Autonomous selfrunning pump of Djérassem le Bemadjiel from Tschad

[hartiberlin]

Hi All.
on the last Inventor Exhibition in Genf, Switzerland there was a guy from
Tschad, Africa Mr. Djérassem le Bemadjiel,
who has invented a great selfrunning water pump.

It works due to bouyancy and the weight of the water and the air pressure
and he has a patent in french language about it.

Here is a quick translation from Google Translator into english language.

Please have a look at the pictures in the patent about it.


SYSTEM AND METHOD FOR PRODUCTION OF SELF AND FLUID
ELECTRICITY
"THE PRINCIPLES OF DEPRESSION AND SERIAL COMPRESSION SELF"
The technical condition
The different methods of artificial pumping in existence today have one thing in common with what they need a source of mechanical energy, electrical, solar, wind or hydrodynamic order to produce a hydrodynamic or hydraulic energy required to transfer liquid or one point to another. There are electric pumps (or axial submersible electric motor with the surface), which as the name implies, require electrical power to be able to pump a liquid from one point to another. There are also a piston-powered pumps used for human crew of drilling water. These pumps require continuous human motor skills to operate. There are also Glockeman type pumps which also works on an ongoing basis, but requires a natural spring to fall or be capable of operating independently. All these different pumping systems require external power, they require mechanical movement to provide the energy required to move hydraulic fluid. Also they are subject to mechanical wear component that make the more they are used over their operating time decreases. Hand pumps fitted to almost all of the wells of villages in the Third World does not take long because of their fairly rapid wear. The most efficient of these pumps easily reached the depth of 100 m. What makes them impractical in some area bases or the water table is above 100 m. Is then used in submersible pump system using solar panels or generators. The maximum pumping speed of these hand pumps decreases significantly with depth. The largest share of these pumps have an average hourly rate 750 liters making it difficult to access drinking water in villages. This causes a long queue. Such as pumping systems are not easily applicable in most countries in the developing especially in the case of irrigation or drinking water distribution efficicace.
One of the crucial problems of our era today is the energy not harmful to the environment. Today all production systems used are the most energy-based fossil fuel. There are thermal power plants that require fossil fuel to generate electricity. Burning these fuels produces carbon dioxide and other greenhouse gas emissions responsible for global warming. These power plants use combustion engines known to start turning a shaft which drives the alternator which in turn generates electricity.
The use of nuclear fissile material to heat the water vapor is directed toward high-pressure turbines, causing them to rotate. The rotation of the turbine then drives a generator that produces electrical energy in its rotation. Nuclear plants produce no greenhouse gas emissions but for, they leave a lot of radioactive waste very difficult to manage. Nuclear power no matter where they are, present global danger in case of accident the example of Chernobyl. Cost of investment and expertise required to manage these power plants are enormous and therefore many countries in the world can not afford to dream of such technology.
Nowadays a lot of effort have combined to renewable energy such as solar, wind, geothermal sources and so on. Solar energy uses sunlight to excite the photovoltaic panels that provide the output of electric power. This is a free and clean energy for the cost of solar equipment are still exorbitant and also disturbances or seasonal climate affecting the performance of photovoltaic systems. This makes them very attractive for his own consumption and on the scale of cities. Wind energy is widely used in many developed countries but it will wind to create energy. Wind energy systems are not under human control. They depend on the sales cycle. They can serve as input to support other systems of energy production.
In the case of wind energy is the wind which causes a propeller which in turn rotates the generator that produces electricity.
All the systems cited above transform the energy received in a rotary motion that drives a generator and thereby generate electricity. The ideal case is that of hydroelectric power stations that use a continuous fall of water to produce a fair amount of energy. Hydroelectric dams are the best systems because they do not pollute, do not require input of fuel and produce no greenhouse gas emissions. Only these hydroelectric dams can be built or that there is a natural fall of water with a head big enough to function. This limits their use geographically, we can not create hydroelectric power plants. You can build hydroelectric sites, the study shows a potential technique. Many people had thought to build a hydroelectric power plant closed loop. That is to say, is a central height of a tank and another tank underneath. The idea was to bring down water from the reservoir height, the drop will cause a rotating turbine to produce electricity. A pump will be installed in the recovery tank and down to pump back the water in the tank installed height. But such a system is impossible to achieve because the turbine will have dissipated some of the potential energy of water falling a second cause of friction and the total energy absorbed by the pump is not converted to 100% hydraulic energy to return the initial water in the tank. A hydroelectric farm is impossible. Hence the need for a drop in flow naturally.
Description of the Invention
The present invention then solve the problem of external energy input to be converted into hydraulic energy required to pump or transport of a fluid from one point to another. The invention is a method based on the principles of depression or rebound and compression and a serial self-pumping system to independently and continuously any liquid in contact with the system. The system has no pumps or a mechanical piston and no need for external power supply to operate continuously. With these aforementioned features, the system has solved one of the biggest problems: the need for external energy. Depression serial standalone
The principle of serial depression is based on the fact that gas in a strong non-isolation can receive work from the outside environment or provide the external environment. A strong non-isolated thermodynamic system is a system that does not exchange matter with the external environment but can interchange any kind of energy with the external environment (eg heat, mechanical force, displacement, etc. ....).
The present invention therefore exploits the situation or is the system that provides farm labor to the external environment. Here it comes mostly fluids. Take the case of a compressible fluid, such as air, contained in a tube insulates the external environment by a plug of negligible weight and can slip without friction on the tube wall. If we take the pressure of the external environment below the pressure in the interior of the system, the cap will move under the influence of the expansion of the compressible fluid located inside the system. It is said that the system provided work.
Figure # 1 shows two enclosures separated by an impermeable cap of negligible weight. The cap is secured by two pins [100] to maintain the cap in place against the pressure differential. Let V1 and P1 respectively the volume and pressure in the compartment B and Pex pressure in the compartment such as Pex A "P1. When we remove the two goubilles [100] cap [101] is pushing up due to gas expansion as shown in Figure 2. This is the result of work of the gas in the enclosure .
The work performed by the system results in an increase in volume [103] which corresponds to the equation:


