EP3271121A1 - Device and method for cutting a good to be cut by means of a fluid - Google Patents
Device and method for cutting a good to be cut by means of a fluidInfo
- Publication number
- EP3271121A1 EP3271121A1 EP16701462.0A EP16701462A EP3271121A1 EP 3271121 A1 EP3271121 A1 EP 3271121A1 EP 16701462 A EP16701462 A EP 16701462A EP 3271121 A1 EP3271121 A1 EP 3271121A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- fluid line
- operating mode
- fluid
- switching valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 142
- 238000005520 cutting process Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims description 25
- 230000010349 pulsation Effects 0.000 claims abstract description 85
- 239000000463 material Substances 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000003082 abrasive agent Substances 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 10
- 230000007704 transition Effects 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 abstract description 7
- 239000011521 glass Substances 0.000 description 11
- 230000008901 benefit Effects 0.000 description 8
- 239000011152 fibreglass Substances 0.000 description 6
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 5
- 101100008046 Caenorhabditis elegans cut-2 gene Proteins 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002223 garnet Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
- B24C7/0015—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
- B24C7/0023—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
- B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
Definitions
- the invention relates to a device for cutting a material to be cut with the aid of a fluid, in particular for water jet cutting, wherein the device a
- Pressure generating unit and an outlet nozzle in fluid communication with the pressure generating unit via a fluid line, the pressure generating unit being provided for pressurizing the fluid in the fluid line and the device further comprising a pulsation damper for damping pressure fluctuations in the fluid line.
- Such waterjet cutting devices are well known in the art.
- the water is set by means of the pressure generating unit under a high pressure of up to 7,000 bar and conveyed through an outlet nozzle.
- the water accelerates to high speeds, so that a water jet is formed, with which the cutting material is acted upon for cutting the same.
- an abrasive material such as fine garnet sand is added to the water jet. It is known that waterjet cutting offers a number of technical advantages over other cutting methods, such as laser cutting or sawing, such as cutting without
- a particularly important advantage of water jet cutting is that the water jet is its own
- Initial drilling in the cutting material, from which the cut material is cut can produce itself.
- the production of this initial opening is also referred to as "piercing" of the material to be cut
- controllable pressure generating units are typically used which comprise at least two different types
- Water pressure is typically subject to pulsation, i. a small temporal
- the object of the present invention is achieved by a device for cutting a material to be cut by means of a fluid, in particular for water jet cutting, wherein the device comprises a pressure generating unit and an outlet nozzle in fluid communication with the pressure generating unit via a fluid line, wherein the
- a pressure generating unit is provided for pressurizing the fluid in the fluid line, and wherein the device further comprises a pulsation damper for damping
- the device has at least one switching valve such that the pulsation damper depending on the switching position of the
- Switching valve can be coupled to the fluid line and can be decoupled from the fluid line.
- the device according to the invention has the advantage over the prior art that a fast switching between different pressures is made possible, so that, in particular, a quick change between piercing and cutting of glass slices,
- Pulsation damper is not firmly integrated into the fluid line as in the prior art, but can be decoupled via the switching valve either or temporarily from the fluid line. If, for example, a cut in the material to be cut, which is carried out with a high working pressure, has been completed and the item to be cut is "pierced" at a new location, the pulsation damper is decoupled from the fluid line and the
- Pressure generating unit downshifted or regulated to the lower working pressure.
- the fluid line then relaxes through the open discharge nozzle and the lower working pressure in the fluid line is available almost immediately. In particular, it is not necessary to first wait for the complete pressure reduction in the pulsation damper.
- the pressure generating unit is switched up or regulated to the high working pressure and the pulsation damper is switched on. In this way, the high working pressure is available very quickly and it does not have to be slow
- the device according to the invention thus enables a faster switching between different pressures. At the same time a clean cutting of cutting material is possible in a known manner, since the device is still a pulsation damper for damping the pressure pulsation in the
- the pulsation damper is not constantly subjected to different working pressures and thus sees significantly fewer load cycles, whereby the life of the pulsation damper is significantly increased.
- the fluid comprises in particular water.
