Founded in 2002, isomo.de
new technologies, people and nature.
Georg Holzknecht
Gleichförmigkeit, Einklang mit der Natur sowie Bewegung und Antrieb kennzeichnen den Charakter unserer Entwicklungen und Erfindungen.
WELCOME
isomo.de is performing research on spark ignition and diesel engines, with a completely new approach..
Normally, all theoretical efficiency improvements by varying engine cycles will get minimized with the real design considering engine structural and fuel combustion limitations. Engine construction materials, chemical and physical air-fuel mixture properties are the constraints decreasing high efficient power output.
Another limiting point in the development of piston engines is the transformation of combustion chamber pressure into mechanical power output. The expansion of the pressure runs with linear movement of the piston which is transformed into rotation of the crank-shaft. The piston position in the cylinder defines the combustion chamber volume. It varies dependent from the crank-shaft angle. The minimum and maximum volume during one cycle are constant for any load of the engine. This results in one optimal operation point with the highest thermal efficiency. Acceleration and deceleration of the engine means leaving the optimal load. However, engines are designed to be near the optimal point of operation for a dedicated application.
How to realize a more efficient engine cycle?
The practical way of thinking currently used to achieve highly efficient engines with a fixed geometry, defined by the docking between piston and crank-shaft, needs to be disregarded to make way for a completely new approach in engine construction.
Our procedure to achieve this:
• design the most efficient engine combustion cycle regarding completely "iso"chor combustion with possible stepwise expansion for better mixing and combustion reasons.
• design an engine with a varying intake/combustion volume for every point of operation.
• reduce the consequences and limiting factors such as material issues, power density and cycle control procedures.
Behind all these above mentioned steps stands a realistic technical solution concerning thermodynamics, power transformation and control elements. But now we have reached the point where private research is going to be approved in (a) more funded institution (ohne s). A best efficient engine cycle with these new boundary conditions has to be developed and simulated. The outcome will be a set of parameters like maximum temperatures, pressure etc., which are needed to evaluate the physical construction. Finally in conclusion, control procedures and power consumption of auxiliary units have to be optimized to realize a first prototype.
Apart from the way to get there, there are so many other advantages hidden in this concept.
Please contact us for further information.