CA2882102A1 - Grit discharging facility for vehicles, in particular railway vehicles, and method for discharging grit - Google Patents
Grit discharging facility for vehicles, in particular railway vehicles, and method for discharging grit Download PDFInfo
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- CA2882102A1 CA2882102A1 CA2882102A CA2882102A CA2882102A1 CA 2882102 A1 CA2882102 A1 CA 2882102A1 CA 2882102 A CA2882102 A CA 2882102A CA 2882102 A CA2882102 A CA 2882102A CA 2882102 A1 CA2882102 A1 CA 2882102A1
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- grit
- dosing unit
- fact
- discharging
- discharging facility
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Loading Or Unloading Of Vehicles (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Road Repair (AREA)
Abstract
Summary Grit discharging facility for vehicles, in particular railway vehicles, and method for discharging grit The invention relates to a grit discharging facility for vehicles, in particular railway vehicles, and to a method for discharging grit from such facilities, with a reservoir (1), which can be filled with grit, and with a disaggregation element (2) assigned to the discharge outlet of the reservoir (1), and with at least one discharge conduit (5) for the grit ending directly near a tyre/rail gap, in which a dosing unit (3), and a conveying element (4) connected to the dosing unit (3), are arranged downstream of the disaggregation element (2), and in which the conveying element (4) is connected to a shut-off and supply air valve (7) and a discharge conduit (5).
Description
, P13.657W0 / TP-02297 1 15 August 2013 Bombardier Transportation GmbH
Grit discharging facility for vehicles, in particular railway vehicles, and method for discharging grit The invention relates to a grit discharging facility for vehicles, in particular railway vehicles, and to a method for discharging grit by means of a grit discharging facility in accordance with the preambles of the claims 1 and 9.
Such facilities and methods are gaining ever more importance as a component of braking gears of railway vehicles to improve static friction between tyre and rail.
Prior art knows numerous grit discharging devices for railway vehicles. Such grit discharging devices usually have a discharge unit and a reservoir, which is filled with sand and from which the sand is transported onto the rail to the wheels of the railway vehicle by means of various methods via the discharge unit, to improve the traction of the railway vehicle during starting and braking. In the most simple embodiment, such an arrangements consist of a sand box, from which sand trickles onto the rail through a downpipe forced by gravity when a slide gate is opened. In connection with this, the term "sand" comprises quartz sand as well as all other known alternative grits used for such purposes, such as granular materials made of metal oxides, etc.
Advanced embodiments of known grit discharging devices are, as regards the process, operated as pneumatic two-phase flow conveyors, in which ambient air is used as process air, and usually comprise a funnel-shaped reservoir, wherein, by using a suction or pressure nozzle insert arranged at the bottom of the funnel-shaped area of the reservoir, the sand is sucked from the bottom of the reservoir and is transport in front of the wheels of the railway vehicle through a conveying line. In most cases, the conveying air is taken in from outside or inside the vehicle. Climatic influences cause humidity intake, temperatures below the dew-point and icing in the grit discharging system and the compressed-air facility. This may cause clogging of the sand conveying lines during operation of the grit discharging device, which may result in the grit agglutination or freezing in the conveying line and may cause operational disturbance or even failure of the gear.
=
P13.657W0 / TP-02297 2 15 August 2013 Bombardier Transportation GmbH
DE 102005030095 B4 describes a sanding device and a method for operating a sanding device for railway vehicles. There, a negative pressure generator is provided which may operate on the principle of negative-pressure sanding, but overall a balanced-pressure system is provided in which a pressure-tight design of the system is not necessary for function and in which just as much air is sucked in through a sanding pipe as is blown into the sand reservoir.
The sand exists at a very high speed and, possibly, with a higher pressure. In this system, the sand is pneumatically discharged from the sand tank and pneumatically transported.
