DE102006018892B3 - Electric energy producing device for road and rail traffic, has cover working together with fluid-cylinder such that cylinder executes stroke movement, when road user passes over cover, and groove units provided for movably retaining cover - Google Patents

Abstract

The device has a vertical tunnel/slot within a lane of a road, and a fluid cylinder (2) arranged in the vertical tunnel/slot and connected with an electric energy producing unit for producing electric energy from a stroke movement of the fluid cylinder. A flexible cover (4) works together with the fluid-cylinder such that the cylinder executes the stroke movement, when the road user passes over the cover. Groove units (5a, 5b) are arranged above lateral safety units (1a) of the vertical tunnel/slot and provided for movably retaining the cover.

Description

The The invention relates to a device for obtaining electrical Energy in traffic and in rail traffic. The invention also relates to a device for the production of electrical energy in elevator installations, wherein the elevator installation has at least one conveying device, which is arranged substantially vertically movable.

by virtue of the dwindling resources of fossil fuels and the becomes associated with the use of these fuels environmental impact the search for alternative energy sources more intense. there but becomes the meaning of existing but unused, large energy sources largely except Eight left. Operating materials of motor vehicles and rail vehicles consumed to power vehicles. The of the vehicles the roadway and rails are delivered pressures and braking forces but not used for energy.

in the Rail vehicles are some types of rail brakes known that absorb energy from rolling stock, this but do not use. In the area of the road, fluid systems are on the Roadway for the use of traffic counts in practical use, although these facilities are not geared to energy yield are.

From the DE 42 25 578 A1 is a device for generating energy is known, are arranged in the piston-cylinder units in the road below a pressure medium acted upon by transport. The piston-cylinder units are in this case connected to a turbine, which is set in motion as soon as the pressure plate and thus the piston-cylinder units are subjected to a force, for example by a vehicle running over. If the turbine is coupled to a generator, each time the pressure plate is passed over by a vehicle, energy is gained.

From the DE 196 23 739 A1 a similar device is known in which a depressible pressure rail is arranged in the road surface, wherein the pressure rail is depressed when passing over a vehicle and so a spring accumulator and a related hydraulic cylinder assembly is acted upon. Hydraulic pressure lines operate a hydraulic motor that drives a generator. Each time you drive over the pressure rail thus energy is gained.

In the DE 35 42 031 A1 a device for converting the braking work of moving motor vehicles is disclosed, which consists essentially of a ramp and departure ramp and these ramps are depressed when passing through a motor vehicle, wherein water is pressed from the underlying water cushion in a turbine, which is a generator for Electricity generation drives. The disadvantage here is that these ramps must protrude relatively far from the road surface in order to ensure effective energy production can.

A similar Device is known from WO 81/03050. The device has a cushion which is formed as a part of the roadway and with a gas or a liquid filled so that's about it moving vehicles push the pillow and that in the pillow gas or liquid by means of hoses lead to a turbine that drives a generator and so electricity generated. The disadvantage here is that the pillow is a relatively large size must be able to drive the turbine effectively. In addition, that must Cushions in the direction of travel have a certain length, so here the problem is that the flowing traffic obstructs unnecessarily will, as when driving over of the pillow the vehicle is braked.

Furthermore, from the US 1,393,503 a device for rail traffic, in which a plurality of cylinders are arranged on the rail, which are depressed when passing over the train by the Zugrad. By depressing the cylinder a pumping movement is carried out, which can then transport water into a designated container. Thereby, a water pumping device is realized, which is however designed only for conveying the water over a longer distance. An indication of energy production in dependence on the pumping movement of the cylinder is not apparent from this document.

The The aforementioned devices for generating energy have the Disadvantage that they are very cost and maintenance intensive. The installation of such Systems must always be in the planning of a road or a rail network taken into account become. Furthermore, the devices have the disadvantage that some of their components can not be serviced individually, so that high maintenance costs are to be expected.

in the In view of this, it is an object of the present invention, for the field the transport to provide an improved device with the in the street and rail energy can be generated. It is also a task the invention to provide a device with the energy in one Elevator system back can be won.