(Equation 1)
Pex with the pressure in the external environment and the change in volume dV [103]
Let the same experiment but instead of having a cap that can slide without friction as a result of expansion or expansion of the gas, we replace it by a plug [104] completely fixed by welding or gluing to the tube wall . This cap can not move when expanding gas. Then fill the compartment B of liquid [107] incompressible. Do through the cap [104] between Segment A and B by a tube [106]. This tube [106] penetrates to a depth so as to prevent gas exchange between the compartment and the compartment B A. This system is a closed thermodynamic system in which the non-isolated floating cap is replaced by an incompressible liquid. Tube [106] that runs through the two compartments is isolated by a valve [105]. When the valve [105] is closed as shown in Figure 3, the two compartments A and B are thermodynamically closed and isolated. Maintain the gas pressure in the compartment A, Pex, a lower gas pressure P1 [110] reign over the liquid in the compartment B. If the valve is maintained [105] closed, the two compartments are isolated from each other as shown in Figure 3. In this condition nothing happens in the compartment B. If you open [slowly] valve [105], because the pressure Pex compartment A is less than the gas pressure [110] of the compartment B, the gas will begin an isothermal expansion which will then push the liquid [107 ] compartment B was back in the tube [106] as shown in Figure 4. The liquid penetration is accompanied by an increase in the volume of gas [110] in the compartment. This increase in volume [108] is the result of work done by the gas [110] compartment B. the increase in volume without exchange of matter in the compartment B is thus accompanied by a drop in gas pressure P1 [110].
The total work done by the gas [110] while in detention is expressed by the following equation:
w =-PDV - mgh =-PexdV (Equation 2)
With P the gas pressure in the compartment B, the change in volume dv [108] gas [110] in Figure 4, m the mass of liquid, g gravity and h is the height [111] of incompressible liquid [107 ] in the tube [106]. Pex is the external pressure in compartment B reign in the compartment A, dV is the change in volume [103] in Figure 2.
The condition for the liquid [107] completely fills the tube [106] is that the work done by expansion or expansion of the gas [110] is sufficient to provide the required work. And this is directly related to the magnitude of the pressure Pex compartment A. In the experimental setup of Figure 3 and Figure 4 the work necessary to provide for the liquid [107] completely fills the tube [106] is described by the following formula and taking into account the provisions of the Experience:


