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 Features
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History
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- By David_W @Mar 05, 2012
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- HIGH-VORTEX-AIRFLOW WITH TURBINE BLADE & FRAME PATENTED DESIGN
- Optimum airflow, air pressure & extremely silent performance
- DIVERSION GROOVE BLADE DESIGN
- Innovative blade design focus air flow & optimum cooling efficiency (Patent)
- ANTI-VIBRATION PAD DESIGN
- Reduce the vibrations efficiently & silent operation
- AERO-DYNAMICAL DESIGN
- Air-inlet with optimal aero-dynamical design reducing noisy air turbulences
- HYDRO-DYNAMIC-BEARING TECHNOLOGY
- HDB runs more smoothly with no friction, make it quietly & durability(MTBF300,000hrs)
- TOOL-LESS FIXED PINS
- Rubber fixed pins also reduces vibrations (fan run more quietly) and Tool-less makes it easy to mount, with no tools required
Optimum airflow, air pressure & extremely silent performance Innovative blade design focus air flow & optimum cooling efficiency (Patent) Reduce the vibrations efficiently & silent operation Air-inlet with optimal aero-dynamical design reducing noisy air turbulences We defined HDB to Hydro Dynamic Bearing. An oil seal design that has a higher reliability and advantage than conventional fan motor design.
1. High revolution precision, low vibration noise
2. Fluid seal design provide extremely long life span
3. Surface tension effect, runs more smoothly with no friction, extremely quiet
Fluid seal design is achieved through the use of oil surface tension and hydrodynamic pumping forces provided by grooves. Bend area is centralized oil and prevented oil leakage out of motor (oil leakage is main problem of sleeve bearing, short life time) . Friction between shaft and HDB will be down due to herringbone structure reaction(friction between the metal is disadvantage of ball bearing, noise & waste heat problem). So HDB conquer sleeve & ball bearing disadvantage to become more reliable & quiet technology for Top-notch fan. Such design concept is successful and applicative on HDD, and we can see a reliability application in it. HDB, Ball, & Sleeve comparison | Sleeve | Ball | Hydro-Dynamic | revolution precision | mediocre | good | best | vibration noise | mediocre | loud | quiet | life span (hrs) | 30,000 | 50,000 | >150,000 | waste heat | high | high | low | Cost | low | high | high | HDB Design Principles  - Oil surface tension and hydrodynamic pumping forces provided by grooves, no friction, extremely quiet
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Specifications
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- by David_W @Mar 05, 2012
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Model | CF-V14H | CF-V12HB |
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Marketing name | VORTEX HDB 140 | VORTEX HDB 120 | Dimensions | 140 x 140 x 25 | 120 x 120 x 25 | Speed | 1200rpm | 700rpm
(w/ adapter) | 1200 | Air flow @ 12V (CFM, m3/h) | 70.5 / 119.8 | 55.5 / 94.3 | 60.4 / 102.6 | Air pressure @ 12V (mm H2O) | 1.38 | 0.74 | 1.73 | Noise | 19.2dB | 16.4dB | 17.7dB | Bearing type | HDB (Hydro-Dynamic Bearing) | Connector | 3pin | Cable length | 450 | Cable sleeve | Yes | Accessories | 3 to 4pin adapter | 3 to 4pin adapter | Fan speed adjustable cable | Tool-less fixed pins | Tool-less fixed pins | Screws | Screws | | Carton | Color box with PVC window | Lifetime L10 (hours / 25°C) | 300000 |
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