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WO2008064747A1 - Broadcasting device for a vehicle, particularly a rail vehicle - Google Patents

Broadcasting device for a vehicle, particularly a rail vehicle Download PDF

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Publication number
WO2008064747A1
WO2008064747A1 PCT/EP2007/009116 EP2007009116W WO2008064747A1 WO 2008064747 A1 WO2008064747 A1 WO 2008064747A1 EP 2007009116 W EP2007009116 W EP 2007009116W WO 2008064747 A1 WO2008064747 A1 WO 2008064747A1
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WO
WIPO (PCT)
Prior art keywords
sand
vehicle
injector
compressed air
dosing
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.)
Ceased
Application number
PCT/EP2007/009116
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German (de)
French (fr)
Inventor
Werner Bartling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Faiveley Transport SA
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Faiveley Transport SA
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Filing date
Publication date
Application filed by Faiveley Transport SA filed Critical Faiveley Transport SA
Publication of WO2008064747A1 publication Critical patent/WO2008064747A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B61C15/102—Preventing wheel slippage by depositing sand or like friction increasing materials with sanding equipment of mechanical or fluid type, e.g. by means of steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B39/00—Increasing wheel adhesion
    • B60B39/02—Vehicle fittings for scattering or dispensing material in front of its wheels
    • B60B39/021—Details of the dispensing device
    • B60B39/023—Details of the dispensing device related to metering valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B39/00—Increasing wheel adhesion
    • B60B39/02—Vehicle fittings for scattering or dispensing material in front of its wheels
    • B60B39/04—Vehicle fittings for scattering or dispensing material in front of its wheels the material being granular, e.g. sand
    • B60B39/08—Vehicle fittings for scattering or dispensing material in front of its wheels the material being granular, e.g. sand the dispensing being effected by fluid means
    • B60B39/086—Vehicle fittings for scattering or dispensing material in front of its wheels the material being granular, e.g. sand the dispensing being effected by fluid means dispensing being effected by gas

Definitions

  • Spreader device for a vehicle, in particular a rail vehicle
  • the invention relates to a spreader according to the preamble of claim 1.
  • the aim of the invention is to provide a reliable leak-free system, which is equipped with a cellular wheel sand dosing and shut-off device, is compact and robust and can be installed in rail vehicles.
  • the spreader must provide a high and constant torque across all required speed ranges and is directly controlled across all speed ranges and, for structural reasons, does not include a primary gearbox.
  • These vehicles are usually equipped with a sanding system, which has a stepless or at least two-stage sand quantity control.
  • the sanding system and the amounts of sand are controlled in response to the respective vehicle speed by a vehicle-side control signal (for example, 0-10V and 4-2OmA) and corresponding pressure regulators.
  • the sand quantities become stepless or in at least two stages by defined speed ranges connected via a controllable pressure regulator.
  • WO 2001/068431 A1 describes a spreader with a storage container, a dosing device and a preferably compressed air-actuated conveying or discharging device for discharging the material to be spread, wherein a rotary valve is provided as dosing device for dosing of spreading material, which at least one rotatable about a rotation axis, to having this radially projecting conveying or closing surface.
  • the rotatable in the rotary valve cell serves on the one hand as a closure member for interrupting the sand flow between the reservoir and the injector and on the other hand as a conveyor to promote the sand to be discharged in the executed as an injector air-operated conveying or discharging.
  • the introduced via the rotary feeder into the injector sand is conveyed by means of compressed air via a sand hose to the scattering tube, from which it emerges as anti-slip material for a wheel.
  • DE 101 05 525 A1 discloses a spreader with a storage container and a metering device.
  • This metering device can, for example, be designed as a conveying or closing surface rotatable about an axis of rotation, e.g. as a rotary valve.
  • the metering follows in the direction of flow of the material to be spread an injector from which the material to be spread is conveyed via a sand hose to the scattering tube, from which it emerges as anti-slip material for a wheel.
  • DE 21 11 843 Al explains a sanding device to improve the adhesion conditions between the wheel and rail or roadway, the sand is conveyed by a mechanical launcher in the downpipes and passed through specially trained scattering nozzles safely to the point of contact between the wheel and rail or wheel and road becomes.
  • This mechanical launcher operates in the manner of a sand dosing and shut-off device.
  • the drive takes place by means of a pneumatic turbine wheel or by a micro-electric motor.
  • the compressed air for driving the turbine wheel also serves to blow out the sand through the downpipe and the scattering nozzle.
  • DE 195 47 746 Al a spreader with a reservoir, a metering device and a discharge device are removed, wherein after the metering device designed as an injector compressed air-actuated discharge device is provided for discharging the material to be spread.
  • the Vorschaltdüse also has the task of a defined back pressure according to the necessary pressure for the required defined safe operation of the spreader
  • the Vorschaltdüse depending on the actual system pressure has a diameter of 1 - 2 mm, preferably 1.5 mm.
  • 1 denotes a sand container, from which - A - the in-stock amount of sand is supplied to a feeder 10, which has the task to promote metered amounts of sand via an injector 3 and then Sandleitschlauch 4 in front of the rail 5 and between rail 5 and the designated in the Fig. 14 upper edge of the rail ,
  • the sand dosing and shut-off is denoted by 2 and surrounded by dash-dotted lines and has a throttle check valve 6 and a pressure regulator. 7
  • the vehicle with the compressed air controlled supply of the cellular wheel is designated in the drawing with 8. From there, the compressed air is passed through the compressed air hose 9 in the sand dosing and shut-off device 10, which, as already mentioned, the throttle check valve 6 and the pressure regulator 7 includes.
  • the compressed air hose 9 is also connected via a check valve 11 and the Vorschaltdüse 12 of the invention to the injector 3.
  • Hiebei also a radial piston motor 14 may be used, the motor-speed control has a throttle valve, which is located directly on the engine-compressed air connection and has a throttle valve upstream pressure regulator.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)

