EP3612320A1 - Druckreinigungsvorrichtung, verfahren zum betreiben einer druckreinigungsvorrichtung und verfahren zum erkennen eines schlauchvorsatzes - Google Patents
Druckreinigungsvorrichtung, verfahren zum betreiben einer druckreinigungsvorrichtung und verfahren zum erkennen eines schlauchvorsatzesInfo
- Publication number
- EP3612320A1 EP3612320A1 EP18717909.8A EP18717909A EP3612320A1 EP 3612320 A1 EP3612320 A1 EP 3612320A1 EP 18717909 A EP18717909 A EP 18717909A EP 3612320 A1 EP3612320 A1 EP 3612320A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- cleaning device
- operating
- operating pressure
- generating unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 147
- 238000000034 method Methods 0.000 title claims description 16
- 239000012530 fluid Substances 0.000 claims abstract description 94
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000012549 training Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003213 activating effect Effects 0.000 description 4
- 238000001595 flow curve Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000002308 calcification Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 241000282472 Canis lupus familiaris Species 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
- B08B3/028—Spray guns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
- B05B1/1627—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock
- B05B1/1636—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements
- B05B1/1645—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements the outlets being rotated during selection
- B05B1/1654—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements the outlets being rotated during selection about an axis parallel to the liquid passage in the stationary valve element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
- B05B1/169—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets having three or more selectively effective outlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0223—Electric motor pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0282—Safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/09—Flow through the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
Definitions
- the present invention relates to a pressure cleaning device having a pressure generating unit for pressurizing a fluid and for delivering a pressurized fluid via a hose attachment, preferably via a handgun or a cleaning syringe, wherein the pressure cleaning device is operable in at least two different operating modes.
- a pressure cleaning device with a pressure generating unit for pressurizing a fluid and for delivering a pressurized fluid via a hose attachment known.
- the hose attachment is designed as a handgun or cleaning syringe.
- the pressure cleaning device is operable in at least two different operating modes, wherein each operating mode is associated with a fixed operating pressure.
- the present invention provides a novel pressure cleaning device having a pressure generating unit for pressurizing a fluid and delivering a pressurized fluid via a hose attachment, preferably via a handgun or a cleaning syringe, the pressure cleaning device being operable in at least two different operating modes.
- the pressure generating unit is associated with a preferably electrical pressure sensor for determining a respective current operating pressure and / or a flow rate sensor for determining a respectively current flow rate and a control device, wherein the control device is designed to to control the printer generating unit in particular on the basis of a respectively set operating mode as a function of a respectively current determined operating pressure and / or a respective current determined flow rate.
- the invention thus makes it possible to provide a pressure-cleaning device in which an efficient and reliable operation can be made possible by the control of the pressure-generating unit on the basis of the respectively set operating mode as a function of a currently determined operating pressure and / or a respectively determined flow rate.
- an energy-saving pressure cleaning device can be provided simply and easily.
- the pressure-cleaning device is preferably designed in the manner of a low-pressure cleaning device, wherein the pressure-generating unit is designed to generate a maximum operating pressure of less than 25 bar, preferably less than 20 bar and more preferably less than 15 bar, and wherein the low-pressure cleaning device can be operated without a nozzle spacing element, in particular without a lance ,
- a pressure cleaning device can be provided, which can be used for an application for the cleaning of light to medium soiling.
- the pressure generating unit has a motor, in particular an electric motor, and each of the at least two different operating modes is assigned a separate maximum operating pressure and / or the respective operating mode is assigned a predetermined speed of the motor, wherein the control device is designed to control the To control engine.
- a motor in particular an electric motor
- each of the at least two different operating modes is assigned a separate maximum operating pressure and / or the respective operating mode is assigned a predetermined speed of the motor
- the control device is designed to control the To control engine.
- Each of the at least two different operating modes is preferably each associated with a separate maximum operating pressure and the control device is designed to prevent exceeding the respective separate maximum operating pressure.
- exceeding a maximum operating pressure can be easily and simply prevented so that a safe operation of the pressure cleaning device is made possible.
- a separate minimum operating pressure or a switch-on pressure is assigned to each of the at least two different operating modes, and the control device is designed to prevent it from falling below the respective separate minimum operating pressure and / or at least the engine when the switch-on pressure is undershot activate.
- the control device preferably prevents the respective separate maximum operating pressure from being exceeded by deactivating the pressure-generating unit and / or activates at least the pressure-generating unit when the respective separate minimum operating pressure and / or the switch-on pressure are undershot.
- a safe and reliable operation of the pressure-cleaning device can be enabled.
- control device is designed to deactivate the pressure generating unit when a predetermined dry-running operating pressure occurs, which in particular signals an empty storage tank.
- a predetermined dry-running operating pressure occurs, which in particular signals an empty storage tank.
- control device is designed to set a maximum and / or minimum operating pressure as a function of a current one
- the maximum and / or minimum operating pressure is preferably a predetermined percentage or predetermined absolute pressure greater or less than the currently determined operating pressure.
- maximum and / or minimum operating pressures adapted to the currently determined operating pressure can be made simple and uncomplicated, as a result of which energy consumption of the pressure-cleaning device can be at least approximately reduced.
- the control device is designed to detect a hose attachment or a fluid jet used as a function of a current operating pressure and / or an operating pressure curve and / or a current flow rate or flow rate curve.
- an automatic adjustment of the pressure cleaning device can be made possible in a simple manner, whereby an untrained user an application-specific adjustment and efficient use of the pressure cleaning device is made possible.