The Object of the present invention is with the device of initially mentioned type according to the invention solved by a device, which has at least one shaft within a lane of a road, arranged in the at least one fluid-cylinder element and with Means for generating electrical energy from a lifting movement the fluid-cylinder element is connected, and the shaft with a flexible cover is provided, which cooperates with the fluid-cylinder element, that when driving over the cover by a road user of the fluid cylinder a Executes lifting movement, wherein above the lateral elements of the shaft two groove elements are arranged, which rounded towards the center of the shaft and the movable receptacle of the flexible cover are provided, wherein in a plurality of fluid-cylinder elements, these individually removable are arranged.

The Invention is thus that of moving vehicles on tires or wheels so far to gain unused energy by the possibility the use as possible many already launched on the market and possibly also standardized components of the devices to a economical, cost effective and maintenance-friendly, nationwide Achieve implementation in practice. The invention is insofar commercially applicable as companies and companies engaged in manufacturing or the distribution of components of fluid technology, energy production, energy storage and energy use, elevator technology as well of accessories of the street and railway construction, this device or parts of it in their Be able to take up a range of services. The owners the traffic routes and lifts, ie natural or legal persons of the public or of private law, can By using the invention, you can save on expenses by producing the generated ones Consume energy itself or the energy generated in the power grid feed and thus generate revenue.

The Invention thus relates to a device for energy production by means moving transport, directly or using pressure reservoirs and Energy storage. Vehicles are motor vehicles, where this term includes both motor vehicles and their trailers. The Device has suitable security elements in road construction on, with the lateral securing elements on its underside are connected by a base plate to a U-shaped shaft to form the elements of fluid technology, drainage equipment and receiving maintenance elements and wherein this shaft via mounting devices for the to the installing fluid engineering elements and on the tops over horizontally has separable groove elements. The groove elements point to the ends directed towards the shaft Rounding up, these grooves have enough room for recording the cover even at the largest horizontal extent in the case of stress offer. The upper groove plates of the lateral Security elements are solvable and detachable.

In this shaft a group of fluid cylinders is mounted, wherein the piston of the cylinder with a back pressure device, suitable Valve elements of fluid technology and the required connection and fasteners are equipped. Furthermore, the piston heads the fluid cylinder each having a rectangular, rounded downwards on all sides Pressure plate equipped so that the fluid cylinder and the remaining fluid element after loosening the upper groove plates of the lateral securing elements individually can be removed. Furthermore, the fluid cylinders are lockable in receiving elements stored, with their shape dependent from the outer shape the fluid cylinder is. The supply and discharge lines of the fluid cylinder are equipped with couplings and shut-off devices at the Failure or replacement of at least one cylinder the rest of the system be able to supply with fluid.

The Covering of the shaft is done by means of flexible, heavy duty, abrasion-resistant and universally elastic elements, which are divided into segments can be these being on their long sides be movably guided in the grooves of the lateral securing elements, on the heads the fluid cylinder and rest on the two narrow sides the manhole cover to the outside can expand freely.

Around To prevent the device from freezing, it is conceivable that the cover elements in addition equipped with heating elements.

advantageously, the shaft is arranged substantially transversely to the roadway. The Fluid cylinders are designed as a telescopic cylinder to a preferably low height to reach. Furthermore, the shaft has a drainage device for deriving the surface and condensed water.

Furthermore, the object is achieved by a device for obtaining electrical energy in rail traffic, which has at least one arranged on a rail train fluid-cylinder element which is connected to means for generating electrical energy from a lifting movement of the fluid-cylinder element and that is arranged on the rail track, that the wheel rims and / or the edges of a device running over the rail vehicle with the Fluid-cylinder element cooperate so that the fluid-cylinder element performs a lifting movement.

in the Rail transport (trains, subways, S-Bahn and trams) are the siding sections in the range of stations or Stops, the shunting yards as well as the slopes, which is generally slowed down, especially interesting for high energy production. Here is a significant side effect: The brake systems Rail vehicles are reduced by reducing the signs of wear on the brake pads protected when the invention is passed through. But also here stands the application in normal track sections nothing in the way, if to be overcome by the invention Resistance the speed process for the corresponding route is adjusted.

