EP2814712A1 - Endstück für eine partikelstreuanlage für ein schienenfahrzeug - Google Patents
Endstück für eine partikelstreuanlage für ein schienenfahrzeugInfo
- Publication number
- EP2814712A1 EP2814712A1 EP13704103.4A EP13704103A EP2814712A1 EP 2814712 A1 EP2814712 A1 EP 2814712A1 EP 13704103 A EP13704103 A EP 13704103A EP 2814712 A1 EP2814712 A1 EP 2814712A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piece
- end piece
- particle
- tube
- scattering system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
- B61C15/08—Preventing wheel slippage
- B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
Definitions
- the present invention relates to an end piece for a particle scattering system of a rail vehicle and a particle scattering system for a rail vehicle with such an end piece and a corresponding rail vehicle.
- the effect of a brake or a drive device depends crucially on the adhesion between the wheels and the rail, because a driving force or braking force is transmitted to the rail via the wheels.
- a parameter called the adhesion coefficient or adhesion coefficient determines the amount of braking force or driving force that can be transmitted to the rail. If more force is exerted on a wheel to brake or accelerate the rail vehicle than can be accommodated via the wheel-rail contact according to a prevailing frictional connection, this can lead to a sliding, spinning or locking of the wheel, which is an undesirable condition , The adhesion between a wheel and a rail depends heavily on the friction conditions between the wheel and the rail.
- rail vehicles may be equipped with particle scattering systems, via which a spreading material, for example sand, can be applied to a rail. Due to the spreading material, the adhesion between the wheel and rail and thus the adhesion can be improved.
- An object of the present invention is to improve the operation of a particle scattering system of a railway vehicle.
- a rail vehicle or train may designate one or more cars with or without their own drive and / or a towing vehicle in any combination.
- a rail vehicle may have railcars.
- a particle scattering system may be designed to provide grit in the form of particles for application to a rail, in particular in the region of a wheel-rail contact.
- a particle scattering system can have one or more storage containers for receiving and providing spreading material or particles.
- Grit can be composed in particular of particles. The particles may be suitable for improving a traction between the rail and the wheel, for example by increasing friction between the wheel and the rail.
- Grit may include, for example, sand and / or ceramic particles.
- a particle scattering system may be controllable by an electronic control device in order to provide and / or dispose of particles to a desired extent.
- a particle scattering system may in particular have a particle guide device.
- a particle guide device can be designed to guide a particle flow provided by the particle scattering system, in particular in the direction of the rail.
- a particle guide device can be rigid, for example as a particle guide tube, or flexible and / or elastic, for example as a particle guide tube.
- a stream of air can be mixed with a particle stream, in particular in the case of a pneumatic particle scattering system. It can be provided that the particle scattering system is designed to introduce particles pneumatically, mechanically and / or by utilizing gravity in a particle guide device.
- An end piece for a particle scattering system can do this be formed to be attached or attachable to one of the rail facing or zuwendbaren end of a particle guide device.
- the end piece can in particular be formed separately from the particle guide device and / or be attached or attachable to the particle guide device. It is conceivable that the end piece can be attached to a particle guide device by means of a suitable fastening device.
- An assembled state of the tail may be a state in which the tail is attached to the particle guide. In particular, in an assembled state, the end piece can be attached to the particle guide device such that a particle flow can flow from the particle guide device into the end piece, through the end piece and out of the end piece.
- a fastening device may comprise, for example, adapters and / or a clamp arrangement and / or a screw device.
- a separate end piece may facilitate the maintenance and repair of the particle scattering system, as an end piece is particularly easily accessible.
- An end piece may generally have an inlet opening and an outlet opening. Between the inlet opening and the outlet opening, a particle flow space may be formed, in which a particle flow is able to flow from the inlet opening to the outlet opening.
- the outlet opening can be an opening into the environment or the outside area, through which in particular a particle flow is able to flow out of the end piece into the open air and onto the rail.
- An inlet opening may be formed such that in the mounted state of the end piece, a particle flow from a particle guide device can flow into the end piece and / or the particle flow space via the inlet opening. It is conceivable that an inlet opening in the mounted state defines a transition from the particle guide device to the end piece, in particular for a particle flow.
- An exit opening may be formed bevelled.
- An end piece can be a flexible tail. In particular, such a flexible end piece is less sensitive to collisions and mechanical damage than a rigid end piece. For example, an end piece may be considered flexible if, in an assembled and / or unmounted state, the exit opening moves and / or moves relative to the entry opening leaves.
- a connected via a flexible connection with a P can be regarded as a flexible end piece.
- a flexible end piece may have one or more elastic components. It is conceivable that in an assembled state, the inlet opening is attached to a corresponding flow outlet of the particle guide device.
- An end piece may have a longitudinal extent, which comprises the outlet opening and the inlet opening. It is conceivable that the longitudinal extension of the end piece goes beyond the inlet opening.
- the end piece may form a collar-like structure, which is designed to surround a part of a particle guide device. Such a collar-like structure may be provided for attaching the end piece to the particle guide device. It can be provided that the input opening is arranged in the interior of the end piece.