'<(Ec>> <uation 3)> P1 and V1 are respectively the pressure and volume of the gas [110] is the initial state, that is to say, before the opening of the valve [105]; Q is the density of liquid [107], g is gravity, R is the gas constant, T is the temperature of the gas, Vt the total volume of the tube [106]; UGVs is the specific volume of the tube [106]; pest angle between the system and the horizontal plane.
The gas pressure [110] in the compartment B when the work performed is large enough that the liquid [107] rises to the height of the tube [106] is expressed by the equation described by equation 4. This pressure is called the critical pressure, Pc, above which the liquid [107] will overflow tube and flow into the compartment A. It is expressed by the following expression:
PGV t sin a pc - P11 F1 j [beta] <RTV> tsp (Equation 4)
V1 + V1
The total work provided by the isothermal expansion of the gas [110] thus expressed by the equation below which is the solution of equation 3:
(5 <Equation )>


The decrease in gas pressure [110] B compartment due to the expansion of the latter can be used as external pressure from another system similar to the strong non-isolation system of Figure 3 and 4. This amounts to have these simple features of the model studied in Figures 3 and 4 in series by stacking them on top of each other as shown in Figure 5. This device is thus made a series of strong and isolated thermodynamic system with respect to the gas above the liquid stores of each system. The number of moles of gas remains constant because there is no material exchange with other systems. The counterpart of the thermodynamic point of view, the incompressible liquid behaves as an open system because there is possibility of transferring liquid from one system to another. It is this combination system between the liquid and gas which will be crucial for the functioning of the entire system as shown in Figure 5. The expansion of the gas is in a closed system and isolates will provide the work needed to transport the liquid that is in an open system to another.
In the device of Figure 5, applying a lower pressure gas from the first system [112] This will cause the expansion of the [114] located below and the "relaxation or depression in series or serial" will spread to the latter system [115] depending on the pressure created at the first system [112]. The latter system [115] is linked directly by a tube [117] to the external environment (external system [116] containing liquid above which there is a pressure P can be pressure atmosphere in most cases or if a different pressure this external system is also closed to the atmosphere. The pressure P is roughly equal to the initial gas pressure of each system of the device in Figure 5. If the pressure applied to the first system [112] is quite sufficient to cause expansion of the gas contained in the latter system [115]. This expansion in turn will cause a decrease in system pressure. [115] This will create a pressure differential between the ambient pressure outside of the system [115] that which will result in rises of the liquid in the system [115] in the tube. [117] The arrival of the liquid in the system [112] will increase the gas pressure of the system which will cause a further rise of the liquid system [112] to the system is above. This increase will take place serially, it is called "serial flow" until the liquid reaches the first system and is deposited [113]. If it keeps the pressure of the first system ever, this depression followed by serial serial flow will never end. When the vacuum created in the first system [112] is large enough that the pressure of the last system [115] is equal to the critical pressure, the pressure P / gas content in each system / can be described or evaluated by the following equation:
(Equation 6)


With / the rank of the system down and Pex absolute pressure applied to the first system.
Pex create for depression at the first system [112] n the maximum number of thermodynamic systems arranged in series so that the gas pressure in the latter system is equal to the critical pressure Pc is calculated by the following equation :
n _ 1 (Equation 7)


