EP2781426A1 - Système d'aspiration permettant de nettoyer des trains - Google Patents

Système d'aspiration permettant de nettoyer des trains Download PDF

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Publication number
EP2781426A1
EP2781426A1 EP13160596.6A EP13160596A EP2781426A1 EP 2781426 A1 EP2781426 A1 EP 2781426A1 EP 13160596 A EP13160596 A EP 13160596A EP 2781426 A1 EP2781426 A1 EP 2781426A1
Authority
EP
European Patent Office
Prior art keywords
suction
single line
aerosols
suction unit
valve
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.)
Withdrawn
Application number
EP13160596.6A
Other languages
German (de)
English (en)
Inventor
Wim Kuysters
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.)
LW-Group
Original Assignee
LW-Group
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LW-Group filed Critical LW-Group
Priority to EP13160596.6A priority Critical patent/EP2781426A1/fr
Priority to EP14718923.7A priority patent/EP2986481B1/fr
Priority to RU2015144686A priority patent/RU2015144686A/ru
Priority to PCT/EP2014/055860 priority patent/WO2014147259A2/fr
Publication of EP2781426A1 publication Critical patent/EP2781426A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems

Definitions

  • the invention relates to a suction system according to the technical features of the first claim.
  • Rail-based transport for passengers is subjected to strict safety and maintenance regulations.
  • the trains are cleaned, for example using a fresh-water supply and the solid-waste containers of the wagons, for example sewage container are drained.
  • the cleaning and maintenance activities are performed at various service points of the station and are quite time-consuming.
  • the maintenance and cleaning work is often gathered on a common service platform.
  • Such a common service platform is for example described in DE20001916U .
  • Specific technical requirements are to be met for the disposal of solid waste containers.
  • the sewage is disposed of mainly by a suction system, while water points are needed in order to fill the water tanks in the passenger trains. Both systems can be combined in a single platform using separate water supply and sewage lines. Compliance with hygiene rules is assured by excluding an accidental contact between fresh water and sewage lines.
  • tubing lines for liquids are typically made of plastic materials, for instance because plastic tubing is cheap and relatively easily made watertight; tubing lines for aerosols, for example solid and/or liquid aerosols, typically made of metals, often earthed, in order to avoid the built-up of static friction charges in the tubing.
  • tubing lines for liquids are typically made of plastic materials, for instance because plastic tubing is cheap and relatively easily made watertight; tubing lines for aerosols, for example solid and/or liquid aerosols, typically made of metals, often earthed, in order to avoid the built-up of static friction charges in the tubing.
  • Combining both functions in a single line would be very complicated and expensive since the aggressive chemical environment of the sewage would require the use of stainless steel tubing and would cause hard-to-solve sealing problems between the different sections of the tubing.
  • the invention therefore aims to provide a cost-effective and simple system allowing the suction of both liquids such as sewage and solid and/or liquid aerosols while avoiding suction of liquid such as sewage by and into the second suction unit.
  • the invention provides a system comprising at least two separate suction units, with the first suction unit for suction of liquids, for example sewage, being connected to a liquid container for storing the sucked liquid and with the second suction unit for suction of aerosols, for example liquid aerosols and/or solid aerosols, being connected to an aerosol container for storing the sucked aerosols, wherein the two suction units are connected to a single line, to which at least a first suction inlet for liquids and a second suction inlet for aerosols, for example solid and/or liquid aerosols, are connected, with at least one valve arranged such that at suction of the second suction unit the first suction inlet is substantially closed or even closed.
  • Such a system would allow suction of both liquids such as sewage and solid and/or liquid aerosols through the same single line since contamination of the second suction unit with for example sewage drawn in through the second suction inlet is avoided by the presence of the valve which ensures that at suction of the second suction unit only liquid aerosols and/or solid aerosols are drawn in by substantially, preferably completely closing off the first suction inlet using the valve.
  • the first suction inlet being closed off by the valve, the second suction inlet being open and the second suction unit operating, will allow the aerosols to enter the single line aspired by the second suction unit and substantially only liquid aerosols and/or solid aerosols are drawn in.
  • the second suction unit is a vacuum cleaner, for example further comprising a cyclone separator and/or a filter, in order to remove the aerosols, preferably liquid aerosols and/or the solid aerosols, respectively, from the air stream which is drawn in by the second suction unit, keeping the second suction unit substantially free from for example dust and water droplets which could hamper the operation of the second suction unit.
  • the second suction unit is connected to an aerosol container, which preferably is a dust container. Suction by first suction unit of liquid aerosols and/or solid aerosols drawn in through the second suction inlet does however affect the operation of the first suction unit less or even not at all and is not regarded as an obstacle to the functioning of the first suction unit.
