Bolt wrote:Good evening
Here they also eliminated the valves, don't they have other more difficult drawbacks to solve? To be continued
bolt
Good evening
Are see Aspin engine in my history.But this carbon ....
andrew
Paldeolien wrote:
To understand the phenomenon of inertia one must do simulations on computer and see how a motor behaves by watching it work with slowed images.
Yes OK but these simulations start from a mechanical principle. This is what I would like to understand: what mechanical principle makes the inertia of an engine the biggest problem? A tractor engine has a big inertia but remains the best engine usable for agricultural work. My diesel engine has more inertia than other engines but is still very usable (especially given the low speeds generated).
Which simulator do you use?
I understood a lot by doing this and in any case, a parts like a rotating (heavy) crankshaft that is not perfectly balanced is a great big problem.
OK but between the dynamic balance of a rotating part and its inertia is not the same thing. A room can have a huge inertia (a car wheel for example) and stay perfectly balanced.
In addition it is hyperstatic when multiplying the number of pistons.
????? Hyperstatism is when the same degrees of freedom are blocked several times. What degrees of freedom "desirable" to the proper operation of the engine can one block by multiplying the cylinders and pistons?
And then anyway, it's not and it will never with a classic crankshaft that the engines will be powerful.
For the moment, the experiments that I have seen are essentially focused on this type of engine. The other methods are sometimes even theoretical (I think of engines without connecting rod for example).
What makes the power of an engine is the distance between the crankshaft and the connecting rod, and the greater the distance, the greater the output torque. The lever arm increases the force.
Yes but it also means a low rotational speed with possibilities of filling the cylinders not always optimum (speed of the gases). The same principle is found in cycling where, theoretically, the longer the cranks are, the greater the force to the rear wheel is. The condition is that the legs can be turned very quickly and the muscles do not develop at The infinite!
Bolt wrote:Good evening
Here they also eliminated the valves, do they have no other disadvantages more difficult to solve? to be continued
http://www.rcvengines.com/pdf_files/pr/technologypack-feb06.pdf
bolt
Philippe Schutt wrote:what about the large dead volume at the time of the passage from the end of the exhaust to the beginning of the intake?
In fact, the 2 small pistons are moved back more than half their stroke, which means that the cylinder does not empty completely. basically it must be within 30% of the displacement!
then, but not insoluble, lubrication and tightness of the high pistons, see position of the scraper segment on the animation. oil consumption?
And lastly wear on the lights, low engine life, like the 2T.
I like the photos of pistons, but has anyone seen such a short piston?
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