Hi Paul,

 Has anyone any experience with converting a rotary to steam??

 I'm working with a guy who is building a Pietenpol and has built a 3
 cylinder radial steam engine for it. He is a 'traditional' guy and
 whenever I bring up the subject of the Wankel rotary i get subjected to
 a barrage of abuse and negativity. (It wont breathe, the apex seals will
 melt, etc, etc).

 Does anyone have any Ammo I can fire back?? Studies done??

 Thanks, Russ Ward


 The rotary would make a fine steam engine. Every third revolution
 inject water and
 not gasoline. Eliminates the cooling system as well. Patent applied for.

 Paul Lamar


 I wonder if such an engine would be practical. Would water evaporate
 that
 fast?
 We are talking about a few thousand RPM


 GAO, Gordon

 It has been tested in a piston engine.

 "The six-stroke engine is a type of internal combustion engine based on
 the four-stroke engine Four-stroke_engine, but with additional complexity
 intended to make it more efficient and reduce emissions. Two types of
 six-stroke engine have been developed since the 1890s:"

 "The pistons in this type of six-stroke engine go up and down three
 times
 for each injection of fuel. There are two power strokes: one with fuel,
 the other with steam. The currently notable designs in this class are the
 Crower six-stroke engine invented by Bruce Crower of the U.S.; the
 Bajulaz
 engine by the Bajulaz S.A. company of Switzerland; the Velozeta
 Six-stroke engine built by the College of Engineering, at Trivandrum in
 India; and the NIYKADO Six Stroke Engine invented by Chanayil Cleetus
 Anil, NIYKADO Motors, India under patent number IN252642 granted on 25
 May
 2012."

 http://en.wikipedia.org/wiki/Six-stroke_engine


 It is a form of turbo compounding as the otherwise waste cooling heat is
 used to vaporize the
 water and turn it into steam.

 "The enthalpy of vaporization is the energy required to turn water into
 the gaseous form when it increases in volume by 1,600 times at standard
 temperature and pressure; this change in volume can be converted into
 mechanical work in a piston engine and in steam turbines."

 http://en.wikipedia.org/wiki/Steam

 Paul Lamar

 It sounds to my possibly ignorant mind that water injected between the
 exhaust port and the DD15 (?) turbine might be a good location. It
 should be
 fairly simple to implement, cool the exhaust gas for the blades and
 increase
 the gas flow through the turbine. I believe some one might have suggested
 steam erosion of the blades would be an issue but that should apply no
 matter where the water goes in.

 John Gibbons

   I guess one of the first Rotary engines, the design by Umpleby, that is
currently in exhibition somewhere in the UK, was based in the Rotary
Steam machine by Cooley. Attached images are from the Kenichi
 Yamamoto book: 'Rotary Engine', 1981 edition, that is available on the web.
Good weekend, best regards. Salut
        Jose Gros-Aymerich
   Madrid, Spain



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