DE102011054610A1 - Method for applying flowable snow and ice removal medium e.g. glycerol, on contact wire of electrically driven rail vehicle, involves recognizing traveling direction and/or position of wire, and applying medium on wire - Google Patents

Abstract

The method involves applying flowable antifreeze medium on a contact wire (4) of an electrically driven rail vehicle (1) by grinders (11a, 11b), where electrical energy of the contact wire is decreased by current collectors (2, 3). Traveling direction and/or position of the contact wire are recognized by a detection device e.g. sensor. The grinders are aligned transverse to the contact wire and parallel to each other. The current collectors including articulated linkage rods (8, 9) are extended from a retracted position to an extended position. Independent claims are also included for the following: (1) a device for applying flowable antifreeze medium as flowable snow and ice removal medium on a contact wire of an electrically driven rail vehicle (2) an electrically driven rail vehicle.

Description

The invention relates to a method and a device for applying antifreeze on a contact wire from which an electrically driven vehicle by means of a pantograph decreases electrical energy. Moreover, the invention relates to an electrically powered vehicle equipped with a device of this type. Such a vehicle is in particular a rail vehicle.

If the term "deicing medium" or "antifreeze" is mentioned here, these terms are synonymous.

Contact wires are commonly used, for example, to provide rail vehicles or other electrically powered vehicles, such as trolleybuses, with the required electrical energy. The transmission of electrical energy to the respective vehicle is usually carried out by pantographs that grind while driving along the contact wire or roll it.

At temperatures below freezing, so in particular in the winter months, there is a risk that the contact wire ices with the result that there is no proper contact between the contact wire and the pantograph. The interruptions or fluctuations in the energy supply caused thereby can lead to damage, in particular to the control of the rail vehicle. In particular, electronic components that are used in modern, computer-controlled control devices, prone to interference with the power supply.

Attempts have been made to prevent the icing of a contact wire by applying anti-freeze to the wire. A used for this purpose in practice, for example in the DE 20 2004 008 632 U1 Device described in more detail has a felt roll, which rolls on the contact wire while driving and is simultaneously soaked continuously with antifreeze. In the practical operation of such a device, it proves to be particularly problematic that large amounts of antifreeze drip uncontrollably from the role and cause significant contamination of the vehicle and the environment. In addition, the contact wire constantly changes its position in relation to the respective current collector due to variations in the respective vehicle or imprecise alignment of the carrier used to hold the contact wire and when cornering. These movements complicate the tracking of the role of the contact wire in addition.

Another possibility of the contact wire deicing is used since 1985 at the public transport companies of the Stadtwerke Solingen. The deicing device used there is mounted on the back of a conventional truck, which departs the distance to be deiced. The de-icing device itself comprises a guide arm, which is attached to the respective contact wire from below via a guide shoe modeled on a conventional current collector shoe. The guide arm additionally carries a first nozzle positioned in the region of the guide shoe, through which an air flow exits, and a second nozzle, via which the deicing fluid is discharged. The two nozzles are arranged so that the exiting from one nozzle deicing fluid is detected by the discharged from the other nozzle air flow and transported against the wire to be deiced. The form-fitting coupling of the guide arm to the contact wire via the guide shoe has the disadvantage that the de-icing device can only follow the contact wire dividing there in one direction, so that a manual intervention is required in each case around the guide shoe to be suspended in the required contact wire. In addition, there is a risk that the guide shoe loses contact with the contact wire in the event of road bumps or other circumstances triggered driving movements of the truck. Finally, the assembly of the deicing device on a lorry unsuitable for rough terrain requires that the contact wire to be deiced over its entire length is accessible from a street.

A similar designed and mounted on a truck device is used since 1991 for deicing the wires of the trolleybus lines of the city of Eberswalde.

In addition to the facilities in which the deicing is carried out in the manner described above by means of a sprayed on the contact wire deicing fluid is from the DE 23 24 387 C3 a deicing known, comprising a transversely oriented to enteisenden contact wire inductor. By means of the inductor, the wire section located in each case in its effective range is heated for a short time, so that the ice adhering there melts within a very short time. However, the problem is that this de-icing only lasts until the wire has cooled below the freezing temperature again. Therefore, this type of de-icing has not been enforced in practice, especially on busy routes.

