FR2534321A1 - ROTARY ENGINE - Google Patents

Abstract

A. ROTARY MOTOR, B. MOTOR CHARACTERIZED IN THAT EACH MODULE CONSISTS OF A SEALED DEFORMABLE CHAMBER 35, 6 CONTAINING THERMODYNAMIC FLUID AND A WEIGHT TRANSMISSION MEANS IMMEDIATELY AND FULLY TRANSMITTING ANY VARIATION IN VOLUME OF ONE OF THE CHAMBERS THE OTHER CHAMBER, THE MEANS OF TRANSMISSION THUS TAKING AN UNBALANCED POSITION TRANSLATED BY A TORQUE TRANSMITTED TO AXIS 7 OF THE ENGINE. C. THE INVENTION CONCERNS IN PARTICULAR SOLAR MOTORS.

Description

The present invention relates to a rotary fluid motor

  thermodynamic device comprising a set of rotationally rigid crew and each formed of two rigid enclosures with constant equidistant volume and containing a hydrodynamic fluid that vaporizes and condenses successively depending on whether the chamber is subjected to the effect of the hot source or the cold source, the speakers being rigid at constant volume. The invention relates in particular to a solar windmill converting the thermodynamic energy into mechanical and electrical energy by means of a thermodynamic fluid in constant equilibrium (liquid vapor) and in a loop circuit, and a second fluid ( water, oil, etc.)

or a rocker.

  Such devices are already known

  for the conversion of thermal energy

  dynamic in mechanical energy, either by the -

  vaporization of a fluid, either through a

  gas engine using the Carnot diagram.

  However, these two types of installations currently on the market are expensive; gas engines requiring particularly complex installations (sensor, evaporator, condenser, engine

  expansion, re-injection pump, etc.).

  Apart from the very high investments they entail, these installations also require permanent technical assistance. Moreover, their performance is mediocre. Some applications take the form of gadgets because they are not industrializable. These gadgets are based on the following principle: A liquid that evaporates by increasing the pressure of the tank, this pressure makes a liquid rise in a system of balance, tilts the whole and returns to its initial position This is what

takes the common name of Duck.

  The object of the present invention is to create a rotary motor of the above type capable of providing a relatively high power for driving a user device, the operation of which is not quickly disturbed by

  the imbalance of the corresponding speakers.

  To this end, the invention relates to a motor characterized in that each module consists of a sealed deformable chamber containing thermodynamic fluid and a heavy transmission means transmitting immediately and integrally any variation in volume from one of the chambers to the other chamber, the transmission means thus taking an unbalanced position resulting in a transmitted torque

to the motor axis.

  According to another characteristic, the transmission means is either a set of two pistons connected by a connecting member provided with

  of a heavy mass, either by a column of liquid.

Both pistons can also

  be made of flexible partitions or pockets.

  At rest when the temperature of the cold source is equal to that of the hot source, the system is in equilibrium: the masses of thermodynamic fluid contained in the two chambers are equal and the transmission member, weighing, is

equilibrium.

  It is only because of displacement, of the heavy transmission member, under the effect of the pressure difference prevailing in the two chambers of the diametrically opposite modules of each crew, that this imbalance creates a torque.

  applied to the motor output shaft.

  The present invention will be described in more detail with the aid of the accompanying drawings, in which FIG. 1 is a schematic diagram of an engine according to the invention. FIG. 2 is a sectional view along II-II of FIG. 1, Figure 3 is a sectional view

according to III-III of Figure 1.

  FIG. 4 is a perspective diagram of another embodiment, FIG. 5 is a section through a median plane of the embodiment, according to FIG. 4, FIGS. 6 and 7 are diagrams

  two embodiments of a tunnel.

  According to FIG. 1, the thermodynamic fluid rotary motor consists of a set of modules 1 each formed of two enclosures 2, 3 connected to each other, for example by an arm

  diametral 4 also forming a connecting tube.

  Each enclosure 2, 3 contains a pocket, 6; the two pockets of the two corresponding speakers

  communicate through the tube 4 The volume delimited respectively

  between each chamber 2, 3 and the pocket 5, 6, is

  tightly closed and contains a thermo-

  dynamic, that is to say a fluid capable of vaporizing at the temperature of the hot source SC

  and condense at the temperature of the cold source SF.