AT 505782 B1 likewise discloses such a sand discharging device operated with compressed air. The sand is supplied to a pneumatic conveying system via a rotary lock valve. The optimisation of the sand supply geometry from the sand tank into a rotary valve serving as a dosing device is to improve functional and operational reliability.
DE 202009014775 U1 likewise describes a compressed-air operated sand discharging device for railway vehicles. Functional reliability is to be improved by means provided for regulating the air intake quantity at the inlet of the compressor. In this system as well, the sand is pneumatically discharged from the sand tank and pneumatically transported.
DE 4011166 Al discloses a sanding device on railway vehicles with a reservoir, which can be filled with grit, and with at least one discharge outlet for the grit ending directly near a wheel of the vehicle. In this system, the sand is supplied into an inclined downpipe by means of a conveying screw conveying vertically from bottom to top. The conveying screw is arranged in a pipe within the reservoir.
The object of the invention is to improve the known grit discharging facilities and methods for discharging a grit by means of such grit discharging facilities. The disadvantages arising when using compressed air (ambient air) as process air within pneumatic conveying systems and methods are to be overcome, and operating and functional reliability as well as energy efficiency are to be improved.
P13.657W0 / TP-02297 3 15 August 2013 Bombardier Transportation GmbH
According to the invention, this object is achieved by means of a grit discharging facility, or a method of the kind specified first above, by the characteristic features of the claims 1 and 9.
Advantageous further designs of the invention are included in the relevant associated claims.
According to this, the invention consists of a grit discharging facility for vehicles, in particular railway vehicles, with a reservoir, which can be filled with grit, and a disaggregation element assigned to the discharge outlet of the reservoir, and with at least one discharge conduit for the grit ending directly near a tyre/rail gap, in which a dosing unit, and a conveying element connected to the dosing unit, are arranged downstream of the disaggregation element, and in which the conveying element is connected to a shut-off and supply air valve and the aforesaid discharge conduit. An advantageous characteristic feature is that an opening to the outside is provided at the housing of the shut-off and supply air valve, which opening enables the intake of air due to the rapidly falling grit. Without that opening, the falling grit would be slowed down in the discharge conduit by returning air. The shut-off valve is closed after each discharge process. The shut-off valve has a dual function. This simultaneously prevents further flow of grit and the inflow of possibly moist or soiled air from the rail/bottom area.
In an advantageous fashion, the disaggregation element, the dosing unit and the conveying element are connected to each other via a joint drive shaft and a joint drive.
The disaggregation element and the dosing unit are preferably arranged in a joint housing, at right angles to the vertical central axis of the reservoir. Preferably, it is further intended that the disaggregation element has oar-shaped plates which engage into the discharge outlet of the reservoir in a fashion loosening the grit. This positively supports the mass flow in the reservoir.
According to a characteristic feature of the invention, the dosing unit consists of a screw conveyor arranged in a tubular housing, the screw conveyor having a cross-section tapering off towards the outlet, with impact plates for creating a labyrinth being arranged between the blades of the screw thread. In an advantageous fashion, this prevents excessive loading of the dosing area and guarantees even discharge of the grit from the dosing tank into the conveying element. As a particularly advantageous characteristic feature, it is intended that the conveying element consists of a flexible hose with an internally supported flexible conveying helix and is arranged between the tapered outlet of the dosing unit and the tank.
Preferably, the conveying element consists of a flexible plastic hose, with the internally supported flexible conveying helix being made of spring steel of a square cross-section. Due to the design of the conveying element according to the invention, discharge of the grit in the wheel/rail area is guaranteed independent of typical vehicle movements such as rotary P13.657W0 / TP-02297 4 15 August 2013 Bombardier Transportation GmbH
movements of the vehicle frame, bogie inclination, deflection at different load conditions of the vehicle, driving through curves, deceleration and acceleration.