- the control device is preferably designed to store or output at least one piece of information about the currently used hose attachment or the type of jet used, in particular to output it to a mobile terminal or to another man-machine interface. Thus, information determined simply and simply by the control device can be communicated to a user of the pressure-cleaning device.
- control device is designed to derive a state of the pressure-cleaning device or to perform a condition monitoring of the pressure-cleaning device as a function of a current operating pressure and / or an operating pressure curve and / or a current flow rate or flow rate curve.
- a safe and at least substantially risk-free operation of the pressure cleaning device can be made possible.
- the pressure generating unit has a pump, wherein the preferably electrical pressure sensor is arranged at a pump outlet of the pump.
- the preferably electrical pressure sensor is arranged at a pump outlet of the pump.
- a battery pack is provided at least for the power supply of the pressure generating unit, the preferably electrical pressure sensor and the control device.
- the control device is preferably designed to switch off the pressure cleaning device after a predetermined period of time without actuation of the hose attachment or without falling below the switch-on pressure.
- a safe and reliable shutdown of the pressure cleaning device can be made possible.
- the present invention provides a method for operating a pressure cleaning device, in particular a pressure cleaning device described above, with a pressure generating unit for pressurization of a fluid and for delivering a pressurized fluid via a hose attachment, preferably via a handgun or a cleaning syringe, wherein the Pressure cleaning device is operable in at least two different operating modes.
- a respective current operating pressure and / or a flow rate sensor each current flow is determined by a preferred electrical pressure sensor and the pressure cleaning device is in particular based on a respectively set operating mode in response to a respective current determined operating pressure and / or one respectively current determined flow rate controlled by a control device.
- the invention thus makes it possible to provide a method for operating a pressure-cleaning device, in which an efficient operation of the pressure-cleaning device is made possible by the control on the basis of the respectively set operating mode as a function of a currently determined operating pressure and / or a respective current determined flow rate can.
- an energy-saving method for operating the pressure cleaning device can be provided simply and easily.
- the present invention provides a method for detecting a hose attachment, in particular a Fluidstrahlart a hose attachment of a pressure cleaning device, in particular a pressure cleaning device described above, with a pressure generating unit for pressurizing a fluid.
- a pressure generating unit for pressurizing a fluid.
- a respective current operating pressure and / or a current flow rate is determined via a flow rate sensor, and a control device is created on the basis of the determined operating pressure and / or the determined Flow rate an operating pressure curve and / or flow rate curve and correlates these for detecting the Schlauchvorsatzes or the Fluidstrahlart with stored operating pressure curves and / or flow rate curves, in particular to allow adjustment of an operating mode of the pressure generating unit.
- the invention thus makes it possible to provide a method for detecting a hose attachment, in which an automatic adjustment of a suitable operating mode can be made possible by determining the operating pressure and / or the flow rate.
- a setting of a suitable operating mode can be made possible in a simple manner.
- FIG. 1 is a perspective view of a pressure cleaning device with a hose attachment according to an embodiment
- FIG. 2 is a front view of the hose attachment of FIG. 1,
- FIG. 3 is a perspective view of a pressure generating unit associated with the pressure cleaning device of FIG. 1;
- FIG. 4 is a schematic representation of the pressure cleaning device of FIG.
- FIG. 5 is a schematic representation of the pressure cleaning device of FIG.
- FIG. 6 is a simplified diagram of an exemplary operating pressure curve
- FIG. 7 shows an exemplary operating mode operating pressure table
- 8 shows an exemplary operating mode operating pressure table as a function of different fluid jet types
- Fig. 1 1 an exemplary operating pressure curve for detecting a nozzle change with an adjustment of a maximum and minimum operating pressure and with a flow rate profile.
- FIG. 1 shows a cleaning device 100 with a housing 1 10, which is embodied by way of example as a pressure-cleaning device.
- a pressure-generating unit 120 for pressurizing a fluid is preferably arranged in the housing 110.
- the pressure cleaning device 100 is designed in the manner of a low-pressure cleaning device, wherein the
- Pressure generating unit 120 for generating a maximum operating pressure less than 25 bar, preferably less than 20 bar and more preferably less than 15 bar is formed.
- the low-pressure cleaning device is preferably operable without a nozzle spacing element, in particular without a lance.
- the pressure-cleaning device 1 00 may also be designed as a high-pressure cleaning device.
- Such a preferably multifunctional pressure cleaning device 100 can be used in a wide variety of areas, especially for light to medium cleaning tasks, eg for cleaning objects such as cars, eg cars, bicycles, especially mountain bikes, and / or for cleaning toys, especially children's toys, and / or for cleaning articles of clothing, for example boots, in particular rubber boots, and / or for cleaning implements, in particular Gardening tools, such as shovels, spades, etc., and / or for cleaning pets, such as horses, dogs or the like.
- the pressure cleaning device 100 can also be found in the garden, for example, for the application of plants, application and / or camping, eg as a mobile shower, application. It should be noted that the described
- Pressure cleaning device 100 also find use in any other applications.
- the pressure generating unit 120 has a motor, not shown.
- the engine is preferably designed as an internal combustion engine and / or electric motor. In the case of an electric motor can be used for off-grid
- Power supply a battery pack be provided and / or network-dependent power supply can be provided a cable connection.
- the battery pack be provided and / or network-dependent power supply can be provided a cable connection.
- Motor designed as an electric motor, which is associated with a battery pack.
- the pressure cleaning device 100 preferably includes at least one, illustratively two wheels 14 for travel on any one of them
- the wheels 1 14 are formed such that a
- the wheels 1 14 allow a preferably stable design a secure footing and thus safe operation.