Abstract

The invention relates to a broadcasting device for a vehicle, particularly a rail vehicle, for dosing an amount of sand coming from a sand container (1) in connection with a closing device. The invention comprises two self-contained functional units, the first of which is a cellular wheel sand dosing and closing unit (2), and the second of which is a sand conveying system controlled by pressurized air and working according to the injector principle, wherein a nozzle (12) is connected upstream in the pressurized air conduit to the injector (3).

Description

Streuqerät für ein Fahrzeug, insbesondere ein Schienenfahrzeug Spreader device for a vehicle, in particular a rail vehicle

Die Erfindung betrifft ein Streugerät nach dem Oberbegriff des Patentanspruches 1.The invention relates to a spreader according to the preamble of claim 1.

Ziel der Erfindung ist die Schaffung eines betriebssicheren Streusystems, welches mit einer Zellenrad-Sanddosier- und Absperreinrichtung ausgerüstet ist, kompakt und robust ist und in Schienenfahrzeuge eingebaut werden kann. Das Streugerät muss ein hohes und konstantes Drehmoment über alle benötigten Drehzahlbereiche zur Verfügung stellen und ist direkt gesteuert über alle Drehzahlbereiche und beinhaltet aus baulichen Gründen kein Vorschaltgetriebe .The aim of the invention is to provide a reliable leak-free system, which is equipped with a cellular wheel sand dosing and shut-off device, is compact and robust and can be installed in rail vehicles. The spreader must provide a high and constant torque across all required speed ranges and is directly controlled across all speed ranges and, for structural reasons, does not include a primary gearbox.

Bei Fahrzeugen im niedrigen Geschwindigkeitsbereich bis ca. 120 km/h sind handverstellbare Druckregler üblich. Diese Fahrzeuge werden üblicherweise mit einstufigen Sandstreusystemen ausgerüstet, die nur mit einer fest eingestellten Sandmenge arbeiten. Bei diesen Systemausführungen wird der erforderliche Systemdruck., der fahrzeugseitigen Druckluftversorgung über einen Druckregler entnommen und auf einen definierten Druck voreingestellt, über den dann eine dadurch weitere .ebenfalls vordefinierte Sandmenge realisiert wird.On vehicles in the low speed range up to approx. 120 km / h hand-adjustable pressure regulators are common. These vehicles are usually equipped with single-stage sanding systems that only work with a set amount of sand. In these system versions, the required system pressure is taken from the vehicle-side compressed air supply via a pressure regulator and pre-set to a defined pressure, via which a further predefined amount of sand is thereby realized.

