FR2487001A1 - Rotary piston IC engine - has reciprocating blade between inlet and outlet ports, also sealing blade on eccentric circular piston - Google Patents

Abstract

The rotary piston engine has a circular piston (2) eccentrically mounted on a driving spindle (3) inside a circular combustion chamber (4). At the point of contact (B) of the piston with the rounded inside surface is a sealing blade. Adjacent to an inlet chamber (8) near the top is a vertically reciprocated dividing blade (6). This separates incoming fuel from the inlet chamber from an outlet chamber nearby, as the mixture is pumped by the rotating crescent shaped space inside the chamber. Another design has inlet chambers at top and bottom each with a reciprocating blade adjacent to it, forming a two stroke engine.

Description

HIGH EFFICIENCY GAS FLUID MOTECRS? ECONOMIC
The present invention relates to all motors whose energy is supplied
by a compressible and decompressible gaseous fluid. by allowing an increase
tion of the force exerted on the movable piston; alternating or rotating, by a
increased section receiving internal gas pressure (or valves
as you relax.

Currently all fluid pressure variation engines, whether
acts of steam engines where to have compressed (cycle with 2 times) where of engines
thermal to axplosion, to Diesel or semi-diesel from the cycle to 4 times or from the cycle
says at 2 times which is improper since 2 times are carried out under the piston and
the other 2 times on the top of the piston, are either piston engines al-
or so-called rotary motors.

In all these engines whatever they are the power is determined by 3
elements which are: A) the second speed of the mobile
B) the pressure per square centimeter which decreases as and
as the stroke is evaluated at medium pressure
C) the section of the mobile receiving the pressure.

In any case, for generations that go back to CUGNOT and
DENIS PAPIN, all these mobile elements called pistons have
at every moment of their effort a single and equal section, and it follows that
the fixed components of these engines, walls and cylinder heads are
pressure a neutral effort much greater than the useful effort. exercises, on the
mobile whatever it is.

The device according to the present invention makes it possible to avoid what had
to date has been considered a necessity. By allowing an increase
increasing the section of the mobile as it moves during
la-produrtion of the motor effort we obtain not a pressure but an ACTION
much more power than any other engine today. There is
no phenomenon of modification of the pressure of the fluid in expansion, the physical element is unchanged the average pressure of the fluid being to be multiplied non paa
by a constant section but by a mean section between the minima and the
maxima of the same mobile.

The device of the invention can only be produced by a machine
rotary piston offering several possibilities of realization according to the fluid
motor used, depending on whether it is a question of producing small motors or large ones
industrial groups and depending on whether it is a two-stroke cycle
the production of force by steam where compressed air, where to achieve
4-stroke thermal engines.

différents schémas qui sont: j Figure 1 - Un cycle à 2 temps par tour. Dans un stator (1) tourne en excen

by
I This is expressed

different diagrams which are: j Figure 1 - A 2-stroke cycle per revolution. In a stator (1) turns in excess

I trally a rotor (2) fixed on a central shaft (3) A sealing screen (6)
which can be a pallet controlled from the outside by mechanical means is
in permanent contact with where without segmentation at the same time on the wall of the rotor
and on the internal wall of the stator thus forming a sealed mobile separation.

The fluid is introduced into a chamber (8) whose volume corresponds to the rate
of relaxation that one wishes to obtain at the end of the rotation of the mobile account
given the vacuum volume between stator and rotor between point (A) of the screen
separation and the tangential junction point (B) of the rotor.

The section of mobile receiving the force is of a length AB. The effort
exerted by the fluid is 100% positive until this tangential point of the rotor is 180 of rotation of the point (a ') and does not begin at this moment to be subjected to a negative force of pressure tale all the more minimal as the expansion has partially operated, the resultant remaining positive up to the exhaust opening point indicated by an arrow (ECH)
FIG. 2 represents the same process at 2 cycles per revolution for the rotor the effects of the back pressure and increasing the stroke by producing 2 f @ ia the force on the radius of the crank which is equal to that of the eccentricity of the rotor (2 ) relative to the tree (3)
These first 2 figures are also valid for the case of a 4-stroke cycle @ @ tor, the chamber (8) becoming a combustion chamber in which are introduced under total pressure where partial the gases admitted and precompressed either in an apparatus similar to the present engine but angularly offset on the same shaft, either by any other known mechanical means depending on the size and characteristics of the engine, petrol, diesel, (b for example simple piston in a cylinder, or a sou @ flerie where everything other means dosing very exactly the volume of gas to be admitted as a function of the compression tauz which one wishes to use and which is independent of the ara do the relaxation to be obtained
The following figures represent motors carrying out by their rotation the increase of the working section without @ no eccentricity and giving possibilities of high modes which the first 2 solutions do not allow to obtain because their speed is limited by the speed of propulsion of the fluid used, such as, for example, a rotor of 0.20 centimeters in diameter having a circumference of approximately 63 centimeters @ e would allow a rotation speed of approximately 48 revolutions second if one considers a speed of propagation of the flame of an internal combustion engine at 30 meters per second. Even in the case of FIG. 2 which gives 2 engine times per revolution, this speed will not be exceeded since the 2 revolutions follow each other on the same revolution.