- the wheels 1 14 allow a preferably stable design a secure footing and thus safe operation.
- Pressure cleaning device 100 is the housing 1 10 preferably assigned at least one handle 1 12.
- the handle 1 12 is telescopic.
- the pressure-cleaning device 100 has at least one carrying handle which is designed to carry the pressure-cleaning device 100 in the manner of a bag and / or a backpack.
- the pressure-cleaning device 100 preferably has at least one fluid tank 1 16.
- the fluid tank 1 16 is fixedly connected to the housing 1 10 according to one embodiment.
- the fluid tank 1 16 may be detachable from the housing 110 so that it can be removed from the housing 110, for example for filling and / or cleaning.
- the fluid tank 1 16 preferably has a capacity of 151.
- an embodiment of the fluid tank 1 16 with a Capacity of 151 can not be seen as limiting the invention.
- the capacity of the fluid tank 1 16 may be smaller or larger than 151.
- the pressure cleaning device 100 may also be connected via an external fluid source, eg, a lake, stream, faucet, etc.
- Connection element e.g. a connection adapter, arranged on the housing 1 10, via which the pressure cleaning device 100 with the external fluid source for fluid intake is connectable.
- Cleaning fluid e.g. a cleaning agent, be provided.
- the pressure cleaning device 100 an operating unit 1 18, which has at least one on / off control element 1 19, which for activating and / or deactivating or for switching on and / or off the
- Pressure cleaning device 100 is formed.
- the control unit 1 18 can also be used e.g. for setting a selectable operating mode, an operating pressure, an engine speed and / or any other parameter, in particular a drive parameter, be formed.
- the operating unit 118 preferably has an input unit 17, by means of which a selectable operating mode, an operating pressure, an engine speed and / or any other parameters, in particular a drive parameter, can be set.
- This input unit 1 17 is preferably in the manner of a
- the control unit 1 18 may also be associated with a display device which is integrated in the housing 1 10.
- the control unit 1 18 may alternatively or optionally also be designed externally, wherein e.g. an operation of the pressure cleaning device 100 via a smartphone, tablet or the like can be done.
- the pressure-cleaning device 100 can preferably be connected to a hose attachment 150 via a hose 140 for the controllable delivery of the pressurized fluid.
- the hose 140 is adapted to a maximum possible operating pressure of the pressure cleaning device 100.
- the hose 140 preferably in the manner of a high-pressure hose for a high-pressure cleaning device and / or preferably in the manner of a low-pressure hose, for example a garden hose, for a
- Low-pressure cleaning device may be formed.
- the tube 140 may be manually wound on the housing 1 10 or preferably be wound up via an automatic winding device.
- the hose 140 may also be designed in the manner of a spiral hose.
- an end of the hose 140 facing the pressure-cleaning device 100 may be firmly connected to the pressure-cleaning device 100 or may be detachably arranged on the pressure-cleaning device 100.
- the hose 140 is detachably mounted on a coupling element 124 of the pressure cleaning device 100.
- the hose attachment 150 may be fixedly connected to the hose 140 or preferably releasably via a
- the hose attachment 150 has a housing 152, a device 160 for adjusting at least two different types of fluid jet, and / or a control element 153 for activating a fluid delivery.
- the hose attachment 150 is designed in the manner of a handgun, wherein the housing 152 is designed pistol-shaped.
- the design of the hose attachment 150 in the manner of a handgun has merely exemplary character and is not to be regarded as limiting the invention.
- the hose attachment 150 may also have a tubular housing 152 and / or be designed as a cleaning syringe. It should be noted that such a cleaning syringe preferably directly on a preferably designed as a garden hose hose
- an application with a cleaning syringe does not necessarily require a pressure generating device 100 for pressurizing the fluid.
- the device 160 is preferably for dispensing the preferably of the
- the device 160 is designed for setting at least two different types of fluid jet, wherein the device 160 preferably has a nozzle head and / or nozzle selection head or is designed accordingly.
- the device 160 has at least one nozzle, preferably and in particular at least two different nozzles (162, 164, 168 in FIG. 2), for the selective delivery of at least two different fluid jet types.
- the device 160 is in particular provided with at least two different nozzles (162, 164, 168 in FIG. 2), each of the at least two different nozzles (162, 164, 168 in FIG. 2) being associated with one of the at least two different fluid jet types .
- the different types of fluid jet are formed as fan beam, spot beam and / or shot. However, other types of fluid can also be used
- a free-flow jet i. a substantially uncontrolled fluid jet which exits the hose attachment 150 in the manner of a shower jet or jet of rain at comparatively little pressure
- a combined fluid jet mode which may preferably be composed of at least two types of fluid jet, i. e.g. radially outside a spray jet and radially inside a spot beam.
- An adjustment of a selected Fluidstrahlart preferably takes place by a rotation, in particular a rotation of the device 160 and the
- a nozzle assigned to the selected fluid jet type is preferably arranged at a fluid outlet opening (170 in FIG. 2), whereby a fluid admission of the selected nozzle takes place.
- a nozzle may also be formed to form at least two different types of fluid jet, the nozzle being e.g. is formed as a baffle plate and adjusting the at least two different fluid jet types are adjustable by adjusting a distance of the baffle plate to a fluid outlet.
- a nozzle is preferably used in a cleaning syringe described above.
- FIG. 2 shows the preferably designed as a handgun hose attachment 150 of Fig. 1, which is hereinafter referred to as a handgun 150 for the sake of simplicity of the description.
- FIG. 2 illustrates the device 160, which is preferably designed as a nozzle head, for setting different fluid jet types.