Of the Term "rail vehicle" includes both Tractors and their trailers. The Device has at least one suitable, replaceable cylinder the fluid technology on the inside of a rail track, wherein this piston side is equipped with a back pressure device for rapid traverse and appropriate way valves. The cylinder also has a piston side on a enlarged drive-on head, which is rounded down at the two directions of travel, so that the wheel rims without big ones Resistance can accumulate on it. The piston head protrudes directly on the inside of the rail so far up that the wreaths the wheels rail vehicles can relinquish pressure down without while the leadership property for the Rail vehicle to lose.

Conceivable but is also that at least one fluid cylinder between the two Tracks of a track is arranged horizontally, so that its Auffahrkopf from the inside of the wreaths the wheels take the pressure, as a traction help curly and multiple Pressurally mounted pressure rails from the rail vehicles transferred pressure to the fluid cylinder transfer.

Especially It is advantageous if the one device is parallel to the two opposite Rails of a track is attached.

Of Furthermore, it is particularly advantageous if elements in a rail track be arranged with interchangeable elements and cylinders the fluid technology are equipped. These cylinders have a piston side over a spherical, slightly over half-shelled ball-bearing head on. Furthermore, the cylinders have a Piston back pressure device for the Rapid traverse and project at an optimizing angle from the bottom out obliquely out of the tread out of the rail.

The Task is also achieved by the invention a device for obtaining electrical energy in rail transport, the at least one arranged on a rail track drive wheel has, which is arranged on the rail track such that the wheel rims and / or the wheels of a the device passing through rail vehicle, the drive wheel in a rotational movement, wherein the drive wheel with means for generating electrical energy during a rotational movement of the Drive wheel is connected.

At The inner sides of the rails are elastically mounted rollers attached to any number, which provided with a flexible and abrasion-resistant wear surface are, whereby the radius of the rollers is dimensioned so that the wheel rims all in sizes used between the device can approach the roll axis and the rail inside. there the rollers are rigidly connected to their axes, the lower Part of these axes either directly or by means of a gearbox used as a generator drive or as a drive of a fluid pump which in turn drives a generator drive or a pressure accumulator served.

Especially It is advantageous if the generators or fluid pumps within of the ballast bed of the track body in a pressure and weather resistant recording device are provided, this being provided with the greatest possible coverage and a floor drain for Humidity.

Farther The object of the type mentioned is achieved by the invention a device for obtaining electrical energy in elevator installations, the elevator installation having at least one conveying device, which is arranged substantially vertically movable, characterized in that that on the conveyor at least one of the adjacent, parallel to the path of the conveyor Existing elements scanning wheel is arranged, the wheel connected to at least one means for generating electricity such is that power is generated when the wheel is moving.

in the The area of elevator technology is the possibility of electricity through the Up and down the elevators as a by-product, also not yet considered or been implemented. It comes especially in the field of elevator technology charging of emergency power batteries, supporting one existing drive system of the elevator system and the general Energy supply of the relevant structure of particular importance to.

at the passenger and goods lifts There is also the possibility, even in plants already in operation, of on the outside the load baskets at least one, but also taking into account the Structural and technical conditions several devices for To generate energy. On lifts, the energy gets through in addition to the elevator basket attached devices in rolling contact with the elements of the Schacht interior walls stand, taken off.

Under The term "elevator" is thereby any kind understood by passenger and goods lift.

The Device comprises at least one power generator or dynamo (Generator) on the outsides the conveyor basket a lift, which is mounted so that the energy intake by at least one of the elements of the inner walls of the elevator shaft elastic Wheel done.

advantageously, the fixture is sized to accommodate at least two generators can.

Farther It is particularly advantageous when the device is in its holder is movably mounted. The attitude has two settings, from one holding the device in working position and the other so attached is that when driving uphill of the elevator the device does not make contact with the elements of the device Elevator shaft inner wall has. It is particularly advantageous if the positional shift of the device by a suitable circuit and device takes place.

