Roger Gregory <http://en.wikipedia.org/wiki/Roger_Gregory_(programmer)> and I developed an ultracentrifugal rocket engine<http://www.halfwaytoanywhere.com/>that integrated the pump, chamber, nozzle and exhaust bell into a single rotating structure. An interesting feature was the use of Coriolis forces to enhance combustion and vortex flow within the cooling channels to enhance heat transfer. The enormous g-forces not only pumped the liquids to _very_ high pressures (so the nozzle diameter could be exceedingly small resulting in an expansion bell that scaled down to the point that it could be incorporated into the rotating structure), but they served to keep the hottest gasses moving toward the center and away from most of the surface area.
After the dot-con bubble burst and the computer industry was purged of the old-timers like Roger and I, we didn't have the money to continue development and service the international patent fees, so now the patent is abandoned. Since the sources of income guys like us used to have are now occupied by Asians its going to be up to them to develop it. The Chinese won't even have to violate any intellectual property since the patent is abandoned. On Sun, Dec 23, 2012 at 11:27 AM, Terry Blanton <hohlr...@gmail.com> wrote: > Good description here: > > http://www.sae.org/mags/AEM/11560 > > On Sun, Dec 23, 2012 at 12:24 PM, Terry Blanton <hohlr...@gmail.com> > wrote: > > On Sun, Dec 23, 2012 at 11:32 AM, David Roberson <dlrober...@aol.com> > wrote: > >> Does this design technique eliminate the requirement for a liquid rocket > >> engine to have cooling tubes surrounding the chamber? > > > > http://www.google.com/patents/US6865878 > > > > Bigelow's company. > >