- the material to be cut preferably comprises glass, glass fiber reinforced plastic, carbon fiber reinforced plastic, ceramics, natural stone and other materials with similar behavior.
- the pulsation damper is also referred to as a buffer volume and typically has a volume of 2 to 5 liters.
- the pressure generating unit is a pressure generating unit with controllable output pressure, which is operable at least in a first operating mode with a first working pressure and in a second operating mode with a second working pressure, wherein the first
- Working pressure is greater than the second working pressure.
- the device is between a first operating mode provided for cutting the material to be cut, in which the pressure generating unit provides the first working pressure and the pulsation damper is coupled to the fluid line by means of the switching valve, and a second operating mode intended for initial perforation of the material to be cut (also referred to as "piercing") in which It has turned out, completely surprisingly and unpredictably, that the piercing of items to be cut, such as glass, glass fiber reinforced plastic and carbon fiber reinforced plastic
- the first working pressure preferably comprises a pressure between 2,000 and 6,000 bar, more preferably between 3,000 and 4,000 bar, while the second working pressure preferably comprises a pressure between 400 and 900 bar, more preferably between 600 and 800 bar.
- the pressure generating unit comprises a pressure booster and / or a high pressure pump, in particular a hydraulically driven high pressure pump, an electromechanically driven high pressure pump or a high pressure pump with crank mechanism.
- the pressure generating unit comprises a hydraulic unit that drives a double-acting pressure booster, which operates in an oscillating operation to convert the pressure generated by a backing pump to high pressure of 2,000 to 6,000 bar or 400 to 900 bar.
- the pressure fluctuations in the fluid line, which arise due to the oscillating operation of the pressure booster, are attenuated or compensated by the pulsation damper, at least in the first operating mode.
- the pulsation damper comprises for this purpose in particular a pressure storage chamber.
- the device has a switchable expansion valve, which is on the input side in fluid communication with the fluid line and the output side in particular is at ambient pressure.
- a switchable expansion valve which is on the input side in fluid communication with the fluid line and the output side in particular is at ambient pressure.
- Pressure control unit to control down accordingly and decouple the pulsation damper from the fluid line, but also additionally to open the expansion valve for a short time.
- the opening of the expansion valve ensures that the pressure in the fluid line drops even faster from the first working pressure to the second working pressure. As a result, the switching time can be reduced, for example, to 0.3 seconds.
- the emergency valve which is provided anyway in high pressure systems, used or be connected accordingly.
- the device has a mixing chamber for adding abrasive material to the fluid, wherein the mixing chamber is arranged along the main flow direction of the fluid behind the outlet nozzle and wherein the mixing chamber with a reservoir for
- Abrasive material is in communication.
- the outlet nozzle acts as a Venturi nozzle, whereby the abrasive material is automatically sucked into the water jet by negative pressure.
- the admixture of abrasive materials such as quartz sand, corundum, garnet or the like, has the advantage over the pure water cutting that the cutting performance is increased and thus harder materials can be cut.
- the pulsation damper comprises a closed pressure storage chamber, which has only a single access opening, wherein the one access opening is connected via the switching valve to the fluid line.
- the switching valve to the fluid line.
- Switching valves are subject to a relatively high wear.
- a single access opening in the sense of the present invention means in particular that only a single non-permanently closed opening, which in fluid communication with the
- Fluid line is, is provided.
- the pulsation damper comprises a closed pressure accumulator chamber which can be switched in parallel with the fluid line and has two access openings, wherein the one access opening is via the one switching valve can be coupled to the fluid line and can be decoupled from the fluid line and wherein the other access opening can be coupled via a further switching valve to the fluid line and can be decoupled from the fluid line.
- the fluid advantageously flows through the Pulsationsdampfer, so that a better damping effect can be achieved.
- the device comprises a further pulsation damper, which can be coupled via at least one further switching valve to the fluid line and can be decoupled from the fluid line.
- the further pulsation damper (in particular exclusively) is coupled to the fluid line in the second operating mode. In this way, the pressure fluctuations, which can no longer be compensated by the disconnected pulsation damper in the second operating mode, are damped by the further pulsation damper. It is conceivable that the pulsation dampers are different in size.