Bei Fahrzeugen im Hochgeschwindigkeitsbereich bis ca. 300 km/h sind Servodruckleger bekannt, die stufenlos oder zumindest in zwei Druckstufen steuerbar sind und über die Fahrzeugleittechnik in Abhängigkeit zur Fahrzeuggeschwindigkeit gesteuert werden.In vehicles in the high-speed range up to about 300 km / h Servopruckleger are known which are continuously or at least controlled in two pressure levels and are controlled by the vehicle control technology in dependence on the vehicle speed.

Diese Fahrzeuge werden üblicherweise mit einem Sandstreusystem ausgerüstet, das über eine stufenlose oder zumindest zweistufige Sandmengensteuerung verfügt. Hier werden das Sandstreusystem bzw. die Sandmengen in Abhängigkeit zur jeweiligen Fahrzeuggeschwindigkeit durch ein fahrzeugseitiges Steuersignal (z.B. 0 - 10V und 4 - 2OmA) und entsprechende Druckregler gesteuert.These vehicles are usually equipped with a sanding system, which has a stepless or at least two-stage sand quantity control. Here, the sanding system and the amounts of sand are controlled in response to the respective vehicle speed by a vehicle-side control signal (for example, 0-10V and 4-2OmA) and corresponding pressure regulators.

Bei einem stufenlosen Sandstreusystem oder einem mindestens zweistufigen System werden durch definierte Geschwindigkeitsbereiche die Sandmengen stufenlos oder in mindestens zwei Stufen über einen steuerbaren Druckregler geschaltet.With a stepless sand spreading system or an at least two-stage system, the sand quantities become stepless or in at least two stages by defined speed ranges connected via a controllable pressure regulator.

Die WO 2001/068431 Al beschreibt ein Streugerät mit einem Vorratsbehälter, einer Dosiervorrichtung und einer vorzugsweise druckluftbetätigten Förder- bzw. Austragseinrichtung zum Austragen des Streugutes, wobei als Dosiervorrichtung zur Dosierung von Streugut eine Zellenradschleuse vorgesehen ist, welche zumindest eine um eine Drehachse rotierbare, zu dieser radial abstehende Förder- bzw. Verschlussfläche aufweist. Das in der Zellenradschleuse drehbare Zellenrad dient einerseits als Verschlussorgan zur Unterbrechung des Sandflusses zwischen dem Vorratsbehälter und dem Injektor und andererseits als Fördereinrichtung, um den auszutragenden Sand in die als Injektor ausgeführte druckluftbetätigte Förder- bzw. Austragseinrichtung zu fördern. Das über die Zellenradschleuse in den Injektor eingebrachte Sandgut wird mittels Druckluftbeaufschlagung über eine Sandschlauchleitung zum Streurohr gefördert, aus welchem es als Antirutschmaterial für ein Rad austritt.WO 2001/068431 A1 describes a spreader with a storage container, a dosing device and a preferably compressed air-actuated conveying or discharging device for discharging the material to be spread, wherein a rotary valve is provided as dosing device for dosing of spreading material, which at least one rotatable about a rotation axis, to having this radially projecting conveying or closing surface. The rotatable in the rotary valve cell serves on the one hand as a closure member for interrupting the sand flow between the reservoir and the injector and on the other hand as a conveyor to promote the sand to be discharged in the executed as an injector air-operated conveying or discharging. The introduced via the rotary feeder into the injector sand is conveyed by means of compressed air via a sand hose to the scattering tube, from which it emerges as anti-slip material for a wheel.

Die DE 101 05 525 Al offenbart ein Streugerät mit einem Vorratsbehälter und einer Dosiervorrichtung. Diese Dosiervorrichtung kann beispielsweise als eine um eine Drehachse rotierbare Förder- bzw. Verschlussfläche, z.B. als eine Zellenradschleuse, ausgeführt sein. Der Dosiervorrichtung folgt in Strömungsrichtung des Streugutes ein Injektor, aus welchem das Streugut über eine Sandschlauchleitung zum Streurohr gefördert wird, aus welchem es als Antirutschmaterial für ein Rad austritt.DE 101 05 525 A1 discloses a spreader with a storage container and a metering device. This metering device can, for example, be designed as a conveying or closing surface rotatable about an axis of rotation, e.g. as a rotary valve. The metering follows in the direction of flow of the material to be spread an injector from which the material to be spread is conveyed via a sand hose to the scattering tube, from which it emerges as anti-slip material for a wheel.

