FR2748775A1 - ROTARY EXPLOSION ENGINE OF WHICH ALL MOVING PARTS DESCRIBE CIRCUMFERENCES AROUND FIXED AXES IN A MACHINING BLOCK ENGINE SIMPLER THAN THAT OF CLASSIC "BEAU DE ROCHAS" ENGINES - Google Patents

Abstract

The invention discloses an internal combustion engine that has nothing in common with any known internal combustion engine since it does not follow the constant volume cycle and all its mobile elements execute a circular rotation. The displacement of the rotary pistons (1) and the combustion of the air-fuel mixture take place in 8 chambers (2) formed, in the ring-shaped volumes of toroids (3) in star arrangement, between these pistons and an obturating disc (4) whose plane is perpendicular to the circular rotation axes of the pistons, protuberances of the rotors (5). This disc turns synchronously with the pistons and has a notch (6) that allows pistons to pass successively after the explosion to complete their rotation and to come once more in the volume-forming position required by the explosion chambers. The chambers are permananetly supplied with compressed air at the required pressure. At each rotation an injector (7) vaporises the fuel at the place provided for the explosions, and the spark of an ignition plug (8) fed by a flywheel magneto fixed on one of the four driving shafts provokes the explosions at the appropriate times.

Description

The present invention relates to an internal combustion engine which has nothing in common with the conventional four-phase engine called "Beau de Rochas cycle" whatever its type, four-stroke cylinder and piston or two-stroke Dai mixture of the four phases, rotary or any other combination.

It took many years of research to remedy the ovalization of the cylinders by lining them, to find a form of light rod after having finally realized that its mass was the cause of frequent breaks and to manufacture it in a material which allows to resist the constraints created Jar the linear movement alternation of one of its ends and the rotational movement of the other and also give a massive shape to the crankshaft to remove the flywheel originally used.

In the internal combustion engine object of the present invention there is not an explosion for two crankshaft revolutions or an explosion per revolution but several explosions per revolution, without jacketed cylinder, without crankshaft, connecting rod or valves. All the moving parts that compose it are driven in a circular rotation movement around fixed axes in a simple factory stator. Centrifugal force generated is used for modest lubrication
fication and for sealing. All the problems inherent in the principle of the conventional internal combustion engine are avoided (, the result is obtained by a mechanism the principle of which is illustrated by FIG. 1 which schematically represents a circular chamber (2) which is
lc annular volume of a species of fixed torus (3). A partial cut leaves.-Utr a rotor (5) whose piston (1) is integral. This piston therefore makes you complete rotation. The shutter disc (4) closes the chamber, but it has a notch (6) to let the piston pass each revolution.

The notch and the front face of the piston come out machined and bevel to avoid unnecessary volumes.

 It is obvious that a single shutter disc can serve several rooms.

The chambers being fixed and the pistons integral with rotors, by definition in rotation, only the peripheral part of the chambers is fixed, the rest (st formed by the rotors shot accordingly. The curved profile of their
circumference matching the circumference of the obturator disc. Given their common axes, sealing is easy to obtain - with appropriately shaped segments aided by centrifugal force.

 i, f's tors e lc shutter disc are coupled by angle gears ensuring perfect synchronism.

hen, after the passage of the piston through the notch, the disc closes the chamber, a closed volume is formed between the disc and the piston.

The chamber being permanently supplied with compressed air at the pressure required by the hollow axis of the obturator disc, to obtain an explosive mixture it suffices to inject the fuel into this closed volume of compressed air. The ignition is obtained by a candle powered by a magnetic flywheel fixed on one of the shafts, synchronism being thus ensured.

the same is true for the injector control.

After the explosion the piston completes its turn by expelling the previously burnt gases and it finds itself, after having passed through a notch, in the position of formation of the volume required for a new explosion and the cycle continues ...

A single shutter disc that can serve several rooms, in the prototype of Figure 2 there are 8 which are, therefore, arranged in a star.

The shape of their section is a trapezoid with curved bases, the large base matching the circumference of the obturator disc and the small one having a rounded shape giving the trapezium a compact surface. The two rectilinear sides are radii of the distributor disc, in the case of 8 chambers they form an angle of 15 degrees.

These 8 chambers, the bearings of the rotors, the housings containing the gears are obtained by "shell" molding, that is to say with a simple two-part ioule (such as a waffle mold) made of a suitable metal or synthetic material, two flanges which, assembled after rectification, form a closed volume in which the compressed air supplying the chambers enters through the hollow shaft of the obturator disc.

 your 8 rotors are coupled by 8 angle gears, 4 of which (1 of 2) have intermediate gears which allow the 4 motor shafts to exit perpendicularly. These 4 shafts are coupled to the central shaft of the distributor by toothed wheels which have all 5 the same dia between.

The lubricating oil of the bearings and gears circulates from one crankcase to another by the hollow shafts of the rotors carrying the pistons. The faces of these rotors are machined so as to be as many centrifugal pumps ensuring the circulation of this oil.

Compressed air is obtained by a compressor of any type woven by the engine and it is stored in a tank at a pressure higher than the operating pressure. This high pressure ensures the) start-up by operating the injector pump and the magnetic flywheel of the ignition.

Claims (1)

 Ir Rotary explosion engine characterized in that it has chambers  annulars (2) in which pistons (1) rotate with a movement  continuous circular. Explosions occur successively in each of the closed volumes formed between each piston and a synchronized common obturator disc (4) which closes the chambers and has a notch (6) which lets a piston pass after each explosion so that it completes its turn, finding the position which forms the volume required for the next explosion.