  As hot spring temperatures SC and cold SF

  depend on the conditions of use, the thermal fluid

  dynamic is chosen accordingly.

  The assembly formed by the two pockets 5, 6 and the tube 4 constitutes a closed volume, constant, with

  two deformable parts formed by the pockets 5, 6.

  Any decrease in volume of one of the pockets 5, 6 results in an increase in volume of the other pocket 6, 5 since the volume thus closed contains a non-compressible fluid, preferably a liquid by

  example of water or a liquid of higher density.

  All mobile crews (2, 3) are integral with an output shaft 7 As the torque exerted by each mobile unit depends on the difference in weight between the two pockets 5, 6, the hot source SC acts on a vertical half of device and source

  cold SF acts on the other vertical half of the device.

  The axis 7 comprises in each plane as many mobile crews as allows the congestion of the speakers 2, 3 Several mobile crews

  can be juxtaposed on the same axis.

  According to one embodiment, the hot source SC is constituted by a toric channel of circular section corresponding to a half-torus. This channel 8 is a solar radiation absorber. The cold source SF is also constituted by a channel 9 of circular section and of toric form corresponding to a half-torus In fact, the channels of the cold source

  and the hot source (8, 9) correspond to the same torus.

  The channel 8 of the hot source is constituted by a casing 10 constituting a heat absorber surrounded by a transparent envelope giving an effect

Greenhouse.

  The channel 9 of the cold source has an outer wall 12, for example made of felt on which water is dropped which, by evaporation, takes heat and allows the channel to cool and consequently

  the speakers as they go through -

the canal.

  The movement can also be accelerated by a chimney effect by circulation of the hot and cold gases in both channels, with hot and cold air intakes 13, 14 and outlets 15, 16, for example Canadian wells supplying water. hot air or fresh air depending on whether the outside is the hot or cold source and the Canadian well the cold source

or hot.

  Finally, the device can be associated with

  any other natural energy recovery device.

  FIG. 2 is a cross-section on line II of FIG. 1 and shows the structure of the device at the level of the hot source whose channel is working by the greenhouse effect. This section shows the transparent outer envelope 11 containing a layer of air. then the absorbent material of the absorber 10 defining the channel 8 in which the speakers 2, 3 circulate The enclosures 2, 3 of each crew which are preferably spheres or quadrilaterals of a highly conductive material such as copper or copper. aluminum, contain-the deformable envelope 5, 6 which is a material preferably bad conductor to limit heat exchange

  or cold to the non-compressible fluid.

  FIG. 3 shows the structure of the device of FIG. 2 at the level of the cold source SF, showing the opaque envelope 12 absorbing the liquid, for example felt, delimiting the channel 9 in which pass

the speakers 2, 3.

  According to FIGS. 2 and 3, the tightness between the tubes 4 which carry the enclosures 2, 3 and the channel of the hot source and the cold source 8, 9 is ensured by flaps.

  can also be provided in a different way by

  placing the radial tubes 4 by a rotor or at least by associating with the outer part of the tubes 4 at their passage in the channels of the hot and cold sources 8, 9, a ring ensuring sealing by

  sliding or rolling contact on the actuators

  antagonistic seals provided in the channels of

hot and cold sources 8, 9.

  To take advantage of the rising circulation of hot gas and cold gas in the channels of the hot and cold springs, it is advantageous to provide the enclosures at least partially with blades 18 to improve the

transmission of the movement.

  Finally, the hot source can be replaced by a pool that is heated by solar radiation or that contains hot water recovery and in which successively plunge the speakers to heat up, the cold source being formed by

the outside of the basin.

  According to FIGS. 4 and 5, the engine

  consists of a stator 20 and a rotor 21.

  The stator 20 is in the form of an O-ring (see FIGS. 6 and 7) comprising an insulating envelope 22 of section, for example rectangular, square or circular, surrounding an enclosure 23 in which circulates a heat transfer fluid and an enclosure 24 in which a fluid circulates. Cooling each

  enclosure 23, 24 corresponds substantially to a semicircle.

  The rotor 21 rotates in the free volume

  delimited by the enclosures 23, 24.