- a particle flow area may be surrounded by an interior wall that may define the particle flow space.
- An exit opening-side end face of the end piece can point in the direction of the outside area. It is conceivable that a surface normal of an exit opening-side end face is parallel to the surface normal of the cross-sectional area of the exit opening. It may be expedient if the cross-sectional area of the outlet opening is equal to or greater than the cross-sectional area of the inlet opening. Alternatively or additionally, it may be provided that a flow cross-sectional area defined by the outlet opening for the particle flow is equal to or greater than a flow cross-sectional area for the particle flow defined by the inlet opening.
- the diameter and / or the cross-sectional area of the particle flow space of the end piece increases from the inlet opening to the outlet area.
- the end piece can be designed such that its minimum diameter of the inlet opening, the outlet opening and the particle flow space corresponds at least to the diameter of an opening of the particle guide device, with which the end piece is connected or connectable, and / or at least the smallest diameter, which of the Pumbleelleitein- Direction is provided for a particle flow.
- an end piece has an outer diameter which extends over a longitudinal extent of the Can change tail.
- the outer diameter may be defined as the diameter of an outer wall of the tail, which is in touching contact with an environment of the tail, in particular with outside air.
- an outer diameter of the end piece is reduced on the output side.
- an inner diameter and / or a flow cross section of the end piece such as an inner diameter, a flow cross section of a particle flow space and / or a first piece of tubing, increases toward the exit opening and / or exit opening side.
- a section of the end piece can be designed such that, on the one hand, the inner diameter of the end piece increases toward the outlet opening and / or the outlet opening side, and, on the other hand, the outer diameter of the end piece narrows.
- a wall thickness of a hose piece surrounding a first hose piece and / or optionally a wall thickness of a hose piece forming a front side becomes thinner on the outlet opening side and / or the outside diameter of the outer hose piece and optionally of the hose piece forming the end face tapers.
- An exit port side taper or enlargement may relate to the exit port and / or an area surrounding the exit port.
- a piece of tubing may be flexible and / or elastic, such as a tube.
- An elastic piece of tubing may be made of an elastic material and / or comprise an elastic material.
- An elastic material may in particular comprise or be a rubber-containing or rubber-like material and / or a silicone material.
- an elastic piece of tubing be formed electrically non-conductive or electrically insulating. It is also conceivable that a piece of tubing is rigid, such as a hose sleeve. A rigid piece of tubing may be electrically conductive. A rigid tube piece can be made of metal and / or an inelastic plastic, for example. A piece of hose can be general an inlet, an outlet and a hollow and / or fillable hose inner region, which connects input and output with each other. It is conceivable that an end piece comprises at least one functional device. Functional devices may be generally electrically powered or operable devices. A device may be considered electrically powered or electrically operable when operable by the supply of electrical energy.
- a functional device may be a device which is capable of fulfilling one or more desired functions during operation.
- a functional device may be a controllable device and / or comprise an electronic control device or be designed as such. It is conceivable that a functional device comprises, for example, a sensor device or a heating device or is designed as such.
- a sensor device may be a temperature sensor device which is designed to measure a temperature at one or more points of the end piece. For this purpose, the temperature sensor device can have one or more suitable temperature sensors.
- a temperature sensor device may be designed to determine the temperature within and / or at an edge of a particle flow space in the end piece and / or at the outlet opening and / or within a hose piece, such as a first piece of hose or an outer piece of hose, and / or a temperature of a heater to eat.
- a temperature sensor device may comprise a thermostat.
- a conveyor sensor device may be designed to detect a particle flow flowing through the end piece in the particle flow space and / or a particle flow emerging from the end piece.
- a conveyor sensor device may be designed to detect or determine the particle flow optically, electrically or in another suitable manner. In particular, the conveyor sensor device may be designed to detect an electrical charge distribution and / or the shift of an electrical charge distribution in a particle flow.
- the conveyor sensor device may be designed to detect the electrical capacitance and / or changes in the electrical capacitance of the particle flow.
- the conveyor sensor device and / or a control device can be configured to determine the density of the particle flow based on the capacity and / or capacity changes of the particle flow. It is conceivable that the conveyor sensor device is designed to detect a charge shift generated by a flow of the particles.
- the physical effect can be utilized that particles of a grit have surface charges that can be generated, for example, by friction effects. If such charged particles move in a particle stream, the charges shift, as a result of which mirror charges can result, for example, in a probe element or an antenna of a conveyor sensor device.
- the charges may be stochastically distributed, so that there is no uniform charge current in a particle flow.
- the conveyor sensor device may accordingly comprise one or more sensor elements or electromagnetic scanning elements capable of detecting electrical and / or magnetic fields, in particular time-varying electrical or magnetic fields.
- a probe element or sensor element may be referred to as an antenna.
- a conveyor sensor device may comprise one or more sensor elements or sensing elements, which are arranged around a particle flow space of the end piece and / or surrounding it.
- an antenna may be provided which surrounds the particle flow space in an annular manner.
