cvtrian Posted December 22, 2014 Report Share Posted December 22, 2014 I was recently sent this and thought it worth sharing. Should be some interesting developments......... Regards Ian Quote Link to post Share on other sites
Chris59 Posted December 22, 2014 Report Share Posted December 22, 2014 (edited) The engine component (and block ?) are rotating, not the "head", so how do they solve the problem caused by the "engine to head" joint ? Edited December 22, 2014 by Chris59 Quote Link to post Share on other sites
RogerH Posted December 22, 2014 Report Share Posted December 22, 2014 Hi Chris, I think there is an 'internal' block containing the pistons that sits inside an external block that has the head attached. The internal block and external block would need to be sealed somehow (that's the clever bit) - haven't a clue. Roger Quote Link to post Share on other sites
BlueTR3A-5EKT Posted December 22, 2014 Report Share Posted December 22, 2014 A very clever development of the axial or swash plate pump as patented by Lucas Aerospace - Design as used for the engine driven constant pressure variable displacement HP fuel pump on the Rolls Royce Dart Turbo prop. c 1950's http://en.wikipedia.org/wiki/Axial_piston_pump http://www.google.com/patents/US4999020 http://www.flightglobal.com/news/articles/lucas-eyes-military-power-by-wire-applications-14379/ Cheers Peter W Quote Link to post Share on other sites
pfenlon Posted December 22, 2014 Report Share Posted December 22, 2014 These swash plate Hydraulic pumps were used in many walks of life, in the crane industry they were used on Hoist motors at the "high" end, i.e. very expensive machines. Known as piston motors they were very efficient, much more so than vane or gear pumps, but were also very very expensive to manufacture. Nice idea though............................. Quote Link to post Share on other sites
RogerH Posted December 22, 2014 Report Share Posted December 22, 2014 Looking at the fixed valve holes in the head reminded me of the spherical valve concept http://www.coatesengine.com/csrv-advantages.html This is quite an old idea - 1930's Lanchesters etc - but these guys appear to have cracked it. get rid of all that horrid valve gear and springs. Roger Quote Link to post Share on other sites
stuart Posted December 23, 2014 Report Share Posted December 23, 2014 This design has been floating around for quite a few years but as stated very expensive to produce and I believe in combustion engine form there is an inherent weakness somewhere that they have yet to solve hence why there arent any more than prototypes running around. Stuart. Quote Link to post Share on other sites
john.r.davies Posted December 23, 2014 Report Share Posted December 23, 2014 Swash plate motors are common in hydraulic "hydrostatic" motor mowers, because the transmission is just a pair of hoses, and no need for a gearbox. But for alternative ICE designs, the Wankel/Mazda rotor was much simpler. It went out of production because in that iteration, it could not pass US emission standards. Mazda are said to be still working on the next stage. John Quote Link to post Share on other sites
mleadbeater Posted December 28, 2014 Report Share Posted December 28, 2014 Always interested in developments in IC engines, as always there are few totaly new ideas: Good luck I say. I like the following idea, a doouble expansion IC engine, I was wondering for a bit of fun as a project to try to make one from a 4 cylinder engine: There is a company recently developing this with 3 cylinderss, just can't seem to find their site, any ideas? Mke Quote Link to post Share on other sites
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