- Another object of the present invention is a method for cutting a material to be cut by means of a fluid, in particular for water jet cutting, wherein a fluid is pressurized by means of a pressure generating unit, wherein the pressurized fluid is passed through a fluid conduit to an outlet nozzle and wherein the Cutting material is acted upon by the emerging from the outlet nozzle fluid, characterized in that the method optionally in a first operating mode, in which a pulsation damper is coupled by means of a switching valve to the fluid line, and a second
- the method according to the invention also permits a substantially faster changeover between the first and the second operating mode compared to the prior art, since in the second operating mode the pulsation damper is decoupled from the fluid line. In this way, in particular a switching between cutting and piercing when processing glass, glass fiber reinforced plastic and carbon fiber reinforced plastic is accelerated.
- the second operating mode is preferably used for the initial perforation of the material to be cut, while the first operating mode is used for the subsequent cutting of the material to be cut.
- Another advantage is that the pulsation damper is not constantly subjected to different working pressures and thus sees significantly fewer load cycles, whereby the life of the pulsation damper is significantly increased.
- a first working pressure is provided by the pressure generating unit and in the second operating mode, a second working pressure is provided by the pressure generating unit, wherein the first working pressure is greater than the second working pressure.
- the first working pressure preferably comprises a pressure between 2,000 and 6,000 bar, more preferably between 3,000 and 4,000 bar, while the second working pressure preferably comprises a pressure between 400 and 900 bar, more preferably between 600 and 800 bar.
- the switching valve when switching from the first operating mode to the second operating mode, the switching valve is closed and wherein the transition from the second operating mode in the first
- the switching valve is opened. If, for example, a cut in the material to be cut which is carried out with the high first working pressure has been completed and the material to be cut is "pierced" at a new location, the pulsation damper is disconnected from the fluid line and the pressure generating unit is downshifted or regulated to the lower second working pressure Through the open discharge nozzle, the fluid line is depressurized and the lower second working pressure is immediately available in the fluid line, conversely, for example, after piercing the crop with the low second working pressure to the high first working pressure for cutting the material to be pierced When the pressure is increased, the pressure generating unit is switched up to the high first working pressure and the pulsation damper is switched in. In this way, the high working pressure is available very quickly and it is not only the slowly progressing pressure build-up in the Waiting for the pulsation damper. It has been found that switching times of about 1 second and less can be achieved in this way.
- the switching valve is first closed and then the pressure generating unit is controlled such that the pressure in the fluid line drops from the first working pressure to the second working pressure, and / or wherein at the transition from the second operating mode in the first Operation mode, the pressure generating unit is first controlled so that the pressure in the fluid line from the second working pressure to the first working pressure increases, and
- Pressure generating unit and switching the switching valve is achieved that the pressure difference at the switching valve is always kept comparatively low.
- the wear on the switching valve is advantageously counteracted and the longevity and the
- Fluid line in fluid communication standing expansion valve is opened at least temporarily.
- the device when switching the device from the first operating mode (cutting) to the second operating mode (piercing), it is possible not only to downshift the pressure generating unit and the pulsation damper from the fluid line
- the decouple but also additionally to open the expansion valve for a short time.
- the opening of the expansion valve ensures that the pressure in the fluid line drops even faster from the first working pressure to the second working pressure.
- the switching time can be reduced, for example, to 0.3 seconds.
- the emergency valve which is provided anyway in high pressure equipment, used or
- the pulsation damper has two access openings, wherein a switching valve must be switched for each access opening in order to connect or disconnect the pulsation damper.
- the device has a further pulsation damper, which of the fluid line in the second
- Operating mode is switched by means of another switching valve. It is conceivable that the further pulsation damper always performs a damping of the pressure in the fluid line at the lower second working pressure.
- the further pulsation damper is therefore preferably connected to the fluid line exclusively in the second operating mode. This prevails in the Further pulsation damper usually only the lower second working pressure, while in the pulsation damper usually only the higher first working pressure prevails.