- FIG. 2 illustrates a fluid outlet 170 of the handgun 150, which is preferably arranged in a 12 o'clock position of the nozzle head 160. It should be noted, however, that the fluid outlet 170 may also be arranged in any other position of the nozzle head 160.
- Fig. 2 illustrates the nozzle head 160 with preferably at least two, illustratively four nozzles 162, 164, 166, 168.
- the nozzle 162 is preferably designed to form a cone jet
- the nozzle 164 is designed to form a spray jet
- the nozzle 166 is for forming a free-flow stream, ie, for example, a shower jet
- the nozzle 168 is for
- nozzles can also be used for the formation of further fluid jet types.
- the design of the nozzle head 160 with the illustratively four nozzles 162, 164, 166, 168 is merely exemplary in nature and should not be taken as limiting the invention.
- the nozzle head 160 may also have fewer or more than the four nozzles 162, 164, 166, 168.
- the arrangement of the preferably four nozzles 162, 164, 166, 168 is also illustrative and not limiting of the invention.
- the nozzles 162, 164, 166, 168 in any other orders or arrangements in the circumferential direction of the
- Nozzle head 160 may be arranged.
- a setting of a desired Fluidstrahlart carried out by a rotation, in particular a rotation of the nozzle head 160 relative to the handgun 150. It should be noted, however, that a rotation of the nozzle head 160 relative to the handgun 150.
- FIG. 3 shows the pressure cleaning device 100 of FIG. 1 and illustrates the pressure generating unit 120, which preferably has a motor 310 and a pump 210 and a control device 240 has.
- the motor 310 is designed as an electric motor, wherein preferably a power supply of the pressure generating unit 120 takes place wirelessly via a battery pack 320.
- the pressure generating unit 120 may also have a network-dependent power supply.
- the pump 210 preferably has a pump inlet 212, via which the fluid is transported to the pump 210, and a pump outlet 214, via which the pressurized fluid leaves the pump 210. It is the
- Pump output 214 connected to the coupling element 124. Furthermore is preferably at the pump outlet 214 at least and preferably a measuring unit 220 at least arranged to determine a respective current operating pressure of the pressure generating unit 120.
- the measuring unit 220 is arranged at the pump outlet 214, but can also be arranged in the hose 140 and / or in the manual gun 150. In this case, in the case of an arrangement of the measuring unit 220 in the handgun 150, a wired connection and / or a radio connection for communication with the control device 240 can take place.
- the at least one measuring unit 220 is designed in the manner of a pressure sensor, particularly preferably in the manner of an electrical pressure sensor, and / or in the manner of a flow rate sensor.
- the electrical pressure sensor for determining a respective current operating pressure and / or the flow rate sensor for determining a respective current flow rate or a respective current flow rate is provided.
- the control device 240 is designed to control the pressure generating unit 120 in particular on the basis of a respectively set operating mode as a function of a respective currently determined operating pressure and / or a respective current determined flow rate or the currently determined volume flow.
- the measuring unit 220 is designed for electrical measurement of the operating pressure and / or the flow rate. A pressure measurement by means of a spring-loaded pressure control valve is excluded according to the invention.
- the pressure-cleaning device 100 according to the invention is designed without a bypass.
- the pressure generation unit 120 is operable in at least two different modes of operation.
- the control unit 1 18 is adapted to allow adjustment of at least two different operating modes.
- the operating modes may be configured as preset modes to which e.g. different operating pressures are associated, e.g. a soft mode with a low operating pressure, a medium mode with a medium operating pressure and / or a turbo mode with a high operating pressure.
- an operating pressure setting can be regarded as operating mode.
- an alternative or optional operating mode can be provided, which can preferably be in the form of an automatic mode, wherein an operating pressure setting can automatically take place preferably depending on a respective used and detectable hose attachment 150.
- the operating unit 1 18 is adapted to a setting of a maximum operating pressure (Pmax in Fig. 6) of the pressure generating unit 120, in which the pressure generating unit 120 is deactivated, and / or a minimum
- the control device 240 is preferably designed to control, preferably to switch on and / or off, the printer generating unit 120 on the basis of a respective set maximum and / or minimum operating pressure (Pmax, Pmin in FIG. 6), in particular as a function of a respectively set drive parameter ,
- the at least one controllable drive parameter is preferably a rotational speed of the electric motor 310.
- the control device 240 is preferably designed to control the rotational speed of the motor 310.
- a separate maximum operating pressure (Pmax in FIG. 6) is assigned to each of the at least two different operating modes and / or a predetermined rotational speed of the motor 310 is assigned to the respective operating mode.
- the control device 240 is preferably designed to control the motor 310.
- the control device 240 is configured to prevent exceeding the respective separate maximum operating pressure (Pmax in FIG. 6).
- a separate minimum operating pressure (Pmin in FIG. 6) and / or a switch-on pressure (Pein in FIG. 10) are preferably assigned to each of the at least two different operating modes.
- the control device 240 is preferably designed to prevent falling below the respective separate minimum operating pressure (Pmin in FIG.
- the controller 240 prevents exceeding of the respective separate maximum operating pressure (Pmax in FIG. 6) by deactivating the pressure generating unit 120 and / or activates at least the pressure generation when the respective separate minimum operating pressure (Pmin in FIG. 6) and the cut-in pressure (Pein in FIG - unit 120.
- the control device 240 is designed to set a maximum and / or minimum operating pressure (Pmax, Pmin in FIG. 11) as a function of a respectively current operating pressure and / or an operating pressure curve and / or a current flow rate or flow rate. to adjust the genverlaufskurve.
