles
Well-known member
I've seen those but never gave them too much thought. would a plenum holding a filter be installed underneath the vent? and somehow water, driven water at that, would have to be accommodated, no?
CoyoteThistle
Adventurer
Not sure if this is a good approach or not (just a design idea, I haven't installed it yet) but I'm planning on using a small bilge air blower like this:
https://smile.amazon.com/gp/product...sfl_title_14?ie=UTF8&psc=1&smid=A3EBZ5HHZPL73
It'll bring in air from outside through some sort of thru-hull in a wall. I'll add a motorcycle-type air filter on the intake side and some ducting to connect it all. Wire it to an on/off switch in the cab.
https://smile.amazon.com/gp/product...sfl_title_14?ie=UTF8&psc=1&smid=A3EBZ5HHZPL73
It'll bring in air from outside through some sort of thru-hull in a wall. I'll add a motorcycle-type air filter on the intake side and some ducting to connect it all. Wire it to an on/off switch in the cab.
robert
Expedition Leader
I'll be honest, I don't quite understand how they work myself. I know it has to do with the airflow over the camper/shell. They mount them on the top near the front and rear and they're a factory option on many of tehir caps including the ARBs. Here's a thread I found talking about them: http://www.4wdaction.com.au/forum/viewtopic.php?t=148488
Neil
Observer
What pressure would you need to keep the dust out and how would you compensate for high altitude say over 4000m . I am at this height now in Argentima and the dust os teal bad so this is an interesting one.
Not sure that its practical to make the cabin completely air tight. I huess if it was then this alone would keep the dust out. Therefore you would need to create more pressure than your losing all the time. This is a challenge.
Sounds like a great idea in theory. How it works on practice i think is another matter.
Good thread
Thanks
Neil
Not sure that its practical to make the cabin completely air tight. I huess if it was then this alone would keep the dust out. Therefore you would need to create more pressure than your losing all the time. This is a challenge.
Sounds like a great idea in theory. How it works on practice i think is another matter.
Good thread
Thanks
Neil
Buliwyf
Viking with a Hammer
There's an intense + pressure wave at the nose of the trailer. A simple filtered air inlet there would do the trick.
Same reason your AC in vent is at the bottom of your windshield, and not on the fender.
On my older Ford F250, the bed liner would get air under it's rear and inflate and start to lift out. On my work truck, I can see my rear doors (Reading box) get pulled open an inch, on my rear view camera.
Same reason your AC in vent is at the bottom of your windshield, and not on the fender.
On my older Ford F250, the bed liner would get air under it's rear and inflate and start to lift out. On my work truck, I can see my rear doors (Reading box) get pulled open an inch, on my rear view camera.
s.e.charles
Well-known member
this might be someone's next great invention:
remember the bottle generators for your bicycle headlight? it had a knurled wheel which could be flipped against the tire sidewall to make juice. why not a similar gadget for a trailer fan? when the tires were revolving, fan speed would be governed x rpms. not many parts to break or be serviced - all mechanical.
remember the bottle generators for your bicycle headlight? it had a knurled wheel which could be flipped against the tire sidewall to make juice. why not a similar gadget for a trailer fan? when the tires were revolving, fan speed would be governed x rpms. not many parts to break or be serviced - all mechanical.