EP1752589A1 - A vacuum toilet - Google Patents
A vacuum toilet Download PDFInfo
- Publication number
- EP1752589A1 EP1752589A1 EP05388065A EP05388065A EP1752589A1 EP 1752589 A1 EP1752589 A1 EP 1752589A1 EP 05388065 A EP05388065 A EP 05388065A EP 05388065 A EP05388065 A EP 05388065A EP 1752589 A1 EP1752589 A1 EP 1752589A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- toilet
- tank
- inlet
- valve
- sensors
- 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- Withdrawn
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/006—Pneumatic sewage disposal systems; accessories specially adapted therefore
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
- E03D5/003—Grey water flushing systems
Definitions
- the invention relates to vacuum toilets which are suitable for being installed in a vehicle such as a train and a bus.
- Such toilets are known for more than a decade and use compressed air for powering a vacuum generator such as an ejector, and for controlling the opening and closing of inlet and outlet valves to an intermediate tank for receiving and discharging waste material from the toilet bowl.
- Compressed air can also be used for controlling the opening and closing of a valve for flushing the toilet bowl with water.
- EP 679 211 discloses such a toilet with sensors for sensing states of malfunction of the toilet such as lack of flushing water, lack of compressed air, flow obstruction, bowl overflow and below-freezing temperatures.
- the sensors of that toilet are two-state (on/off) switches that change state when a predetermined limit is reached, ie in case of malfunction. Data from the switches representing the use of the toilet over a period are stored, but the diagnostic value is limited.
- the invention provides a toilet with one or more sensors for sensing, during each cycle of operation of the toilet, the values of one or more of the air pressure in the air inlet, the air pressure in the tank, the ambient temperature, the open or closed state of the inlet valve, and the open or closed state of the outlet valve.
- a controller controls the operation of the toilet and during each cycle of operation of the toilet a record is made of the variation of each of the parameters that monitored by the sensors, and the set of records is stored in a memory.
- Data in the memory can be read out or uploaded for detailed analysis, and the data can be presented graphically, in a table, or in other suitable manner for use by service people.
- the memory can be a removable memory such as a memory card, a floppy disk, a CDROM or other suitable storage medium, or the data can be transmitted wirelessly to a centrally located computer. Such transmission can be initiated automatically by the controller in case a malfunction has been diagnosed by the controller, or at the request of a service person or the centrally located computer, eg at regular intervals.
- test report can serve as a basis for demonstrating the history of the toilet, and in case of malfunction a test report serves as a basis of diagnosing the toilet and deciding on the proper action to be taken.
- a service manual will typically be available to the service persons as a tool with instructions for interpreting the registered data, diagnosing and proposing remedy or repair.
- such instructions can also be stored in the controller or its memory, whereby the controller can propose one or more possible diagnoses and one or more possible repairs.
- the registered data may be used to localise the cause of the malfunction, and the faulty component can be identified both in the toilet itself and possibly also in the supply of water and in compressed air and in the sewer system receiving the discharged waste material form the toilet.
- FIG 1 a toilet with a toilet bowl 1.
- the toilet has an air inlet 11 that can be connected to a supply of compressed air eg in a vehicle, in which the toilet is to be installed. Compressed air passes a filter regulator 12.
- the toilet has a water inlet 5 that can be connected to a supply of flushing water in the vehicle through a check valve 6.
- a valve block 14 comprises operating valves V1 - V5, which are controlled by a controller 21 to supply compressed air to pneumatically operated components of the toilet.
- a tank 3 is connected to the toilet bowl 1 via a pneumatically operated inlet valve 2 that can allow waste material in the toilet bowl to flow into the tank 3.
- a vacuum generator 16 preferably in the form of an ejector, is driven by compressed air and is controllable to establish a vacuum, ie a subatmospheric pressure, in the tank 3.
- a typical operating cycle of the toilet is as follows, where details may vary.