- the conveyor sensor device can in particular have at least two sensing elements which can be arranged at a defined distance from each other.
- the conveyor sensor device or a control device connected therewith for data transmission can be designed to determine a particle flow from a detected electrical charge distribution and / or a density of the particle flow from a detected electrical capacitance of the particle flow. It can be provided, in particular, that the conveyor sensor device has an antenna which determines the particle flow and / or electrical landing shifts in the particle flow and / or a capacity and / or capacity change of the particle flow and / or a density of the particle flow can detect and / or determine.
- the antenna is associated with a suitable control device which is able to determine a density and / or a particle flow.
- a heating element such as a heating coil or heating foil
- the conveyor sensor device can be integrated into the heating device.
- the conveyor sensor device has a separately executed antenna.
- An electronic control device may generally be designed to receive and / or transmit and / or evaluate data and / or to control one or more functional devices or other controllable devices, for example based on data. Such data may be stored in the controller and / or based on sensor signals from one or more sensor devices and / or be control parameters.
- a control device may be designed to control a device based on sensor signals received from one or more sensor devices and / or control parameters.
- the activation of a functional device may include, for example, supplying the device with electrical energy.
- the amount of electrical energy can be adjusted or controlled by means of the control device.
- Electrical energy can be provided to a functional device, for example in the form of an electric current or in the form of electromagnetic radiation, for example in the form of microwaves and / or by induction.
- a measure of the electrical energy provided for the supply can be adjustable, for example, by varying a supply voltage and / or a current intensity and / or a radiation intensity and / or a frequency and / or a pulse width.
- a heater may be a heater that is capable of converting electrical energy into heat.
- a heating device may in particular comprise one or more heating elements.
- a heating element may be a heating wire, which may be wound into a heating coil.
- a heating element may be formed as a heating foil.
- a heater may include supply lines and / or a source of electrical energy.
- a heating wire can be connected via two seamless supply lines with electric Be supplied with electricity.
- a seamless supply line can be a line that consists of a part of the heating wire, which is not used for heating. Such a supply line can be produced, for example, by winding a part of the heating wire intended for the supply of electric current with conductive material in order to short-circuit it. The wrapped part of the heating wire then substantially does not contribute to the heating effect of the heating element.
- a heating coil may be connected in such a way that only a part of its winding is used for heating, in particular a part facing an output opening of the end piece.
- the other part of the coil can serve for stabilization and power supply.
- a control device may be designed to control a particle scattering system, in particular a conveying device and / or a metering device of a particle scattering system.
- the activation of a particle scattering system can in this case mean the activation of the particle scattering system, in particular of the conveying device and / or metering device, in such a way that the particle flow fed into or conveyed into the particle guide device changes.
- the activation of the particle scattering system comprises the transmission of control parameters to the particle scattering system and / or a control device of the particle scattering system.
- Data transmission can be generally conducted, for example via a metallic or optical conductor, and / or via radio.
- devices that are connected or connectable for data transmission may comprise a device suitable for data transmission, which may comprise, for example, a line, a transmitter and / or a receiver.
- a common control device which can be connected to more than one functional device of the tail and / or can be designed for driving a further device such as the particle scattering system.
- the functionality of several control devices can be brought together in a common control device.
- a protective jacket may be designed to protect material or structures surrounded by it from mechanical damage.
- a protective sheath may be flexible, such as a fabric.
- Such a fabric may be, for example, metal and / or glass fibers and / or other fibers include.
- a protective sheath may be formed to be more resistant to mechanical damage than a material that it surrounds.
- a protective jacket is designed to be electrically conductive.
- Such a protective jacket can be designed as a reference potential for one or more of the functional devices of an end piece, for example by an electrically conductive line connecting the protective jacket to at least one of the functional devices.
- a protective jacket can at least partially surround an end piece, in particular an outer circumference of the end piece, for example an outer circumference of an outer hose piece, and / or an exit opening side end face of the end piece.
- a protective jacket may be glued or vulcanized on the end piece, for example on a first and / or outer hose piece.
- An end piece may generally have at least one first piece of hose, which may be elastic or rigid.
- a piece of tubing may generally completely or at least partially surround another piece of tubing when, for example, completely or partially surrounds an outer circumference of the other piece of tubing, such as over part of the length of the length of tubing.
- the first piece of tubing may be at least partially received in an outer length of tubing and / or at least partially surrounded by an outer length of tubing.
- the first piece of hose and the outer piece of hose can touch each other.
- the outer tube piece does not cover an outlet opening-side end face of the first tube piece.
- the outer piece of tubing may be resilient.
- the outer tube piece may extend in the direction of a particle guide device and / or the inlet opening of the end piece beyond the first tube piece. This offers the possibility of producing a flexible attachment to the particle guide device via the outer tube piece.
- the first tube piece and the outer tube piece are elastic tube pieces which may have different materials, in particular different silicone materials. It is generally conceivable that the thermal conductivities of different pieces of hose differ from each other. Maybe the Thermal conductivity of the first tube piece to be greater than the thermal conductivity of an outer tube piece. In general, it may be expedient if the heat conductivity of a piece of tubing which at least partially surrounds or at least partially accommodates another piece of tubing is less than the thermal conductivity of the piece of tubing surrounded or received by it. Thus, there is a heat insulation of the tail to the outside.