To eliminate the disadvantages of the above-mentioned devices for deicing a contact wire, is in the DE 10 2004 045 904 B4 has been proposed to recognize the respective position of the contact wire by means of a suitable device and deploy the antifreeze by means of a spray that is controlled so that the antifreeze meets the contact wire with high accuracy in any driving situation. The accuracy of the application of antifreeze is so high that on the one hand sufficient wetting of the contact wire with antifreeze always guaranteed and on the other hand, the spread of antifreeze in the environment is reduced to a minimum. So it is possible in a particularly economical and resource-saving manner, even at temperatures below freezing to ensure the safe operation of electrically driven, connected via pantographs to a contact wire vehicles. At the same time, the pollution of the environment by the antifreeze applied in each case and the risk of contamination is reduced to a minimum.

In practice, the object has been found to provide a method and apparatus for deicing a contact wire, which allow a particularly simple and robust way, even under harsh operating conditions and simple maintenance reliable operation of a flowable deicing medium.

In addition, an electrically powered vehicle that decreases with a pantograph in a contact wire guided electrical energy should be created, in which even at temperatures below freezing, the risk of interruptions in the electrical contact between the pantograph and the contact wire is minimized.

The object stated above in relation to the method according to the invention has been solved by the order of flowable antifreeze on the contact wire in the manner specified in claim 1.

The object stated above in relation to the device for applying antifreeze to a contact wire from which an electrically driven vehicle decreases electrical energy by means of a current collector has been achieved according to the invention in that such a device has the features specified in claim 5.

Finally, the solution of the above-mentioned with respect to the electrically driven vehicle task is that such a vehicle is designed according to claim 16.

Advantageous embodiments of the invention are specified in the dependent claims and are explained below as the general inventive concept in detail.

In general, the invention proposes to design a grinder, via which the respective electrically operated vehicle, which is in particular a rail vehicle, comes into contact with the contact wire and to couple it to a device for discharging the antifreeze, that the contact wire wetted by contact with the wiper with the deicing medium.

Accordingly, in a method for applying free-flowing antifreeze on a contact wire from which an electrically powered vehicle by means of a pantograph decreases electrical energy, the antifreeze is applied by means of a grinder on the contact wire, is provided at its coming into contact with the contact wire antifreeze ,

Similarly, an inventive device for applying antifreeze on a contact wire from which an electrically driven vehicle by means of a pantograph decreases electrical energy, wherein the device comprises a grinder that comes in contact with the contact wire in operation and wherein the device in particular for Implementation of a method according to the invention is determined, characterized in that a device coupled to the grinder for applying the antifreeze is provided on the coming into contact with the contact wire area of the grinder, which applies the antifreeze such that the contact wire by touching contact with the grinder is wetted with the deicing medium.

An electrically driven vehicle according to the invention, which comprises a current collector for removing electrical energy carried in a contact wire, is accordingly characterized in that the vehicle is equipped with a device according to the invention for applying flowable antifreeze to the contact wire, which is operated in accordance with the invention.

The provision of the antifreeze on the contact wire contacting surface of the grinder of a device according to the invention can be provided by means of a device which applies antifreeze as a flowable deicing medium to the grinder. The deicing medium can be sprayed or sprayed onto the grinder.

The relevant grinder may be a grinder over which the rail vehicle removes electrical energy from the contact wire. However, it is also conceivable to provide a separate grinder in order to apply deicing medium according to the invention to the contact wire.

The application of the flowable deicing medium on the grinder can be linear or flat. For this purpose, the antifreeze agent can be applied via at least one outlet point formed in the surface of the grinder associated with the contact wire.

In this case, the deicing medium can be applied so that it is distributed over the width of the contact area between the contact wire and the grinder. For this purpose, depressions may be formed in the surface assigned to the contact wire, which depressions are formed in particular in the manner of grooves or grooves and into which the deicing medium is introduced by a feed device. In this embodiment, at least one outlet point is formed in the surface of the grinder coming into contact with the contact wire into which the device for applying the anti-freeze agent introduces the antifreeze. The upcoming in the depressions deicing medium is then removed from the contact wire and distributed as a result of the relative movement between the grinder and abutting contact wire on the surface of the grinder. A uniform distribution over the width and length of the contact wire associated with the contact surface can be achieved, for example, by the fact that the respective recess (s) extend in a zigzag shape over the contact wire associated with the contact surface.