  In a first embodiment (modules 25, 26), the rotor 21 consists of a set of modules

  comprising a flexible partition 27 delimiting respectively.

chambers 28, 29 and 30, 31.

  The chambers 28, 30 contain a thermodynamic fluid capable of vaporizing and condensing at the temperatures of the hot springs and

cold engine.

  The rooms 29, 31 are connected by a

  leads 32 and the entire volume thus delimited contains.

  a liquid whose boiling point is much

  higher than that of the hot spring.

  The liquid is thus partially discharged from the chamber (for example 29) located on the side of the hot source to the chamber 31 on the cold source side thus unbalancing the module to create a motor torque applied to the output shaft of the engine . Figure 5 shows the deformation and position of the two partitions 27; in this example, the partitions are deformable; they could also be constituted by a partition forming

  piston and enclosing a column of liquid.

  According to another variant not shown, to increase the possibilities of the motor, the mass moved is increased during each cycle; for this, we can connect the two pistons by a

  piston rod possibly loaded by a mass.

  According to FIG. 5, according to another embodiment, the module consists of two chambers 33, 34 each containing a deformable pocket 35 containing

a thermodynamic fluid.

  As before, rooms 33, 34

  - are connected by a conduit 36 which puts them in communi-

  The volume thus delimited contains a liquid

  inert to the operating temperatures of the plant

  tion, that is to say, not evaporating at the temperature

A hot spring.

  Spraying of thermodynamic liquid

  in the chamber 33 on the side of the hot source causes the liquid to flow back to the chamber 34 on the cold source side and thus generates a

engine couple.

  To improve the operation, it is interesting to isolate the rooms of the different modules,

each other.

  The inflow and outflow of heat transfer fluids

  carriers of hot and cold springs bear the

references 37, 38; 39, 40.

  Figures 6 and 7 show two examples of tunnels for hot and cold springs On the side facing the center of the torus, the tunnels comprise

  a passage 41 for the conduits 32, 36.

  Finally, to prevent the partition 27 or the pocket 35 from clogging the pipes 32, 36, these

  are provided with a protective member 42 (Figure 5).

  It should be noted that the rotor 21 according to FIG. 5, can also be applied to the case of a hot source constituted by direct solar radiation. In this case, the stator tunnel 20 is removed, at least in the component part source

  hot or is replaced by a greenhouse tunnel.

Claims (3)

R E V E N D I C A T I 0 N S   1) Rotary motor with thermodynamic fluid comprising a set of integral rotating crew and each form two rigid modules with constant volume, diametrically opposed and containing a thermodynamic fluid which vaporizes and condenses successively according to the module is subjected to the effect of the hot source or the cold source, characterized in that each module consists of a sealed deformable chamber (6, 28, 30, 35) containing thermodynamic fluid and a heavy transmission means (4, 32, 36) transmitting immediately and integrally any variation in volume of one of the chambers <6, 28, 30, 35) to the other chamber, the transmission means thus taking an unbalanced position generating a torque transmitted to the axis (7) of the engine.   2) Engine according to claim 1, characterized in that the transmission means is constituted by a set of two pistons integrally connected in motion and each piston constitutes the movable wall of each chamber deformable.   ) Motor according to claim 1, characterized in that the transmission means is constituted by a column (4) of liquid inert at the engine operating temperatures and conditions, this liquid column being between two pistons (5, 27, 35). ) delineating the watertight chambers   of variable volume each containing heat   dynamic. Motor according to claim 3, characterized in that the pistons are constituted by   flexible partitions (27) deformable or pockets (5, 35).    ) Engine according to any one of   Claims 1 to 4, characterized in that it comprises   a stator (20) and a rotor (21), the stator (20) being in the form of a tunnel surrounded by an enclosure (23) in which the coolant circulates from the hot source or   of the cold source, itself surrounded by an enclosure of iso-   tion (22) and the rotor (21) consists of the various crews formed of modules, the rotor circulating in the chamber defined by the stator (20. 6). The motor according to claim 5,   characterized in that the portion of the stator (20) corre-   hot spring, consists of an enclosure forming a greenhouse and the outer enclosure of insulation is deleted.   7) Motor according to claim 6, characterized in that the successive chambers of the different modules are thermally insulated. each other.