The The present invention will be exemplified with reference to the accompanying drawings explained in more detail. It demonstrate:

1 - schematic representation of the device for obtaining electrical energy in traffic;

2 - Schematic representation of the arrangement of the fluid-cylinder elements;

3 - Schematic representation of the device for obtaining electrical energy in rail transport;

4 - Schematic representation of the device for obtaining electrical energy in rail traffic with horizontally arranged pressure rails;

5 - Schematic representation of the apparatus for obtaining electrical energy in rail transport with arranged on the track drive wheels;

6 - Schematic representation of the device for obtaining electrical energy in rail transport arranged in the rail track Auffahrköpfen;

7 - Schematic representation of the apparatus for obtaining electrical energy in elevator systems.

in the Area of road construction It can be in sections where there is a reduction in speed is generally required (for example for traffic calming, in front of large traffic lights, before roundabouts, at toll and border points, etc.) too special huge Energy yields come. But also the incorporation of the invention in the normal road, if necessary connected with an upstream traffic sign "Attention Bump ", is at large Traffic very successful.

Exemplary embodiment road

The design of the device can be explained as follows: In the construction or renovation of roads and specifically as a subsequent individual measure, elements ( 1a . 1b ) installed in the road body, which - similar to the connection elements between roadways and bridge structures - are designed so that the crashes of the road body and the road surface are secured on both sides. In addition, these elements are on their underside with a horizontal element ( 1c ) connected. Thus arises - in addition to the achieved stability - between the lateral securing elements of the space for receiving the transverse to the roadway adjacent cylinders of fluid technology ( 2 ), which are individually interchangeable connected, the accessories of fluid technology and drainage facilities for the discharge of surface and condensation, and also for maintenance items.

Due to the limited installation height and the resulting low lift, telescopic cylinders may be suitable for this purpose. The piston rods are - to cover a larger area, adapted to the respective distance of the lateral securing elements to each other on the longitudinal sides of the device - with rectangular, rounded down on all sides printing plates as a head ( 3 ) fitted. The fluid cylinders ( 2 ) are equipped with a return device, such as helical compression springs, to keep the piston rods in the unloaded state in the highest position or to bring immediately after completion of load in this position (rapid traverse) and simultaneously absorb new fluid, so that the next operation in shape of energy intake and delivery. An intake valve must close after its fluid intake in the cylinder when reaching the highest position of the piston and an exhaust valve must be variably pressure-controlled under load deliver the accumulated in the cylinder fluids in the energy recovery system. Suitable valves and components of the prior art are to be used.

The space between the lateral elements is covered by the piston heads roadway side by flexible elements ( 4 ), which can stretch on all sides. In addition, they can still be provided with heating elements, which are fed from the electricity generated locally, to ensure the functioning of the device even in frost. These flexible elements are placed in grooves ( 5a . 5b ), which are located horizontally at the top of the lateral securing elements out. The surfaces of the upper groove plates ( 5a ) must be non-slip and resistant to abrasion and removable. As a result, the ride comfort and safety in road traffic is not unduly limited and the surface water largely kept away from the fluid elements.

• a) unmittelbar eine Dynamo oder Generator angetrieben werden, der die so erzeugte elektrische Energie entweder sofort dem Stromnetz zur Verfügung stellt oder sie vorerst in Akkumulatoren oder ähnlichen, diesem Zweck dienenden Einrichtungen speichert, oder
• b) der abgegebene Druck durch Elemente der Fluidtechnik in einem Druckvorratsbehälter gespeichert werden, um so eine gleichmäßige, von Druckintervallen unabhängige Stromerzeugung vornehmen zu können, bzw. den Strom dann erzeugen zu können, wenn es die Spitzenabnahmezeiten im Netz, also der Markt, sinnvoll erscheinen lassen. Diese Einrichtungen be finden sich vorzugsweise in einem neben der Straße aufgestellten Wartungscontainer. Befestigung, Fluidelemente und Elektrotechnikelemente, die noch zum Aufbau der gesamten Vorrichtung benötigt werden, sind Stand der Technik und bedürfen keiner weiteren Beschreibung.