- the maximum and / or minimum operating pressure (Pmax, Pmin) by a predetermined percentage or predetermined absolute pressure is greater or less than the currently determined operating pressure.
- the maximum and / or minimum operating pressure (Pmax, Pmin) 3bar is greater or less than the currently determined operating pressure.
- the control device 240 is designed to detect a hose attachment 150 or a fluid jet used, depending on a respectively current operating pressure and / or an operating pressure curve and / or a current flow rate or flow rate curve.
- the control device 240 is preferably designed to store and / or output at least one piece of information about the currently used hose attachment 150 or the fluid jet type used.
- An output can, for example, be sent to a mobile terminal, e.g. a smartphone and / or a tablet, or at another man-machine interface. In this case, such an output may output the corresponding information preferably tactually and / or acoustically.
- the information can also be stored and / or output for "condition monitoring".
- the at least two different fluid jet types are each assigned separate maximum operating pressures which are dependent on a respective set operating mode.
- the control device 240 is preferred way designed to detect a current Fluidstrahl- type or nozzle position of the handgun 150 based on the detected by the preferred electrical pressure sensor 220 pressure curve (510 in Fig. 6).
- an automatic determination of a maximum and / or minimum switch-on operating pressure can be set via the determined pressure curve (510 in FIG. 6).
- control device 240 is alternatively or optionally designed to derive a state of the pressure-cleaning device 100 and / or condition monitoring as a function of a current operating pressure and / or an operating pressure curve and / or a current flow rate or flow rate curve or a volume flow profile the pressure cleaning device 100 perform.
- a condition monitoring may include, for example, recognition of a degree of calcification of the nozzle. This can preferably be detected by means of a rapid pressure drop during a closing operation of the nozzle or the fluid outlet.
- a condition monitoring may also include, for example, a detection of a leak, for example due to an excessively high pressure or an excessively low volume flow.
- control device 240 is designed to deactivate the pressure generating unit 120 when a predetermined dry-running operating pressure occurs, which in particular signals an empty storage tank 116 and / or a kink in the hose 140 and / or a fluid supply hose.
- control device 240 is alternatively or optionally configured to switch off the pressure-cleaning device 100 after a predetermined period of time without actuating the hose attachment 150 and / or without falling below the engagement pressure (Pein in FIG. 10). Switching off after a period of 10 minutes preferably takes place. It should be understood, however, that the ten minute period is merely exemplary in nature and should not be construed as limiting the invention. So can a shutdown even after a period of less than 10 minutes or more than 10 minutes. In addition, it may also be possible to set the time duration via the operating unit 118.
- FIG. 4 shows the pressure cleaning device 100 of FIGS. 1 and 3 and illustrates a preferred construction. In this case, FIG.
- the control device 240 which is preferably connected to the measuring unit arranged at the pump outlet 214 and designed as an electrical pressure sensor 220 and connected to the motor 310, which is preferably designed as an electric motor. Furthermore, the control device 240 is connected to the power supply, which is preferably designed as a battery pack 320.
- the battery pack 320 is provided at least for the power supply of the pressure generating unit 120, the electrical pressure sensor 220 and the control device 240.
- the battery pack 320 is preferably designed to provide an operating voltage of 18V and preferably as a lithium-ion battery pack, preferably at least a 70 minute operation in soft mode, a 30 minute operation in medium mode and / or a 15 minute operation in the turbo Mode is enabled.
- a charging process of the battery pack 320 can preferably take place in 100 minutes.
- control device 240 is preferably connected to the control unit 1 18, wherein the control unit 1 18 at least the input unit 1 17 for setting an operating mode, a rotational speed, an operating pressure, etc., and the on / off control element 1 19 are assigned.
- control unit 118 is also associated with a display unit 332, which may be e.g. can display a set operating mode and / or a battery pack state.
- FIG. 5 shows the pressure-cleaning device 100 of FIG. 1 and FIG. 3 or FIG. 4 with an additional safety circuit 418, which is preferably designed for the occurrence of an error or detection of a faulty signal by a microcontroller 416 assigned to the control device 240 To control the pump 210 and the motor 310 such that damage or destruction of the pressure cleaning device 100 or a risk to a corresponding user can be at least substantially excluded.
- the security circuit 418 is parallel to the microcontroller 416 of
- Control device 240 is arranged. This allows safe operation of the printing Cleaning device 100 are made possible, so that in particular an exceeding of the maximum operating pressure can be safely and reliably prevented.
- the control device 240 is arranged with its microcontroller 416 on a circuit board.
- FIG. 6 shows a general and simplified diagram 500 of an exemplary operating pressure curve 510 of the pressure cleaning device 100 of FIG. 1 and FIGS. 3 to 5.
- a time t in seconds is plotted on an abscissa 502 and an operating pressure P is in bar plotted on an ordinate 504.
- a section 51 1 of the operating pressure curve 510 formed between a point in time T0 and T1 illustrates an initial pressure build-up in which the operating pressure is preferably built up from 0 to approximately a maximum operating pressure Pmax.
- the pressure generating unit 120 Upon reaching the maximum operating pressure Pmax, the pressure generating unit 120 is turned off and a respective set nozzle 162, 164, 168 can be opened by actuating the operating element 153 of the handgun 150 to activate a fluid delivery.
- the operating pressure P falls by way of example in section 512, or between the time T1 and T2, to a minimum operating pressure Pmin.
- the pressure generating unit 120 is preferably activated so that it builds up the operating pressure to a set operating pressure P.
