On 12/26/06, Hoyt A. Stearns Jr. <[EMAIL PROTECTED]> wrote:
It's as if Steorn wants to get the information out, but in such a way that it doesn't invalidate any patents they are seeking.
They might already have patent problems. ;-)
These are constant torque motors, so, ironically, in their simplest embodiment, they would self destruct without a load. The highest power to weight ratio would therefore be a high RPM version. Steorn claims to have a 550 hp motor running.
Yes, hence the advantage of the Sprain approach. We can control the torque by controlling the RPM. The real problem is that most real loads vary immensely. Your typical home has a peak demand of 10 kW with an average demand of roughly 2 kW. Regarding a 550 motor, this means little without knowing their COP. With their stated COP of 2.3, one might assume that almost half of the power is consumed internally. Terry