Die DE 21 11 843 Al erläutert eine Sandstreueinrichtung zur Verbesserung der Haftungsverhältnisse zwischen Rad und Schiene oder Fahrbahn, wobei der Sand durch einen mechanischen Werfer in die Fallrohre befördert wird und durch besonders ausgebildete Streudüsen sicher an die Berührungsstelle zwischen Rad und Schiene oder Rad und Fahrbahn geleitet wird. Dieser mechanische Werfer arbeitet nach Art einer Sanddosier- und Absperreinrichtung. Der Antrieb erfolgt mittels eines Druckluftturbinenrädchens oder durch einen Kleinst-Elektromotor . Die Druckluft zum Antrieb des Turbinenrädchens dient gleichzeitig zum Ausblasen des Sandes durch dass Fallrohr und die Streudüse. Der DE 195 47 746 Al kann ein Streugerät mit einem Vorratsbehälter, einer Dosiereinrichtung und einer Austragseinrichtung entnommen werden, wobei nach der Dosiereinrichtung eine als Injektor ausgebildete druckluftbetätigte Austragseinrichtung zum Austragen des Streugutes vorgesehen ist.DE 21 11 843 Al explains a sanding device to improve the adhesion conditions between the wheel and rail or roadway, the sand is conveyed by a mechanical launcher in the downpipes and passed through specially trained scattering nozzles safely to the point of contact between the wheel and rail or wheel and road becomes. This mechanical launcher operates in the manner of a sand dosing and shut-off device. The drive takes place by means of a pneumatic turbine wheel or by a micro-electric motor. The compressed air for driving the turbine wheel also serves to blow out the sand through the downpipe and the scattering nozzle. DE 195 47 746 Al, a spreader with a reservoir, a metering device and a discharge device are removed, wherein after the metering device designed as an injector compressed air-actuated discharge device is provided for discharging the material to be spread.

Obwohl die bekannten Vorrichtungen den an sie gestellten Anforderungen Rechnung getragen haben, ist es Aufgabe der vorliegenden Erfindung, ein druckluftgesteuertes Streugerät für die Zellenrad-Sanddosier- und Absperreinrichtung zu schaffen, welches in der Lage ist, die Sandförderung über nur einen gemeinsamen fahrzeugseitig gesteuerten Druckluftanschluss betriebssicher zu definieren und die erwähnten Systemeigenschaften zu erfüllen, welche die bekannten Einrichtungen nicht erfüllt haben.Although the known devices have taken into account the requirements placed on them, it is an object of the present invention to provide a compressed air controlled spreader for the bucket sand dosing and shut-off, which is able to reliable sand transport over only a common vehicle-side controlled compressed air connection to define and to meet the mentioned system properties, which have not met the known devices.

Diese Aufgabe wird erfindungsgemäß durch die Maßnahme nach dem kennzeichnenden Teil des Anspruches 1 gelöst. Im Sandaufgabeinjektor des Sandfördersystems ist eine Vorschaltdüse vorgesehen. Diese Vorschaltdüse hat die Aufgabe sich so einzustellen, dass für das Streugerät ein ausreichender Systemdruck und Luftvolumen, bzw. auch für die Sandförderung ebenfalls ein konstant sicheres und ausreichendes Luftvolumen zur Verfügung steht.This object is achieved by the measure according to the characterizing part of claim 1. In Sandaufgabeinjektor the sand conveyor system a Vorschaltdüse is provided. This Vorschaltdüse has the task to be adjusted so that for the spreader sufficient system pressure and air volume, and also for the sand extraction is also a constant safe and sufficient air volume available.

Die Vorschaltdüse hat außerdem die Aufgabe, einen definierten Staudruck entsprechend dem notwendigen Druck für den geforderten definiert sicheren Betrieb des StreugerätesThe Vorschaltdüse also has the task of a defined back pressure according to the necessary pressure for the required defined safe operation of the spreader

(Zellenraddrehzahl/Sandmenge) und gleichzeitig eine definiert sichere Sandförderung durch einen ausreichenden Luftvolumen- Durchlass zu gewährleisten.(Rotary fan speed / amount of sand) and at the same time to ensure a defined safe sand extraction by a sufficient air volume passage.

Nach einem weiteren Merkmal der Erfindung weist die Vorschaltdüse in Abhängigkeit vom tatsächlichen Systemdruck einen Durchmesser von 1 - 2 mm, vorzugsweise 1,5 mm, auf.According to a further feature of the invention, the Vorschaltdüse depending on the actual system pressure has a diameter of 1 - 2 mm, preferably 1.5 mm.