  • the first suction unit is connected to a liquid container, which preferably is a sewage container.
  • the system comprises at least one valve mounted between the first suction inlet and the single line or mounted at the junction of the first and second suction inlet with the single line.
  • the presence of at least one valve mounted between the first suction inlet and the single line ensures that at suction of the second suction unit only liquid aerosols and/or solid aerosols are drawn in and avoid contamination of the suction unit, by closing the valve, thereby closing off the supply of liquids and in particular sewage.
  • the presence of at least one valve mounted between the second suction inlet and the single line ensures that at suction of the first suction unit only liquid, more in particular sewage is drawn in and avoids contamination of the suction unit, by closing the valve, thereby closing off the supply of aerosols.
  • a valve may be mounted at the junction of the first and second suction inlet with the single line, which may close off, depending on which suction unit is operating, either the first or the second suction inlet.
  • the system comprises at least one valve mounted between the single line and second suction unit or mounted at the junction of the first and second suction unit with the single line.
  • the presence of at least one valve mounted between the single line and second suction unit ensures that at suction of the first suction unit no liquids and in particular sewage are drawn in and avoids contamination of the second suction unit, by closing the valve, thereby closing off the supply of liquids, in particular sewage.
  • the presence of at least one valve mounted between the single line and first suction unit ensures that at suction of the second suction unit no aerosols are drawn in and avoids contamination of the first suction unit, by closing the valve, thereby closing off the supply of aerosols.
  • a valve may be mounted at the junction of the first and second suction unit with the single line, which may close off, depending on which suction unit is operating, either the first or the second suction unit.
  • valves mounted between the first suction inlet and the single line or the second suction inlet and the single line or mounted at the junction of the first and second suction inlet with the single line with valves mounted between the single line and first and/or second suction unit or mounted at the junction of the first and second suction unit with the single line.
  • the system comprises at least two valves between the first or second suction units, more preferably the second suction unit, and the single line and a pressure gauge between the two valves.
  • This configuration offers a supplementary safety feature, especially in the case the two valves are mounted between the second suction unit and the single line.
  • liquid for example sewage is accidentally drawn in and passes between the two valves, this would result in a change in pressure, for example a drop, which would be detected by measuring the pressure with the pressure gauge.
  • a drop in pressure could for example automatically result in the shut-down of the second suction unit and/or closing of any further valves, for example any valves provided in between the first suction inlet and the single line, thereby protecting the second suction unit from contamination by the sewage.
  • the single line is made from a plastic material, preferably polyethylene and preferably, the single line is earthed, preferably wherein the single line is made from a plastic material, it is connected to an earthed conducting wire, with the conducting wire running along the longitudinal direction of the line.
  • the single line is preferably made of a plastic material, since such tubing is easily sealed, which is important for liquid, especially sewage flows but also for reasons of cost, since such tubing is relatively cheap, compared to other materials.
  • Polyethylene tubing is commercially widely available and is a material typically used when dealing with liquid flows, especially with flows of chemically aggressive substances, such as is the case with sewage.
  • a flow of liquid aerosols and/or solid aerosols may, however, lead to friction in the line of plastic material and result in the built up of static electricity in the tubing.
  • the built up of static electricity in tubing is a safety hazard and should be avoided, especially if the tubing is made from a non-conductive material such as the above-mentioned polyethylene. Therefore, the single line for example is earthed, for example by connecting it to an earthed conducting wire, for example with the conducting wire running along the longitudinal direction of the line.
  • the earthing of the conducting wire may be present at one or more positions along the wire.
  • the first and second suction inlets for liquids and for solid and/or liquid aerosols, respectively are part of a common service station.
  • a common service station may further comprise any one or more of: an outlet for warm water, soap/water, compressed air, potable water.
  • first and second suction inlets for liquids and for solid and/or liquid aerosols, respectively as part of a common service station.
  • these inlets may be provided in a space-saving manner and be used as a single point of service to for example a cleaning facility for vehicles.
  • the service station would not only provide inlets for the disposal of liquids and solid and/or liquid aerosols but also outlets for for example warm water and/or soap/water and/or compressed air could be provided and offer a more elaborate common service station for cleaning for instance vehicles etc.
  • the valves are controlled by a control module comprising a stack system, preferably a first-in-first-out stack system.