- the formed between the time T2 and T3 section 513 illustrates a corresponding pressure build-up to the set operating pressure P. If the set operating pressure P is reached, this is maintained, as illustrated in a section 514.
- the respectively set nozzle 162, 164, 168 is closed or a fluid discharge is ended, so that the operating pressure P increases due to the still pressurized pressure generating unit 120.
- the respective sections 51 1 - 515 of the operating pressure curve 510 are formed linearly, but this is not to be seen as limiting the invention.
- the sections 51 1 -515 may also have an arbitrarily different course, e.g. an exponential increase and / or decrease in operating pressure.
- an operating pressure P is via the operating unit
- the operating pressure P in each case a preferably predetermined maximum and / or minimum operating pressure Pmax, Pmin is assigned.
- the control device 240 is preferably designed to prevent the respective separate maximum operating pressure Pmax from being exceeded.
- the control device 240 preferably prevents exceeding the respective separate maximum operating pressure Pmax by deactivating the pressure generating unit 120. If the respective separate minimum operating pressure Pmin is not reached, the pressure generating unit 120 is preferably activated.
- the maximum and / or minimum operating pressure Pmax, Pmin is a predetermined percentage or predetermined absolute pressure greater or less than the adjustable operating pressure P.
- the absolute pressure is preferably 3bar, i. the maximum operating pressure Pmax is preferably 3bar greater than the set operating pressure P, and the minimum operating pressure Pmin is preferably 3bar lower than the set operating pressure P.
- the predetermined percentage or predetermined absolute pressure may also be adjusted, e.g. in case of wear and / or a leak. These values should be ideally chosen to save energy. However, the values should not be too close to each other, since otherwise many Nachberichtintervalle may arise. Likewise, the values should not be too far apart, as this too would increase the energy consumption required.
- the maximum and / or minimum operating pressure Pmax, Pmin can also be set manually via the input unit 1 17 of the operating unit 1 18.
- the present invention describes a method for operating the pressure cleaning device 100 with the pressure generating unit 120 for pressurizing the fluid and for delivering a pressurized fluid via the hose attachment 150, preferably via a handgun or via a cleaning syringe.
- the pressure cleaning device 100 is preferably operable in at least two different operating modes. In this case, a respective current operating pressure P and / or via a flow rate sensor, a respective current flow rate or a flow rate V is determined via the preferred electrical pressure sensor 220.
- the pressure cleaning device 100 is controlled in particular on the basis of the respectively set operating mode (710 in Fig. 7) in response to a respectively current detected operating pressure and / or a respective current determined flow rate from the control device 240.
- an operating mode can also be set directly, the operating mode being assigned a corresponding operating pressure, which is set automatically.
- an operating pressure P can also be assigned a rotational speed which can be set via the input unit 17.
- FIG. 7 shows an exemplary operating mode operating pressure table 700 of the pressure cleaning apparatus 100 of FIG. 1 and FIGS. 3 to 5.
- the illustrative left column illustrates a respective operating mode 710, e.g. the operating modes described above with a first operating mode 1 or a software
- the first operating mode 1 or the soft mode has an operating pressure P of 4 bar and a maximum operating pressure Pmax of 7 bar and a minimum operating pressure Pmin of 1 bar.
- Medium mode exemplifies an operating pressure P of 8bar and a maximum operating pressure Pmax of 1 1 bar and a minimum operating pressure Pmin of 5bar.
- the third operating mode 3 or the turbo mode has, for example, an operating pressure P of 12 bar and a maximum operating pressure Pmax of 15 bar and a minimum operating pressure Pmin of 9 bar.
- the illustrated operating pressures are merely exemplary and should not be taken as limiting the invention. Thus, the respective operating pressures can also have different values.
- FIG. 8 shows an example operating mode operating pressure table 800 of FIG. 8
- Pressure cleaning device 100 of Fig. 1 and Fig. 3 to Fig. 5, wherein the operating pressures P and associated volume flows V are shown in dependence on a respective operating mode 710 and each set Fluidstrahlart.
- the nozzle 162 of FIG. 2 which is designed to form the conical jet, is assigned an operating pressure P of 4 bar and a volume flow V of 1, 51 / min in the first operating mode or the soft mode. in the second operating mode or the medium mode, an operating pressure P of 8 bar and a volumetric flow V of 2.31 / min, and in the third operating mode or the turbo mode, an operating pressure P of 12 bar and a volumetric flow V of 2.7 l / min ,
- the nozzle 168 of FIG. 2, which is designed to form the fan beam is preferably assigned the same values as the cone beam nozzle.
- Nozzle 162 The nozzle 164 of FIG. 2, which is designed to form the spray jet, is preferably assigned an operating pressure P of 3 bar and a volume flow V of 2 l / min in the first operating mode or the soft mode, in the second operating mode or in the second operating mode. the medium mode, an operating pressure P of 6.5 bar and a flow rate V of 2.71 / min and in the third operating mode or
- the nozzle 166 which is designed to form the free-flow jet, is preferably assigned an operating pressure P of 1 bar and a volume flow V of 2.5 l / min in the first operating mode or the soft mode, in the second operating mode or the medium Mode operating pressure P of 2bar and a volumetric flow V of 3.51 / min and in the third operating mode or the turbo mode an operating pressure P of 3bar and a volumetric flow V of 4.51 / min.
- the illustrated operating pressures P and V have only exemplary character and are not to be construed as limiting the invention.
- the respective operating pressures P and volume flows V can also have other values.
- FIG. 9 shows a diagram 900 with an exemplary operating pressure curve 910 of the pressure cleaning device 100 of FIG. 1 and FIGS. 3 to 5.
