EP2101064B1 - Cooling device for a working fluid - Google Patents

Cooling device for a working fluid Download PDF

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Publication number
EP2101064B1
EP2101064B1 EP09151017A EP09151017A EP2101064B1 EP 2101064 B1 EP2101064 B1 EP 2101064B1 EP 09151017 A EP09151017 A EP 09151017A EP 09151017 A EP09151017 A EP 09151017A EP 2101064 B1 EP2101064 B1 EP 2101064B1
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EP
European Patent Office
Prior art keywords
working fluid
pressure pump
cooling
heat exchanger
cooling device
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EP09151017A
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German (de)
French (fr)
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EP2101064A1 (en
Inventor
Franz Trieb
Gerald Retschnik
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BHDT GmbH
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BHDT GmbH
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Publication of EP2101064A1 publication Critical patent/EP2101064A1/en
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    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • 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
    • 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
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • 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
    • F04B2205/11—Outlet temperature

Definitions

  • the invention relates to a cooling device for a working fluid of a high pressure pump with pressure booster according to the preamble of claim 1.
  • High-pressure pumps such as those used for water jet cutting systems, are usually designed as a pressure booster with a working fluid.
  • the working fluid is heated, so that it is preferably cooled in the return or circulation in the supply tank.
  • a supplied drive power of a high-pressure pump of the described type of 37 kilowatts in the working fluid about 11 kilowatts are released as heat energy.
  • the temperature of the working fluid should, however, for functional and wear reasons in a range of 55 ° C to 60 ° C.
  • Such operated with cooling water heat exchangers also have the advantage that they build small or have a small footprint with a required cooling capacity, but often the cost of the amount of cooling water are considerable.
  • EP 0 015 535 A1 discloses a device for a process for condensate-free intercooling of compressed gases, which comprises in series three compressor stages and two intercooler between the compressor stages, wherein the intercooler can be acted controlled via a respective valve to achieve a calculated temperature.
  • the invention seeks to eliminate the given disadvantages of cooling devices of the type mentioned for a working fluid and sets itself the goal of creating a cooling device which in operation of the high pressure pump with pressure booster with the highest Efficiency and safety accomplished a regulation of a desired temperature of the fluid.
  • a heat exchanger can be activated by flowing air and another heat exchanger by flowing water.
  • the advantage achieved with the invention consists essentially in the fact that a selected temperature of the working fluid can be adjusted in a simple and particularly cost-effective manner by each switchable heat exchanger.
  • a heat exchanger can be activated by air flowing through and a further heat exchanger by water flowing through, the desired temperature of the working fluid can be regulated particularly efficiently.
  • the working fluid / air heat exchanger by electric or hydraulic motors, the latter preferably connected in the cooling circuit, activated, whereby a simple, safe and economical connectivity is achieved.
  • the working fluid / water heat exchanger can be activated by switching on with water via switching means, an effective additional cooling for a desired temperature control of the working fluid can be ensured at the lowest cost for the cooling.
  • switching means are used with a simple on / off function, because, as has been found, this allows a particularly simple and safe, but also sufficient control circuit of the temperature in the desired limits.
  • Fig. 1 shows a cooling device according to the invention in principle.
  • FIG. 1 schematically a vessel with working fluid A is shown.
  • a cooling circuit 4 with a line for a working fluid and with a pump 5 ensures the circulation and the passage of the fluid A through a cooling device 1.
  • the cooling circuit 4 can also be advantageous filter device 10, for example, for particles with a diameter greater than 5 microns, to be on.
  • a control unit 8 'with a temperature sensor 81' and a control unit 8 with a temperature sensor 81 can activate and deactivate on the one hand a switching means 6 for a heat exchanger 2 (working fluid / air) and on the other hand a switching means 7 for a heat exchanger 3 (working fluid / water).
  • a control unit 8 "with a temperature sensor 81" can be provided as a safety device for switching off the high-pressure pump when an upper limit temperature is exceeded.
  • a working fluid A When operating a high-pressure pump with pressure booster, for example, a working fluid A is guided in a cooling circuit 4 and continuously cleaned in a filter 10. If the working fluid A in the container reaches a temperature of, for example, 50 ° C., which can be determined by temperature sensors 81, 81 ', 81 ", a switching means 6 activates cooling air admission of the heat exchanger 2 by a fan motor 9, which feeds cool air, for example a temperature of 45 ° C. of the working fluid A. With such an opening / closing circuit by the control unit 8 ', a favorable temperature stability of the working fluid A and thus a gentle continuous full load operation of a high-pressure pump can be achieved in a simple manner.
  • the temperature sensor 81 or the control unit 8 activates the switching means 7 for water, as a result of which additional cooling takes place triggered via the working fluid / water heat exchanger 3 and a downstream additional or additional heat removal from the working fluid A is accomplished in the cooling circuit 4.
  • a working fluid / water cooling by the heat exchanger 3 can be controlled in a simple manner even after an off / on function of the control unit 8 and tuned to the working fluid / air cooling.