Furthermore, the object described above is achieved in accordance with the invention by a method of the kind specified first above by the fact that the grit discharging facility is designed in accordance with the characteristic features specified above, with the grit being loosened and homogenised by the disaggregation element and the amount of grit to be conveyed being defined in the dosing unit, the impact plates arranged within the dosing unit forming a barrier to prevent excessive loading of the dosing unit and the grit being handed over from the dosing unit to the conveying element and from there being transported solely mechanically to the discharge conduit which discharges the grit directly near the tyre/rail gap.
Simultaneously with the switching-off of the conveying process, the switch-off valve is actuated, which advantageously prevents after-trickling of the grit.
The teaching according to the invention enables a solely mechanical transport of the grit entirely without compressed air. By not using compressed air, the operational reliability of the grit discharging facility is improved. Moreover, this makes the gear less sensitive to climatic influences and more energy-efficient because compressed air is the most expensive type of energy generated. Due to the sparing use of grit, the method according to the invention also makes a contribution to minimising the formation of dust/particulate matter in public transport.
In the following, the invention is explained in more detail by means of a non-limiting embodiment shown in the drawing. In the drawing, Fig. 1 shows a schematic diagram of the grit discharging facility according to the invention and of the rail and the vehicle wheel;
Fig. 2 another schematic diagram;
Fig. 3 an aerial view of the representation in Fig. 1;
Fig. 4 a cross-sectional view (A-A section) of the representation according to Fig. 3.
P13.657W0 / TP-02297 5 15 August 2013 Bombardier Transportation GmbH
Fig. 1 and 2 show an embodiment of the grit discharging facility 10 according to the invention, with a railway vehicle only indicated by a vehicle wheel, and with a vehicle rail in a schematic representation.
The gear 10 comprises a reservoir 1, which can be filled with grit, and a disaggregation element 2 assigned to a discharge outlet of the reservoir 1, and at least one discharge conduit 5 for the grit ending directly near a tyre 20/rail 30 gap. The section shown in the Figure shows that a dosing unit 3 and a conveying element 4, which is connected to the dosing unit 3, are arranged downstream of the disaggregation element 2, the conveying element 4 being connected to a shut-off and supply air valve 7 and the discharge conduit 5.
The disaggregation element 2, the dosing unit 3 and the conveying element 4 are connected to each other via a joint drive shaft 8 and a drive 9. The dosing unit 3 consists of a screw conveyor arranged in a tubular housing 3.1, the screw conveyor having a cross-section tapering off towards the outlet 3.2. Impact plates 3.5 for creating a labyrinth are arranged between the blades 3.3 of the screw thread 3.4. The conveying element 4 preferably consists of a flexible hose with an internally supported flexible conveying helix 4.1 and is arranged between the tapered outlet 3.2 of the dosing unit 3 and the shut-off and supply air valve 7.
The disaggregation element 2 has oar-shaped plates 2.1 which engage into the discharge outlet 1.1 of the reservoir in a fashion loosening the grit. The conveying element 4 preferably consists of a flexible plastic hose, and the internally supported flexible conveying helix 4.1 is preferably made of spring steel of a square cross-section.
The grit (not shown) is loosened and homogenised by the disaggregation element
Grit discharging facility for vehicles, in particular railway vehicles, and method for discharging grit The invention relates to a grit discharging facility for vehicles, in particular railway vehicles, and to a method for discharging grit by means of a grit discharging facility in accordance with the preambles of the claims 1 and 9.
Such facilities and methods are gaining ever more importance as a component of braking gears of railway vehicles to improve static friction between tyre and rail.
Prior art knows numerous grit discharging devices for railway vehicles. Such grit discharging devices usually have a discharge unit and a reservoir, which is filled with sand and from which the sand is transported onto the rail to the wheels of the railway vehicle by means of various methods via the discharge unit, to improve the traction of the railway vehicle during starting and braking. In the most simple embodiment, such an arrangements consist of a sand box, from which sand trickles onto the rail through a downpipe forced by gravity when a slide gate is opened. In connection with this, the term "sand" comprises quartz sand as well as all other known alternative grits used for such purposes, such as granular materials made of metal oxides, etc.