- the operating pressure curve 910 illustrates a detection of a respective nozzle assigned to a fluid jet type or a setting of one Fluidstrahlart and a mode change.
- a time t in seconds is plotted on an abscissa 902 and an operating pressure P is plotted in bar on an ordinate 904.
- a section 91 1 of the operating pressure curve 910 formed between a point in time T0 and T1 illustrates an initial pressure build-up in the medium mode or the operating mode 2, in which the operating pressure is preferably built up from 0 to illustratively to a maximum operating pressure P max.
- the pressure generating unit 120 Upon reaching the maximum operating pressure P1 max, the pressure generating unit 120 is turned off. In section 912, the maximum operating pressure P1 max until it drops to a minimum operating pressure Pi rmin when the fluid outlet is opened at time T2 according to an exemplary section 913.
- the pressure generating unit 120 is activated and the operating pressure P is built in a section 914 until the operating pressure P1 is reached at a time T4.
- control device 240 preferably recognizes, via a pitch assigned to the section 914, a respective set flow type and preferably builds up an operating pressure P1 assigned to the set fluid jet type.
- Section 915 shows an operation of the set fluid jet type at its associated operating pressure P1.
- Control device 240 the pressure generating unit 120 is deactivated at time T6.
- the operating pressure illustratively the maximum operating pressure P1 max, preferably maintained.
- the formed between the time T7 and T8 section 918 illustrates a pause in operation of the pressure cleaning device 100th
- an operating mode change into the operating mode 3 or the turbo mode takes place by way of example.
- the operating pressure P in the section T9 after activating the pressure generating unit 120 increases to a maximum operating pressure P2max assigned to the operating mode.
- the pressure generating unit 120 is deactivated analogously to the time T2 and the maximum operating pressure P2max is preferably maintained in the section 920.
- the fluid outlet is opened and the operating pressure P drops in section 921 to the minimum operating pressure P2min associated with the operating mode.
- the pressure generating unit 120 is reactivated and builds in section 922 the associated operating pressure P2, which is illustratively reached from the time T12.
- an operation or fluid delivery occurs until at time T13 the fluid delivery is deactivated causing the operating pressure P in section 924 to the maximum operating pressure P2max increases and the controller 240 illustratively deactivates the pressure generating unit 120 at time T14.
- FIG. 10 shows a diagram 1000 with an exemplary operating pressure curve 1010 of the pressure-cleaning device 100 of FIG. 1 and FIGS. 3 to 5.
- the operating pressure curve 1010 illustrates a detection of a nozzle change.
- a time t in seconds is plotted on an abscissa 1002 and an operating pressure P is plotted in bar on an ordinate 1004.
- a section 101 1 of the operating pressure curve 1010 formed between times TO and T1 illustrates an initial pressure build-up in which the operating pressure is preferably built up from 0 to illustratively to a maximum operating pressure P1 max.
- the pressure generating unit 120 is turned off.
- the maximum operating pressure P1 max is maintained, and here by way of example the free-flow jet nozzle 166 of FIG. 2 is set.
- the operating pressure P drops to a switch-on pressure Pein.
- the cut-in pressure Pein at time T3
- at least the pressure generating unit 120 is activated.
- the operating pressure P in section 1014 or between the times T3 and T4, continues to drop to a minimum operating pressure Pi rmin, which forms the operating pressure P1.
- the operating pressure P1 is below the cut-in pressure Pein.
- section 1015 operation of the free flow jet nozzle 166 occurs.
- the nozzle 166 is closed and the operating pressure P increases to an exemplary maximum operating pressure P2max at which the pressure generating unit 120 is deactivated.
- a nozzle change takes place on the spray jet nozzle 164 of FIG.
- the operating pressure in section 1018 drops to an associated minimum operating pressure P2min, thereby activating the pressure generating unit 120.
- the minimum operating pressure P2min due to the volume flow V of the spray nozzle 164 from the operating pressure P2.
- the operating pressure P falls in section 1022 to an associated minimum operating pressure P3min, whereby the pressure generating unit 120 is activated.
- the operating pressure P in section 1023 increases to an associated operating pressure P3, wherein in section 1024 an operation of the adjusted nozzle 162, 168 takes place.
- the fluid outlet is closed and the operating pressure P rises from the associated maximum operating pressure P3max and the pressure generating unit 120 is deactivated again.
- FIG. 1 1 shows a diagram 1 100 with an exemplary operating pressure curve 1 1 10 and an exemplary volumetric flow curve 1 140 of the pressure cleaning device 100 of FIG. 1 and FIGS. 3 to 5, wherein the volume flow V equals a flow rate curve.
- the operating pressure curve 1 1 10 illustrates a detection of a nozzle change and an adjustment of a maximum and minimum operating pressure.
- a time t in seconds is plotted on an abscissa 1 102 and an operating pressure P in bar and a volume flow V in l / min are plotted on an ordinate 104.
- the pressure generating unit 120 is turned off.
- the maximum operating pressure P1max is maintained, and here by way of example the free-flow jet nozzle 166 of FIG. 2 is set.
- the operating pressure P drops to a minimum operating pressure Pi rmin or a switch-on pressure Pein.
- the cut-in pressure Pein at the time T3 is at least the
- Pressure generating unit 120 activated.
- control device 240 recognizes which of the nozzles 162, 164, 166, 168 of FIG. 2 is being used and thus preferably automatically adjusts the maximum and minimum operating pressures Pmax, Pmin.