  • the control module for example takes as an input signal a user request to use one of the first and the second inlet and as an output signal a block/release signal to one or more of the valves. So for example a user desiring to suck liquid, for example sewage, performs a user request to do so, for example by pushing a first button, for example on the service station should it be provided. This request is then put on the stack and is for example performed when all previously recorded user requests have been finished by opening or closing the corresponding valves and putting the first suction unit into operation.
  • the user When the user desires to suck aerosols, for example dust, the user request to do so, for example by pushing a corresponding second button, for example on the service station should it be provided. This request is then put on the stack and is for example performed when all previously recorded user requests have been finished by opening or closing the corresponding valves and putting the second suction unit into operation.
  • a corresponding second button for example on the service station should it be provided.
  • This request is then put on the stack and is for example performed when all previously recorded user requests have been finished by opening or closing the corresponding valves and putting the second suction unit into operation.
  • multiple service stations are provided with respective first and second suction inlets connected to a single line, such a system makes it impossible that an operator puts the second suction unit into operation while the first suction unit is in operation such that sewage may nevertheless find its way to the second suction unit.
  • control module may be provided such that when several subsequent requests are present in the stack, for example several requests for sucking sewage or several requests for sucking aerosols through the mutual single line, they are nevertheless allowed at the same time such that these operations can be performed in parallel with respect to each other.
  • a traincleaning system comprising one or more systems according to the invention as well as a railway yard comprising the traincleaning system according to the invention, are preferred embodiments of the present invention.
  • the system according to the invention is particularly suited for use in a traincleaning system or facility, typically located on a railway yard.
  • Traincleaning systems need to be provided in such areas, adjacent to each train to be serviced. Access to trains should be designed so that cleaning staff can reach them safely whilst carrying their equipment, such as for example further tubing for example for connecting the first inlet to the sewage tanks of the train, for connecting the second inlet to a vacuum cleaner nozzle, brush, etc., which may be connected for example to the inlets and outlets of a common service station.
  • Several of such service stations may be present within the traincleaning system.
  • each common service station is connected to a central suction unit for each type of suction inlet; i.e.
  • the different inlets for solid and/or liquid aerosols could each be connected via a single line to a central vacuum cleaner, meaning that several operators could be vacuum cleaning simultaneously via different inlets.
  • a stack system could put the operators using a central sewage suction on hold until a certain number of operators have completed their cleaning, to make sure that only solid and/or liquid aerosols are drawn in by the central vacuum cleaner.
  • Figure 1 shows a schematic view of a suction system according to a preferred embodiment of the invention.
  • Figure 2 shows a schematic view of a railway yard with a traincleaning system comprising a preferred embodiment of the suction system according to the invention.
  • top, bottom, over, under and the like in the description and the claims are used for descriptive purposes and not necessarily for describing relative positions. The terms so used are interchangeable under appropriate circumstances and the embodiments of the disclosure described herein can operate in other orientations than described or illustrated herein.
  • Figure 1 shows a suction system 1 comprising at least two separate suction units 2,3, with the first suction unit 2 for suction of liquids, for example sewage, being connected to a liquid container 4 for storing the sucked liquid and with the second suction unit 3 for suction of aerosols, for example liquid aerosols and/or solid aerosols, being connected to an aerosol container 5 for storing the sucked aerosols.
  • suction units 2,3 are known in the art.
  • the suction units 2,3 are driven by electric means.
  • the first suction unit 2 for suction of liquids is for example a pump, comprising pistons; in such a pump the sewage may be sucked by reciprocation of the pistons and discharged in the liquid container 4 from where the sewage may be further discharged in the sewer.
  • the first suction unit 2 may further comprise a pre-filter, for example a cyclone separator (not shown in the figures), which may be located between the liquid container 4 and the first suction unit 2.
  • the sewage may for instance originate from the collection tank of the toilets of a train.
  • the second suction unit 2 is for example a vacuum cleaner, used to clean the interior of a train compartment.
  • the vacuum cleaner 2 sucks aerosols, for example liquid aerosols and/or solid aerosols, in particular liquids and/or dust and dirt present on for example the floor of a train compartment.
  • the second suction unit 3 may comprise a cyclone separator 11 and a filter 12, as shown in Figure 1 .
  • the cyclone separator 11 may be used to separate liquid aerosols from the sucked air stream and the filter 12 to separate solid aerosols from the sucked air stream.