Advanced embodiments of known grit discharging devices are, as regards the process, operated as pneumatic two-phase flow conveyors, in which ambient air is used as process air, and usually comprise a funnel-shaped reservoir, wherein, by using a suction or pressure nozzle insert arranged at the bottom of the funnel-shaped area of the reservoir, the sand is sucked from the bottom of the reservoir and is transport in front of the wheels of the railway vehicle through a conveying line. In most cases, the conveying air is taken in from outside or inside the vehicle. Climatic influences cause humidity intake, temperatures below the dew-point and icing in the grit discharging system and the compressed-air facility. This may cause clogging of the sand conveying lines during operation of the grit discharging device, which may result in the grit agglutination or freezing in the conveying line and may cause operational disturbance or even failure of the gear.
=
P13.657W0 / TP-02297 2 15 August 2013 Bombardier Transportation GmbH
DE 102005030095 B4 describes a sanding device and a method for operating a sanding device for railway vehicles. There, a negative pressure generator is provided which may operate on the principle of negative-pressure sanding, but overall a balanced-pressure system is provided in which a pressure-tight design of the system is not necessary for function and in which just as much air is sucked in through a sanding pipe as is blown into the sand reservoir.
The sand exists at a very high speed and, possibly, with a higher pressure. In this system, the sand is pneumatically discharged from the sand tank and pneumatically transported.
AT 505782 B1 likewise discloses such a sand discharging device operated with compressed air. The sand is supplied to a pneumatic conveying system via a rotary lock valve. The optimisation of the sand supply geometry from the sand tank into a rotary valve serving as a dosing device is to improve functional and operational reliability.
DE 202009014775 U1 likewise describes a compressed-air operated sand discharging device for railway vehicles. Functional reliability is to be improved by means provided for regulating the air intake quantity at the inlet of the compressor. In this system as well, the sand is pneumatically discharged from the sand tank and pneumatically transported.
DE 4011166 Al discloses a sanding device on railway vehicles with a reservoir, which can be filled with grit, and with at least one discharge outlet for the grit ending directly near a wheel of the vehicle. In this system, the sand is supplied into an inclined downpipe by means of a conveying screw conveying vertically from bottom to top. The conveying screw is arranged in a pipe within the reservoir.
The object of the invention is to improve the known grit discharging facilities and methods for discharging a grit by means of such grit discharging facilities. The disadvantages arising when using compressed air (ambient air) as process air within pneumatic conveying systems and methods are to be overcome, and operating and functional reliability as well as energy efficiency are to be improved.
P13.657W0 / TP-02297 3 15 August 2013 Bombardier Transportation GmbH
According to the invention, this object is achieved by means of a grit discharging facility, or a method of the kind specified first above, by the characteristic features of the claims 1 and 9.
Advantageous further designs of the invention are included in the relevant associated claims.
According to this, the invention consists of a grit discharging facility for vehicles, in particular railway vehicles, with a reservoir, which can be filled with grit, and a disaggregation element assigned to the discharge outlet of the reservoir, and with at least one discharge conduit for the grit ending directly near a tyre/rail gap, in which a dosing unit, and a conveying element connected to the dosing unit, are arranged downstream of the disaggregation element, and in which the conveying element is connected to a shut-off and supply air valve and the aforesaid discharge conduit. An advantageous characteristic feature is that an opening to the outside is provided at the housing of the shut-off and supply air valve, which opening enables the intake of air due to the rapidly falling grit. Without that opening, the falling grit would be slowed down in the discharge conduit by returning air. The shut-off valve is closed after each discharge process. The shut-off valve has a dual function. This simultaneously prevents further flow of grit and the inflow of possibly moist or soiled air from the rail/bottom area.
In an advantageous fashion, the disaggregation element, the dosing unit and the conveying element are connected to each other via a joint drive shaft and a joint drive.
