richard@gryphon.COM (Richard Sexton) (10/08/89)
In article <3193@quanta.eng.ohio-state.edu> BRIDGE@rcgl1.eng.ohio-state.edu (JOHN BRIDGE) writes: > > Nice report, Richard. Could the compressor brand be Gast? Yup. >They >make some very nice oilfree rotary vane compressors powered by 1/8 hp >electric motors. The vanes are graphite with stainless steel housings. >They come on the market as industrial and military surplus once in a >while. I bought one for $10 (original cost must have been $200 or $300). Yes, mail order they are $350. I can get one for $300, but if you say they can be had as surplus for cheap all the better. My real problem though is energy usage. If the things draws 2 amps or so, it's gonna cost me a forture (when you have kids, $30 a month IS a fortue, believe me) to run and I justcan't have thet. Now, what if I were to concoct a motor assemble that used, instead a DC brushless motor. Anybody have any rough ideas as to how much less power this was use ? -- Help wipe out BBQ ligter fluid in your lifetime richard@gryphon.COM decwrl!gryphon!richard gryphon!richard@elroy.jpl.NASA.GOV
BRIDGE@rcgl1.eng.ohio-state.edu (JOHN BRIDGE) (10/08/89)
Richard,
Unfortunately a bunch of my students are tearing my pump apart to
see what makes it tick so I don't have it at hand. At 1/8 hp I believe
the amp rating is much less than 2 amps, however. Convert the hp to
watts and divide by 120 -- should be fairly close.
If you need that much air it would be cheaper than an equivalent
number of vibrating pumps. John