- the pulsation damper or the further pulsation damper is then switched on.
- the device has a cutting valve behind the outlet nozzle.
- the cutting valve is kept open in particular, so that a pressure reduction in the fluid line can be done by the cutting valve.
- the switching valve and / or the further switching valve preferably comprises an electromotively actuated valve, an electromagnetically actuated valve, a pneumatically actuated valve or a hydraulically actuated valve.
- FIG. 1 shows a schematic view of an apparatus and a method according to an exemplary first embodiment of the present invention.
- FIG. 2 shows a schematic view of an apparatus and a method according to an exemplary second embodiment of the present invention.
- FIG. 3 shows a schematic view of an apparatus and a method according to an exemplary third embodiment of the present invention.
- Figure 1 is a schematic view of a device 1 and a method for
- the device 1 has a pressure generating unit 3, with which water is pressurized.
- the pressurized water is conducted by means of a fluid line 4 to an outlet nozzle 5.
- the water is due to the large
- a mixing chamber 7 is further formed in which the water with an abrasive material 9, here in the form of a fine-grained quartz sand, is mixed ,
- the mixing chamber 7 is connected to a reservoir 8, in which the abrasive material 9 is kept. Due to the Venturi effect in the region of the outlet nozzle 5, the abrasive material 9 is automatically drawn into the water jet 6 by negative pressure. The staggered with the abrasive material 9
- the cut material 2 comprises a glass.
- An advantage of water jet cutting is that the water jet 6 can generate its own initial bore in the material to be cut 2, from which the material to be cut 2 is cut.
- the production of this initial opening is also referred to as "piercing" of the cut material 2.
- the device 1 is designed for this purpose and is controlled by an electronic control unit 10 such that the device 1 either in a first operating mode, which is provided for cutting the Schneidguts 2, and in a second operating mode, which pierces the Cutting material 2 is provided, is operated
- the pressure generating unit 3 is controlled such that in the fluid line 4, a high first working pressure between 3,000 and 4,000 bar is generated, while in the second Operating mode, the pressure generating unit 3 is controlled such that in the fluid line 4, a lower second working pressure between 600 and 800 bar is generated.
- the device 1 in particular has a cutting valve. Through the open cutting valve, the water jet 6 exits, wherein the water jet 6 is interrupted when closing the cutting valve. In this way, for example, a
- the pressure generating unit comprises a hydraulic unit 1 1, which drives a double-acting pressure booster 12.
- the double-acting pressure booster 12 has in a known manner a piston 13 which operates in an oscillating operation and by means of check valves 14 by a forepump (not shown) to generate pressure generated in the water depending on the operating mode to the first or second working pressure. Due to the oscillating operation of the piston 13, undesirable pressure pulsations arise in the fluid line 4.
- the device 1 has a pulsation damper 15 (also referred to as buffer volume).
- the pulsation damper 15 comprises a pressure storage chamber for this purpose. In the device 1 according to the invention, the pulsation damper 15 is now over
- the switching valve 16 preferably comprises an electromotively actuated valve, an electromagnetically actuated valve, a pneumatically actuated valve or a hydraulically actuated valve which is switched by the control electronics 10 when changing between the first and second operating modes.
- the pulsation damper 15 has only a single access opening 17, via which the interior of the pulsation damper 15 is in fluid communication via the switching valve 16 with the fluid line 5 (only with open switching valve 16).
- the device 1 When the material to be cut 2 is cut, the device 1 is operated in the first operating mode, while the pressure generating unit 3 supplies the first working pressure in the fluid line 4.
- the switching valve 16 is also open, so that the pressure pulsations in the fluid line 4 are damped by the pulsation damper 15 , In the pulsation damper 15 thus also prevails on average also the first working pressure.
- the cutting material 2 must first be pierced at this new location to prepare the water jet 6.
- the device 1 must therefore change from the first operating mode to the second operating mode, so that the first working pressure is reduced to the second working pressure and the material to be cut 2 is not destroyed during piercing.
