What is Asender Engine?

Title of the invention: Continuous Otto piston elliptical engine

1. Field of the invention:
The present invention relates generally to rotary devices, and specifically to rotary engines and pressure and vacuum pumps and compressors and any form that mechanical power is harvested from combusting fossil fuel.

2. Prior art:
A conventional 4 stroke combustion piston in the common engine delivers power every second revolution of the crank shaft, as most engines have at least 120-150 moving parts that need to be separated by oil to operate efficiently, the engine is loaded with frictional loss, heat loss and inertia every revolution, but the power is delivered every second revolution which reduces efficiency of the engine as useful mechanical available shaft power per revolution, the 2 stroke engine can produce one power stroke per revolution but is less power efficient than the 4 stroke engine, the rotary "Wankel" engine has 3 power strokes per revolution and is lighter and has less moving parts compared to the conventional piston engine but is much more difficult to maintain ,produces harmful fumes into the atmosphere due to the incomplete combustion, poor in harvesting the power of the combusted fuel due to the shape of the combustion chamber , problems in seal design and make, the current invention is more like the "Quasiturbine" engine which has 4 power strokes per revolution and delivers much higher power than conventional layout piston engine ,but as the same is difficult in manufacture, less availability of parts, lack of familiarity in maintenance , power lost in rotating the big block of the engine, the indirect combustion force direction in the movement of the engine's moving part, in general all of the rotary engines so far have some or all of the following drawbacks:

• Complexity.
• Many moving parts which consume power as heat and inertia.
• Difficulty in making the seals.
• The longitude shape of the power chamber which is poor in harvesting power from the expanding volume resulting from combustion.
• The power generated in the expanding volume of the gases in the power chamber is not directed into single direction of movement which can be converted into useful mechanical power.
• Not meeting the current emission fume standards in most countries.
• Impracticality in lubricating some parts that have relative movement with each other.
• Heat generated is difficult to cool .(cooling problems).
• New unstudied combustion methods that need a lot of time and research to be practically used and maintained by general public.
• The tedious efforts required in synchronizing many parts of the engine together while running and during assembly.

Summery of the invention: Object of the invention
The object of this invention was to design a new engine concept with an engine that uses the normal 4 stroke Otto cycle piston engine method in converting the chemical energy from the combusting fuel by volume expansion into useful mechanical power which is been widely used, fully studied, and can be considered to be an established art, which would make the production, usage and maintenance of this engine just a simple modification of the shape and layout of conventional engine and its pistons. The way of the layout which is central x shape layout of pistons being back to back with the movement expanding to the sides of a cube in close proximity reduces the bulk of the engine block needed to house them which in turn makes cooling easer and does not keep a lot of heat entrapped in big metal block.