From Equation 7 the number of systems to a series tends to a constant when the angle to 90 degree DTEND, ie vertically. The magnitude of n is limited by the square of the volume of the tube, in other words the mass m of liquid because of the work (- mgh) has to provide for raising water in the tube. This angle for so DTEND zero, the total number of systems n tends to plus infinity, which will mean that if you install this system in the horizontal plane that is to say the surface layer of soil The length of the system tends to plus infinity. What makes this system the ideal pipe line for transporting liquid from one point to another. Also pressure losses due to friction is negligible and can be considered null especially as these losses are not limited only to losses through the tube [106] of each system alone, these pressure drops do s 'not add up. This allows to have a huge length of the device as shown in Figure 5. The arrangement of tubes has no influence on the system. The tubes can be presented several variants such as Figure 6 Also knowing the total number of systems connected in series, one can calculate depression PexR necessary to create in the first system [112] to achieve the critical pressure Pc in the latter system by applying the following equation:
PGV t <2> Q + l) sin ap Px V \ lsp RTV (Equation e <xR> F1 + Vt
The condition for serial flow continues to tank depends on the pressure differential between the pressure above the liquid [116] and the pressure of gas inside the latter system [115]. This differential must be large enough to raise the liquid [125] at the height of the tube [117] and pour in the latter system [115]. Also for this system to work continuously, it is important to note that the gas pressure [110] must be above the boiling pressure. Pressure below which the dissolved gas will gasify and will make up the difference in pressure in the system adjacent to the first system. The gas from the liquid phase will therefore increase the gas pressure above the liquid, which does not allow the activation of the low serial independently. The critical pressure Pc and the pressure of the first system Pex must imperatively be above the boiling pressure. For water, the boiling pressure even at 50 degrees Celsius is low enough (0123 bar) and can be estimated for temperatures between 5 and 140 degrees Celsius by the following equation:
lnPsût = 13, 7 - ^ <(> equation <9)>
With T the temperature in Rankine and Psat the saturation pressure in the atmosphere.
The device of Figure 5 is capable of autonomous depression followed by a serial serial flow independently. This operation will be perpetual, provided that the external system is not exhausted in cash and that the depression created in the first system [112] is kept constant. Practically this can be done using a vacuum pump connected to the system [112], the flow will be continuous. Use a vacuum pump will mean use of energy from an external source (electrical or mechanical).
So we will use a well-known properties of fluid mechanics to create the necessary vacuum in the system [112] continues to operate the system or the perpetual system. Consider a device as described in Figure 7. It is composed of a pipe filled with liquid to a height [119]. Above the liquid surface the pressure is normal may be at ambient pressure gas external environment. The pipe has a drain hole [122] closes a valve [121]. When the valve [121] is open, water flows from the orifice under its own weight. This flow causes an increase in the volume of the gas [123], similar to an expansion but an expansion force by the flow of water. This results in the reduction of gas pressure [123]. If we connect the extension [124] in Figure 7 to the first system [112] in Figure 5 as shown in Figure 8, the depression of the gas [123] will create a decrease in pressure required at the first system [ 112] to activate the serial self-depression. And if that pressure Pex system level [112] is equal to the pressure described by equation 8, the depression will be followed by serial standalone serial flow independently.
The discharge from the opening [122] stop at a minimum height described by the following equation:
T _ T Patin P ex (Equation 10) min
Pg
Patm with the external pressure equal to atmospheric pressure in a system open to the atmosphere. If the connection of the extension [124] is a base [125] system [112], the serial flow will increase the level of the liquid will flow through the extension so [124] of the column motor in Figure 7. The height of the motor column must be high enough so that when the liquid level reaches a minimum height Hmin which the flow stops at the tap [122], Pex gas pressure equals the pressure required PexR to enable autonomous and depression serial serial flow independently.
Compression serial standalone
Also the same system as described above using the principle of serial depression can be used independently by creating a serial self-compression. To achieve this, simply immerse the pump deep enough to cause compression of the gas above the liquid content. The main goal is to create a compression so that there is a differential with the ambient or external pressure. At the same time as the compression takes place and the fact that the liquid is open to the system located above a lower pressure, the gas compression will provide a work that will raise the liquid system in the upper compartment. Gas compression is by the entrance of liquid from the submerged part. The fluid from the system reduces the volume of air which increases its pressure. The compression pressure is equal to the hydrostatic pressure of the liquid in which the pump is submerged. 13 shows the pump operating mode serial compression independently. The total work received and produced by the gas is described by the following equation:
(Equation 11) w <0>