Description

Die Erfindung bezieht sich auf eine Kühleinrichtung für ein Arbeitsfluid einer Hochdruckpumpe mit Druckübersetzer gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a cooling device for a working fluid of a high pressure pump with pressure booster according to the preamble of claim 1.

Hochdruckpumpen, wie diese beispielsweise für Wasserstrahl-Schneidanlagen eingesetzt werden, sind zumeist als Druckübersetzer mit einem Arbeitsfluid konzipiert. Im Betrieb erwärmt sich das Arbeitsfluid, sodass eine Kühlung desselben vorzugsweise im Rücklauf oder Umlauf in den Bereitstellungstank erfolgt. Beispielsweise werden bei einer zugeführten Antriebsleistung einer Hochdruckpumpe der beschriebenen Art von 37 Kilowatt im Arbeitsfluid etwa 11 Kilowatt als Wärmeenergie freigesetzt. Die Temperatur des Arbeitsfluids soll jedoch aus Funktions- und Verschleißgründen in einem Bereich von 55 °C bis 60 °C liegen.High-pressure pumps, such as those used for water jet cutting systems, are usually designed as a pressure booster with a working fluid. During operation, the working fluid is heated, so that it is preferably cooled in the return or circulation in the supply tank. For example, with a supplied drive power of a high-pressure pump of the described type of 37 kilowatts in the working fluid about 11 kilowatts are released as heat energy. The temperature of the working fluid should, however, for functional and wear reasons in a range of 55 ° C to 60 ° C.

Es ist bekannt, eine Kühlung des Arbeitsfluids mit einem mit Luft betriebenen Wärmetauscher vorzusehen, wobei auf einfache Weise durch eine Ein-/Aus-Schaltung eines Lüfters eine Einstellung der vorgesehenen Fluidtemperatur erfolgen kann. Besteht jedoch die Gefahr einer gegebenenfalls auch nur zeitweisen Überschreitung der Kühllufttemperatur von ca. 35 °C, so wird aus Sicherheitsgründen von einer Rückkühlung durch Luft abgesehen und ein mit Wasser beaufschlagbarer Wärmetauscher vorgesehen.It is known to provide a cooling of the working fluid with an air-operated heat exchanger, which can be done easily by an on / off circuit of a fan, an adjustment of the intended fluid temperature. However, there is a risk of possibly even temporarily exceeding the cooling air temperature of about 35 ° C, it is for safety reasons apart from a re-cooling by air and provided with water heat exchanger provided.

Derartige mit Kühlwasser betriebene Wärmetauscher haben auch den Vorteil, dass diese klein bauen bzw. einen geringen Platzbedarf bei einer erforderlichen Kühlleistung aufweisen, allerdings sind oft die Kosten für die Kühlwassermenge beträchtlich.Such operated with cooling water heat exchangers also have the advantage that they build small or have a small footprint with a required cooling capacity, but often the cost of the amount of cooling water are considerable.

Die aus dem Dokument FR 2 810 267 A1 in Verbindung miteinander bekannten Merkmale sind im Oberbegriff des unabhängigen Anspruchs 1 zusammengefasst.The from the document FR 2 810 267 A1 Features known in conjunction with each other are summarized in the preamble of independent claim 1.