Likewise, the application of the deicing agent can take place at one or more than a single, in particular narrowly limited, approximately punctiform outlet point or isolated, extending over a relative to individual points larger surface portion extending outlet areas of the grinder. The outlet points or outlet regions are preferably oriented such that the deicing medium emerging from them is in turn distributed by interaction of wire and wiper on the surface of the grinder.

The distribution taking advantage of the relative movement through the interaction of the slider and the contact wire can be designed so that the deicing medium is distributed by the grinder onto the wire, from there back to the grinder and then back to the wire, etc. This can be achieved, for example, by applying a larger quantity of deicing medium to one or more than one specific, in particular centrally located, location of the contact wire associated with the contact wire, which then removes the surface during grinding in a grinding direction in the longitudinal direction of the grinder - And herbewegung sweeping contact wire taken and spread on the surface of the grinder. Particularly suitable for this purpose is a viscous or pasty deicing medium.

If more than one point or more than one area for discharging the deicing medium is provided on the contact wire associated with the contact wire, then the application can take place simultaneously at all relevant points or areas in order to ensure a reliable supply of deicing medium with a simple design.

If the consumption of deicing medium is to be minimized in cases where more than one point or more than one area is provided for discharging the deicing medium, this can be done by applying only at the point or area which the medium is currently needed. For this purpose, a detection device for detecting the respective direction of movement and / or position of the contact wire can be provided on the grinder, which delivers a signal in response to which the output is effected from the point swept by the contact wire as the next point or the corresponding area. The detection of the position or direction of movement of the contact wire can be effected by a suitable sensor, which operates in particular in the manner of a proximity switch.

Also, the outlets over which the deicing medium is discharged may be disposed in or on the grinder so that the application of the deicing medium is stimulated by the contact wire as it sweeps over the grinder surface associated with the trolley wire. For this purpose, for example, on the grinder or in the vicinity of the type of mechanical, electrical, hydraulic or pneumatic valve switches or pumps acting elements can be provided by the locally locally limited to the contact wire associated grinding surface oppressive or in direct contact with the relevant elements activated contact wire. In a device according to the invention, in this case the respective outlet point is assigned a closing device which keeps the respective outlet point closed until the contact wire covers and opens the relevant closing device.

Of course, the above-explained possibilities of applying the deicing medium can be used alone or with one another in various combinations such that in each case an optimal Ausbringgebnis with minimal consumption of deicing medium is achieved.

The respectively provided for discharging the deicing medium, in the contact wire associated with the grinding surface formed openings or depressions may be formed by molded into the grinder surface holes. It may be expedient to form the rounded at the transition to the edge of the grinder surface of the opening to ensure an unobstructed outlet of the deicing medium.

If the respective rail vehicle has several grinders for removing the drive current from the contact wire, it can be advantageous for equalizing the application and for increasing the safety with which the contact wire is wetted with a sufficient amount of deicing medium when applying the deicing medium according to the invention more than one grinder or even on all grinders of the rail vehicle is provided.

If the depressions or openings from which the deicing medium emerges on the contact wire associated with the contact surface, elongated in the manner of grooves or grooves, these depressions or openings can be arranged in particular transversely to the direction of travel, obliquely or in certain patterns, so that a profiled surface structure results, in the depressions in operation each deicing can be present. The depressions / openings can thereby describe a continuous polyline or be divided into a plurality of separate sections, in each of which individually de-icing medium is fed or each receive in them by the contact wire flushed de-icing medium.

As an alternative or in addition to an application of the deicing medium via depressions or openings formed in the wiper surface assigned to the contact wire, the application can also take place via an absorbent means receiving the deicing medium. As such means brush, brush, sponge or felt materials are suitable, for example.

Likewise, it is conceivable to form the grinder itself as a carrier for the deicing medium. For this purpose, the grinder completely or in a contact with the contact wire section made of a material that acts as an antifreeze and is absorbed in the course of operation of him overreaching trolley wire. The relevant section may be carried by a support portion of the grinder or incorporated into such a support portion.

A controlled application of the deicing medium can also be achieved by keeping the depressions or openings through which the deicing medium emerges closed by means of a closing device assigned to them until the contact wire covers and opens the relevant closing device. Such a closing device can be formed for example by a sealing lip, which is opened by the contact wire when it comes in mechanical, in particular rubbing contact with the lip. The deicing medium then only exits where the lip is opened. Alternatively, other devices, such as brushes or felt elements and the like can be used, which release taking into account the viscosity of the defrosting medium used in each case only by the opening or depression kept closed by them in the normal state, if and at the Contact wire comes in contact with them during operation. The closure device can be designed, for example, so that the deicing medium is released in each case as a result of deformation of the respective closure device.