Weitere Merkmale der Erfindung werden anhand der Zeichnung näher erläutert, in welcher ein Ausführungsbeispiel eines diesbezüglichen erfindungsgemäßen Steuersystems schematisch dargestellt ist.Further features of the invention will be explained in more detail with reference to the drawing, in which an embodiment of a related control system according to the invention is shown schematically.

In der Zeichnung bezeichnet 1 einen Sandbehälter, aus welchem - A - die vorrätige Sandmenge einem Zellenrad 10 zugeführt wird, welches die Aufgabe hat, dosierte Sandmengen über einen Injektor 3 und anschließenden Sandleitschlauch 4 vor das Schienenrad 5 bzw. zwischen Schienenrad 5 und der in der Fig. mit 14 bezeichneten Oberkante der Schiene zu fördern.In the drawing, 1 denotes a sand container, from which - A - the in-stock amount of sand is supplied to a feeder 10, which has the task to promote metered amounts of sand via an injector 3 and then Sandleitschlauch 4 in front of the rail 5 and between rail 5 and the designated in the Fig. 14 upper edge of the rail ,

Die Sanddosier- und Absperreinrichtung ist mit 2 bezeichnet und strichpunktiert umrandet und besitzt ein Drosselrückschlagventil 6 sowie einen Druckregler 7.The sand dosing and shut-off is denoted by 2 and surrounded by dash-dotted lines and has a throttle check valve 6 and a pressure regulator. 7

Das Fahrzeug mit der druckluftgesteuerten Versorgung des Zellenrades ist in der Zeichnung mit 8 bezeichnet. Von da aus wird die Druckluft über den Druckluftschlauch 9 in die Sanddosier- und Absperreinrichtung 10 geleitet, welche, wie bereits erwähnt, das Drosselrückschlagventil 6 und den Druckregler 7 beinhaltet. Der Druckluftschlauch 9 ist außerdem über ein Rückschlagventil 11 und die erfindungsgemäße Vorschaltdüse 12 an den Injektor 3 angeschlossen.The vehicle with the compressed air controlled supply of the cellular wheel is designated in the drawing with 8. From there, the compressed air is passed through the compressed air hose 9 in the sand dosing and shut-off device 10, which, as already mentioned, the throttle check valve 6 and the pressure regulator 7 includes. The compressed air hose 9 is also connected via a check valve 11 and the Vorschaltdüse 12 of the invention to the injector 3.

Hiebei kann auch ein Radialkolbenmotor 14 verwendet werden, dessen Motor-Drehzahlsteuerung ein Drosselventil aufweist, das sich unmittelbar am Motor-Druckluftanschluss befindet und einen dem Drosselventil vorgeschalteten Druckregler besitzt.Hiebei also a radial piston motor 14 may be used, the motor-speed control has a throttle valve, which is located directly on the engine-compressed air connection and has a throttle valve upstream pressure regulator.

Bedingt durch die unterschiedlichen Funktionsweisen (Drosselventil/Druckregler) ist es, unter der Voraussetzung, dass konstante Druckverhältnisse und Luftvolumen aus dem fahrzeugseitigen Druckluftversorgungsnetz zur Verfügung stehen, auf einfache Art und Weise möglich, einen ausreichend sicheren und variablen Drehzahl- bzw. Arbeitsbereich einzustellen. Due to the different functions (throttle valve / pressure regulator), it is possible, under the condition that constant pressure conditions and air volume from the vehicle-side compressed air supply network are available, to set a sufficiently safe and variable speed or working range.