Or Ph is the hydrostatic pressure was immersed in the liquid, DVH is the volume of compressed gas, the gas pressure P after the extension, the volume dv win by the gas during its expansion, and dV the change in total volume gas when contained in an isolated system which Ph is applied.
The solution of equation 11 gives the following expression describing the pressure of gas during activation serial compression independently in each system according to the hydrostatic pressure P. It represents the pressure necessary to cause the rise of liquid up at the height of the tube ht:
PgV1 <2> sina
KTV P. Ph = [pound] <[Psi]> (Equation 12)
In the compression system serial self, there is no need for motor column. The pressure differential between the system and the external environment is sufficient to allow the serial flow when the depth of immersion is sufficient to enable compression serial. Equation 12 is valid when the compression pressure is less than or equal to 1 bar. In addition, the assumption that the compression follows the perfect gas law is no longer valid. It will consider the effects of real gases involving other parameters.
SCOPE drilling and water well
This invention can be applied in the field of water. It can replace all exhaust systems used today in the production of water. The depth can be achieved by the system is beyond several hundred meters. A simplification of this application is shown in Figure 9. The motor column corresponds to the drill head. The height of this column drive must be designed to satisfy the necessary condition to trigger depression and serial flow when the valve [128] will be opened. If the capacity of the aquifer [129] to produce water is quite sufficient, the height of the head [127] can be increased in order to have a sufficient charge. The valve [128] can be replaced by a series of fountains serve to allow a large number of individuals at a time. The design of this pump must account for the maximum flow that the aquifer [129] may issue to avoid drilling or dewatering wells. The pump flow must be less than the maximum rate of influx of water into the well or drilling. With this pump, a castle located at a height H of the soil can be filled directly. Simply remove the well pump at a height allowing the valve [128] to discharge the water directly into the castle. Apart from the desire to make water tank, the pump can operate without a castle. It can directly power distribution networks of water from a village or city. The limiting factor will be the peak flow of the aquifer. Independent Electricity Production
This pump has not solved the problem of hydro farm as described above in the paragraph of the technical condition. The pump do not require external power to raise water to any height above the ground, makes it possible to achieve a system of hydroelectric power generation loop as shown in Figure 10. This device consists of a reservoir [138] water containing [139]. The vacuum pump serial independent [131] is installed and covered at its apical part of a motor column [132] containing water. The motor column is connected to the reservoir by a manifold [133]. After the collector is connected turbine [134] which is linked in turn to an electric generator. Electrical wires [136] are connected to the alternator. When opening the valve [140], the water in the motor column [132] flows into the manifold [133] and spins the turbine which then drives the generator to produce electricity. The decrease of water in the motor column causes an extension of the gas [141] prevailing over the water. This expansion creates a vacuum so that the active phenomena of depression and serial flow through the pump [131]. It draws water into the reservoir [138] and flows into the motor column. The result is a perpetual flow that will turn the turbine [134] in a manner infinite. The system design must meet the conditions for the hydro farm work. The electric power generated by such a system is described by the following equation:
Pkw pQkg <(Equation io> n <13)>
Patm - Pex <(> Equation 14 <)> h = H -
Pg with Q the flow rate, h the effective height of fall and the height H [142] water in the motor column in relation to the axis of the turbine [134]. This type of plant can be built from a small scale (supply of a house) on a large scale (power a city of energy). From equation 13, the electrical power depends on the drop height h and the LED (Equation 15) two parameters are under control of the design so we can build a system that can generate power as possible magnitudes by adjusting the flow and height. To increase the flow rate Q, we can consider a design using multiple parallel serial autonomous vacuum pumps as shown in Figure 11. In this case equation 13 becomes:



With k the number of pumps connected in parallel and serial Qj flow of each pump.
A pipe carrying liquid
In the equation that describes depression in each system (equation 6) we note the importance of the influence of the inclination on the performance of the pump. When the angle ptend to zero, to the horizontal plane, the depression in all thermodynamic systems which is the pump is the same. This means you can use this serial depression self to carry liquid on huge distances without supplying energy externally. This property allows the application of irrigation in large areas. The drinking water in urban areas and as well as other non-liquid water. Management of water resources will be simplified. 12 shows the configuration that can afford to spend the vertical to horizontal.
Completion of works of art
These principles can be used to make autonomous public fountains or artwork of various kinds. DESCRIPTION OF THE DRAWINGS board 1 / 10:
This layer contains the 1 and 2. 1 is a thermodynamic system with two compartments A and B in which there is gas pressure different.
The two compartments are separated by a fixed cap [101] has held considerable weight with pin [100]. 2 is the same system which were removed goubilles. The gas compartment expands 2 by providing a work capable of moving the cap. At equilibrium the pressure in the two compartments is equal.
Planche 2 / 10
Figure 3 and 4 represent a system as described in Figures 1 and 2 except that the two compartments communicate through a tube [106] equipped with a valve to isolate them or put them in communication. Here the cap is replaced by a liquid that can get on the tube [106] according to the gas compartment B gets extension or not.
Planche 3 / 10
5 shows the vacuum pump or compressor serial consists of a stack of devices in series as described in Plate 2 / 10.
Figure 6 shows another way to arrange the tubes to put in thermodynamic communication compartments.
Planche 4 / 10
Figure 7 shows the column drive necessary for the creation of the low to enable serial depression.
Planche 5 / 10
Figure 8 shows the motor column and the vacuum pump serial mounted together.
Windsurfing 6 / 10
Figure 9 shows the configuration to produce any fluid into a well.
Plate 7 / 10
Figure 10 describes a system for producing electrical energy in an autonomous manner. It includes a tank, pump self-turbine, a generator and a manifold. Planche 8 / 10 Figure 12 shows a horizontal configuration for transporting liquid surface.
Plank 9 / 10
Figure 11 describes a station electric power independently with a combination of self-made pumps in parallel.
Planche 10/10
Figure 13 shows the pump using serial compression independently.