In addition to de-icing of the contact wire by the presence of deicing medium in the depressions or openings formed in the contact wire associated with the contact wire, it is also conceivable to spray or spray on the deicing medium, in particular without air, on the contact wire or the grinder. The spray or spray can be directed directly to the slider or be passed over it. In the case that the beam is directed across the slider, it leaves a media track on the slider wire surface associated with the contact wire, which is then picked up by the contact wire and distributed over the surface of the slider.

It is also conceivable to provide at the grinder or in the vicinity of a device which discharges gushing deicing medium to the contact surface associated with the contact wire, from where the deicing medium is then picked up by the contact wire moving relative to the grinder during operation and distributed over the surface of the grinder becomes. In this case, at least one device can be provided on the grinder or in its vicinity, which captures excess deicing medium and optionally returns it to the feed circuit for reuse. The device in question may, for example, comprise at least one outflow opening formed in the surface of the contact wire associated with the contact wire or a collecting device arranged in the region of the grinder.

Another possibility for a particularly uniform application of the deicing medium is that the grinder consists wholly or in sections of a porous material which is fed via a feed device with the deicing medium.

For distributing the deicing via the contact wire associated with the grinding surface can be used in addition to the contact wire itself with a corresponding arrangement of the outlet openings or sinkings and the creep or air flow, which is formed by the flow of the slider during driving wind.

The distribution of the deicing medium to the outlet openings or sinkings provided on or in the contact wire assigned to the contact wire can be carried out by distributing the deicing medium by means of known progressive distributors or throttle distributors or by utilizing the capillary action or by the airstream flow ,

The application of the deicing medium can, as already mentioned, be carried out by means of outlet openings or depressions provided in or on the respective grinder. Likewise, the application can take place via suitable nozzle elements which are arranged in the vicinity of the contact wire associated with the contact surface. For this purpose, for example, appropriate dispensing devices can be provided between or next to the grinder (s) of a current collector.

The application of the deicing medium does not necessarily take place via those grinder, over which the rail vehicle decreases the electrical drive energy, but it can be provided a separate, designed in the manner explained above grinder. This may have the advantage that the relevant grinder can be optimized with respect to the order of the deicing medium and be designed without regard to other functions of the grinder. This results in a minimized expenditure on equipment when the additional, provided for the order of the deicing medium grinder is attached to the pantograph, which also carries the intended for the transmission of electrical energy grinder.

The operation-dependent application of the deicing medium can take place in that the deicing medium is pressurized during operation recording and in the sense of hydraulic delivery by the media pressure a cylinder or bellows is actuated, which is spring loaded so that it automatically closes when the de-icer is turned off. In this way, an additional drive unit can be saved. In a corresponding manner, a pneumatic delivery can be carried out depending on the operation.

Depending on which of the above-explained types of application is selected, the deicing medium may be liquid, thixotropic, pasty or solid substances. As de-icing effective ingredients, these substances may include glycol, glycerin, an alcohol and / or a salt. In addition, the deicing medium may contain water, fat, thickener, bentonite, aerosil or the like to adjust, for example, certain flow or wetting properties.

The deicing medium can be brought to the respective outlet opening or recess by means of known conveying and metering devices.

In order to minimize the consumption of deicing medium, it may be expedient to provide in a device according to the invention a device for detecting the position of the contact wire in relation to the wiper to be wiped with deicing medium for a position dependent application of the deicing medium. The device in question can be equipped with a suitable sensor device, by means of which the respective position of the contact wire is detected in relation to the grinder, on which the deicing medium is applied. The application of the deicing medium then takes place only in the area of the grinder, which is currently covered by the contact wire. In this way, the deicing medium can be concentratedly applied to the contact wire and prevent larger amounts of unused deicing medium from entering the environment from the grinder.

The position detection can be carried out, for example, with the aid of one or more load cells or deformation sensors which detect the forces acting on the respective wiper forces. Such sensors are already present in modern pantographs to measure the contact forces with which presses the grinder or the pantograph against the contact wire. According to one embodiment of the invention, the contact wire position is calculated by means of a measuring and evaluation device from the comparison of the force signal of one or more such sensors and this information is used to control the defrosting. If, for example, a sensor is associated with each end of the grinder in the longitudinal direction of the grinder, then the sensor assigned to one end indicates a higher contact pressure if the distance between the contact wire and this sensor is smaller than the distance between the contact wire and the sensor assigned to the other end, so that the respective current position of the contact wire on the wiper results with sufficient accuracy from a comparison of the forces absorbed by the sensors.