To ensure ease of maintenance, the fluid cylinders are individually in fasteners ( 6 ) on the lower inner surface of the U-shaped shaft, possibly with a quick release device attached. Furthermore, the inlets and outlets of each cylinder, which open into main lines, through recesses ( 7 ) in the fasteners ( 6 ) and provided with stoppers and couplings to facilitate the replacement of individual cylinders ( 2 ) without affecting the rest of the plant. The main lines of the fluid supply and disposal, which connections for all cylinders ( 2 ) flow, on the one hand in a ventilated fluid reservoir which is fed by the consumed in the previous operations in the energy conversion fluids, and on the other hand in the energy conversion. It can be like that

• a) directly a dynamo or generator are driven, which provides the electrical energy thus generated either the power grid immediately or stores them initially in accumulators or similar, serving for the purpose of facilities, or
• b) the discharged pressure can be stored by elements of the fluid technology in a pressure reservoir, so as to make a uniform, independent of pressure intervals power generation, or to generate the current when the peak take off times in the network, so the market, make sense to let. These facilities be found preferably in a set up next to the road maintenance container. Fastening, fluid elements and electrical components, which are still needed to build the entire device are state of the art and require no further description.

Exemplary rail

Directly on the inside of the rail ( 8th ) are fluid cylinders ( 2 ), but at least one equipped with rounded in both directions and parallel to the rail on both sides flattened heads ( 9 ) arranged in any number vertically one after the other so that the wheel rims of the rail vehicles push their pistons when driving over and thus emit energy. Again, the fluid cylinder ( 2 ) on the piston side with a return device, for example, with a compression coil spring, be equipped to restore readiness for energy absorption after a completed operation immediately (rapid traverse). The structure of the energy recovery in the further course is equal to that which has been described in the embodiment road. Attachment, fluid elements and electrical components that are still needed to build the entire device are state of the art and require no further description.

Another possible embodiment is the fluid cylinder ( 2 ) between the two rails ( 8th ) of a track horizontally so that through the wheel rims of a rail vehicle ( 10 ) one with a curly starting aid ( 11 ) equipped and multi-layered ( 12 ) Pressure rail ( 13 ) from the railway track ( 8th ) is pushed away inwards and thereby the one or more with the pressure rail ( 13 ) connected fluid cylinder ( 2 ) appeals. An arrangement of two such systems at a height opposite in a track, as in 4 shown, offers itself particularly because the simultaneously absorbed forces favor the quiet location of the tracks in the energy output of the vehicles. The structure of the energy recovery in the further course is equal to that which has been described in the embodiment road. Attachment, fluid elements and electrical components that are still needed to build the entire device are state of the art and require no further description.

Another possible embodiment consists in an optimal distance to the inside of the rail generators ( 14 ) or fluid pumps ( 14 ), also with gearboxes, to the rail side ( 18 ) are resiliently mounted and the via a drive axle ( 15 ) have on their upwardly directed end a drive wheel ( 16 ) is attached with a tire-shaped, particularly abrasion-resistant and flexible covering. The generators ( 14 ) or fluid pumps ( 14 ) are within the ballast bed in a pressure and weather-resistant receiving device, which is provided with a grid-shaped cover and has a floor drain for precipitation, recorded. The radius of the complete drive wheel ( 16 ) with coating ( 17 ) must be chosen so large that wheel rims ( 10 ) of all embodiments that are used in the respective rail network concerned in the rail vehicles, always in the area between the drive axle ( 16a ) of the generator or the fluid pump on the one hand and the inside of the rail ( 18 On the other hand, start the device. The drive wheel ( 16 ) of the generator or the fluid pump then takes the energy from the rolling wheel rims of rail vehicles ( 10 ) in the form of shooting. The by a generator ( 14 Electricity generated can then be either immediately made available to the network or stored in accumulators or similar, serving for the purpose of facilities to be available on demand. Likewise, if fluid pumps are installed, the generated current or the fluid pressure can also be used to operate a pressure reservoir by means of elements of the electrical and fluid engineering, from which then a further generator (if necessary) with constant pressure. 14 ) can be driven to generate electricity. Attachment, fluid elements and electrical components that are still needed to build the entire device are state of the art and require no further description.

Another embodiment is to incorporate into a rail track compact elements, the fluid cylinder ( 2 ) contain. These cylinders are equipped with a slightly more than half-shell mounted ball as a head and a piston-side back pressure device, such as a compression coil spring, for rapid traverse and protrude at an angle to be optimized so from the tread of the rail ( 20 ), which when passing through a rail vehicle, the running surfaces of the vehicle wheels ( 21 ) depress the fluid cylinders and thus release the energy of the vehicles. The attachment of these elements is done by insertion in a rail track. The structure of the energy recovery in the further course is equal to that which has been described in the embodiment road. Attachment, fluid elements and electrical components that are still needed to build the entire device are state of the art and require no further description.