- a heating device or a heating element may in particular be embedded in the first tube piece and / or be in contact and / or heat-transmitting contact with a first piece of tube.
- an end piece has a first piece of hose, which is at least partially surrounded by an outer piece of hose with a lower thermal conductivity or at least partially received therein. This results in a heat insulation to the outside.
- a heater or heating element may be received within and / or embedded within the first length of tubing or disposed between the first length of tubing and the outer length of tubing so as to be in contacting or thermally conductive contact with the first length of tubing.
- the end piece has a rigidly formed connection piece, which can be arranged on the inlet opening side.
- a connecting piece can serve for stabilizing and / or connecting the end piece with a particle guide device, in particular for connection to a particle lead tube. If an end piece comprises a functional device, this functional device can be formed in touching contact with the end piece.
- the functional device may be wholly or at least partially received within the tail and / or embedded, such as within a first piece of tubing or within an outer tube piece and / or between a first piece of tubing and an outer length of tubing of the end piece. It is also conceivable that a functional tion of the tail is supported or held by the tail, such as on an outer periphery of the tail.
- a functional device can be encapsulated for embedding with a material of a piece of hose. This may be particularly useful for embedding heating elements such as heating wires.
- One or more than one functional means may be at least partially disposed between a first length of tubing and an outer length of tubing and / or between a first length of tubing and an inner length of tubing.
- the functional device may be in contact and / or heat-conducting contact with the first tube piece and / or inner tube piece.
- the functional heat seal comprises a heating device or is designed as such, the heat generated by the heater can thus be transferred well to the inner region of the tail.
- a protective jacket can surround the functional devices of the tail.
- the present invention relates to an end piece for a particle scattering system for a rail vehicle.
- the end piece comprises at least one elastic hose piece and at least one electrically operated or electrically operable functional device; wherein the tail is flexible.
- an elastic piece of tubing the flexibility of the end piece can be easily achieved.
- an operation of the end piece and / or the particle scattering system can be monitored and / or controlled.
- the at least one functional device can be connected or connectable to the transmission of data and / or to the power supply with the particle scattering system, in particular a control device of the particle scattering system.
- the at least one functional device may comprise a heating device and / or a sensor device and / or an electronic control device.
- the tail can be heated at low temperatures to to prevent icing and to ensure a sufficient flow of particles.
- important operating parameters such as temperature or the conveyed particle flow can be measured at a relevant point.
- the particle flow that actually flows through the end piece can be detected.
- disturbances in the particle guide can be determined.
- the at least one functional device may comprise an electronic control device, which is designed to control the particle scattering system.
- control of the particle scattering system can be done decentralized and adapted, for example, to changing requirements.
- maintenance can be facilitated.
- the at least one functional device comprises an electronic control device which is capable of receiving sensor signals from a conveyor sensor device. This allows the monitoring of the particle flow and can facilitate, for example, the control of the particle scattering system.
- the electronic control device can be a common control device, which can also be connected or connectable to other functional devices and / or which is also able to control the particle scattering system.
- the conveyor sensor device may be a functional device of the end piece.
- the electronic control device is designed to control the particle scattering system based on the sensor signals from the conveyor sensor device.
- the controller can be a controller.
- a very short control or regulating loop can be formed, which is able to control the particle scattering system based on an actually arriving at the tail particle flow.
- the at least one functional device may comprise an electronic control device which is capable of receiving sensor signals from a temperature sensor device. This makes it possible to consider a temperature during operation.
- the temperature sensor device may be a functional device of the end piece.
- the electronic control device can be a common control device, which can also be connected or connectable to other functional devices and / or which is also able to control the particle scattering system.
- the at least one functional device may further comprise a heating device.
- the heating device can be controlled by an electronic control device.
- the control device may be designed to control the heating device based on sensor signals from the temperature sensor device.
- an efficient heating of the tail can be done.
- each tail can be controlled individually as needed.
- the invention also relates to a particle scattering system for a rail vehicle with a particle guide device, to which at least one end piece described herein is attached or attachable.
- the invention relates to a rail vehicle with a particle scattering system described herein.
- FIG. 2 shows a second variant of an end piece for a particle scattering system
- FIG. 3 shows a third variant of an end piece for a particle scattering system
- FIG. 4 shows a fourth variant of an end piece for a particle scattering system
- Figure 5 shows a fifth variant of an end piece for a particle scattering system
- FIG. 6 shows a sixth variant of an end piece for a particle scattering system
- Figure 7 shows a seventh variant of an end piece for a particle scattering system.
- FIG. 1 shows a first variant of an end piece 20 for a particle scattering system for a rail vehicle.
- the end piece 20 is connected to a particle guide tube 1 of the particle scattering system.
- the connection is made in this example via a received in the guide tube 1 support sleeve 2 and an adapter 3.
- the end piece 20 includes a connector 4, which is formed of a rigid material, such as a metal or plastic.
