CH654877A5 - ROTARY MOTOR WITH SUCCESSIVE VAPORIZATION AND CONDENSATION OF A FLUID. - Google Patents

Description

The present invention relates to a rotary fluid motor, comprising a set of rotational integral crews each formed by two rigid modules with constant volume, diametrically opposed and containing a fluid which vaporizes and condenses successively depending on whether the module is subjected to the effect of the hot spring or that of the cold source.

The invention relates in particular to a solar mill converting thermodynamic energy into mechanical and electrical energy via a thermodynamic fluid in constant equilibrium (liquid vapor) and in a looped circuit, and a second fluid (water, oil, etc.) or a tilting member.

Such solar devices are already known, ensuring the conversion of thermodynamic energy into mechanical energy, either by vaporization of a fluid, or by means of a gas engine using the Carnot diagram.

However, these two types of installation, currently presented on the market, are expensive, gas engines in particular requiring complex installations (sensor, evaporator, condenser, expansion motor, reinjection pump, etc.).

Apart from the very high investments they entail, these installations also require permanent technical assistance. In addition, their performance is poor. Some applications take the form of gadgets because they are not industrialized. These gadgets are based on the following principle: a liquid which evaporates by increasing the pressure of the tank, this pressure causes a liquid to rise in a system of equilibrium, causes the assembly to tilt and returns to its initial position. This is what takes the common name of Duck.

The present invention aims to create a rotary motor of the above type, capable of providing a relatively large power for driving a user device, and the operation of which is not quickly disrupted 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 fluid and a heavy transmission means transmitting immediately and fully any variation in volume from one of the chambers to the other, the transmission means thus taking an unbalanced position generating a torque transmitted to the axis of the engine.

The transmission means can be a set of two pistons connected either by a connecting member provided with a heavy mass, or by a column of liquid.

The two pistons can also be constituted by 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 fluid contained in the two chambers are equal and the transmission member, heavy, is at l 'balanced.

It is only as a result of the 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 axis. motor output.

The present invention will be described in more detail with the aid of the appended drawings in which:

fig. 1 is a block diagram of an engine according to the invention;

fig. 2 is a sectional view along II-II of FIG. 1;

fig. 3 is a sectional view along III-III of FIG. 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;

fig. 6 and 7 are diagrams of two embodiments of a tunnel.

According to fig. 1, the rotary fluid motor consists of a set of modules 1 each formed by two chambers 2, 3, connected together for example by a diametrical arm 4 also forming a connecting tube.

Each enclosure 2, 3 contains a pocket 6; the two pockets of the two corresponding enclosures communicate by the tube 4. The volume, delimited respectively between each enclosure 2, 3 and the pocket 5, 6, is sealed and contains a fluid capable of vaporizing at the temperature of the source hot SC and condense to cold source temperature SF. As the temperatures of the hot sources SC and cold sources SF depend on the conditions of use, the fluid is chosen accordingly.

The assembly formed by the two pockets 5, 6 and the tube 4 constitutes a closed, constant volume, with two deformable parts formed by the pockets 5, 6. Any reduction 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-com-primable fluid, preferably a liquid, for example water, or a liquid of higher density.

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All the moving parts (2, 3) are integral with an output axis 7. As the torque exerted by each moving part depends on the difference in weight between the two pockets 5, 6, the hot source SC acts on a vertical half of the device and the cold source SF acts on the other vertical half of the device.

The axis 7 comprises in each plane as many mobile equipments as the size of the enclosures 2, 3 allows. Several mobile equipments 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 an absorber of solar radiation. The cold source SF also consists of a channel 9 of circular section and toroidal shape 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 an envelope 10 constituting a heat absorber surrounded by a transparent envelope 11 giving a greenhouse effect.

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 makes it possible to cool the channel and consequently the enclosures as and as they pass through the canal.

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

Finally, the device can be combined with any other natural energy recovery device.

Fig. 2 is a section on II-II of FIG. 1 and shows the structure of the device at the hot source, the channel of which works by greenhouse effect. This section shows the transparent outer envelope 11, containing an air layer, then the absorbent material of the absorber 10 defining the channel 8 in which the enclosures 2, 3 circulate. The enclosures 2, 3 of each crew, which are preferably spheres or quadrilaterals made of a highly conductive material such as copper or aluminum, contain the deformable envelope 5, 6 which is made of a material preferably poor conductor to limit heat or cold exchanges to the fluid not compressible.