Likewise, in order to determine the position of the contact wire on the wiper, the torsional moments, deformations or spring movements that bear the total load on the respective wiper or the pantograph carrying the wiper can be measured. This is exploited to determine the contact wire position that caused by the force of the contact wire to the pantograph deformation of the pickup. In order to improve the signal detection, in particular elastically executed additional elements can be provided which deform more in proportion to the deformation of the current collector and thus enable a simplified signal detection.

Strain gauges, piezoelectric elements or other conventional displacement transducers can be used as measuring elements for detecting the deformations of the current collector as a whole, of the grinder itself or of the additional elements provided to simplify the signal elements.

The relevant measuring elements can be arranged, for example, on or in the grinder, on joints of the grinder-bearing pantograph of the current collector, on a linkage part of the pantograph or on the current collector with the grinder-carrying rail vehicle itself. An assembly on the rail vehicle has the advantage that the sensor does not have to be laboriously protected against the electrical voltage of the contact wire. The dynamic forces generated by movement of the rail vehicle and by the mass of the pantograph can be compensated for by the respectively used evaluation device by using appropriate mathematical correction and filtering methods.

Another possibility for detecting the respective position of the contact wire in relation to the grinder or the device provided for deploying the deicing medium is that the magnetic field generated by the current-carrying contact wire is detected with the aid of magnetic field sensors (eg Hall sensors). Due to the differences in the signal strengths recorded by several sensors, the contact wire position relative to the sensors can be calculated. The sensors can also be carried by the current collector, which carries the grinder, on which in accordance with the invention the deicing medium is applied. A plurality of magnetic field sensors can also be designed as a stack, so that in each case the sensor closest to the contact wire emits a signal which differs clearly from the signals of the other sensors. Typically, magnetic field sensors, which emit a signal that becomes more proportional to the approach of the contact wire, can be arranged so that the sensor closest to the contact wire emits the strongest signal from all the sensors.

Regardless of which type of devices are used to detect the current position of the contact wire, these devices can each be directly coupled to a switching device, which, when the respective associated device emits a corresponding signal, the inflow of deicing medium to the current from Contact wire overreached area of the grinder releases. Alternatively, a central switching device can be provided, which in each case acts on the line leading to the area swept by the contact wire of the contact wire with deicing medium as a function of the detected position of the contact wire.

Another possibility for the practical implementation of the means for detecting the current position of the contact wire advantageously for minimizing the amount of deicing medium applied in each case relative to the wiper to be wiped with the deicing medium is that the position of the contact wire is detected with one or more than one conventional laser rangefinder becomes. Advantageously, in each case such a laser rangefinder is seen in the longitudinal direction of the grinder attached to the end of the grinder. Further possibilities for mounting the laser distance measuring device are the linkage of the pantograph carrying the respective slider or the rail vehicle itself.

Alternatively or additionally, the current position of the contact wire in relation to the wiper to be wetted with the deicing medium may be detected with one or more than one inductively operating sensor giving a signal for releasing the deicing medium supply due to the change of an electromagnetic field is assigned by the contact wire currently swept area of the grinder. The respective device for inductively detecting the position of the contact wire can be designed as a sensor extending uniformly over the length of the respective grinder or through a plurality of proximity sensors arranged in particular at uniform intervals.

Another way of detecting the position of the contact wire in relation to the Deicing medium to be wetted grinder is to detect the inclination or deformation of the pantograph relative to the vehicle. Also, the currently occurring deformation or inclination of the grinder is a clear indication of where the contact wire is currently on the grinder, or a measure of the place where currently exerted by the slider against the contact wire contact force acts. The respective current deformation or inclination of the grinder can be detected by directing a light beam emanating from the vehicle roof against the current collector in such a way that it reflects on the current collector. By detecting the deflection angle, the inclination of the pantograph can be determined, which in turn is a measure of the contact wire position. The rays reflected by the current collector can be detected, for example, by means of a photosensitive sensor field.