 FIG. 3 represents a rotor motor without eccentricity which has 3 working faces. The stator (1), the rotor (2) pivoting around 1 (central shaft (3) has for each working face its own screen where pallet (6), its own exhaust (ECH) and the segmentation is tangential to a point constant.

The useful work is done only between the respective point (A) of each phase and does not end with the effect of rotation until (B) opening of the exhaust, located more or less far from its point of explosion follow the

<tb> coatrepresi <SEP> *
<tb> sion that we want to admit. The tangential walls of the rotor having contact with the stator are preferably sufficiently wide to close off at TDC

(Top dead center) the outlet of the chamber (8) where @@ produces the explosion where the volume of which is exactly known from the compression ratio or from the admission of the fluid (vapor) with control of the distribution of these.

encore ce bras de levier.In this figure the 3 phases s @ mlutaneously. There are in fact 3 motors per revolution which allows, with the same limitation of the fluid flow speed or of the propagation of the burnt gases, to have a rotation speed equal to 3 times that of the fluid, therefore improving the power-to-size ratio and also to balance the mass in circular motion and the forces exerted at all times on the shaft which are neutralized by their own action
Figure (4) has the same characteristics as Figure 3, but it is indicated here 4 working faces, the number of these faces may not be 5, 10 or more depending on the machine operating according to the principle of the invention which makes it possible to reduce by more than 80% the weight and the space requirement with equal power of steam engines for example. which are still in use today. In this figure, the importance of the profile of the rotor walls is demonstrated on the phase shown at left of the rotor. The more the profile is curved on the outside, the more the result of the forces (deflection) approaches the center of, pivoting of the shaft (3) thus reducing the lever arm which is is a factor determining the power Si instead of an arc is profiled a cord ù straight profile, the resultant (arrow 2) increases the lever arm and if we can b take advantage of a retracted src, the resulting t arrow 3) increases

again this lever arm.

 The 4 preceding figures are diagrams describing the basis of the invention all combinations of arrangement of the elements in line on the same urbre or in parallel on 2 where several synchronized trees are easy to carry out.

 The lateral sealing of the rotors is ensured by circular segments housed in the / side blanks thereof and the circumferential sealing by straight segments housed on the rot @ rs at each of their tangent point whatever their shape, dwune part, and also on the ends of by lettes (6) forming a gas screen and whose movement is controlled either by spring or by an external mechanism specific to each case in order to maintain constant contact with the rotor.

possible qu'avac l'emploi de rotors absolument cylindriques. |
La figure 6 est une transposition du mouvement précédent avec les mêmes avantages, mais pour obtenir 2 cycles par tour où plus, chaque cycle se suivent mais ne pouvant pas etre simultanés sur une même révolution. La seule sodifica, tion par rapport à l'exemple précédent est la fixation de la palette qui n'est pas rigidement fixée sur le rotot, mais encastrée en (18) dans celui-ci de ma- niére à avoir un léger mouvement de pivotement provoque par un point de centrage unique vers lequel sont dirigées les 2 palettes opposées.Figure 5 is a variant of sché-a of Figure l, the rotor fulfills the same functions but is no longer animated by a circular movement -conti. This makes it possible to reduce the centrifugal forces to be corrected by counterweights, and to almost completely eliminate the sliding friction of the circumferential segments. A circular cam is fixed (13) to the shaft (3) and forms a bearing race for a needle bearing (or ball) (14) housed inside the rotor (2) which 'is more animated than a minimal translational movement from left to right and up and down relative to the pivot point , The circumferential segments (16) only have the function of ensuring the seal between the tangential contact point of the rotor whatever the position due to its movement and the next or previous contact point.
- The compressed gases have penetrated through the light (8) into the combustioa chamber which is constituted by a recess in the wall of the stator (1), the wall of the rotor (2) and the vane (6) The first circumferential segment which provided the seal in the TDC position (Dead Center.High) to the right of the pallet in the direction of rotation but the next segment is based on the seal and the burnt gases which begin to pass above the first segm @ nt are hell linked by the next and it is so during the whole revolution to the point of escape (17). The screen pallet (6) is integral and fixed on the rotor (2) and slides in a housing formed in a circular mass (11) pivoting in its suitable housing provided in the stator. Sealing is thus completely ensured without controlling the pallet mechanism since it is the rotor itself which controls the movement back and forth, but this realization is not

possible only with the use of absolutely cylindrical rotors. |
Figure 6 is a transposition of the previous movement with the same advantages, but to obtain 2 cycles per revolution where more, each cycle follow but can not be simultaneous on the same revolution. The only modification compared to the previous example is the fixing of the pallet which is not rigidly fixed on the rotot, but embedded in (18) therein so as to have a slight pivoting movement causes by a single centering point towards which the 2 opposite pallets are directed.