In der EP 0 015 535 A1 ist eine Vorrichtung für ein Verfahren zur kondensatfreien Zwischenkühlung verdichteter Gase offenbart, welche in Serie drei Verdichterstufen und zwei Zwischenkühler zwischen den Verdichterstufen umfasst, wobei die Zwischenkühler über jeweils ein Ventil zur Erreichung einer berechneten Temperatur geregelt beaufschlagbar sind.In the EP 0 015 535 A1 discloses a device for a process for condensate-free intercooling of compressed gases, which comprises in series three compressor stages and two intercooler between the compressor stages, wherein the intercooler can be acted controlled via a respective valve to achieve a calculated temperature.

Die Erfindung will die gegebenen Nachteile von Kühleinrichtungen der eingangs genannten Art für ein Arbeitsfluid beseitigen und setzt sich zum Ziel, eine Kühleinrichtung zu schaffen, welche im Betrieb der Hochdruckpumpe mit Druckübersetzer mit höchster Wirtschaftlichkeit und Sicherheit eine Regelung einer gewünschten Temperatur des Fluids bewerkstelligt.The invention seeks to eliminate the given disadvantages of cooling devices of the type mentioned for a working fluid and sets itself the goal of creating a cooling device which in operation of the high pressure pump with pressure booster with the highest Efficiency and safety accomplished a regulation of a desired temperature of the fluid.

Dieses Ziel wird bei einer eingangs genannten Kühleinrichtung dadurch erreicht, dass ein Wärmetauscher durch durchströmende Luft und ein weiterer Wärmetauscher durch durchströmendes Wasser aktivierbar ist.This object is achieved in a cooling device mentioned above in that a heat exchanger can be activated by flowing air and another heat exchanger by flowing water.

Der mit der Erfindung erreichte Vorteil besteht im Wesentlichen darin, dass durch jeweils zuschaltbare Wärmetauscher eine gewählte Temperatur des Arbeitsfluids auf einfache und insbesondere kostengünstige Weise eingestellt werden kann.The advantage achieved with the invention consists essentially in the fact that a selected temperature of the working fluid can be adjusted in a simple and particularly cost-effective manner by each switchable heat exchanger.

Wenn auch die Umgebungsluft des mit dieser beaufschlagbaren Wärmetauschers in Zeiträumen mit erhöhter Außentemperatur nicht für eine genügende Rückkühlung des Arbeitsfluids ausreicht und deshalb eine Unterbrechung oder Rücknahme der Hochdruckpumpenleistung erfolgen müsste, kann durch eine erfindungsgemäße Einrichtung bei Zuschaltung einer Additiv-Wasser-Kühlung eine erforderliche Pumpenleistung aufrechterhalten werden. Untersuchungen haben überraschend ergeben, dass trotz erhöhter Einrichtungskosten die Aufwendungen für die Kühlmittel im Langzeitbetrieb der Hochdruckpumpe mit Druckübersetzer wesentlich geringer gehalten werden können als bei alleiniger Wasser- oder Luftkühlung mit erhöhter Kühlkapazität.Although the ambient air of the heat exchanger which can be acted upon with this heat exchanger is not sufficient for sufficient recooling of the working fluid during periods of increased outside temperature and therefore interruption or withdrawal of the high-pressure pump power must be maintained, a required pump capacity can be maintained by a device according to the invention when an additive-water cooling system is switched on become. Surveys have surprisingly shown that despite increased installation costs, the expenses for the coolant in the long-term operation of the high-pressure pump with pressure booster can be kept substantially lower than in the sole water or air cooling with increased cooling capacity.

Wenn in günstiger Weise ein Wärmetauscher durch durchströmende Luft und ein weiterer Wärmetauscher durch durchströmendes Wasser aktivierbar ist, kann die gewünschte Temperatur des Arbeitsfluids besonders effizient geregelt werden.If, in a favorable manner, a heat exchanger can be activated by air flowing through and a further heat exchanger by water flowing through, the desired temperature of the working fluid can be regulated particularly efficiently.