- the inlet valve 2 to the tank 3 and the outlet valve 4 from the tank 3 are closed, and the tank 3 is vented to the ambient atmosphere through the ejector 16 and the open pinch valve 17.
- the water pump 7 is filled with water, and the flush valve 8 is closed. No electric current flows in the pneumatic valves V1 - V5 and the entire system is monitored by the controller 21.
- valve V1 When the toilet is activated by a user it enters a vacuum generating phase.
- the valve V1 is activated, and air flows to the ejector 16 and evacuates the tank to a predetermined vacuum.
- the valve V5 is activated and starts the water pump 7.
- the flush valve 8 is opened, and the toilet bowl is flushed with water through a distributor block and flush nozzles 10.
- the valve V3 When the predetermined vacuum is established in the tank, the valve V3 is activated and opens the inlet valve 2, whereby the atmospheric pressure forces the waste material including flush water into the tank 3. Then the inlet valve is again closed, and the waste material and the flush water are enclosed in the tank 3.
- Valve V2 closes the pinch valve 17 to make the tank a closed volume.
- valve V1 is activated, and air flows to the ejector 16, but because the pinch valve 17 is closed the air flows into the tank to establish a superatmospheric pressure (ie higher than atmospheric pressure) in the tank 3.
- the outlet valve 4 is opened, and the pressure in the tank forces the waste material out of the tank 3 and into a collecting tank in the vehicle.
- the toilet has the following new features, which can also be implemented in toilets of different construction and function.
- the toilet has a first pressure sensor 13 that senses values of the air pressure in the air inlet, and a second pressure sensor 15 that senses values of the air pressure in the tank 3, both throughout each cycle of operation of the toilet.
- the controller 21 stores the sensed pressure values in a memory 20.
- a temperature sensor 19 senses the ambient temperature, and in case the ambient temperature drops below a predetermined temperature slightly above the freezing temperature of water, the controller will initiate an emptying cycle and prevent the use of the toilet until the temperature again rises to a safe value with no risk of freezing.
- Stored data representing the values sensed by the one or more sensors (13, 15, 18, 19) can be processed in the controller 21, or the data can be transferred to a computer external to the toilet, eg to a centrally located computer.
- the memory 20 can be a solid state memory or a removable storage medium that is moved with the data, or the transfer can be a wired or wireless transmission.
- figure 2 is shown graphically the pressures in the air inlet and in the tank and the opening and closing of valves during a cycle of operation of the toilet of the invention.
- Graphic presentation of the data is better suited for visual inspection by humans than figures in tables, which are more suited for processing in a computer.
- the curves can be presented individually or as an average of several curves.
- the data can be processed to show tendencies over time, and statistical calculations etc. can be made.
- figure 2 is also shown the currents controlling the valves V1 - V5 in the valve block 14 and the signal from the reed switch 18 indicating the open or closed state of the inlet valve 2.
- the time scale is the same in both parts of the figure, whereby the relative timing of events becomes clear.
- the build-up of vacuum and pressure in the tank can be followed, and it can be determined if the capacity of the supply of compressed air is sufficient.
- the error can be localised, and remedy of the malfunction can be suggested and carried out.
- a toilet of the invention can have one or more, and any combination, of the sensors 13, 15, 18, 19 for sensing, during each cycle of operation of the toilet, the values of one or more of the air pressure in the air inlet 11, the air pressure in the tank 3, the ambient temperature, the open or closed state of the inlet valve 2, and the open or closed state of the outlet valve 4.
- the toilet of the invention can have a wireless transmitter, eg operating on a public mobile telephone network such as GSM or UMTS based networks, and it can be arranged to transmit a use and status report at regular intervals or in case of malfunction. These reports are received centrally, and in case of malfunction of a toilet the carrying vehicle can be called for repair.
- a wireless transmitter eg operating on a public mobile telephone network such as GSM or UMTS based networks
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
Abstract
Description
- The invention relates to vacuum toilets which are suitable for being installed in a vehicle such as a train and a bus.