The disaggregation element and the dosing unit are preferably arranged in a joint housing, at right angles to the vertical central axis of the reservoir. Preferably, it is further intended that the disaggregation element has oar-shaped plates which engage into the discharge outlet of the reservoir in a fashion loosening the grit. This positively supports the mass flow in the reservoir.
According to a characteristic feature of the invention, the dosing unit consists of a screw conveyor arranged in a tubular housing, the screw conveyor having a cross-section tapering off towards the outlet, with impact plates for creating a labyrinth being arranged between the blades of the screw thread. In an advantageous fashion, this prevents excessive loading of the dosing area and guarantees even discharge of the grit from the dosing tank into the conveying element. As a particularly advantageous characteristic feature, it is intended that the conveying element consists of a flexible hose with an internally supported flexible conveying helix and is arranged between the tapered outlet of the dosing unit and the tank.
Preferably, the conveying element consists of a flexible plastic hose, with the internally supported flexible conveying helix being made of spring steel of a square cross-section. Due to the design of the conveying element according to the invention, discharge of the grit in the wheel/rail area is guaranteed independent of typical vehicle movements such as rotary P13.657W0 / TP-02297 4 15 August 2013 Bombardier Transportation GmbH
movements of the vehicle frame, bogie inclination, deflection at different load conditions of the vehicle, driving through curves, deceleration and acceleration.
Furthermore, the object described above is achieved in accordance with the invention by a method of the kind specified first above by the fact that the grit discharging facility is designed in accordance with the characteristic features specified above, with the grit being loosened and homogenised by the disaggregation element and the amount of grit to be conveyed being defined in the dosing unit, the impact plates arranged within the dosing unit forming a barrier to prevent excessive loading of the dosing unit and the grit being handed over from the dosing unit to the conveying element and from there being transported solely mechanically to the discharge conduit which discharges the grit directly near the tyre/rail gap.
Simultaneously with the switching-off of the conveying process, the switch-off valve is actuated, which advantageously prevents after-trickling of the grit.
The teaching according to the invention enables a solely mechanical transport of the grit entirely without compressed air. By not using compressed air, the operational reliability of the grit discharging facility is improved. Moreover, this makes the gear less sensitive to climatic influences and more energy-efficient because compressed air is the most expensive type of energy generated. Due to the sparing use of grit, the method according to the invention also makes a contribution to minimising the formation of dust/particulate matter in public transport.
In the following, the invention is explained in more detail by means of a non-limiting embodiment shown in the drawing. In the drawing, Fig. 1 shows a schematic diagram of the grit discharging facility according to the invention and of the rail and the vehicle wheel;
Fig. 2 another schematic diagram;
Fig. 3 an aerial view of the representation in Fig. 1;
Fig. 4 a cross-sectional view (A-A section) of the representation according to Fig. 3.
P13.657W0 / TP-02297 5 15 August 2013 Bombardier Transportation GmbH
Fig. 1 and 2 show an embodiment of the grit discharging facility 10 according to the invention, with a railway vehicle only indicated by a vehicle wheel, and with a vehicle rail in a schematic representation.
The gear 10 comprises a reservoir 1, which can be filled with grit, and a disaggregation element 2 assigned to a discharge outlet of the reservoir 1, and at least one discharge conduit 5 for the grit ending directly near a tyre 20/rail 30 gap. The section shown in the Figure shows that a dosing unit 3 and a conveying element 4, which is connected to the dosing unit 3, are arranged downstream of the disaggregation element 2, the conveying element 4 being connected to a shut-off and supply air valve 7 and the discharge conduit 5.
The disaggregation element 2, the dosing unit 3 and the conveying element 4 are connected to each other via a joint drive shaft 8 and a drive 9. The dosing unit 3 consists of a screw conveyor arranged in a tubular housing 3.1, the screw conveyor having a cross-section tapering off towards the outlet 3.2. Impact plates 3.5 for creating a labyrinth are arranged between the blades 3.3 of the screw thread 3.4. The conveying element 4 preferably consists of a flexible hose with an internally supported flexible conveying helix 4.1 and is arranged between the tapered outlet 3.2 of the dosing unit 3 and the shut-off and supply air valve 7.