- the opening of the connecting piece 4 facing the particle guide tube 1 forms an inlet opening B of the end piece 20.
- a flexible first tube piece 6 is provided which forms an outlet opening A.
- the inner diameter of the connecting piece 4 corresponds to the inner diameter of the hose piece 6.
- the inner diameter of the connecting pipe 4 corresponds to the inner diameter of the particle cord tube 1, so that there is no flow cross-sectional taper for a passing of the particle cord 1 in the end piece 20 particle flow.
- the first tube piece 6 is at least partially surrounded by an outer tube piece 7, which also surrounds the connector 4 partially.
- the first tube piece 6 is made of an elastic material, such as a silicone material.
- the outer tube piece 7 is also made of an elastic material, such as a silicone material. The materials of the first tube piece 6 and the outer tube piece 7, however, differ at least in terms of their thermal conductivity.
- the thermal conductivity of the material of the first tube piece 6 is higher than the thermal conductivity of the outer tube piece 7. It is provided that the end face 9 is formed in the region of the outlet opening A of the material of the first piece of tubing 6 and that the end face 9 not is covered by material of the outer tube piece 7. Thus, the high thermal conductivity of the first piece of tubing 6 can be used to heat the end face 9.
- the end piece 20 is surrounded in this example by a flexible protective jacket 10, which surrounds in particular the outer circumference of the outer hose piece 7.
- the protective sheath 10 is designed such that it provides mechanical protection of the end piece 20 and may for example consist of a suitable fabric material, such as a metal fabric.
- the end face 9 is surrounded by a corresponding protective jacket 12, wherein in this area the protective jacket 12 is mounted directly on the material of the first tube piece 6. It can be provided that the protective jacket is attached to each material fit.
- the protective sheath may, for example, be glued, vulcanized or attached in any other suitable manner.
- a heating element 5 is accommodated, which is formed in this example as a heating wire, which is wound into a coil. It can also be provided that the heating wire is wound around the first piece of tubing 6 and touches it on the outer circumference.
- the heating wire of the heating element 5 connects seamlessly to a connection cable 8. This means that the heating wire is continuously in the Connecting cable 8 passes without connecting points or solder joints are necessary.
- the heating element 5 can be considered as a heating device, which represents a functional device of the end piece 20.
- the connecting cable 8 is guided through the outer hose piece 7 and can be connected or connectable, for example, to a power source and / or a control device.
- the outer tube piece 7 may be vulcanized onto the connection piece 4.
- the end piece 20 is designed to be flexible overall, so that the outlet opening can be displaced relative to the inlet opening.
- FIG. 2 shows a further variant of an end piece 20a.
- This end piece 20a is provided for connection to a rigid particle guide tube 4a.
- the end piece 20a comprises a flexible first hose piece 6a and a flexible outer hose piece 7a surrounding the first hose piece 6a.
- the thermal conductivity of the first tube piece 6a is higher than the heat conductivity of the outer tube piece 7a.
- the outwardly facing end face 9a of the end piece 20a is formed by the material of the first piece of hose 6a.
- a protective jacket 10a, 12a surrounds the end piece 20a, in particular the outer hose piece 7a and the end face 9a of the first hose piece 6a.
- a flat heating element such as a heating foil 5a is provided in this variant, which is arranged between the first tube piece 6a and the outer tube piece 7a. Via a connecting cable 8a, the heating foil 5a can be connected to a power supply and / or a controller.
- the heating foil 5a constitutes a heating element as a heating device to be regarded as a functional device.
- the outer tube piece 7a extends in the direction of the inlet opening of the end piece 20a beyond the first tube piece 6a. It forms a collar-like structure, which in the assembled state the particle guide tube 4a surrounds.
- connection clamp 1 1 a which compresses the outer tube piece 7a in the region of the particle guide tube 4a
- the end piece 20a is attached to the particle guide tube 4a.
- the inlet opening B and the outlet opening A of the end piece 20a are provided by the first tube piece 6a.
- the flexibility of the tail is ensured by the elastic and flexible properties of the first piece of tubing 6a, the heating foil 5a, the outer tube piece 7a and the protective jacket 10a.
- the outlet opening A can be moved relative to the inlet opening B.
- FIG. 3 shows a further variant of an end piece 20b.
- a rigid tube sleeve 6b is provided as the first piece of tubing.
- the rigid tube sleeve 6b is wrapped with a heating wire wound to a heating coil 5b, which forms a heating element 5b of a heating device to be regarded as a functional device.
- the heating coil is in touching or thermally conductive contact with the rigid tube sleeve 6b.
- the rigid tube sleeve 6b is suitably made of a good heat conducting material such as a metal.
- the heating element 5b can be supplied with electric power. In this case, the connecting cable can be connected without transition to the heating element 5b.
- the heating element 5b is supplied or can be supplied with electrical energy via electromagnetic waves, such as, for example, microwaves or inductively. It can be provided that the heating element 5b is electrically isolated from the rigid tube sleeve 6b. For this purpose, a suitable insulating layer between heating element 5b and the rigid tube sleeve 6b may be provided.