- Such toilets are known for more than a decade and use compressed air for powering a vacuum generator such as an ejector, and for controlling the opening and closing of inlet and outlet valves to an intermediate tank for receiving and discharging waste material from the toilet bowl. Compressed air can also be used for controlling the opening and closing of a valve for flushing the toilet bowl with water.
-
EP 679 211 - The invention provides a toilet with one or more sensors for sensing, during each cycle of operation of the toilet, the values of one or more of the air pressure in the air inlet, the air pressure in the tank, the ambient temperature, the open or closed state of the inlet valve, and the open or closed state of the outlet valve. A controller controls the operation of the toilet and during each cycle of operation of the toilet a record is made of the variation of each of the parameters that monitored by the sensors, and the set of records is stored in a memory.
- Data in the memory can be read out or uploaded for detailed analysis, and the data can be presented graphically, in a table, or in other suitable manner for use by service people. The memory can be a removable memory such as a memory card, a floppy disk, a CDROM or other suitable storage medium, or the data can be transmitted wirelessly to a centrally located computer. Such transmission can be initiated automatically by the controller in case a malfunction has been diagnosed by the controller, or at the request of a service person or the centrally located computer, eg at regular intervals.
- This allows a full and detailed diagnosis of the toilet as well as documentation of the status and history of the toilet. At the manufacturing stage each toilet is tested to meet the specifications, and a test report including an individual serial number is issued and supplied with the toilet as documentation to the customer. When an installed toilet is tested a test report can be issued. Such test reports can serve as a basis for demonstrating the history of the toilet, and in case of malfunction a test report serves as a basis of diagnosing the toilet and deciding on the proper action to be taken.
- A service manual will typically be available to the service persons as a tool with instructions for interpreting the registered data, diagnosing and proposing remedy or repair. However, such instructions can also be stored in the controller or its memory, whereby the controller can propose one or more possible diagnoses and one or more possible repairs. The registered data may be used to localise the cause of the malfunction, and the faulty component can be identified both in the toilet itself and possibly also in the supply of water and in compressed air and in the sewer system receiving the discharged waste material form the toilet.
-
- Figure 1 shows schematically shown a toilet of the invention and its functional components,
- Figure 2 shows schematically the pressures in the air inlet to the toilet and in the tank during a cycle of operation of the toilet in figure 1, where the pressures are linked in time together with the opening and closing of valves during a cycle of operation of the toilet. Relative timing and the actual pressures are not necessarily drawn to scale.
- In figure 1 is shown a toilet with a
toilet bowl 1. The toilet has anair inlet 11 that can be connected to a supply of compressed air eg in a vehicle, in which the toilet is to be installed. Compressed air passes a filter regulator 12. Likewise, the toilet has awater inlet 5 that can be connected to a supply of flushing water in the vehicle through acheck valve 6. Avalve block 14 comprises operating valves V1 - V5, which are controlled by acontroller 21 to supply compressed air to pneumatically operated components of the toilet. - A
tank 3 is connected to thetoilet bowl 1 via a pneumatically operatedinlet valve 2 that can allow waste material in the toilet bowl to flow into thetank 3. Avacuum generator 16, preferably in the form of an ejector, is driven by compressed air and is controllable to establish a vacuum, ie a subatmospheric pressure, in thetank 3. - A typical operating cycle of the toilet is as follows, where details may vary. In standby the
inlet valve 2 to thetank 3 and the outlet valve 4 from thetank 3 are closed, and thetank 3 is vented to the ambient atmosphere through theejector 16 and theopen pinch valve 17. The water pump 7 is filled with water, and theflush valve 8 is closed. No electric current flows in the pneumatic valves V1 - V5 and the entire system is monitored by thecontroller 21. - When the toilet is activated by a user it enters a vacuum generating phase. The valve V1 is activated, and air flows to the
ejector 16 and evacuates the tank to a predetermined vacuum. The valve V5 is activated and starts the water pump 7. Theflush valve 8 is opened, and the toilet bowl is flushed with water through a distributor block andflush nozzles 10. When the predetermined vacuum is established in the tank, the valve V3 is activated and opens theinlet valve 2, whereby the atmospheric pressure forces the waste material including flush water into thetank 3. Then the inlet valve is again closed, and the waste material and the flush water are enclosed in thetank 3. Valve V2 closes thepinch valve 17 to make the tank a closed volume. - Next, the valve V1 is activated, and air flows to the
ejector 16, but because thepinch valve 17 is closed the air flows into the tank to establish a superatmospheric pressure (ie higher than atmospheric pressure) in thetank 3. Now the outlet valve 4 is opened, and the pressure in the tank forces the waste material out of thetank 3 and into a collecting tank in the vehicle. - The toilet is now emptied, and the system again goes into standby. The spring in the pump 7 will again cause the pump to be filled with water.