The disaggregation element 2 has oar-shaped plates 2.1 which engage into the discharge outlet 1.1 of the reservoir in a fashion loosening the grit. The conveying element 4 preferably consists of a flexible plastic hose, and the internally supported flexible conveying helix 4.1 is preferably made of spring steel of a square cross-section.
The grit (not shown) is loosened and homogenised by the disaggregation element
2. In the dosing unit 3, the amount of grit to be conveyed is defined, with the impact plates 3.5 arranged within the dosing unit 3 forming a barrier to prevent excessive loading of the dosing unit 3.
The grit is then handed over from the dosing unit 3 to the conveying element 4 and from there transported solely mechanically to the discharge conduit 5 which discharges the grit directly near the tyre 20/rail 30 gap.
An advantageous characteristic feature is that an opening (not shown) to the outside is provided at the housing 6 of the shut-off and supply air valve 7, which opening enables the intake of air due to the rapidly falling grit. Without that opening, the falling grit would be slowed down in the discharge conduit 5 by returning air. The shut-off valve 7 is closed after each discharge process. The shut-off valve 7 has a dual function.
P13.657W0 / TP-02297 6 15 August 2013 Bombardier Transportation GmbH
This simultaneously prevents further flow of grit and the inflow of possibly moist or soiled air from the raiVbottom area.
The grit is then handed over from the dosing unit 3 to the conveying element 4 and from there transported solely mechanically to the discharge conduit 5 which discharges the grit directly near the tyre 20/rail 30 gap.
An advantageous characteristic feature is that an opening (not shown) to the outside is provided at the housing 6 of the shut-off and supply air valve 7, which opening enables the intake of air due to the rapidly falling grit. Without that opening, the falling grit would be slowed down in the discharge conduit 5 by returning air. The shut-off valve 7 is closed after each discharge process. The shut-off valve 7 has a dual function.
P13.657W0 / TP-02297 6 15 August 2013 Bombardier Transportation GmbH
This simultaneously prevents further flow of grit and the inflow of possibly moist or soiled air from the raiVbottom area.
Claims (11)
1. Grit discharging facility for vehicles, in particular railway vehicles, with a reservoir (1), which can be filled with grit, and a disaggregation element (2) assigned to the discharge outlet of the reservoir (1), and with at least one discharge conduit (5) for the grit ending directly near a tyre/rail gap, characterised by the fact that a dosing unit (3) and a conveying element (4) connected to the dosing unit (3) are arranged downstream of the disaggregation element (2), the conveying element (4) being connected to a shut-off and supply air valve (7) and a discharge conduit (5).
2. Grit discharging facility according to Claim 1, characterised by the fact that the disaggregation element (2), the dosing unit (3) and the conveying element (4) are connected to each other via a joint drive shaft (8).
3. Grit discharging facility according to Claim 1 and Claim 2, characterised by the fact that the dosing unit (3) consists of a screw conveyor arranged in a tubular housing (3.1), the screw conveyor having a cross-section tapering off towards the outlet (3.2), with impact plates (3.5) for creating a labyrinth being arranged between blades (3.3) of the screw thread (3.4).
4. Grit discharging facility according to one of the Claims 1 to 3, characterised by the fact that the conveying element (4) consists of a flexible hose with an internally supported flexible conveying helix (4.1) and is arranged between the tapered outlet (3.2) of the dosing unit (3) and the shut-off and supply air valve 7.
5. Gra discharging facility according to one of the Claims 1 to 4, characterised by the fact that the disaggregation element (2) has oar-shaped plates (2.1) which engage into the discharge outlet (1.1) of the reservoir (1) in a fashion loosening the grit.