- the rigid inner tube sleeve 6b also forms, in this example, the end face 9b of the end piece 20b and an outlet opening A.
- the tube sleeve forms a kind Umkragung in the region of the outlet opening, which forms part of the outer wall of the end piece 20b.
- the tube sleeve 6b is surrounded by an elastic outer tube piece 7b which extends in the direction of a particle guide tube 4b beyond the rigid tube sleeve 6b.
- the tube sleeve 6b elec- is electrically conductive, it can be provided to form or use the hose sleeve 6b as an antenna of a conveyor sensor device, which can be regarded as a functional device of the tail.
- the tube sleeve 6b can be connected or connectable for data transmission to a control device which is capable of evaluating transmitted data with regard to the particle flow.
- a suitable electrical conductor can be provided.
- An inlet opening B is defined by the first piece of tubing 7b where a flow of particles from the particle conduit 4b is able to flow into the particle flow space within the first piece of tubing 7b.
- the inner diameter of the tube sleeve 6b corresponds to the inner diameter of the tube piece 7b in the area between the tube sleeve 6b and the inlet opening B. Overall, a uniform inner diameter for the particle flow area in the end piece 20b results.
- the outer tube piece 7b is further configured to surround a lower part of the particle guide tube 4b and is pressed against the particle guide tube 4b by a clamp arrangement 11b such that a frictional connection between the particle guide tube 4b and the end piece 20b results.
- the inner diameter of the particle flow space of the end piece 20b corresponds to the inner diameter of the particle guide tube 4b, so that, in this variant too, there is no tapering of the flow cross section for a particle flow.
- the outer hose piece 7b is received in the casing formed by the hose sleeve 6b. Furthermore, an elastic protective jacket 10b is provided, which surrounds the remaining peripheral area of the hose piece 7b.
- the tube piece 7b is formed of an elastic material having a thermal conductivity lower than the thermal conductivity of the tube sleeve 6b. Thus, on the one hand results in a heat insulation to the outside.
- FIG. 4 shows a fourth variant of an end piece 20c.
- a heating element 5c is received in a first tube piece 6c made of an elastic material.
- the heating element 5c is connected or connectable to a power supply via a seamless connection cable 8c and can be regarded as part of a heating device forming a functional device.
- the first tube piece 6c also forms an end face 9c in the region of the outlet opening A.
- the first tube piece 6c defines an outlet opening A and an inlet opening B.
- the outlet opening A is beveled in comparison to the inlet opening B.
- the cross-sectional area of the inlet opening B is smaller than the cross-sectional area of the outlet opening A.
- An outer tube piece 7c is provided which surrounds the first tube piece 6c and extends beyond the inlet opening B in the direction of a rigid particle guide tube 4c of the particle scattering system.
- the outer tube piece 7c is formed of an elastic material whose thermal conductivity is lower than the thermal conductivity of the elastic material of the first tube piece 6c.
- the peripheral portion of the outer tube piece 7c is similar to the end face 9c of the first tube piece 6c surrounded by a protective jacket 10c, 12c.
- the outer tube piece 7c is the input opening side non-positively connected to the particle guide tube 4c. Due to the elasticity of the tube pieces 6c and 7c, a flexible end piece 20c also results in this variant.
- FIG. 5 shows a further variant of an end piece 20d.
- the end piece 20d has a first elastic hose piece 6d, which defines an exit opening A and an entry opening B.
- the first tube piece 6d extends in the direction of a rigid particle guide tube 4d beyond the inlet opening B.
- the inner diameter of the first tube piece 6d is selected such that it is able to surround the outer wall of the particle guide tube 4d.
- the first tube piece 6d is connected to the outer wall region of the particle guide tube 4d via a clamp 11d in such a way that a particle flow from the particle guide tube 4d can flow into the end piece 20d via the inlet opening B, in particular into a particle flow space inside the first tube piece 6d.
- the first Hose piece 6d is a heating wire 5d wound to a heating coil, which can be connected or connectable via a connection cable 8d with a power supply seamlessly.
- the first piece of tubing 6d is surrounded over part of its longitudinal extent by an outer piece of tubing 7d.
- the material of the outer tube piece 7d is also elastic, but has a lower thermal conductivity than the material of the first tube piece 6d.
- the heating wire 5d is disposed between the first tube piece 6d and the outer tube piece 7d, and is in touching contact with an outer side of the first tube piece 6d.
- the heating wire 5d can be regarded as part of a heating device acting as a functional device of the end piece.
- connection cable 8d and the heating wire 5d are formed such that only a lower portion 17d acts as a heating element 5d and the heating wire 5d is formed above the portion 17d for providing a current and for stabilizing the first piece of tubing 6d, but essentially does not contribute to the heating effect.
- the area of the end piece 20d is heated, in which water and ice can settle particularly easily.
- the connection cable 8d is guided out of the outer hose section 7d in a region of the outer hose section 7d close to the particle guide pipe 4d.