- the free-flow jet nozzle 166 or the fluid outlet is opened at the time T7, the operating pressure in the section 1118 falls to a new or adjusted minimum operating pressure P1minewhen the pressure-generating unit 120 is activated.
- the minimum operating pressure P1 is newly designed as a switch-on pressure Pein.
- the operating pressure P continues to drop to the operating pressure P1 due to the comparatively high volumetric flow V of the free-flow jet nozzle 166 in the section 11, 19 or between the times T8 and T9.
- an operation of the free-flow jet nozzle 166 takes place.
- the fluid outlet is closed and the operating pressure P increases to the maximum operating pressure P1 maxewhen the pressure generating unit 120 is deactivated.
- section 1 122 then takes place a nozzle change.
- the operating pressure P drops to the minimum operating pressure P1minew and the pressure generating unit 120 is activated again when the minimum operating pressure P1 is reached.
- the operating pressure P rises to a new operating pressure P2, wherein the control device 240, as described above, by the slope of the section 1 124 detects the nozzle used, for example by correlation and thus an associated maximum and / or minimum operating pressure P2max, P2min determined.
- the new nozzle is operated, illustratively and by way of example, the spray jet nozzle 164 of FIG. 2 and the new fluid jet type, respectively.
- the fluid outlet is closed at time T15 and the operating pressure P increases to a maximum operating pressure P2max associated with the nozzle 164 at which the pressure generating unit 120 is deactivated.
- no operation of the spray nozzle 164 takes place.
- the fluid outlet is opened and the operating pressure P drops in section 1 128 to a minimum operating pressure P2min associated with the nozzle 164.
- the pressure generating unit 120 Upon reaching the minimum operating pressure P2min or at the time T18, the pressure generating unit 120 is reactivated and the operating pressure P increases in section 1 129 to the operating pressure P2 associated with the nozzle 164. In this case, an operation takes place in section 1 130, which is deactivated at time T20, the operating pressure P rising again.
- FIG. 1 1 illustrates the volume flow profile 1 140 of the pressure-cleaning device 100 of FIG. 1 and FIGS. 3 to 5 associated with the operating pressure profile 1 1 10.
- a volume flow V in a section 1 141 constructed.
- the volume flow V has its maximum volume flow V1 assigned to the nozzle 166.
- the volume flow V falls back to 0, where this remains until the time T7, or in the section 1 144, too.
- the present invention describes a method for detecting the hose attachment, in particular a fluid jet type, of a hose attachment of the pressure cleaning device 100 of FIG. 1 and FIGS. 3 to 5 with the pressure generating unit 120 for pressurizing a fluid.
- the preferably electrical pressure sensor 220 determines a respectively current operating pressure P and / or a flow rate sensor determines a respective current flow rate or a volume flow V.
- the control device 240 then generates on the basis of the determined operating pressure P and / or the determined flow rate or the determined flow rate Volume flow V is the operating pressure curve 1 1 10 or flow rate curve or the volume flow curve 1 140.
- the controller 240 preferably correlates the detected operating pressure curve 1 1 10 and / or flow rate curve or the volume flow curve 1 140 for detecting the hose attachment 150 or the Fluidstrahlart stored operating pressure curves or flow rate curves, in particular to set an operating mode of the pressure generating unit.
- control device 240 controls the pressure generating unit 120 in the figures shown depending on the operating pressure P, but this should not be seen as limiting the invention.
- control device 240 can also control the pressure-generating unit as a function of the volume flow V or a flow rate equal to the flow rate V.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102017206500.1A DE102017206500A1 (de) | 2017-04-18 | 2017-04-18 | Druckreinigungsvorrichtung mit einer Druckerzeugungseinheit |
PCT/EP2018/059410 WO2018192836A1 (de) | 2017-04-18 | 2018-04-12 | Druckreinigungsvorrichtung, verfahren zum betreiben einer druckreinigungsvorrichtung und verfahren zum erkennen eines schlauchvorsatzes |
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EP3612320A1 true EP3612320A1 (de) | 2020-02-26 |
EP3612320B1 EP3612320B1 (de) | 2022-12-28 |
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EP (1) | EP3612320B1 (de) |
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DE (2) | DE102017206500A1 (de) |
WO (1) | WO2018192836A1 (de) |
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AU2019459673A1 (en) * | 2019-07-31 | 2022-03-24 | Alfred Kärcher SE & Co. KG | High-pressure cleaning system and method for operating a high-pressure cleaning system |
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US20230415205A1 (en) * | 2022-06-24 | 2023-12-28 | Honda Motor Co., Ltd. | Motor disposed below pressure pump |
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-
2017
- 2017-04-18 DE DE102017206500.1A patent/DE102017206500A1/de active Pending
-
2018
- 2018-04-12 DE DE202018006446.7U patent/DE202018006446U1/de active Active
- 2018-04-12 EP EP18717909.8A patent/EP3612320B1/de active Active
- 2018-04-12 CN CN201880026058.XA patent/CN110536757B/zh active Active
- 2018-04-12 US US16/603,721 patent/US11779947B2/en active Active
- 2018-04-12 WO PCT/EP2018/059410 patent/WO2018192836A1/de unknown
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CN110536757B (zh) | 2022-03-18 |
US20210283636A1 (en) | 2021-09-16 |
DE202018006446U1 (de) | 2020-09-22 |
WO2018192836A1 (de) | 2018-10-25 |
CN110536757A (zh) | 2019-12-03 |
US11779947B2 (en) | 2023-10-10 |
EP3612320B1 (de) | 2022-12-28 |
DE102017206500A1 (de) | 2018-10-18 |
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