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OPOC Engine


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#1 wrack

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Posted 13 December 2013 - 04:01

Is anyone here following the OPOC engine development? I was following it until 2011 and then got busy in few things and haven't had a chance to do so.

 

http://www.ecomotors.com




#2 +zhiVago

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Posted 13 December 2013 - 08:02

OPOC engines have a whole history of development. They've been thoroughly researched, all their pros and cons are known.



#3 manolis

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Posted 16 December 2013 - 16:12

A look at the PatOP engine at http://www.pattakon....ttakonPatOP.htm may be interesting

PatOP1.gif


or a look at the OPRE engine at http://www.pattakon....attakonOPRE.htm

OPREprotII.jpg


or a look at the PatMar engine at http://www.pattakon....takonPatMar.htm

PatMar_short.gif


or a look at the PatPortLess engine at http://www.pattakon....PatPortLess.htm

PatPortLess_single_balance.gif


Compare EcoMotors' OPOC to anyone of these engines.

Thanks
Manolis Pattakos

#4 OP wrack

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Posted 19 December 2013 - 03:04

Thank you. I didn't know these existed but are any one of them close to reality production as the eco motors one?



#5 manolis

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Posted 20 December 2013 - 06:53

Hello Wrack.

EcoMotors' OPOC is not closer to "reality production" than the mentioned pattakon engines.

There are several difficult technical issues (problems) EcoMotors has yet to address (to solve) before production.

For instance, think about OPOC's lubrication.

The OPOC is a conventional two-stroke engine (actually, it is a pair of Junkers-Doxford

US1679976.gif

sharing the same crankshaft for the sake of the vibration-free operation).

Take the near to the crankshaft exhaust piston of the OPOC.

Its skirt opens and closes the exhaust ports; it also thrust heavily onto the hot cylinder wall above the exhaust ports (there is where the torque is generated); plenty of oil is necessary around the exhaust ports (to avoid scuffing) increasing the specific lube consumption (gr / kWh) and the emissions.

Take also the EcoMotors variable capacity (deactivation of OPOC modules) and compare it to the variable capacity mentioned at http://www.pattakon....takonPatPOC.htm


On the other hand think how close - technically speaking - to production is the PatMar engine of pattakon.
With the proper equipment PatMar could get into production in a few weeks.


EcoMotors has several famous investors (like Bill Gates); all doors are wide open.
For several years EcoMotors has the necessary funds to start producing OPOC engines (did you see one?).
EcoMotors has not a good product to produce and they know it.
The OPOC engine is not yet good enough to compete the existing Diesel Engines.

If I were a big investor of EcoMotors I would seriously consider asking for a license to built PatPortLess engines instead of OPOC engines (they are so similar – take alone the distant piston of the OPOC - and at the same time they are so different).

Thanks
Manolis Pattakos