6. Grit discharging facility according to one of the Claims 1 to 5, characterised by the fact that the disaggregation element (2) and the dosing unit (3) are arranged in a joint housing, at right angles to the vertical central axis of the reservoir (1).
7. Grit discharging facility according to one of the Claims 1 to 6, characterised by the fact that the conveying element (4) consists of a flexible plastic hose and the internally supported flexible conveying helix (4.1) is made of spring steel of a square cross-section.
8. Grit discharging facility according to one of the Claims 1 to 7, characterised by the fact that an opening is provided at the housing (6) of the shut-off and supply air valve (7), which opening enables the intake of air due to the rapidly falling grit.
9. Method for discharging grit from a grit discharging facility for vehicles, in particular railway vehicles, characterised by the fact that the grit discharging facility is designed according to the Claims 1 to 8, - with the grit being loosened and homogenised by the disaggregation element (2);
- with the amount of grit to be conveyed being defined in the dosing unit (3);
with .cndot. the impact plates (3.5) arranged within the dosing unit (3) forming a barrier to prevent excessive loading of the dosing unit (3);
.cndot. the grit being handed over from the dosing unit (3) to the conveying element (4) and from there being transported solely mechanically to the discharge conduit (5) which discharges the grit directly near the tyre/rail gap.
- with the amount of grit to be conveyed being defined in the dosing unit (3);
with .cndot. the impact plates (3.5) arranged within the dosing unit (3) forming a barrier to prevent excessive loading of the dosing unit (3);
.cndot. the grit being handed over from the dosing unit (3) to the conveying element (4) and from there being transported solely mechanically to the discharge conduit (5) which discharges the grit directly near the tyre/rail gap.
10. Method according to Claim 9, characterised by the fact that simultaneously with the switching-off of the conveying process the shut-off valve (7) is actuated and in this way after-trickling of the grit is prevented.
11. Method according to the Claims 9 and 10, characterised by the fact that an opening to the outside is provided at the housing (6) of the shut-off and supply air valve (7) through which opening air is sucked in due to the rapidly falling grit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012214643.1A DE102012214643A1 (en) | 2012-08-17 | 2012-08-17 | Spreader discharge system for vehicles, in particular rail vehicles, and method for spreading of grit |
| DE102012214643.1 | 2012-08-17 | ||
| PCT/EP2013/067116 WO2014027077A1 (en) | 2012-08-17 | 2013-08-16 | Scattering-material dispensing system for vehicles, in particular rail vehicles, and method for dispensing scattering material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2882102A1 true CA2882102A1 (en) | 2014-02-20 |
| CA2882102C CA2882102C (en) | 2020-07-14 |
Family
ID=49000932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2882102A Active CA2882102C (en) | 2012-08-17 | 2013-08-16 | Grit discharging facility for vehicles, in particular railway vehicles, and method for discharging grit |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP2885190B1 (en) |
| CN (1) | CN104619569B (en) |
| CA (1) | CA2882102C (en) |
| DE (1) | DE102012214643A1 (en) |
| ES (1) | ES2705014T3 (en) |
| PL (1) | PL2885190T3 (en) |
| RU (1) | RU2625686C2 (en) |