- So far the described toilet is known.
- In addition to the above the toilet according to the invention has the following new features, which can also be implemented in toilets of different construction and function. The toilet has a
first pressure sensor 13 that senses values of the air pressure in the air inlet, and asecond pressure sensor 15 that senses values of the air pressure in thetank 3, both throughout each cycle of operation of the toilet. Thecontroller 21 stores the sensed pressure values in amemory 20. - A
switch 18, eg a reed switch, senses the open and closed states of theinlet valve 2. If desired, a corresponding switch can be arranged to sense the open and closed states of the outlet valve 4. Sensors may also be arranged to sense the actual active or passive state of the operating valves V1 - V5, or the electrical driving signals to each of the operating valves can be stored. Atemperature sensor 19 senses the ambient temperature, and in case the ambient temperature drops below a predetermined temperature slightly above the freezing temperature of water, the controller will initiate an emptying cycle and prevent the use of the toilet until the temperature again rises to a safe value with no risk of freezing. - Stored data representing the values sensed by the one or more sensors (13, 15, 18, 19) can be processed in the
controller 21, or the data can be transferred to a computer external to the toilet, eg to a centrally located computer. Thememory 20 can be a solid state memory or a removable storage medium that is moved with the data, or the transfer can be a wired or wireless transmission. - In figure 2 is shown graphically the pressures in the air inlet and in the tank and the opening and closing of valves during a cycle of operation of the toilet of the invention. Graphic presentation of the data is better suited for visual inspection by humans than figures in tables, which are more suited for processing in a computer. The curves can be presented individually or as an average of several curves. The data can be processed to show tendencies over time, and statistical calculations etc. can be made.
- In figure 2 is also shown the currents controlling the valves V1 - V5 in the
valve block 14 and the signal from thereed switch 18 indicating the open or closed state of theinlet valve 2. The time scale is the same in both parts of the figure, whereby the relative timing of events becomes clear. In particular, the build-up of vacuum and pressure in the tank can be followed, and it can be determined if the capacity of the supply of compressed air is sufficient. In case of malfunction the error can be localised, and remedy of the malfunction can be suggested and carried out. - A toilet of the invention can have one or more, and any combination, of the
sensors air inlet 11, the air pressure in thetank 3, the ambient temperature, the open or closed state of theinlet valve 2, and the open or closed state of the outlet valve 4. - The toilet of the invention can have a wireless transmitter, eg operating on a public mobile telephone network such as GSM or UMTS based networks, and it can be arranged to transmit a use and status report at regular intervals or in case of malfunction. These reports are received centrally, and in case of malfunction of a toilet the carrying vehicle can be called for repair.