Claims

Patentansprüche : Claims: 1. Streugerät für ein Fahrzeug, insbesondere ein Schienenfahrzeug, zum Dosieren einer von einem Sandbehälter (1) kommenden Sandmenge in Verbindung mit einer Absperreinrichtung, wobei zwei eigenständige Funktionseinheiten vorgesehen sind, deren erste eine Zellenrad-Sanddosier- und Absperreinrichtung (2) und deren zweite ein durch Druckluft gesteuertes, nach dem Injektorprinzip arbeitendes Sandfördersystem ist, dadurch gekennzeichnet, dass in der Druckluftleitung zum Injektor (3) eine Vorschaltdüse (12) vorgesehen ist.1. spreader for a vehicle, in particular a rail vehicle, for dosing one of a sand container (1) coming amount of sand in conjunction with a shut-off device, wherein two separate functional units are provided, the first a feeder-sand dosing and shut-off device (2) and the second a controlled by compressed air, working on the injector principle sand conveyor system, characterized in that in the compressed air line to the injector (3) a Vorschaltdüse (12) is provided. 2. Streugerät nach Anspruch 1, dadurch gekennzeichnet, dass die Vorschaltdüse (12) einen Durchmesser von 1 bis 2 mm, vorzugsweise 1,5 mm, aufweist.2. spreader according to claim 1, characterized in that the Vorschaltdüse (12) has a diameter of 1 to 2 mm, preferably 1.5 mm. 3. Streugerät nach Anspruch 1, dadurch gekennzeichnet, dass die Vorschaltdüse (12) in der vom Fahrzeug kommenden Druckluftleitung zwischen einem Rückschlagventil (11) und dem Injektor (3) vorgesehen ist.3. spreader according to claim 1, characterized in that the Vorschaltdüse (12) in the coming from the vehicle compressed air line between a check valve (11) and the injector (3) is provided. 4. Streugerät nach Anspruch 1, dadurch gekennzeichnet, dass die Zellenrad-Sanddosier- und Absperreinrichtung (2) durch den Radialkolbenmotor angetrieben ist. 4. Spreader according to claim 1, characterized in that the bucket Sanddosier- and shut-off device (2) is driven by the radial piston motor.
PCT/EP2007/009116 2006-11-29 2007-10-20 Broadcasting device for a vehicle, particularly a rail vehicle Ceased WO2008064747A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1985/2006 2006-11-29
AT19852006A AT503940B1 (en) 2006-11-29 2006-11-29 Scattering device for vehicle i.e. rail vehicle, to dose sand amount from sand container, has sand conveying system working according to injector principle, and nozzle connected upstream to injector in pressurized air conduit

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WO2008064747A1 true WO2008064747A1 (en) 2008-06-05

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Cited By (8)

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CN103950450A (en) * 2014-03-14 2014-07-30 南车南京浦镇车辆有限公司 Vehicle sanding device
CN105705396A (en) * 2013-09-30 2016-06-22 克诺尔轨道车辆系统有限公司 Sanding device for rail vehicles and method for providing sand to rail vehicles
WO2016118997A1 (en) * 2015-01-28 2016-08-04 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung Rotary valve and sanding system for a rail vehicle with improved response behaviour and less pulsating material flow
CN107207015A (en) * 2015-01-28 2017-09-26 克诺尔有限公司 Sanding equipment with shielded motor
CN107754322A (en) * 2017-12-02 2018-03-06 杭州俊士铁路设备有限公司 The sliding device of small rail train sandblasting drop
US10124813B2 (en) 2013-10-15 2018-11-13 Nowe Gmbh Discharge device for granular material
CN109050545A (en) * 2018-07-11 2018-12-21 中车大连机车车辆有限公司 Sander and its control method, locomotive
WO2019121563A1 (en) * 2017-12-20 2019-06-27 Hanning & Kahl Gmbh & Co. Kg Grit-dispensing device for rail vehicles

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US10124813B2 (en) 2013-10-15 2018-11-13 Nowe Gmbh Discharge device for granular material
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WO2016118997A1 (en) * 2015-01-28 2016-08-04 Knorr-Bremse Gesellschaft Mit Beschränkter Haftung Rotary valve and sanding system for a rail vehicle with improved response behaviour and less pulsating material flow
US10435039B2 (en) 2015-01-28 2019-10-08 Knorr-Bremse Gesellschaft Mit Beschrankter Haftung Sanding system comprising a protected motor
CN107754322A (en) * 2017-12-02 2018-03-06 杭州俊士铁路设备有限公司 The sliding device of small rail train sandblasting drop
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WO2019121563A1 (en) * 2017-12-20 2019-06-27 Hanning & Kahl Gmbh & Co. Kg Grit-dispensing device for rail vehicles
US11267284B2 (en) 2017-12-20 2022-03-08 Hanning & Kahl Gmbh & Co. Kg Grit-dispensing device for rail vehicles
CN109050545A (en) * 2018-07-11 2018-12-21 中车大连机车车辆有限公司 Sander and its control method, locomotive
CN109050545B (en) * 2018-07-11 2020-05-05 中车大连机车车辆有限公司 Sanding device, control method thereof and locomotive

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