Embodiment elevator

At a lift cage ( 22 ) is on the outside at least one in the direction of a contact medium pressure-spring mounted generator ( 23 ), which can also be provided with a transmission. The spring-loaded generator ( 23 ) or - if additionally present - the transmission of the same is driven by at least one impeller mounted on a drive axle ( 24 ), which resiliently to the inside of the elevator shaft ( 25 ) or is pressed against an attached to the shaft inner wall device and so by rolling the energy of the up and down moving basket transmits. It is also possible to use two compression-spring-mounted generators ( 23 ) from a holder ( 26 ) to achieve a smooth run.

The Power lines leaving the generator can be used together with the power supply cables led away the elevator car become. The generated electrical energy can be either direct or after storage in a suitable energy storage, such as an accumulator. Alternatively, the operation a pressure reservoir by using a fluid pump - like in the example street described - to later Power generation possible.

Alternatively, the pressure-spring-mounted generator ( 23 ) are so movably mounted in the holder that it is activated via corresponding notches or other adjustment of the elevator cage side holder only when driving down and when driving upwards by an electrical, mechanical, magnetic, hydraulic or a hybrid form thereof designed circuit of the contact surfaces on the Inside the elevator shaft is removed to avoid increased energy consumption of the elevator.

1a

lateral fuse element

1b

lateral fuse element

1c

lower horizontal element

2

Fluid cylinder

3

all-round rounded head plate of the fluid cylinder

4

flexible cover

5a

groove element

5b

groove element

6

fastener for fluid cylinders

7

recess for receiving the inlet and outlet of the fluid cylinder

8th

rail

9

in both directions rounded head of the fluid cylinder

10

Wheel rims one rail vehicle

11

curly traction

12

storage the pressure rail

13

pressure rail

14

generator or fluid pump

15

drive axle for generator or fluid pump

16

drive wheel

16a

drive axle

17

covering of the drive wheel

18

inside the rail

19

something more than half-shell mounted ball head of the piston rod

20

Tread of the rail

21

Tread of the vehicle wheels

22

elevator car

23

druckfedernd stored generator

24

on Drive axle mounted impeller

25

inner wall of the elevator shaft

26

bracket

Claims (29)