Nach einer bevorzugten Ausführungsform der Erfindung ist der Arbeitsfluid/Luft-Wärmetauscher durch Elektro- oder Hydraulikmotoren, letztere vorzugsweise im Kühlkreislauf geschaltet, aktivierbar, wodurch eine einfache, sichere und auch wirtschaftliche Zuschaltbarkeit erreicht wird.According to a preferred embodiment of the invention, the working fluid / air heat exchanger by electric or hydraulic motors, the latter preferably connected in the cooling circuit, activated, whereby a simple, safe and economical connectivity is achieved.

Wenn weiters der Arbeitsfluid/Wasser-Wärmetauscher durch Beaufschlagung mit Wasser über Schaltmittel aktivierbar ist, kann bei geringsten Kosten für die Kühlung eine wirkungsvolle Zusatzkühlung für eine gewünschte Temperaturregelung des Arbeitsfluids sichergestellt werden.Further, if the working fluid / water heat exchanger can be activated by switching on with water via switching means, an effective additional cooling for a desired temperature control of the working fluid can be ensured at the lowest cost for the cooling.

Bevorzugt werden Schaltmittel mit einer einfachen Ein-/Aus-Funktion verwendet, weil, wie sich herausgestellt hat, diese eine besonders einfache und sichere, aber auch ausreichende Regelschaltung der Temperatur in den gewünschten Grenzen ermöglicht.Preferably switching means are used with a simple on / off function, because, as has been found, this allows a particularly simple and safe, but also sufficient control circuit of the temperature in the desired limits.

Letztlich hat es sich als besonders vorteilhaft erwiesen, insbesondere im Hinblick auf eine Energieversorgung in von der Norm abliegenden Spannungsbereichen, wenn der Antrieb bzw. die Pumpe für die Förderanlage vom Arbeitsfluid in Wirkverbindung mit dem Antriebsmotor für die Hochdruckpumpe steht. Derart ist sichergestellt, dass eine Kühlung des Arbeitsfluids gleichzeitig mit dem Betrieb der Hochdruckpumpe mit Druckübersetzer erfolgt und keine anspeisungsbedingte Minderleistung des Kühlsystems auftreten kann.Finally, it has proved to be particularly advantageous, in particular with regard to an energy supply in voltage ranges lying away from the norm, when the drive or the pump for the conveyor system is in operative connection with the drive motor for the high-pressure pump. In this way, it is ensured that cooling of the working fluid takes place simultaneously with the operation of the high-pressure pump with pressure booster and that no supply-related reduced power of the cooling system can occur.

Fig. 1 zeigt eine erfindungsgemäße Kühleinrichtung prinzipiell. Fig. 1 shows a cooling device according to the invention in principle.

Für eine leichte Zuordnung der Teile in der Figur kann die nachfolgende Bezugszeichenliste dienen:

A
Arbeitsfluid
1
Kühleinrichtung
2
Wärmetauscher Arbeitsfluid/Luft
3
Wärmetauscher Arbeitsfluid/Wasser
4
Kühlkreislauf für Arbeitsfluid
5
Pumpe
6
Schaltmittel für Luft
7
Schaltmittel für Wasser
8, 8', 8"
Steuereinheiten
81, 81', 81"
Temperaturfühler
9
Motor für einen Ventilator
10
Filter
For easy allocation of the parts in the figure, the following list of reference numerals serve:
A
working fluid
1
cooling device
2
Heat exchanger working fluid / air
3
Heat exchanger working fluid / water
4
Cooling circuit for working fluid
5
pump
6
Switching means for air
7
Switching means for water
8, 8 ', 8 "
control units
81, 81 ', 81 "
temperature sensor
9
Motor for a fan
10
filter

In Fig. 1 ist schematisch ein Gefäß mit Arbeitsfluid A gezeigt. Ein Kühlkreislauf 4 mit einer Leitung für ein Arbeitsfluid und mit einer Pumpe 5 sichert den Umlauf und den Durchlauf des Fluids A durch eine Kühleinrichtung 1. Im Kühlkreislauf 4 kann auch mit Vorteil eine Filtereinrichtung 10, beispielsweise für Teilchen mit einem Durchmesser von größer 5 µm, eingeschaltet sein.In Fig. 1 schematically a vessel with working fluid A is shown. A cooling circuit 4 with a line for a working fluid and with a pump 5 ensures the circulation and the passage of the fluid A through a cooling device 1. In the cooling circuit 4 can also be advantageous filter device 10, for example, for particles with a diameter greater than 5 microns, to be on.

