Mailing List flyrotary@lancaironline.net Message #32654
From: jesse farr <jesse@jessfarr.com>
Subject: Fw: [FlyRotary] Re: - piezo ignition
Date: Wed, 12 Jul 2006 09:30:59 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Maybe us jokers are not too terribly far off after all. It seems like such is being worked on right now, even as we hunt and peck. Oh well. Now why can't that also be set up to operate fuel injectors where Ed can then just use his cell phone, gravity feed tanks and an inertia starter. <g>
jofarr, soddy tn
 
>>>  Midé Technology Corp. in Boston is currently developing an innovative Piezo-electric Ignition and Sensing Device (PISD) under a Phase II sponsorship from a NASA Glenn Research Center Small Business Innovative Research (SBIR) Program (Contract No. NAS3-98054). The patented invention (US Patent # 6,138,654) is a device that allows pressure increases in the cylinder of an internal combustion engine to strain piezo-electric elements. This strain generates a voltage across the poles of the piezo, proportional to the change in cylinder pressure. The voltage increases until it is sufficient to create an ignition spark between the two electrodes of the spark plug. A separate electronic controller, that monitors the voltage output from the piezo, controls the spark timing. After ignition, the piezo continues to strain due to the rapid increase in pressure during the combustion process. Sensing the piezo voltage output after combustion provides valuable information on the combustion cycle and may identify anomalies such as pre-ignition, knock and misfires. <<<
 
----- Original Message -----
From: jesse farr
 
 I thought that was to just indicate to us that you were piezoing on our leg just a little. But, who knows, next week, the Dube may tell us how it can be done, now that you have broached the subject.
jofarr, soddy tn
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