FR2617905A1 - Heat engine with circular movement - Google Patents

Abstract

The invention relates to an engine allowing a source of energy which is supplied to it to be converted into mechanical work. In the present case, the engine consists of two modules A and B. Each of the modules is provided with two cylinders c1, c3 and c2, c4, with two pistons p1, p3 and p2, p4 and with a connecting rod crank shaft bb'. The production of the movement takes place by explosion of a mixture in succession in one of the previously mentioned cylinders. The explosion of this gaseous mixture gives rise alternately to the circular displacement of one of the modules A and B. The device according to the invention is particularly intended for motor vehicles.

Description

The present invention relates to a heat engine with circular movement.

- rivers embodiments of an internal combustion engine comprising an internal combustion system have been developed in the past. In particular, the conventional four-stroke petrol engine is known, the fuel of which is sprayed very finely and mixed with the air forms a combustible mixture which is introduced into the cylinder. Then the mixture ignites after having been previously compressed it is the explosion. The mixture relaxes while providing the effort.

- Similarly, we know the diesel thermal engine whose direct injection operation is entirely based on the self-ignition of the fuel in the air strongly heated by compression.

- We also know about the two-stroke petrol engine whose originality is the absence of a valve. For this motor, the distribution is most often carried out by lights which are released or closed by the piston during its reciprocating movement.

- These three heat engines have in common a large number of elements: the cylinder, the piston, the connecting rod, the crankshaft and the reciprocating movement of the piston. All the parts - piston, connecting rod, crankshaft are hinged together.

- Finally, we know the Wankel engine or rotary piston engine. It is very simple since it comprises only two moving parts animated by a continuous circular movement and no part animated by an alternating movement.

- The object of the present invention is to produce a four-stroke thermal engine with circular movement. In particular, this engine does not have a return movement of the piston. Each of the four times of said circular motor causes the rotation of one of the modules over the course of a fraction of the circumference.

- To achieve this result, the circular thermal engine according to the invention proposed in the attached cross-section diagrams, is a four-stroke petrol engine for energy source.

The main elements of the said invention are: 7) the cylinders ci, c2, b3, c4 (FIG.I in section) These are cylindrical tubes countered concentrically to the x axis open in their lower part. They can be put in communication by appropriate openings oo ', either with an energy source or with the atmosphere. Their purpose is to serve as a gas enclosure from 1R energy source. In the present case, the cylinders are four in number c1, c2, c3, c4. They are connected two by two cl + c3 and c2 + c4 to the x axis by connecting rods-crankshafts b and b '.

2) Pistons pl, p2, p3, p4 (FIG.1). These are cylindrical parts bent concentrically with the x axis. The pistons are integral in their lower part s with the upper part of the cylinders r (the ovulasse). They slide inside the cylinders. The upper face of the pistons is subjected to the thrust of the gases which they transmit to the connecting rods-crankshaft b and b 'to which they are connected and fixed.

The connecting rods-crankshaft b b '(FIG.1). The shape of these parts is fundamentally different from that of traditional heat engines.

The elements connecting rods and crankshafts Merging to form only one piece: the connecting rod-crankshaft b b '. This element serves as a link without articulation between the x axis and the cylinders.

There are two connecting rods-crankshafts for the other cylinder engine shown in Figure 1.

The distribution
The distribution is very similar to traditional heat engines.

The valves oo '(FIG.1).

The purpose of the valve is to allow proper opening communication with 'energy source o and exhaust o'. Their opening is controlled by the rocker arms u u ', the rocker rods t t', the pushers g g 'and the cams m m'. The setting in motion of all of these elements is caused by the cams distributed on the steering wheel v.

Non-return element or ratchet h (Fiv. 1)
As its name indicates this element has the function of preventing the return (backward) of the cylinder and by this fact of the whole module at the time of ltexplosicn
Only one piston will advance over the distance of its stroke. The ratchet imposes on the modules an interrupted circular movement. The pawl can be positioned at various locations on the circular heat engine either - on the x axis - on the timing wheel v - directly on the periphery of the cylinders.

General principle of movement production in the circular heat engine (FIC-2,3)
We have seen that the organs of the circular thermal engine are cylinders cl, c2, e3, c4 pistons p1, p2, p3, p4 and connecting rods - crankshaft b b '. All of these elements are assembled so as to form modules. In the present case two modules are necessary for the operation of said circular motor. Each module A and B is composed of two cylinders ci + c3 and c2 + c4. two pistons pl + p3 and p2 + p4 and a crankshaft connecting rod b b '.

All of these elements are integral and fixed with respect to each other for the same module. There is no articulation for the same module.

By the presence of the non-return pawl on the cylinder c2, it is understood that if one exerts a pressure E (explosion) (FIG. 4) on the upper face of the piston p2, it will drive in a circular movement, on the distance of its course, the entire module t. This circular movement will simultaneously cause: - a vacuum (gas intake) in the cylinder c4 - compression in the cylinder cl - pressure (exhaust) in the cylinder c3.

The single stroke of piston p2 prepared the displacement phase of module B.

The circular displacement will take place as soon as the pressure E of the explosion takes place on the upper face of the piston pl (PIC.5). This circular displacement caused by the explosion, will entrain again and simultaneously in one of the cylinders: the admission, the compression and the exhaust. And so on (PIG. 6,7).

The name of explosions to achieve a complete revolution of a module is variable because it / function of the piston stroke.

The piston stroke can vary depending on the torque sought by the manufacturer.

Variant of the invention (FIG, B)
According to a variant the cylinders and. pistons can be straight and arranged around the x axis. The drawing FIG.8 illustrates the invention in section.

This modification requires the presence of a connecting rod f located between the piston and the connecting rod-crankshaft. The operating principle remains unchanged compared to the circular thermal engine presented above.

 ~ This modification has the advantage of simplifying the production and the experimental construction of the engine by the fact that it does not require the manufacture of curved cylinders and pistons.

- The circular thermal engine system which is the subject of the present invention can equally operate with an energy source: petrol, gas oil, liquid petroleum gas (CPL), etc.

The circular heat engine shown in the different diagrams works with the two modules A and B and four cylinders. According to a variant, the motor can be provided with several modules on the same axis. Example: 3 modules with 6 cylinders, 4 modules with 8 cylinders, etc ...

The present invention can also operate as a two-stroke or four-stroke engine with a light intake system.

The invention having been explained and its interest justified in a few detailed examples, the plaintiff reserves exclusivity for the entire duration of the patent without limitation other than that of the terms of the claims below.

Claims (1)

 CLAIM  The general principle of operation of the circular thermal engine is tracted in that it comprises cylinders and curved pistons (or an) arranged concentrically to the x axis. The production of the movement is based on the compression and the explosion of a 'z successively and inside one of the cylinders. ) Device according to claim 1 characterized in that the movement zs modules A and B is circular Rutour of the x axis. ) Device according to claim 1 or claim 2 characterized in> that the movement of the modules does not include a return phase or a real reciprocating movement. ) Device according to any one of the preceding claims, characterized in that the modules A and 3 while being composed of several Elements (cylinders, pistons, crankshaft connecting rods) form a single part without articulated element (with the exception of the cy engine variant Lndres straight comprising a connecting rod f presented fig. B). ) Device according to any one of the preceding claims characterized in that the distribution is triggered by the canes mm 'distributed the flywheel v.