  • the separated liquid aerosols may for example be discharged to the sewer, as shown in Figure 1 .
  • the solid aerosols separated by the filter 5 are for example stored in the aerosol container 5.
  • the two suction units 3,4 are connected to and in communication with a single line 6, to which at least a first suction inlet 7 for liquids, for example sewage and a second suction inlet 8 for aerosols, for example solid and/or liquid aerosols, are connected.
  • the single line 6 may be made from any material, but preferably the single line 6 is made from a plastic material, in particular polyethylene. Such plastic materials are particularly suited is commercially widely available and is a material typically used when dealing with liquid flows, especially with flows of chemically aggressive substances, such as is the case with sewage. A flow of liquid aerosols and/or solid aerosols may, however, lead to friction in the line of plastic material and result in the built up of static electricity in the single line 6.
  • the single line 6 for example is earthed, for example by connecting it to an earthed conducting wire, for example with the conducting wire running along the longitudinal direction of the line 6.
  • an earthed conducting wire may be made of any conducting material found suitable by the person skilled in the art, for example copper.
  • the conducting wire may run along the longitudinal direction of the line 6 according to any chosen pattern.
  • the earthing of the conducting wire may be present at one or more positions along the wire.
  • the single line is preferably connected to the two suction units 3,4 and to the first suction inlet 7 for liquids and the second suction inlet 8 for aerosols in a liquid-tight manner using the appropriate connection means, known in the art, in order to avoid that the sucked liquids, in particular sewage, seeps out because this is unwanted.
  • At least a first suction inlet 7 for liquids, for example sewage and a second suction inlet 8 for aerosols, for example solid and/or liquid aerosols, are connected to the single line 6.
  • the inlets 7, 8 are for example arranged in such a way that a tube for sucking up the liquid, preferably sewage and a tube for sucking up the aerosols, respectively, may be mounted on the first 7and second inlets 8.
  • the inlet and tube may be coupled using for example a bayonet coupling, a clamp coupling, a screw coupling or any other coupling found suitable by the person skilled in the art.
  • these tubes comprise a flexible part such that the user is able to quickly suck up the liquid and the aerosols, also in hard-to-reach places.
  • the first and second suction inlets may be part of a common service station 13.
  • the common service station 13 may further comprise any one or more of: an outlet for warm water, soap, a combination of water, for example warm water, and soap, compressed air, for example for driving further appliances and/or for driving for example valves such as explained further on, potable water, electrical power outlets, for example for different voltages either alternating current (AC) or direct current (DC), for example for 400V, preferably alternating current, and/or 230V, preferably alternating current, and/or 24V, preferably direct current, etc.
  • the outlets are for example connected to several different supply lines.
  • Each common service station 13 may have its separate set of supply lines and single lines but it is equally possible to use a single line and a single set of supply lines to which the different common service stations are coupled.
  • the common service station 13 can, although not critical for the invention, also be provided with, for example, a heating system for example for heating the interior of the common service station 13 as it has been found that often at least part of the components of the common service station 13 have to be kept above a certain minimal temperature for assuring a correct working of the those components.
  • the heating system 13 can for example be an electrical heating system.
  • a number of common service stations 13 are located adjacent rail road tracks, for example on a railway yard, such the common service stations 13 are adjacent to each train to be serviced. Access to trains should be designed so that cleaning staff can reach them safely whilst carrying their equipment, such as for example further tubing for example for connecting the first inlet 7 to the sewage tanks of the train, for connecting the second inlet 8 to a vacuum cleaner nozzle, brush, etc., which may be connected for example to the inlets 7, 8 and outlets of a common service station 13.
  • At least one valve 9 is arranged such that at suction of the second suction unit 3 the first suction inlet 7 is substantially closed.
  • the opening and the closing of the at least one valve may be controlled by an electric signal, actuating the valve from the closed position in to open position.
  • the system comprises at least one valve 9 mounted between the first suction inlet 7 and the single line 6.
  • the valve 9 may also be mounted at the junction of the first 7 and second suction inlet 8 with the single line 6.
  • the presence of at least one valve 9 mounted between the first suction inlet 7 and the single line 6 ensures that at suction of the second suction unit 3 only liquid aerosols and/or solid aerosols are drawn in and avoid contamination of the suction unit 3, by closing the valve 9, thereby closing off the supply of liquids and in particular sewage.
  • the presence of at least one valve 9 mounted between the second suction inlet 8 and the single line 6 ensures that at suction of the first suction unit 2 only liquid, more in particular sewage is drawn in and avoids contamination of the suction unit 2, by closing the valve 9, thereby closing off the supply of aerosols.