Claims (5)
- A toilet comprising- a toilet bowl (1),- a tank (3) with an inlet and an outlet,- an air inlet (11) for connecting to a source of compressed air,- a vacuum generator (16) driven by compressed air and controllable to establish a vacuum in the tank (3),- an inlet valve (2) between the toilet bowl (1) and the tank inlet, the inlet valve (2) being controllable, when a predetermined vacuum level is established in the tank (3), to allow flow between the toilet bowl (1) and the tank (3) so as to receive waste material from the toilet bowl (1) in the tank (3),- an outlet valve (4) controllable to allow discharging the received waste material in the tank (3) through the outlet of the tank,- a water inlet (5) for connecting to a source of water,- one or more sensors (13, 15, 18, 19) for sensing, during each cycle of operation of the toilet, the values of one or more of the air pressure in the air inlet (11), the air pressure in the tank (3), the ambient temperature, the open or closed state of the inlet valve (2), and the open or closed state of the outlet valve (4),- a memory (20),- a controller (21) adapted to control the operation of the toilet and to store, in the memory (20), data representing the values sensed by the one or more sensors (13, 15, 18, 19) during each cycle of operation of the toilet.
- A method for operating a toilet having- a toilet bowl (1),- a tank (3) with an inlet and an outlet,- an air inlet (11) connected to a source of compressed air,- a vacuum generator (16) driven by compressed air and controllable to establish a vacuum in the tank (3),- an inlet valve (2) between the toilet bowl (1) and the tank inlet, the inlet valve (2) being controllable to allow flow communication between the toilet bowl (1) and the tank (3) so as to receive waste material from the toilet bowl (1) in the tank (3),- an outlet valve (4) controllable to allow discharging the received waste material in the tank (3) through the outlet of the tank,- a water inlet (5) connected to a source of water,- one or more sensors (13, 15, 18, 19) for sensing the values of one or more of the air pressure in the air inlet (11), the air pressure in the tank (3), the ambient temperature, the open or closed state of the inlet valve (2), and the open or closed state of the outlet valve (4),- a memory (20),- a controller (21) adapted to control the operation of the toilet,the method comprising storing, in the memory (20), data representing the values sensed by the one or more sensors (13, 15, 18, 19) during each cycle of operation of the toilet.
- A method according to claim 2 comprising transferring stored data representing the values sensed by the one or more sensors (13, 15, 18, 19) to a computer external to the toilet.
- A method according to claim 2 or 3 wherein stored data representing the values sensed by the one or more sensors (13, 15, 18, 19) are presented graphically to show the variation of the values during one or more cycles of operation of the toilet.
- A method according to any one of claims 2 - 4 comprising performing statistical operations on the data.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05388065A EP1752589A1 (en) | 2005-08-12 | 2005-08-12 | A vacuum toilet |
PCT/DK2006/000442 WO2007019854A1 (en) | 2005-08-12 | 2006-08-11 | A vacuum toilet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05388065A EP1752589A1 (en) | 2005-08-12 | 2005-08-12 | A vacuum toilet |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1752589A1 true EP1752589A1 (en) | 2007-02-14 |
Family
ID=35517031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05388065A Withdrawn EP1752589A1 (en) | 2005-08-12 | 2005-08-12 | A vacuum toilet |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1752589A1 (en) |