 FIG. 7 is a diagram summarizing and breaking down the forces exerted on a rotor. It is assumed here a work cycle on a half-turn of the engine, ie a cycle on a half-circumference. The division into 12 equal degrees of rotation is only figurative and can be determined at will during the study for the relaxation rate that one wishes to obtain. This figure therefore assumes a rate of.

expansion of a volume equal to 12 times the volume of the combustion chamber if it is an internal combustion engine or the volume admitted under pressure if it is a steam, compressed air or other machine fluid. The starting pressure is assumed to be 20 Kgs / cm2. The force exerted on the walls of the rotor during the first 150 degrees of a 180 O stroke is: each phase being assumed to be ONE centimeter in circumferential length)
End pressure Average pressure Number of phases on TOTAL
of phase which acts PX 1 Ph. 20 kg 20 Kg X 1 ;;;;;;;;;;;; ...... 20 @ge 2 Phase 10 Kg 7, 5 Kg X 2 .... ............. 15 "3 Phase 7, 5 8, 75 X 3 ................. 26.75 4" 5 "6 , 25 X 4 ................. 25.00 5 "4, 37 4, 59 X 5 ................ . 22.95 6 "3.75 4.06 X 6 ................. 24.36 7" 3, 13 3.44 X 7 ...... ........... 24.18 8 "2, 5 2, 82 X 8 ................. 22.56 9" 2, 32 2 , 41 X 9 ................. 21.69 0 "" 2, 14 2, 23 X 10 ............... .. 22.30 11 "2, 01 2.07 x 11 .................. 22.77 12 no 1.88 1.95 x 12 .... ............. 23.40
Total effort in kilos .......... 285, 96
Average effort per cm / 2,285.96: 12 = 23.83 Kgs.

As an indication, the average pressure of a fluid expanded to 12 times its volume under an intake pressure of 20 kilos is only 4 Kilos 61 per cm / 2
The device object of the intention can Besides used in all the cases where compressible and decompressible fluid can make function an engine by transforming its caloric energy chemical or physical in mechanical energy.

and especially when it comes to using water vapor or other, compressed air, chemical materials whose mixture with other materials where elements such as air where water produce an increase in volume at the same time as an increase in pressure, as is the case with hydrocarbons mixed with air, for example without limitation.

 Independently of the economy that the process allows to achieve, in carburan or in fuel, the engines produced with this process are at equal power much more economical also in weight, in raw material, in machining and work as well as in size , and can of this set of facts be used to move all mobile, land, nautical, aerial or industrial.

 its use in all these areas is likely to modify the orientation of the production of all mobiles and also makes it possible to use waste or all hot sources, even aqueous, by making the use of steam as a source. profitable energy.

Claims (6)

 R E V E N D I C A T I O N S.  - the device making it possible to considerably improve the force received by a rotary piston by obtaining an increase in its section where the surface of the tria, vail as and when it is rotated by means of any eccentricity allowing the offset of the component of the forces outside the pivot axis.  2 .- Device according to claim 1 and characterized in that the means for increasing this surface consists in using a circular rotor eccentric with respect to the rotation on the one hand, and by obtaining a tin  chewiness by means of a screen where paletates at a fixed point of the stator ensuring a point of permanent contact with the rotor on the other hand.  3. - Device according to claim 1 and characterized in that the means intended to increase this surface consists in using a rotor of circular profile without eccentricity on the shaft, this eccentricity being obtained on the one hand by the profile of the rotor that has straight cords where curved and completed on the other hand by a screen where pallet placed in a fixed point of the stator so that the component of the forces is always offset relative to the axis of rotation  4 .- Device according to claims 1,2 and 3 and characterized in that one can obtain all combinations of assembly of these motel elements by arrangements in pairs, in multiples assembled in line on the same shaft where in par lléle on 2 where several different trees, synchronized or not. 5 .- Device according to claims 1,2, and 3 and characterized in that the force exerted on the piston is at any time greater than that of a six full pressure of the fluid, the average force increasing with each degree of rotation due to the increase in surface despite the gradual lowering of the average internal pressure of the fluid which remains subject to the same laws of expansion that all heat engines undergo.  6 .- Device according to claim I and characterized in that the  desired expansion rate conditions the volume to be admitted, the admitted volume being  either equal, or less, or greater than this amount of relaxation depending on the  tination of engine use. i  70. Device according to claims 1,2,3,4,5, and 6 and characterized by  the fact that it can be used for all fluids as well of the 2-stroke cycle  for example, steam or compressed air, only for 4-stroke cycle engines.