| WO (1) | WO2014027077A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515753A (en) * | 2016-11-14 | 2017-03-22 | 大连交通大学 | Sand spreading device of bullet train unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT516791B1 (en) * | 2015-01-28 | 2019-08-15 | Knorr Bremse Gmbh | Rotary valve with improved drive |
| CN107628040B (en) * | 2017-09-20 | 2019-06-18 | 中车青岛四方车辆研究所有限公司 | Sand sprayer |
| DE102020215952A1 (en) | 2020-12-15 | 2022-06-15 | Siemens Mobility GmbH | Grit system for a rail vehicle |
| DE102022213013A1 (en) | 2022-12-02 | 2024-06-13 | Siemens Mobility GmbH | Spreading agent system for a rail vehicle |
| DE102022213002A1 (en) | 2022-12-02 | 2024-06-13 | Siemens Mobility GmbH | Spreading agent system for a rail vehicle |
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|---|---|---|---|---|
| GB328597A (en) * | 1929-01-28 | 1930-04-28 | Marie Paul Robert Jourdain | Improvements in sanding gear chiefly adapted for use upon locomotives |
| US1781637A (en) * | 1930-03-05 | 1930-11-11 | Edward J Gilligan | Track sander |
| SU135900A1 (en) * | 1960-03-16 | 1960-11-30 | И.И. Артемов | Sandbox for mining locomotives |
| SU457625A1 (en) * | 1973-09-10 | 1975-01-25 | Предприятие П/Я Г-4481 | Sandbox for locomotives of underground transport |
| US4114932A (en) * | 1977-07-05 | 1978-09-19 | Fred Freeberg | Motor vehicle wheel track sanding device |
| AT393394B (en) * | 1984-09-24 | 1991-10-10 | Norbert Goldmann | SPREADER |
| AT394169B (en) * | 1988-12-19 | 1992-02-10 | Goldmann Norbert | SPREADER |
| DE4011166A1 (en) | 1990-04-06 | 1991-10-10 | Bedia Verwaltungs Gmbh | Sand dispenser for mining locomotive - comprises storage container with outlet issuing in immediate vicinity of vehicle wheel |
| DE102005030095B4 (en) * | 2004-06-28 | 2008-03-27 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Sanding device for rail vehicles |
| AT505782B1 (en) | 2007-09-26 | 2013-12-15 | Colop Stempelerzeugung Skopek | WRITING DEVICE WITH WRITING PART AND WITH STAMPING DEVICE |
| AT505783B8 (en) * | 2007-10-04 | 2011-02-15 | Faiveley Transport | SPREADING DEVICE |
| CN201231749Y (en) * | 2008-06-19 | 2009-05-06 | 兖州煤业股份有限公司 | Sand spraying apparatus |
| AT507381B1 (en) * | 2008-09-22 | 2010-07-15 | Nowe Gmbh | SANDDING AND SEPARATING DEVICE |
| DE202009014775U1 (en) | 2009-11-02 | 2010-01-14 | Zeppenfeld Industrie-Verwaltungs-Gmbh | Sandaustrageeinrichtung |
-
2012
- 2012-08-17 DE DE102012214643.1A patent/DE102012214643A1/en not_active Ceased
-
2013
- 2013-08-16 CN CN201380044161.4A patent/CN104619569B/en active Active
- 2013-08-16 PL PL13750689T patent/PL2885190T3/en unknown
- 2013-08-16 RU RU2015109071A patent/RU2625686C2/en active
- 2013-08-16 ES ES13750689T patent/ES2705014T3/en active Active
- 2013-08-16 EP EP13750689.5A patent/EP2885190B1/en active Active
- 2013-08-16 CA CA2882102A patent/CA2882102C/en active Active
- 2013-08-16 WO PCT/EP2013/067116 patent/WO2014027077A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515753A (en) * | 2016-11-14 | 2017-03-22 | 大连交通大学 | Sand spreading device of bullet train unit |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2705014T3 (en) | 2019-03-21 |
| RU2625686C2 (en) | 2017-07-18 |
| PL2885190T3 (en) | 2019-04-30 |
| RU2015109071A (en) | 2016-10-20 |
| CN104619569A (en) | 2015-05-13 |
| EP2885190A1 (en) | 2015-06-24 |
| WO2014027077A1 (en) | 2014-02-20 |
| CN104619569B (en) | 2017-08-01 |
| CA2882102C (en) | 2020-07-14 |
| DE102012214643A1 (en) | 2014-02-20 |
| EP2885190B1 (en) | 2018-10-10 |
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| Date | Code | Title | Description |
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| EEER | Examination request |
Effective date: 20180219 |