Device for obtaining electrical energy in traffic, comprising at least one shaft within a lane of a road, in which at least one fluid-cylinder element ( 2 ) and means for generating electrical energy from a lifting movement of the fluid-cylinder element ( 2 ) and the shaft with a flexible cover ( 4 ) provided with the fluid-cylinder element ( 2 ) cooperates such that when crossing the cover ( 4 ) performs a lifting movement by a road user of the fluid cylinder, wherein above the lateral elements ( 1a . 1b ) of the shaft two groove elements ( 5a . 5b ), which are rounded in the direction of the shaft center and for movably receiving the flexible cover ( 4 ) are provided, wherein in a plurality of fluid-cylinder elements ( 2 ) the fluid-cylinder elements ( 2 ) are arranged individually removable. Device according to claim 1, characterized in that that the shaft is arranged substantially transversely to the roadway. Apparatus according to claim 1 or 2, characterized in that the cylinder of the fluid-cylinder element ( 2 ) is a telescopic cylinder. Device according to one of claims 1 to 3, characterized in that the fluid-cylinder element ( 2 ) in a receiving element ( 6 ) is arranged lockable, wherein the receiving element ( 6 ) is arranged in the shaft. Device according to one of claims 1 to 4, characterized in that the fluid-cylinder element ( 2 ) has a back pressure device, in particular a back pressure spring. Device according to one of claims 1 to 5, characterized that the shaft a drainage device for discharging the surface and condensed water having. Device according to one of claims 1 to 6, characterized that the device has heating elements, which by means of the device generated electrical energy to be fed. Device according to one of claims 1 to 7, characterized in that the fluid-cylinder element ( 2 ) a downwardly rounded pressure plate ( 3 ) having. Device for obtaining electrical energy in rail traffic, which is at least one on a rail track ( 8th ) arranged fluid-cylinder element ( 2 ) provided with means for generating electrical energy from a lifting movement of the fluid-cylinder element ( 2 ) is connected and so on the rail track ( 8th ) is arranged that the wheel rims ( 10 ) and / or the wheels of a rail vehicle running over the device with the fluid-cylinder element ( 2 ) cooperate so that the fluid-cylinder element ( 2 ) performs a lifting movement. Apparatus according to claim 9, characterized in that the fluid-cylinder element ( 2 ) perpendicular to the inside of the rail track ( 8th ), wherein the edge rims ( 10 ) and / or the wheels of a rail vehicle passing over the device, the cylinder of the fluid-cylinder element ( 2 ) Press down. Apparatus according to claim 10, characterized in that the fluid-cylinder element ( 2 ) a Auffahrkopf ( 9 ) which is rounded on at least one side. Apparatus according to claim 9, characterized in that the fluid-cylinder element ( 2 ) horizontally in the direction of the rail track ( 8th ), wherein the edge rims ( 10 ) and / or the wheels of a rail vehicle passing over the device, the cylinder of the fluid-cylinder element ( 2 ) in the direction of the track center. Apparatus according to claim 12, characterized in that the device is a on the inside of the rail track ( 8th ) arranged pressure rail ( 13 ), which are movably guided in the direction of track center and with the fluid-cylinder element ( 2 ) is connected in such a way that the marginal rims ( 10 ) and / or the wheels of a device running over the rail vehicle, the pressure rail ( 13 ) in the direction of the track center and thus the cylinder of the fluid-cylinder element ( 2 ) compress. Apparatus according to claim 13, characterized in that the pressure rail ( 13 ) on both sides in the direction of travel an approach help ( 11 ), which is chamfered towards the track center. Apparatus according to claim 13 or 14, characterized in that the pressure rail ( 13 ) is guided on at least one end. Apparatus according to claim 9, characterized in that the fluid-cylinder element ( 2 ) a Auffahrkopf ( 19 ) in the tread ( 20 ) of the rail track ( 8th ) is arranged. Apparatus according to claim 16, characterized in that the Auffahrkopf ( 19 ) is substantially hemispherical. Device according to one of claims 9 to 17, characterized in that the fluid-cylinder element ( 2 ) has a back pressure device, in particular a back pressure spring, which for fast return of the cylinder of the fluid-cylinder element ( 2 ) is set to the home position. Device for obtaining electrical energy in rail traffic, which is at least one on a rail track ( 8th ) arranged drive wheel ( 16 ), which on the rail track ( 8th ) is arranged such that the wheel rims ( 10 ) and / or the wheels of a device running over the rail vehicle the drive wheel ( 16 ) in a rotational movement, wherein the drive wheel ( 16 ) with means for generating electrical energy during a rotational movement of the drive wheel ( 16 ) connected is. Apparatus according to claim 19, characterized in that the drive wheel ( 16 ) for generating electrical energy with a generator ( 14 ) and / or a fluid pump ( 14 ) connected is. Device according to claim 19 or 20, characterized in that the drive wheel ( 16 ) via a gear stage with at least one means for generating electrical energy during a rotational movement of the drive wheel ( 16 ) connected is. Device according to one of claims 9 to 21, characterized in that in a plurality of fluid-cylinder elements ( 2 ) the fluid-cylinder elements ( 2 ) are arranged individually removable. Device for generating energy from electrical Energy in elevator systems, the elevator system at least one Carrying device which is arranged substantially vertically movable, characterized in that on the conveyor at least one of the adjacent parallel to the path of the conveyor Elements scanning wheel is arranged, with the wheel with at least a means for generating electricity is connected such that when moving the wheel's electricity is generated. Device according to claim 23, characterized in that that the means for generating electricity is a generator. Device according to claim 23 or 24, characterized in that the means for generating electricity is a fluid element. Device according to one of claims 23 to 25, characterized that the wheel is arranged elastically. Device according to one of claims 23 to 26, characterized that the wheel is mounted lockable in a holder. Device according to claim 27, characterized in that that the adjustment of the wheel depending on the direction of movement the conveyor he follows. Device according to claim 28, characterized in that that the wheel in an upward movement the conveyor no contact with the parallel to the path of the conveyor running Elements of the elevator system has.