- the outer tube piece 7d is surrounded by a protective jacket 10d from the region of the outlet opening A to approximately the region in which the connecting cable 8d is led out or approximately over a region corresponding to the extension of the heating coil 5d.
- flexibility of the end piece 20d already results from the flexibility of the elastic hose piece 6d. It can thus be provided that the outer tube piece 7d and / or the protective jacket 10d is made of a slightly elastic or even rigid material, since the flexibility and flexible connection of the first tube piece 6d alone displaceability of the outlet opening A relative to the inlet opening B yields.
- FIG. 6 shows a sixth variant of an end piece 20e.
- connection piece 4e of the end piece 20e with a not can be connected, for example, as described with reference to Figure 1 shown particle guide tube or particle lead tube.
- the fitting 4e forms an inlet opening B through which a stream of particles can be fed into the end piece 20e and a part of a particle flow space inside the end piece 20e.
- a first piece of tubing 6e which forms a continuation of the particle flow area and provides an outlet opening A, adjoins the connection piece 4e.
- the material of the inner tube piece 6e forms an end region 9e in the region of the outlet opening. It can be provided that the first tube piece 6e is positively or materially connected to the connection piece 4e.
- the first hose piece 6e may be vulcanized or glued to the connecting piece 4e on its connection piece-side end face.
- an outer tube piece 7e which surrounds the region of the first tube piece 6e which does not form the end face 9e.
- the outer tube piece 7e also surrounds at least a portion of the connecting piece 4e.
- the outer tube piece 7e is formed of an elastic material having a lower heat conductivity than the elastic material of the inner tube piece 6e.
- a protective sheath 10e and 12e is provided.
- a heating element 5e which in this example is designed as a heating wire wound into a coil, which is guided via a seamless connection to a connection cable 18e.
- the heating element constitutes part of a functional device to be regarded as a functional device of the end piece 20e.
- An antenna 19e is furthermore provided, which is formed in an inner wall region of the first hose piece 6e.
- the antenna 19e may, for example, comprise at least one annular region or a plurality of annular regions which are electrically separate from one another.
- the antenna 19e may be considered part of a conveyor sensor device which forms another functional means of the end piece 20e.
- the antenna 19e is electrically insulated from the first tube piece 6e and / or the heating element 5e by an electrically nonconductive sleeve 13e.
- a connection cable 18e guided through the outer hose section 7e has at least least one connecting line, which is connected to the antenna 19 e.
- a protective jacket 12e is provided, which surrounds the first tube section 6e at the end and forms a mechanical protection for the front side 9e.
- a fabric protector 10e is provided, which surrounds the circumference of the outer show piece 7e substantially in an area in which the heating coil 5e extends.
- the protective sheath 10e is formed of a resilient against mechanical influences, electrically conductive fabric, in particular of a metallic fabric.
- At least one line of the connecting cable 18e is electrically connected to the protective jacket 10e.
- the protective jacket 10e can serve as a reference potential for the functional devices antenna 19e and heating element 5e connected via the electrical connection cable 18e and / or optionally a connected electronic control device. Due to the elastic properties of the first tube piece 6e and the outer tube piece 7e, the outlet opening A can be displaced relative to the inlet opening. Thus, the end piece 20e is also a flexible end piece.
- FIG. 7 shows a further variant of an end piece 20f.
- the end piece 20f includes a first piece of tubing 6f defining a part of a particle flow space and an exit opening A of the end piece 20f. In the region of the outlet opening A, the first piece of tubing 6f also forms an end region 9f.
- a heating element 5f Embedded in the material of the first tube piece 6f is a heating element 5f, which in this example is designed as a heating wire shaped into a heating coil, which is connected without transition via a connecting cable 8f to an electronic control device 15f.
- the heating element 5f can be regarded as part of a heating device representing a functional device.
- the inlet opening side connects to the first tube piece 6f an electrically non-conductive sleeve 13f, which electrically isolates an antenna 19f following the sleeve 13f from the first tube piece 6f.
- the antenna 19f is connected to the electronic control device 15f via an unidentified connection cable.
- the antenna 19f may be considered as part of a conveyor sensor device representing another functional means of the tail.
- the antenna 19f is followed by a second electrically nonconductive sleeve 13f, which electrically isolates the antenna 19f from a rigid connecting piece 4f.
- the connecting piece 4f forms an inlet opening B of the end piece 20f and can be connected or connectable to a particle guide tube or a particle guide tube as described above.
- An outer tube piece 7f surrounds the first tube piece 6f, the sleeves 13f, the antenna 19f, and at least partially an outer periphery of the fitting 4f.
- the outer tube piece has a lower thermal conductivity than the first tube piece 6f and is electrically non-conductive.
- the outer tube piece 7f is in turn surrounded by a protective jacket 10f, which is formed in this example of an electrically conductive fabric material.
- a frontal protective jacket 12f which may be made of a different material than the protective jacket 10f, but need not.
- the control device 15f can be connected via an electrical line to the protective jacket 10f, which can define a reference potential. As can be seen, the inner diameter of the piece of tubing 6f widens from its input end to the exit opening A.
- the control device 15f comprises a temperature sensor device 16f, which may comprise a thermostat.
