Air-cooled heat exchanger (ACHE) drives can spin backwards when fans
are off but subjected to air movement across the fan blades. This is known as
back-drafting or wind-milling and can be dangerous. Technicians are often in
close contact with the drive, and in extreme situations bodily damage occurs
due to back-drafting. DraftguardTM anti-rotation device secures the drive from
spinning backwards during maintenance operations. Draftguard also protects the
entire system from extreme shock load which causes unnecessary wear of the
motor components and which can lead to belt breakage. Often design engineers don't consider the effect a drive which rotates
the opposite direction causes. Draftguard protects the drive from damage, or
other unsatisfactory events from occurring, when units back draft. The design of the flange plate allows
Draftguard to mount on nearly any bushing or shaft which eliminates the need of
retrofitting drive components. Gates Draftguard can be mounted to prevent
rotation in either the clockwise or counter clockwise direction. It can easily
be mounted on either vertical or horizontal shafts and typically fits within
the existing fan cage.
As energy efficiency becomes more and more a concern for makers of electronics devices, researchers are coming up with new ways to harvest energy from sound vibration, footsteps, and even electromagnetic fields in the air.
The government wants to study your brain, and DARPA wants to use similar information to give robots true autonomy beyond any artificial intelligence developed to date. Sound like science fiction? It's not.
From Dell / Intel® New Paradigms in Design Work Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013 3
Early in my career, I worked as a draftsman and remember the days of drawing on vellum with numbered pencils and Mylar with plastic lead. This was a fun experience in the sense that I ...
I've been using workstations for more than 10 years and love finding ways to get more performance from my system. With demanding professional applications that require more power each ...
A lasting memory from my first job as an engineer in an auto assembly plant is standing on hard concrete at six in the morning, vending-machine coffee clutched in hand, listening to ...
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
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