- the control electronics 10 When switching from the first operating mode to the second operating mode, the control electronics 10 initially closes the switching valve 16. The first working pressure is thus stored in the pulsation damper 15. Subsequently, the pressure generating unit 3 is controlled down or regulated by the control electronics 10, so that relaxation takes place via the cutting valve and not the first working pressure, but instead the lower second working pressure in the fluid line 4 is provided.
- the pressure of the fluid line 4 decreases comparatively quickly to the second working pressure, since not a drop in pressure in the pulsation damper 15 must be waited or the pressure in the pulsation damper 15 initially counteracts the drop in pressure and the volume the fluid line 4 is comparatively small compared to the volume of the pulsation damper 15.
- the change from the first operating state to the second operating state thus takes less than one second.
- the cutting material 2 can now be pierced.
- no pulsation damper 15 is available for damping pressure fluctuations.
- this fact is not critical for the piercing process.
- the emergency valve (not shown), which is provided anyway in each high-pressure circuit, can be opened by the control electronics 10 for a short time (only after the switching valve 16 is closed) ) to accelerate the decrease in the pressure in the fluid line 4.
- the system switches from the second operating mode back into the first operating mode.
- the pressure generating unit 3 is first controlled or regulated by the control electronics 10 such that the pressure in the fluid line 4 increases from the second working pressure to the first working pressure.
- the switching valve 16 is opened. This switching process is much faster than in the prior art, since the increased first working pressure in the Pulsation steamers 15 already exists and does not have to be rebuilt by the pressure generating unit 3.
- the cutting material 2 can now be cut and
- Pulsationsdampfer 15 steamed.
- the switching valve 16 is always connected only when on both sides of the switching valve 16, almost the first working pressure prevails.
- the switching valve 16 is thus subject to only a relatively low wear.
- Pulsationsdampfer 15 always substantially the first working pressure prevails.
- Pulsationsdampfer 15 of the present device 1 is therefore not subject to large load cycles and thus has a much longer life.
- the device 1 preferably has a pressure measuring device which either directly measures the pressure within the fluid line via a sensor in the fluid line 4 or determines the pressure in the fluid line 4 indirectly, for example via the position of the hydraulic unit 11. It is also conceivable that the pressure in the pulsation steam generator 15 is monitored.
- FIG. 2 is a schematic view of a device 1 and a method for the
- the second embodiment is almost identical to the first embodiment described in Figure 1, wherein in the second embodiment, in contrast to the first embodiment, only the pulsation damper 15 is provided with two access openings 17 and accordingly via two switching valves, a switching valve 16 and another switching valve 16 '. , with the fluid line 4 can be coupled.
- both switching valves 16, 16 'are closed the fluid line 4 acts as a bypass to the pulsation damper 15.
- the only difference to the operation of the illustrated in Figure 1 device 1 must always in the illustrated in Figure 2 device 1 both switching valves 16, 16' of the Control electronics 10 are controlled.
- FIG. 3 is a schematic view of a device 1 and a method for the
- the third embodiment is in turn almost identical to the first embodiment described in Figure 1, wherein in the third embodiment, in contrast to the first embodiment additionally provided a separate further Pulsationsdampfer 15 ', which can be coupled via a separate additional switching valve 16' to the fluid line 4 or the fluid line 4 can be decoupled.
