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Opposed piston engine

Category:

Science & Technology

Tags:

• engine

[d3dhemmer]

Yes you are right! The Junkers people have invented all this some time ago,

You can optimize it if you like by using this software online.

diesel-rk.bmstu.ru/Eng/index.p­hp

if you find some interesting news, we are happy to hear from you.

[d3dhemmer]

no, you have to download vid

[drumbrains]

WOW. I designed an engine like this, two pistons sharing the same combustion chamber. I didn't realize it was already made.

[d3dhemmer]

it is more than 100 years old, used in gasengine first, have a look on opposed piston ingines, or Hugo Junkers history, ecomotors is one of the new companies but you can find more......

[carpidiem123]

lol what happens if there is a miss fire

[dajsinjo]

Opposed piston engine has less surface for same bore-stroke dimensions (because there is no head) that means less cooling and better efficiency , two stroke is also advantage

[geoffers976]

Tilling Stevens produced an engine like this in the 1970s - the TS3. 3 horizontal cylinders with the crankshaft at right angles and beneath them. Six con-rods from the crank operated rocker arms to which the pistons were attached. A Rootes lobe-type blower supplied the air. The engine was very compact, but too many bearings caused some loss of efficiency, Also, machining of the liner and crankcase water sealing diameters was problematic as all dias had to be stepped to allow for insertion .

[knowledgemonger]

@DrifterToo You are right about the phase issue. The phase needed is a small one but doesn't appear to be done in the video. Another way to go is to have the exhaust port higher up. This also seems not to be shown in the video but basically goes like this.

The exhaust port opens and causes a shock wave to go out the exhaust port. The intake opens and air passes all the way though the chamber. A reflected wave comes back up the exhaust and returns some air into the chamber.

[DrifterToo]

Nice computer work, but you've missed the essence of the engine. The cranks have to be out of phase so that the exhaust ports open first, dropping pressure in the cylinder. Then the intake ports open allowing air in and forcing the remaining combustion products out through the exhaust ports, then the exhaust ports close, then the supercharger pre-presurizes the cylinder, then the intake ports close, and the pistons come together compressing the air. Finally fuel is injected.

[hoplageis57]

@MRNOname608

OP engines are so cheap and promiseful and easy to built, even with a direct injection system, they will throw away hundreds of complex and expensive concepts right to the dust bin in the future. I have a concept that can fit in a motorcycle frame, I just patented it. Should be very light and green too. But wait a little, the whole stuff in still under study

[MRNOname608]

@hoplageis57 T-64 :)

[hoplageis57]

@d3dhemmer Opposed pistons engines are very efficient and this idea was patented in 1860. Uniflow scavenging is ideal and allows supercharging. And you can be sure this architecture will come back soon.

[hgfjtdjhtd687369876]

can u send me that animation? Giel_Knip@hotmail.com

[johnpetermalcolm]

Rolls Royce produced a 6 cylinder version (K60), which was fitted in the FV432.