Finally, it is conceivable to determine the respectively current contact wire position with respect to the wiper to be wiped with deicing medium by making an image of the wiper to be wiped with the deicing medium and the contact wire thereon continuously or within a certain time interval using an image capture device, and With an image evaluation device, the position of the contact wire with respect to the grinder is determined.

Exposure to the environment by excess antifreeze dripping from the grinder provided on the contact wire for application of the antifreeze may be minimized by the apparatus of the invention comprising means for capturing the excess antifreeze applied to the grinder. This means for collecting the excess antifreeze can be performed, for example, as a collecting trough, which is arranged in combination with the grinder so that falling from the grinder antifreeze falls into the gutter and can be fed from there via a suitable drain line for reuse. It is also possible to arrange the means for collecting the excess antifreeze at a separate location of the vehicle equipped with a device according to the invention. For this purpose, for example, another provided on the respective vehicle grinder can be used. This can in particular be part of a current collector, via which the respective vehicle decreases electrical energy from the respective contact wire to be kept free of ice. In the case of a trough-shaped configuration of the device for capturing the antifreeze, it is expedient if the collecting device extends aligned transversely to the contact wire.

The invention will be explained in more detail with reference to a drawing illustrating an exemplary embodiment. Each show schematically:

1 a rail vehicle in a side view;

2 the grinder of a pantograph for the rail vehicle in a perspective view.

The electrically powered rail vehicle 1 , which is for example a locomotive for a passenger train, has two pantographs designed in a conventional manner 2 . 3 for removing the electrical energy required for the drive from a contact wire 4 in a conventional manner by means of regularly spaced masts 5 . 6 above the rail vehicle 1 provided track 7 is held.

The pantographs 2 . 3 each comprise a rod formed from articulated rods 8th . 9 that comes from a retracted position, in which it is close to the roof 10 of the rail vehicle 1 is present, in an extended position is extendable, in which it is attached to its free end grinder 11a . 11b ; 12a . 12b elastic against the contact wire 4 suppressed.

The grinders 11a . 11b ; 12a . 12b are each transverse to the contact wire 4 and aligned parallel to each other. In that during the practical use mainly of the contact wire 4 swept area 13a his the contact wire 4 associated surface 13 are in at least one grinder 11a of the pantograph 2 at regular intervals over the length of the grinder 11a distributed as Auslassstellen serving depressions 14a - 14e formed. At the bottom of the depressions 14a - 14e each opens a supply hose 15a - 15e , about the antifreeze or de-icing agent from a facility 16 for applying this agent in the respective depression 14a - 14e is encouraged.

In the grinder 11a can additionally sensors 17 let in, which capture, at which position the contact wire 4 on the surface 13 of the grinder 11a located. The device 16 then promotes only to the depressions 14a - 14e Antifreeze, each adjacent to the contact wire 4 are arranged. At the in 2 Operating situation shown these are the depressions 14c and 14d ,

From the depressions 14a - 14e the antifreeze reaches the surface 13 of the grinder 11a and wets the contact wire resting there 4 evenly, making sure that yourself even at below freezing temperatures on the contact wire 4 no ice forms.

The grinders 12a . 12b of the rear in the direction of travel F pantograph 3 is in each case a trained in the manner of a gutter, parallel to the grinders 12a . 12b aligned facility 18 . 19 for catching on the contact wire 4 adhering to excess antifreeze, attached to the grinders 12a . 12b is stripped off. That in the reception facilities 18 . 19 trapped antifreeze is via a return line 20 to the device 16 returned and reused there after a suitable filtering.

LIST OF REFERENCE NUMBERS

F

direction of travel

1

track vehicle

2, 3

pantograph

4

contact wire

5, 6

masts

7

track

8, 9

Linkage of the pantographs 2 . 3

10

Roof of the rail vehicle

11a, 11b

Grinder of the pantograph 2

12a, 12b

Grinder of the pantograph 3

13

surface

13a

from the contact wire 4 swept area of the surface 13

14a-14e

depressions

15a-15e

supply hoses

16

Device for applying antifreeze

17

sensors

18, 19

Device for collecting excess antifreeze

20

Return line

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202004008632 U1 [0005]
• DE 2324387 C3 [0008]
• DE 102004045904 B4 [0009]

Claims (18)