  • a valve may be mounted at the junction of the first 7 and second suction inlet 8 with the single line 6, which may close off, depending on which suction unit is operating, either the first or the second suction inlet.
  • the system 1 may comprise at least one valve mounted between the single line and second suction unit or mounted at the junction of the first and second suction unit with the single line, as shown in Figure 1 .
  • valve 9 mounted between the single line 6 and second suction unit 3 ensures that at suction of the first suction unit 2 no liquids and in particular sewage are drawn in and avoids contamination of the second suction unit 3, by closing the valve 9, thereby closing off the supply of liquids, in particular sewage, ensuring that at suction of the second suction unit 3 no aerosols are drawn in and avoids contamination of the first suction unit 2, by closing the valve 9, thereby closing off the supply of aerosols.
  • a valve may be mounted at the junction of the first 2 and second suction unit 3 with the single line 6, which may close off, depending on which suction unit is operating, either the first 2 or the second suction unit 3.
  • valves 9 mounted between the first suction inlet 7 and the single line 6 or the second suction inlet 8 and the single line 6 or mounted at the junction of the first 7 and second suction inlet 8 with the single line 6 with valves 9 mounted between the single line 6 and first 2 and/or second suction unit 3 or mounted at the junction of the first 2 and second suction unit 3 with the single line 6, as illustrated in Figure 1 .
  • the valve 9 may be any kind of valve compatible with the system described above, for example a pneumatic valve.
  • the system 1 may also comprise at least two valves 9 between the first 2 or second suction units 3, more preferably the second suction unit 3, and the single line 6 and a pressure gauge 14 between the two valves 9.
  • This configuration offers a supplementary safety feature, especially in the case the two valves 9 are mounted between the second suction unit 3 and the single line 6. In case liquid, for example sewage is accidentally drawn in and passes between the two valves, this would result in a change in pressure, for example a drop, which would be detected by measuring the pressure with the pressure gauge.
  • a drop in pressure could for example automatically result in the shut-down of the second suction unit 3 and/or closing of any further valves 9, for example any valves 9 provided in between the first suction inlet 7 and the single line 6, thereby protecting the second suction unit 3 from contamination by the sewage.
  • the valves 9, are controlled by a control module 10 comprising a stack system, preferably a first-in-first-out stack system, taking as an input signal a user request to use one of the inlets/outlets and as an output signal a block/release signal to one or more of the valves 9.
  • the control module 10 may be located on the common service platform 13, as shown in figure 1 .
  • the control module may also take as an input signal a signal from the pressure gauge, if present and may control the power supply to one or more of the first 2 and second suction units 3.
  • the valves 9 may be electrically connected by means of electric cables, as illustrated in figure 1 , to the control module 10, which may comprise one or more microprocessors, which are capable of controlling the block/release signals to one or more of said valves.
  • the control unit 10 may therefore be in a position remote from the one or more valves 9 controlled thereby.
  • the valves 9 can however also be hydraulically and/or pneumatically controlled, in which case the hydraulic and/or pneumatic actuators are electrically controlled by the control module, for example by wires and/or wireless.
  • a user desiring to suck liquid for example sewage
  • performs a user request to do so for example by pushing a first button, for example on the common service station 13 should it be provided.
  • This request is then put on the stack and is for example performed when all previously recorded user requests have been finished by opening or closing the corresponding valves 9 and putting the first suction unit 2 into operation.
  • the sewage is in such case sucked, for example from the sewage container of a train, through a flexible hose, via the first suction inlet 7, in the single line and sucked by the first suction unit 2 into the liquid container 4 and possibly further discharged in the sewer.
  • the user When the user desires to suck aerosols, for example dust, the user request to do so, for example by pushing a corresponding second button, for example on the service station 13 should it be provided. This request is then put on the stack and is for example performed when all previously recorded user requests have been finished by opening or closing the corresponding valves 9 and putting the second suction unit 3 into operation.
  • the sucked up aerosols follow a similar path through the system as described above for the sewage, mutatis mutandis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
EP13160596.6A 2013-03-22 2013-03-22 Système d'aspiration permettant de nettoyer des trains Withdrawn EP2781426A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13160596.6A EP2781426A1 (fr) 2013-03-22 2013-03-22 Système d'aspiration permettant de nettoyer des trains
EP14718923.7A EP2986481B1 (fr) 2013-03-22 2014-03-24 Système d'aspiration permettant de nettoyer des trains
RU2015144686A RU2015144686A (ru) 2013-03-22 2014-03-24 Всасывающая система для очистки поездов
PCT/EP2014/055860 WO2014147259A2 (fr) 2013-03-22 2014-03-24 Système d'aspiration pour le nettoyage des trains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13160596.6A EP2781426A1 (fr) 2013-03-22 2013-03-22 Système d'aspiration permettant de nettoyer des trains

