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ENERMAX Announces the New DFR Technology with D.F.PRESSURE

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ENERMAX transcend itself by developing the PC fan- D.F. PRESSURE. With the patented DFR (Dust Free Rotation) technology, it allows the fan to swiftly blow away dust in order to prolong the lifespan and APS (Adjustable Peak Speed) control to balance between cooling performance and silent operation. D.F.PRESSURE is definitely the best choice for PC cooling and gaming systems.

Patented DFR (Dust Free Rotation) Technology
Thanks to the DFR (Dust Free Rotation) technology, it offers a total solution for self-cleaning: prolong the product lifetime and extend the intervals for fan and system cleaning maintenance. The revolutionary DFR technology makes the fan to spin in reverse action at the highest RPM set by the user for 10 seconds upon startup before it resume to the normal operation.





High Pressure Blades Design
Due to the high pressure blade design, the blades accurately centralize dispersed airflow to the center zone and create extremely high air pressure up to 4.812mm-H2O,while maintaining noiseless operation. The high pressure blade comes from a precision circular arc design which generates high air pressure from the leading edge to trailing edge of the blade. D.F. PRESSURE can offer high air pressure for various of applications, including home PC, gaming PC, workstations and other industrial usage.

User friendly side switch with PWM function
The new positioned side control switch of ENERMAX's patented APS control allows users to adjust their preferred fan "PEAK" speed. The new side switch position is designed for easy cooling modes adjustment and maximize operation safety. The fan will run on a pre-set RPM range of customized performance between performance cooling and silent operation.

ENERMAX's leading edge fan product, D.F. PRESSURE is the ideal choice for your PC radiator, chassis and cooling systems. It will be available in May.

https://www.youtube.com/embed/E1hZy5CTz2s

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I'd like to know the CFM and dB in noise.
 

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Not much for this idea, what would be cool if they managed to put a button that you could press on the center part that releases it so you could clean it although that would be tricky.
 
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I have some twister pressure fans, which these seem to be an evolution/variant of and really like them

Its good that they appear to have moved the max speed switch, on mine its on the back of the centre hub which i cant get to with it in situ

Edit: Twister fans generally have removable fan blades
 
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Yeah i had one with a switch on it and the switch was next to were you screw the fan in which turned out be more of a pain.

How ever this what it's doing is what dust gets in and on the fan blows it back at what it got though which it's not going go back though just blow it around the case.
 

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I'd like to know the CFM and dB in noise.
Actually, the CFM are not as important as this, since these are static pressure fans: 4.812mm-H2O.

the fan isn't on their website yet, so I can't give you any dB info.
 
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I don't get what they were thinking with this. All that does is dump the dust all over the case where it will be sucked right back up into the fans. Maybe if it's an intake fan flush up against the outside of the case it will work but I'd rather clean a filter than have a cloud of dust fly off my PC.
 
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It's a good fan with great features, too bad its construction is wonky (pulled PCB and motor out when I tried removing the rotor as they advertise it as removable (regular Twister Pressure). And it makes really annoying clicking noises as it operates. When system is set up for silence like mine, all such noises are incredibly annoying. I had to resort back to Noiseblocker BlackSilentPro as exhaust fan which is so quiet I have to check it visually to see if it's even spinning...
 
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Obviously, a fan can't reduce the amount of dust in your system (only a filter helps with that). But by running it backwards for 10 seconds, it will reduce the buildup of dust on the trailing edge of the blades, and possibly make it easier to clean. If you're worried about "a cloud of dust flying off my PC", you should probably clean it more often...
 
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Has this been released already in an earlier model, I remember reading about this type of dust free fan a while ago, perhaps another brand?
Makes me wonder how they can patent it.
 
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Has this been released already in an earlier model, I remember reading about this type of dust free fan a while ago, perhaps another brand?
Makes me wonder how they can patent it.
Gigabyte used this on their WindForce cooler graphic cards...
 
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DFR technology makes the fan to spin in reverse action at the highest RPM set by the user for 10 seconds upon startup before it resume to the normal operation.
I like the idea. I like Enermax products. Where I'm seeing a potential flaw in the design is in the speed of the reverse spin action being dependent on the highest RPM set by the user. It would be nice if the user could select whichever fan speed they prefer via the switch, but still have the reverse spin action at the highest RPM the fan is rated for. Though I can't imagine how they would be able to momentarily bypass the switch to accomplish that. It just sounds rather fruitless if you have the fan set to the low or medium speed settings(assuming the same Low Med High peak speed selections as my current Enermax fans). As I can't see those speeds as being sufficient to "free" much, if any, dust from the blades.

EDIT: It appears that what I'm talking about MIGHT be the way they actually do function. The DFR speed MIGHT NOT be dependent on the highest RPM set by the user. Maybe it's just lost in translation. Then again I'm not totally sure what's been lost, if anything. Does 100% Duty Cycle = 2000 RPM? Or does 100% Duty Cycle = 100% x APS? As in 1000 RPM, 1500 RPM, or 2000 RPM? Very confusing.



EDIT 2: Ahhh...now I see! It is FULL rated speed(2000 RPM) for the DFS. Then it DOES revert to APS speed. Damn fine print...

http://www.enermax.com/home.php?fn=eng/product_a1_1_1&lv0=1&lv1=41&no=317

EDIT 3: The what? The first pic works. I guess if you want to see the other one you have to click the link above or here.
 
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Has this been released already in an earlier model, I remember reading about this type of dust free fan a while ago, perhaps another brand?
Makes me wonder how they can patent it.
They can't. This has has been used on fans before.
 
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