WO (1) | WO2007019854A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007131512A1 (en) * | 2006-05-11 | 2007-11-22 | Semvac A/S | A vacuum toilet system and a method for controlling functions thereof |
WO2008057076A1 (en) * | 2006-11-06 | 2008-05-15 | Airvac, Inc. | Vacuum sewage system with wireless alarm |
WO2010133448A1 (en) * | 2009-05-19 | 2010-11-25 | Airbus Operations Gmbh | Wc monument comprising a receiving region for a mobile sanitary unit |
CN102561488A (en) * | 2012-01-12 | 2012-07-11 | 深圳市绿恒科技有限公司 | Vacuum pollutant discharging device |
RU2486089C2 (en) * | 2010-09-03 | 2013-06-27 | Общество С Ограниченной Ответственностью Научно-Производственный Центр "Экспресс" | Wc complex |
CN103303328A (en) * | 2013-06-27 | 2013-09-18 | 宁波南车时代传感技术有限公司 | Pneumatic control unit of excrement collecting system for bullet train |
AT516581A1 (en) * | 2014-12-04 | 2016-06-15 | Walter Dipl Ing Lorenz | Method for operating a vacuum toilet |
US10001787B2 (en) | 2014-06-02 | 2018-06-19 | Aqseptence Group, Inc. | Controller for vacuum sewage system |
DE102018006919A1 (en) * | 2018-08-31 | 2020-03-05 | ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft | Vacuum sewage device, method and electronic control unit for controlling a vacuum sewage device |
DE202020001171U1 (en) | 2020-03-22 | 2020-04-21 | Global Fliegenschmidt Gmbh | Device for emptying a toilet bowl with a suction valve in the outlet with a holding tank and a vacuum pump |
WO2021094550A1 (en) * | 2019-11-15 | 2021-05-20 | Aco Severin Ahlmann Gmbh & Co. Kg | Vacuum wastewater device and method |
DE102021002000B3 (en) | 2021-04-16 | 2022-07-21 | Energietechnik Spreter GmbH | Separating toilet with suction line |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202014003059U1 (en) * | 2014-04-10 | 2015-07-31 | Evac Gmbh | Pneumatic compact vacuum toilet |
CN111287297A (en) * | 2020-03-20 | 2020-06-16 | 劲旅环境科技股份有限公司 | Mobile toilet sewage discharge system and control method thereof |
CN112660185A (en) * | 2020-12-24 | 2021-04-16 | 湖南真创环保科技有限公司 | Method for deodorizing and preventing virus from spreading in locomotive toilet in emergency state |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994016158A1 (en) * | 1993-01-16 | 1994-07-21 | Sanivac Vakuumtechnik Gmbh | Device for controlling the operation of a vacuum toilet |
US5644802A (en) * | 1993-09-21 | 1997-07-08 | Evac Ab | Vacuum sewer arrangement |
-
2005
- 2005-08-12 EP EP05388065A patent/EP1752589A1/en not_active Withdrawn
-
2006
- 2006-08-11 WO PCT/DK2006/000442 patent/WO2007019854A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994016158A1 (en) * | 1993-01-16 | 1994-07-21 | Sanivac Vakuumtechnik Gmbh | Device for controlling the operation of a vacuum toilet |
EP0679211A1 (en) | 1993-01-16 | 1995-11-02 | Sanivac Vakuumtechnik Gmbh | Device for controlling the operation of a vacuum toilet. |
US5644802A (en) * | 1993-09-21 | 1997-07-08 | Evac Ab | Vacuum sewer arrangement |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007131512A1 (en) * | 2006-05-11 | 2007-11-22 | Semvac A/S | A vacuum toilet system and a method for controlling functions thereof |
WO2008057076A1 (en) * | 2006-11-06 | 2008-05-15 | Airvac, Inc. | Vacuum sewage system with wireless alarm |
CN102428002B (en) * | 2009-05-19 | 2014-12-03 | 空中客车营运有限公司 | WC monument comprising a receiving region for a mobile sanitary unit |
WO2010133448A1 (en) * | 2009-05-19 | 2010-11-25 | Airbus Operations Gmbh | Wc monument comprising a receiving region for a mobile sanitary unit |
CN102428002A (en) * | 2009-05-19 | 2012-04-25 | 空中客车营运有限公司 | WC monument comprising a receiving region for a mobile sanitary unit |
US8424130B2 (en) | 2009-05-19 | 2013-04-23 | Airbus Operations Gmbh | Toilet monument with receptacle for a mobile sanitary unit |
RU2486089C2 (en) * | 2010-09-03 | 2013-06-27 | Общество С Ограниченной Ответственностью Научно-Производственный Центр "Экспресс" | Wc complex |