Publications (1)

Publication Number Publication Date
EP2781426A1 true EP2781426A1 (fr) 2014-09-24

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP13160596.6A Withdrawn EP2781426A1 (fr) 2013-03-22 2013-03-22 Système d'aspiration permettant de nettoyer des trains
EP14718923.7A Not-in-force EP2986481B1 (fr) 2013-03-22 2014-03-24 Système d'aspiration permettant de nettoyer des trains

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14718923.7A Not-in-force EP2986481B1 (fr) 2013-03-22 2014-03-24 Système d'aspiration permettant de nettoyer des trains

Country Status (3)

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EP (2) EP2781426A1 (fr)
RU (1) RU2015144686A (fr)
WO (1) WO2014147259A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114620092B (zh) * 2022-01-21 2024-07-02 中国铁路经济规划研究院有限公司 适应高站台侧边停放的动车组的移动上下水设备和方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000146099A (ja) * 1998-11-16 2000-05-26 Nippon Seibi Kk 液体吸引装置
DE20001916U1 (de) 2000-02-03 2000-06-29 Hugo Vogelsang Maschinenbau GmbH, 49632 Essen Wartungsbühne für Servicetätigkeit an Reisezügen
CN2782501Y (zh) * 2005-03-23 2006-05-24 济南铁力环保有限公司 一种列车液体集污地面接收装置
CN1817491A (zh) * 2005-01-13 2006-08-16 新科实业有限公司 清洗物保持工具及保持装置、清洗装置及清洗物清洗方法
WO2011000001A1 (fr) * 2009-06-30 2011-01-06 Ulrike Banny-Reiter Dispositif et procédé de nettoyage de conduits d'eaux usées d'installations de toilettes sous pression
EP2338761A1 (fr) * 2009-12-21 2011-06-29 General Vacuum s.r.l. Système et procédé d'évacuation des eaux usées d'un véhicule

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000146099A (ja) * 1998-11-16 2000-05-26 Nippon Seibi Kk 液体吸引装置
DE20001916U1 (de) 2000-02-03 2000-06-29 Hugo Vogelsang Maschinenbau GmbH, 49632 Essen Wartungsbühne für Servicetätigkeit an Reisezügen
CN1817491A (zh) * 2005-01-13 2006-08-16 新科实业有限公司 清洗物保持工具及保持装置、清洗装置及清洗物清洗方法
CN2782501Y (zh) * 2005-03-23 2006-05-24 济南铁力环保有限公司 一种列车液体集污地面接收装置
WO2011000001A1 (fr) * 2009-06-30 2011-01-06 Ulrike Banny-Reiter Dispositif et procédé de nettoyage de conduits d'eaux usées d'installations de toilettes sous pression
EP2338761A1 (fr) * 2009-12-21 2011-06-29 General Vacuum s.r.l. Système et procédé d'évacuation des eaux usées d'un véhicule

Also Published As

Publication number Publication date
EP2986481A2 (fr) 2016-02-24
RU2015144686A (ru) 2017-05-02
EP2986481B1 (fr) 2017-08-02
WO2014147259A2 (fr) 2014-09-25
WO2014147259A3 (fr) 2014-11-13

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