CLAIMS
A process of pumping a fluid wherein it is based on the principles of depression and / or serial compression independently and on a system to pump the fluid independently
2 Process for pumping fluid according to claim 1 does not include a submersible pump or a mechanical piston.
3 pumping process according to claims 1 and 2 based on the fact that the situation in which it operates expansion or expansion of a gas confined in a closed system that employs the external environment. The said gas may be depressed or pressure than the pressure of the external environment.
4 pumping process according to claims 1 and 2 wherein the compression or depression formed into a compartment of the system taken as a single module moves the fluid in another compartment of that module.
5 Process for pumping a fluid according to claims 1, 2, 3 and 4 wherein it is to have the simple devices or modules in series by stacking on each other.
6 pumping process according to claims 1, 2.3, 4 and 5 wherein the number n of stackable devices depends on the angle G between the system and the horizontal plane.
7 Process Pump according to claims 4 and 5 wherein n is the square of the volume of the tube if D is 90 degrees.
8 pumping process according to claims 4 and 5 characterized in that n tends to infinity if D is zero to say to a horizontal plane.
9 Process for pumping a fluid according to claims 1, 2, 3 and 4 characterized in that depression can be kept constant by using a vacuum pump. 10 The process of pumping water by serial flow according to claims 1, 2, 3 and 4 wherein the vacuum is created by a device comprising a column of water and closed by a valve which, when open causes depression. The same depression can be relayed to other compartments further away through a pipe.
11 The process of pumping water according to claims 1, 2, 3 and 4 wherein the motor column may be replaced by a system of partial immersion in the liquid to provide the pressure needed to activate the serial flow independently.
Pumping system 12 of a fluid according to claims 1, 2,3,4,7 and 10, characterized in that said fluid can turn a turbine.
13 Using the fluid pumping system according to claim 1, 2,3,4,7 and 10 for the production of hydro electric or hydrodynamic.
14 pumping system for the production of hydroelectric power according to claims 1, 2,3,4,7, 10 and 13 characterized in that it comprises the following facilities: a reservoir containing water, one or more Pump serial autonomous driving a column and a manifold and a turbine.
15 Using the fluid pumping system according to claim 1, 2,3,4,7 and 10 wherein the pump serial can be used to transport fluids over long distances.
16 Using the pumping system according to claims 1, 2, 3, 4.7 and 10 for drinking water supply was from a well or borehole or by surface transport.
17 Using the pumping system according to claims 1, 2, 3, 4.7 and 10 for irrigation in agriculture.
18 Using the pumping system according to claims 1, 2, 3, 4, 7 and 10 for the construction and creation of works of art or ornament. Using the system according to claim 13 in that the energy produced is used for moving equipment on land, sea or air.

[hartiberlin]

Here is a PDF file from the Netjournal:

http://www.borderlands.de/net_pdf/NET0511S12-21

And here is the original Patent with all the drawings in it
in french language:

http://www.multiupload.com/VNEFO3GGM3

and here are the mirror sites for the patent
in case one download site goes down...:

Rapidshare   
http://www.multiupload.com/RS_VNEFO3GGM3
   
Megaupload   
http://www.multiupload.com/MU_VNEFO3GGM3
   
Depositfiles   
http://www.multiupload.com/DF_VNEFO3GGM3
   
Hotfile   
http://www.multiupload.com/HF_VNEFO3GGM3
   
Zshare   
http://www.multiupload.com/ZS_VNEFO3GGM3
   
Filesonic   
http://www.multiupload.com/FC_VNEFO3GGM3
   
Fileserve   
http://www.multiupload.com/FS_VNEFO3GGM3

Regards, Stefan.

[TinselKoala]

Thanks, Stefan, for this very complete list of references. There does seem to be something missing, though...
Is there a YT video of the pump running?

[tagor]

Thanks, Stefan, for this very complete list of references. There does seem to be something missing, though...
Is there a YT video of the pump running?

look at the pump "fontaine de heron" it is working by pression and venturi !!

the pump of Djérassem is working by depression

[broli]

Interesting concept, I had to go over it a few times before I could see what he's aiming at.