CN102561488A (en) * | 2012-01-12 | 2012-07-11 | 深圳市绿恒科技有限公司 | Vacuum pollutant discharging device |
CN102561488B (en) * | 2012-01-12 | 2015-05-06 | 深圳绿恒环保科技有限公司 | Vacuum pollutant discharging device |
CN103303328A (en) * | 2013-06-27 | 2013-09-18 | 宁波南车时代传感技术有限公司 | Pneumatic control unit of excrement collecting system for bullet train |
CN103303328B (en) * | 2013-06-27 | 2016-06-29 | 宁波南车时代传感技术有限公司 | Motor-car feces collecting system pneumatic control unit |
US10001787B2 (en) | 2014-06-02 | 2018-06-19 | Aqseptence Group, Inc. | Controller for vacuum sewage system |
AT516581A1 (en) * | 2014-12-04 | 2016-06-15 | Walter Dipl Ing Lorenz | Method for operating a vacuum toilet |
DE102018006919A1 (en) * | 2018-08-31 | 2020-03-05 | ACO Severin Ahlmann GmbH & Co Kommanditgesellschaft | Vacuum sewage device, method and electronic control unit for controlling a vacuum sewage device |
WO2021094550A1 (en) * | 2019-11-15 | 2021-05-20 | Aco Severin Ahlmann Gmbh & Co. Kg | Vacuum wastewater device and method |
JP2023503262A (en) * | 2019-11-15 | 2023-01-27 | アーツェーオー アールマン エスエー ウント コー.カーゲー | Vacuum wastewater device and method |
DE202020001171U1 (en) | 2020-03-22 | 2020-04-21 | Global Fliegenschmidt Gmbh | Device for emptying a toilet bowl with a suction valve in the outlet with a holding tank and a vacuum pump |
DE102021002000B3 (en) | 2021-04-16 | 2022-07-21 | Energietechnik Spreter GmbH | Separating toilet with suction line |
EP4074904A1 (en) | 2021-04-16 | 2022-10-19 | Energietechnik Spreter GmbH | Separation toilet with a suction line |
Also Published As
Publication number | Publication date |
---|---|
WO2007019854A1 (en) | 2007-02-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1752589A1 (en) | A vacuum toilet | |
US5515555A (en) | Device for controlling the operation of a vacuum toilet | |
CN107000656B (en) | Sanitary unit with monitoring device | |
US5133853A (en) | Sewage system | |
US7722331B2 (en) | Control system for air-compressing apparatus | |
US20040149436A1 (en) | System and method for automating or metering fluid recovered at a well | |
JPH0790904A (en) | Vacuum toilet device | |
US20060130510A1 (en) | Modular recovery apparatus and method | |
ITMI981330A1 (en) | RESTARTING METHOD AFTER INTERRUPTION OF OPERATION | |
US8794135B1 (en) | System and method for controlling compactor systems | |
US6804840B2 (en) | Positive pressure waste transfer system | |
KR20220128336A (en) | Vacuum sewage device and method | |
CN205397114U (en) | Remove automatic electrical control device in compression rubbish railway carriage or compartment and remove compression rubbish railway carriage or compartment | |
US20220268134A1 (en) | Automated Waste Disposal System for Waste Tank at Wellsite | |
KR100751279B1 (en) | Vacuum toilet control system | |
CN111655946A (en) | Controlling a vacuum sewer system | |
US6470925B2 (en) | Vacuum system | |
CN114616376A (en) | Urinal system, water consumer system with urinal system and method for operating urinal system | |
CN112639230A (en) | Vacuum sewage device, method for controlling a vacuum sewage device and electronic control unit | |
RU2316632C2 (en) | Vacuum toilet system | |
CN111688745B (en) | Train excrement collecting system, control method and train | |
WO2005033424A3 (en) | Toilet tank fill valve and method of operation | |
CN110712660A (en) | Vacuum excrement collecting system for passenger train, passenger train and method | |
US6206647B1 (en) | Waste water disposal system | |
RU76304U1 (en) | FORCED VALVE OPENING DEVICE FOR VEHICLE TOILET SYSTEM |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR MK YU |
|
17P | Request for examination filed |
Effective date: 20070808 |
|
17Q | First examination report despatched |
Effective date: 20070912 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: GLOVA GMBH |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20111029 |