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OT: OPRE Tilting engine

manolis

Aluminum
Joined
Nov 25, 2006
Location
Athens Greece
Hello all.

Here is a 2-stroke opposed-piston pulling-rod engine:

OPRE_tilting_prot_1.jpg


333 cc,
bore 84mm,
stroke 30+30=60mm
(same bore to stroke ratio with BMW's boxer R1200GS of 2013)
weight: 8.5Kp (19lb) without the exhaust pipe and the carburetor
height: 250mm


Here are two animations showing its moving parts:

OPRE_tilting1.gif


OPRE_tilting2.gif



The Pulling Connecting Rods substantially increase the "constant volume portion" of the combustion (efficiency).

The tilting valves at the smal ends of the connecting rods control (in a highly unconventional way) the gas flow.

For more details: http://www.pattakon.com/pattakonTilting.htm


The moving parts:

OPRE_Tilting_1.jpg


OPRE_Tilting_2.jpg


OPRE_Tilting_3.jpg


OPRE_Tilting_4.jpg


OPRE_Tilting_5.jpg


OPRE_Tilting_6.jpg


The above tilting valves have "rectangle" shape for the shake of the easy / accurate manufacturing with a lathe.


And here are two youtube videos of the engine (manual cranking).



Thanks
Manolis Pattakos
 








 
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