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

According to fig. 2 and 3, the seal 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 17. This seal can also be ensured by in a different way by replacing the radial tubes 4 with a rotor or at least by associating with the external part of the tubes 4, at the level of their passage in the channels of the hot and cold sources 8, 9, a ring ensuring the sealing by contact of sliding or rolling on the opposing sealing members provided in the channels of the 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 sources, it is advantageous to provide the enclosures at least partially with blades 18 to improve the transmission of movement.

Finally, the hot source can be replaced by a basin which heats up to solar radiation or which contains hot recovery water and into which the chambers successively plunge to warm up, the cold source being constituted by the exterior of the basin.

According to fig. 4 and 5, the motor consists of a stator 20 and a rotor 21.

The stator 20 is in the form of a toric tunnel (FIGS. 6 and 7) comprising an insulating envelope 22 of for example rectangular, square or circular section, surrounding an enclosure 23 in which a heat-transfer fluid circulates and an enclosure 24 in which an io circulates. coolant. 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 kings tor 21 consists of a set of modules comprising a flexible partition 27 delimiting chambers 28, 29 and 30 respectively,

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The chambers 28, 30 contain a thermodynamic fluid capable of vaporizing and of condensing at the temperatures of the hot and cold sources of the engine.

The chambers 29, 31 are connected by a conduit 32, and the entire volume thus delimited contains a liquid whose boiling point is much higher than that of the hot source.

The liquid is thus partially discharged from the chamber (for example 29) situated on the side of the hot source towards the chamber 31 on the side of the cold source, thus unbalancing the module to create a motor torque applied to the output shaft of the engine.

Fig. 5 shows the deformation and the position of the two partitions 27; in this example, the partitions are deformable; they could also be constituted by a partition forming a piston and enclosing a column of liquid.

According to another variant, not shown, to increase the possibilities of the motor, the mass displaced during each cycle is increased; for this, the two pistons can be connected by a piston rod 35 possibly loaded with 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, the chambers 33, 34 are connected by a conduit 40 which puts them in communication. The volume thus delimited contains a liquid inert to the operating temperatures of the installation, that is to say not evaporating at the temperature of the hot source.

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

To improve operation, it is useful to isolate the chambers of the different modules from each other.

50 The inlet and outlet of heat transfer fluids from hot and cold sources have the references 27, 38; 39, 40.

Figs. 6 and 7 show two examples of tunnels for hot and cold sources. On the side facing the center of the torus, the tunnels have a passage 41 for the conduits 32, 36.

55 Finally, to prevent the partition 27 or the pocket 35 from blocking the conduits 32, 36, these are provided with a protective member 42 (fig. 5).

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

3 sheets of drawings

Claims (7)

654,877 1. Rotary fluid motor, comprising a set of rotational integral teams each formed by two rigid modules with constant volume, diametrically opposed and containing a fluid which vaporizes and condenses successively according to whether the module is subjected to the effect from the hot source or from that of the cold source, motor characterized in that each module consists of a sealed deformable chamber (5, 6, 28, 30, 35) containing fluid and a heavy transmission means (4, 32, 36) transmitting immediately and completely any variation in volume from one of the chambers (5, 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 connected integrally in movement and each piston constitutes the movable wall of each deformable chamber. 2 3. Engine according to claim 1, characterized in that the transmission means is constituted by a column (4) of liquid inert to the engine operating temperatures and conditions, this column of liquid being between two pistons (5, 27, 35) delimiting the sealed chambers of variable volume each containing thermodynamic fluid. 4. Engine according to claim 3, characterized in that the pistons are constituted by flexible deformable partitions (27) or by pockets (5, 6, 35). 5. Motor according to 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 (23,24 ) in which circulates the heat transfer fluid from the hot source or the cold source, itself surrounded by an isolation enclosure (22) and the rotor (21) consisting of different crews formed of modules, the rotor circulating in the enclosure delimited by the stator (20). 6. Motor according to one of claims 1 to 4 wherein the hot source is constituted by direct solar radiation, characterized in that it comprises a stator (20) and a rotor (21), the stator (20) being consisting, in the part corresponding to the hot source, by a greenhouse tunnel surrounded by an enclosure (23, 24) in which the heat transfer fluid from the cold source circulates, itself surrounded by an insulation enclosure ( 22), and the rotor (21) consisting of different crews formed of modules, the rotor circulating in the enclosure delimited by the stator (20). 7. Motor according to claim 6, characterized in that the successive chambers of the different modules are thermally insulated from each other.