Method for applying flowable antifreeze to a contact wire ( 4 ) from which an electrically powered vehicle ( 1 ) by means of a pantograph ( 2 . 3 ) Electrical energy decreases, characterized in that the antifreeze (by means of a grinder 11a ) on the contact wire ( 4 ) is applied, at the with the contact wire ( 4 ) in contact surface ( 13 ) Antifreeze is provided. A method according to claim 1, characterized in that the antifreeze on the with the contact wire ( 4 ) in contact surface ( 13 ) of the grinder ( 11a ) by means of a facility ( 16 ) containing the antifreeze as a flowable deicing medium on the grinder ( 11a ). Method according to one of the preceding claims, characterized in that the antifreeze via at least one in the the contact wire ( 4 ) associated surface of the grinder ( 11a ) molded outlet point ( 14a - 14e ) is applied. A method according to claim 1 or 2, characterized in that the deicing medium on the grinder ( 11a ) is sprayed or sprayed on. Device for applying antifreeze to a contact wire ( 4 ) from which an electrically powered vehicle ( 1 ) by means of a pantograph ( 2 . 3 ) decreases electrical energy, wherein the device comprises a grinder ( 11a ) in contact with the trolley wire during operation ( 4 ) and wherein the device is intended in particular for carrying out a method according to any one of claims 1 to 4, characterized by a with the grinder ( 11a ) coupled device ( 16 ) for applying the antifreeze on the with the contact wire ( 4 ) coming into contact area of the grinder ( 11a ) such that the contact wire ( 4 ) by touching contact with the grinder ( 11a ) is wetted with the antifreeze. Device according to claim 5, characterized in that the device ( 16 ) for applying antifreeze coupled grinder ( 11a ) for removing electrical energy from the contact wire ( 4 ) is provided. Device according to one of claims 5 or 6, characterized in that in the with the contact wire ( 4 ) in contact surface ( 13 ) of the grinder ( 11a ) at least one outlet point ( 14a - 14e ) into which the establishment ( 16 ) for applying the antifreeze, the antifreeze brings. Apparatus according to claim 7, characterized in that the outlet point zigzag over the with the contact wire ( 4 ) in contact surface ( 13 ) of the grinder ( 11a ). Apparatus according to claim 7, characterized in that at the with the contact wire ( 4 ) in contact surface ( 13 ) of the grinder ( 11a ) one or more isolated outlet points ( 14a - 14e ), in which the establishment ( 16 ) for applying the antifreeze, the antifreeze brings. Apparatus according to claim 9, characterized in that the application of the antifreeze by the device ( 16 ) for applying the antifreeze simultaneously at all outlet points ( 14a - 14e ) he follows. Device according to one of claims 7 to 10, characterized in that it comprises a detection device ( 17 ) for detecting the respective direction of movement and / or position of the contact wire ( 4 ) and that the detection device ( 17 ) supplies a signal depending on the output from the next as the next from the contact wire ( 4 ). Device according to one of claims 7 to 11, characterized in that the respective outlet point ( 14a - 14e ) is associated with a locking device, the respective outlet point ( 14a - 14e ) is closed until the contact wire ( 4 ) sweeps over the relevant locking device and opens. Device according to one of claims 5 or 6, characterized in that on the grinder ( 11a ) an absorbent or porous anti-freeze receiving agent is provided into which the device ( 16 ) for the application of the forest protection agent which introduces forest protection agent and which in operation with the contact wire ( 4 ) comes into contact. Device according to claim 5 or 6, characterized in that the grinder ( 11a ) at least in the area of its with the contact wire ( 4 ) in contact surface ( 13 ) completely or in one with the contact wire ( 4 ) is made of a material which acts as an antifreeze and in the course of operation of his sweeping contact wire ( 4 ) is recorded. Device according to one of claims 5 to 14, characterized in that it comprises a device ( 18 . 19 ) for collecting surplus, on the grinder ( 11a ) applied antifreeze comprises. Electrically powered vehicle, with a pantograph for taking off in a contact wire ( 4 ) guided electrical energy, characterized in that the vehicle ( 1 ) with a device designed according to one of claims 7 to 15 and operated according to one of claims 1 to 6 for applying flowable antifreeze to the contact wire ( 4 ) Is provided. Vehicle according to claim 15, characterized in that the grinder ( 11a ) of the device for applying the flowable antifreeze to the current collector ( 2 . 3 ) is provided. Vehicle according to claim 16, characterized in that the grinder ( 11a ) of the device for applying the flowable antifreeze by the current collector ( 2 . 3 ) is formed.

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