World best (attached)

[DaS Energy]

 Hot refrigerant gas turns into cold liquid when pressured through a restrictor to depressurize.
Fridges use this great effect by forcing the refrigerant to pass through a tiny whole to depressurize.
While this is great for making things cold it's even better in a thermal engine.
Firstly for the great forces that can be brought bear on a piston or turbine.
Secondly because the liquid returns colder than what it was originally and this done without aid of any cooling device.
No engine in the World can come anywhere near DaS engines for power to size.

Benefits of DaS

DaS is the first thermal engine active at a heat of -40*Celsius.
DaS is the first thermal engine using a freezer and a refrigerator as preheaters.
DaS is the first thermal engine using exactly the same force to push the piston out then push it back again with equal opposite force.
DaS is the first thermal engine to have valves that connect to nothing, plus have solid piston of no friction.
DaS internal combustion Engine is the first to have solid piston of no friction and non-connected valve. 
DaS internal combustion Engine is the first to have tripled the power by use of byproduct Superheated Steam.

Thanks to Das free energy only needs a casing no matter the engine sizing or power needs.

[tinman]

Hot refrigerant gas turns into cold liquid when pressured through a restrictor to depressurize.
Fridges use this great effect by forcing the refrigerant to pass through a tiny whole to depressurize.
While this is great for making things cold it's even better in a thermal engine.
Firstly for the great forces that can be brought bear on a piston or turbine.
Secondly because the liquid returns colder than what it was originally and this done without aid of any cooling device.
No engine in the World can come anywhere near DaS engines for power to size.

Benefits of DaS

DaS is the first thermal engine active at a heat of -40*Celsius.
DaS is the first thermal engine using a freezer and a refrigerator as preheaters.
DaS is the first thermal engine using exactly the same force to push the piston out then push it back again with equal opposite force.
DaS is the first thermal engine to have valves that connect to nothing, plus have solid piston of no friction.
DaS internal combustion Engine is the first to have solid piston of no friction and non-connected valve. 
DaS internal combustion Engine is the first to have tripled the power by use of byproduct Superheated Steam.

Thanks to Das free energy only needs a casing no matter the engine sizing or power needs.

DaS has a preaty picture.
Could Das free energy please provide a video of a working modle,with P/in and P/out measurement's?.

Edit:-oh i forgot to mention-Das isnt the first to do  this.

[DaS Energy]

Hello Tinman,
Those who wish may copy, full blueprint accompanies each post, we are not in the movie business.         
Do you have a name to any engine you cite in your edit, we would be most pleased to hear of it!.  Edit:-oh i forgot to mention-Das isnt the first to do  this.   

[tinman]

We would be most pleased to hear of it?
Are you/we a company? Are you promoting a product?
I have to ask-if you have no video of a working device,dose this mean you have no working device?
Is your design based on theroy,or a working modle that potential builders could see?.

If you replace your turbine with a pistion powered engine,then you have a dennis lee heat pump engine. Although he was jailed for other scam's,this was one of his last design's,and it actualy worked. Later patented by a reputable company,and then licenced out to ther companies that were in the refridgeration game.
The patents are there to view,just do a google serch.
http://www.youtube.com/watch?v=31HoQ4rGdBc

[DaS Energy]

Hello Tinman,

Thank you for the video. I give the chap his due for thinking but as you can see so many mechanical parts make it extremely inefficient especially in using multiple metal pistons,  and as you have heard such extreme of temperature.         "Are you/we a company? Are you promoting a product?"   We are two companies!  No! we are not promoting a product.   
We are posting for free uptake to those who wish to.
"I have to ask-if you have no video of a working device,dose this mean you have no working device?' No!
"Is your design based on theroy,or a working modle that potential builders could see?". Working model! Yes! but to purchasers not free builders, they have the blueprint which includes everything, commercial realities still have some play.

"If you replace your turbine with a pistion powered engine,then you have a dennis lee heat pump engine"  NO! Far far from it, dennis lee engine only similarity is the use of a refrigerant gas (now banned world wide) which is far less effective than CO2 and an expansion chamber.
We do not normally correct others, leaving them to discover for themselves however we are grateful that you posted what you thought may be a contender engine unknown to us.
One piston example is attached. Note the expansion chamber/cooling is not included due to paper sizing, however it sit directly above the exhaust port which also is its refill point!
Do you wish to build?