- the temperature sensor device 16f may have one or more measuring sensors which may be designed to detect the temperature, for example in the particle flow region and / or the antenna 19f and / or the first tube piece 6f and / or the connection piece 4f.
- the temperature sensor device 16f is designed to detect the temperature of the heating wire and / or the material of the first tube piece 6f and / or of the outer tube piece 7f. It may be expedient if a temperature sensor of the temperature sensor device 16f in one of the sleeves 13f is disposed and arranged in heat-transferring contact and / or physical contact with the particle flow region of the end piece 20f.
- the temperature sensor device 16f may be considered as a functional device of the end piece 20f.
- the variant shown in Figure 7 has a plurality of electrically operated functional devices which are formed as part of the end piece. One of these functional devices comprises the heating element 5f, which serves for warming up the end piece. Another functional device is provided by the antenna 19f acting as a conveyor sensor device.
- the heating element 5f or only the heating element 5f serves as an antenna for a conveyor sensor device, in which case the antenna can be omitted.
- the control device 15f may be designed to separate signals relating to the heating effect from the signals relating to a particle stream.
- Another functional device is formed by the temperature sensor device 16f, which may be at least partially formed as part of the control device 15f.
- the control device 15f may be designed to control the heating device, in particular the heating element 5f, based on signals from the temperature sensor device 16f, in particular based on a temperature measured by this temperature sensor device 16f.
- the control device 15f can also be designed to receive signals of the antenna 19f, to forward them and / or to evaluate them.
- control device 15f is designed to be connected or connectable to a control device and / or to control a particle scattering system via a common connection cable 14f.
- control device 15f is designed to be designed to control the particle scattering system based on signals from the conveyor sensor device, for example based on measured values from the antenna 19f.
- a control or regulating circuit may be formed, for example, in the region of the end piece 20f, thereby ensuring that a desired Crystalchenstreumenge also accumulates where it is to be applied to the rail.
- control device 15f is designed to receive control parameters from a control device of the rail vehicle or of the particle scattering system, which can indicate, for example, a desired spread rate and / or a desired particle flow.
- control parameters can indicate, for example, a desired spread rate and / or a desired particle flow.
- the functional devices are embedded in or surrounded by the first tube piece 6f or in the outer tube piece 7f, and thus are received within the end piece 20f. In particular, all functional devices are protected by the protective jacket 10f.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012005616A DE102012005616A1 (de) | 2012-02-14 | 2012-02-14 | Endstück für eine Partikelstreuanlage für ein Schienenfahrzeug |
| PCT/EP2013/052806 WO2013120861A1 (de) | 2012-02-14 | 2013-02-13 | Endstück für eine partikelstreuanlage für ein schienenfahrzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2814712A1 true EP2814712A1 (de) | 2014-12-24 |
| EP2814712B1 EP2814712B1 (de) | 2019-04-10 |
Family
ID=47714103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13704103.4A Active EP2814712B1 (de) | 2012-02-14 | 2013-02-13 | Endstück für eine partikelstreuanlage für ein schienenfahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2814712B1 (de) |
| CN (1) | CN104203707B (de) |
| DE (1) | DE102012005616A1 (de) |
| WO (1) | WO2013120861A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2641738A1 (de) * | 1976-09-16 | 1978-03-23 | Josef Langmaier | Sandstreuer fuer kraftfahrzeuge |
| DE4202413C2 (de) * | 1992-01-29 | 1997-12-04 | Stadtwerke Braunschweig Gmbh | Sandstreueinrichtung für Schienenfahrzeuge |
| DE19804179A1 (de) * | 1998-02-03 | 1999-08-12 | Elke Technik Waerme Und Verbin | Beheizbares Sandauslaufrohr für Schienenfahrzeuge und Verfahren zu dessen Herstellung |
| DE10305551B4 (de) * | 2003-02-10 | 2007-02-15 | Deutsche Bahn Ag | Vorrichtung zur Verbesserung der Traktion von Schienenfahrzeugen im Winterbetrieb |
| AT503513B8 (de) * | 2004-02-11 | 2009-01-15 | Faiveley Transport | Einrichtung zur überwachung des flusses von streugut in fahrzeugen |
| CN101844562B (zh) * | 2009-12-29 | 2012-12-05 | 本钢板材股份有限公司 | 安装在有轨车撒砂装置上的撒砂管 |
-
2012
- 2012-02-14 DE DE102012005616A patent/DE102012005616A1/de not_active Ceased
-
2013
- 2013-02-13 CN CN201380017982.9A patent/CN104203707B/zh not_active Expired - Fee Related
- 2013-02-13 EP EP13704103.4A patent/EP2814712B1/de active Active
- 2013-02-13 WO PCT/EP2013/052806 patent/WO2013120861A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013120861A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2814712B1 (de) | 2019-04-10 |
| CN104203707B (zh) | 2019-08-20 |
| CN104203707A (zh) | 2014-12-10 |
| DE102012005616A1 (de) | 2013-08-14 |
| WO2013120861A1 (de) | 2013-08-22 |
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