- the device 1 illustrated in FIG. 3 operates exactly like the device 1 illustrated in FIG. 1, the further pulsation damper 15 'being switched on by means of the further switching valve 16' of the fluid line 4 only in the second operating mode as soon as the lower second working pressure prevails in the fluid line. otherwise (especially in the first operating mode), the further switching valve 16 'is closed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16701462T PL3271121T3 (en) | 2015-03-20 | 2016-01-22 | Device and method for cutting a good to be cut by means of a fluid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015104245.2A DE102015104245B3 (en) | 2015-03-20 | 2015-03-20 | Apparatus and method for cutting a material to be cut by means of a fluid |
PCT/EP2016/051351 WO2016150588A1 (en) | 2015-03-20 | 2016-01-22 | Device and method for cutting a good to be cut by means of a fluid |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3271121A1 true EP3271121A1 (en) | 2018-01-24 |
EP3271121B1 EP3271121B1 (en) | 2019-01-09 |
EP3271121B8 EP3271121B8 (en) | 2019-03-13 |
Family
ID=55229681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16701462.0A Active EP3271121B8 (en) | 2015-03-20 | 2016-01-22 | Device and method for cutting a good to be cut by means of a fluid |
Country Status (6)
Country | Link |
---|---|
US (1) | US10391611B2 (en) |
EP (1) | EP3271121B8 (en) |
CN (1) | CN107405754B (en) |
DE (1) | DE102015104245B3 (en) |
PL (1) | PL3271121T3 (en) |
WO (1) | WO2016150588A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT516738B1 (en) * | 2015-02-23 | 2016-08-15 | Reinhard Ing Gruber | Method and device for operating a hydraulic high pressure system |
DE102016225373A1 (en) * | 2016-12-19 | 2018-06-21 | Robert Bosch Gmbh | Device for generating a fluid jet |
AT519687A1 (en) | 2017-03-01 | 2018-09-15 | Bft Gmbh | Fluid jet or water jet cutter |
CN109139575A (en) * | 2018-09-24 | 2019-01-04 | 佛山市元利精密机械有限公司 | A kind of Water Cutting equipment just dismounted |
IT202000019525A1 (en) * | 2020-08-06 | 2022-02-06 | Waterjet Corp S R L | ULTRA HIGH PRESSURE PUMP |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2985050A (en) * | 1958-10-13 | 1961-05-23 | North American Aviation Inc | Liquid cutting of hard materials |
US3212378A (en) * | 1962-10-26 | 1965-10-19 | Union Carbide Corp | Process for cutting and working solid materials |
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DE19652298A1 (en) * | 1996-12-16 | 1998-06-18 | Rexroth Mannesmann Gmbh | Car body deep-drawing press pump with primary-loaded pistons |
DE19758159C2 (en) | 1997-01-04 | 1999-12-09 | Heinrich Van De Loecht | Linear drive with integrated pneumohydraulic pressure intensifier |
US20020056347A1 (en) * | 2000-11-15 | 2002-05-16 | Signey Ferdinand S. | Method and system for cutting integrated circuit packages |
WO2005042177A1 (en) * | 2003-11-03 | 2005-05-12 | Vln Advanced Technologies Inc. | Ultrasonic waterjet apparatus |
JP2006045119A (en) | 2004-08-04 | 2006-02-16 | Toray Ind Inc | Pyrazine derivative and nephritis-treating agent using the same as active ingredient |
DE202012001919U1 (en) * | 2012-02-23 | 2012-03-19 | Bhdt Gmbh | Hydraulic drive for a pressure intensifier |
CN203460064U (en) | 2013-08-14 | 2014-03-05 | 纪新刚 | Vehicle-mounted water cutting system |
US9677519B2 (en) | 2013-08-27 | 2017-06-13 | Kia Motors Corporation | Device for decreasing fuel pulsation of LPG vehicle |
-
2015
- 2015-03-20 DE DE102015104245.2A patent/DE102015104245B3/en active Active
-
2016
- 2016-01-22 PL PL16701462T patent/PL3271121T3/en unknown
- 2016-01-22 WO PCT/EP2016/051351 patent/WO2016150588A1/en active Application Filing
- 2016-01-22 US US15/554,531 patent/US10391611B2/en active Active
- 2016-01-22 EP EP16701462.0A patent/EP3271121B8/en active Active
- 2016-01-22 CN CN201680016774.0A patent/CN107405754B/en active Active
Also Published As
Publication number | Publication date |
---|---|
PL3271121T3 (en) | 2019-07-31 |
EP3271121B1 (en) | 2019-01-09 |
WO2016150588A1 (en) | 2016-09-29 |
CN107405754A (en) | 2017-11-28 |
EP3271121B8 (en) | 2019-03-13 |
DE102015104245B3 (en) | 2016-07-21 |
CN107405754B (en) | 2019-03-08 |
US20180071893A1 (en) | 2018-03-15 |
US10391611B2 (en) | 2019-08-27 |
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