Eine Steuereinheit 8' mit einem Temperaturfühler 81' und eine Steuereinheit 8 mit einem Temperaturfühler 81 können einerseits ein Schaltmittel 6 für einen Wärmetauscher 2 (Arbeitsfluid/Luft) und andererseits ein Schaltmittel 7 für einen Wärmetauscher 3 (Arbeitsfluid/Wasser) aktivieren und deaktivieren.A control unit 8 'with a temperature sensor 81' and a control unit 8 with a temperature sensor 81 can activate and deactivate on the one hand a switching means 6 for a heat exchanger 2 (working fluid / air) and on the other hand a switching means 7 for a heat exchanger 3 (working fluid / water).

Eine Steuereinheit 8" mit einem Temperaturfühler 81" kann als Sicherheitseinrichtung für ein Abschalten der Hochdruckpumpe bei Überschreiten einer oberen Grenztemperatur vorgesehen sein.A control unit 8 "with a temperature sensor 81" can be provided as a safety device for switching off the high-pressure pump when an upper limit temperature is exceeded.

Beim Betrieb einer Hochdruckpumpe mit Druckübersetzer wird beispielsweise ein Arbeitsfluid A in einem Kühlkreislauf 4 geführt und laufend in einem Filter 10 gereinigt. Erreicht das Arbeitsfluid A im Behälter eine Temperatur von beispielsweise 50 °C, was durch Temperaturfühler 81, 81', 81" ermittelt werden kann, so aktiviert ein Schaltmittel 6 eine Kühlluftbeaufschlagung des Wärmetauschers 2 durch einen Lüftermotor 9, welche Kühlluftbeaufschlagung z. B. bei einer Temperatur von 45 °C des Arbeitsfluids A abgeschaltet wird. Mit einer derartigen Aus-/Ein-Schaltung durch die Steuereinheit 8' kann auf einfache Weise im Normalfall eine vorteilhafte Temperaturkonstanz des Arbeitsfluids A und damit ein schonender Dauervolllastbetrieb einer Hochdruckpumpe erreicht werden.When operating a high-pressure pump with pressure booster, for example, a working fluid A is guided in a cooling circuit 4 and continuously cleaned in a filter 10. If the working fluid A in the container reaches a temperature of, for example, 50 ° C., which can be determined by temperature sensors 81, 81 ', 81 ", a switching means 6 activates cooling air admission of the heat exchanger 2 by a fan motor 9, which feeds cool air, for example a temperature of 45 ° C. of the working fluid A. With such an opening / closing circuit by the control unit 8 ', a favorable temperature stability of the working fluid A and thus a gentle continuous full load operation of a high-pressure pump can be achieved in a simple manner.

Steigt jedoch die Temperatur des Arbeitsfluids A beispielsweise auf eine Temperatur von über 60 °C an, was durch hohe Kühllufttemperaturen oder geringe Kühlluftmengen bewirkt sein kann, so erfolgt durch Temperaturfühler 81 bzw. die Steuereinheit 8 eine Aktivierung des Schaltmittels 7 für Wasser, wodurch eine Zusatzkühlung über den Arbeitsfluid/Wasser-Wärmetauscher 3 ausgelöst und eine nachgeordnete weitere bzw. zusätzliche Wärmeabfuhr aus dem Arbeitsfluid A in den Kühlkreislauf 4 bewerkstelligt wird.If, however, the temperature of the working fluid A increases, for example, to a temperature of more than 60 ° C., which may be caused by high cooling air temperatures or small amounts of cooling air, the temperature sensor 81 or the control unit 8 activates the switching means 7 for water, as a result of which additional cooling takes place triggered via the working fluid / water heat exchanger 3 and a downstream additional or additional heat removal from the working fluid A is accomplished in the cooling circuit 4.

Eine Arbeitsfluid/Wasser-Kühlung durch den Wärmetauscher 3 kann in einfacher Weise auch nach einer Aus-/Ein-Funktion der Steuereinheit 8 gesteuert und auf die Arbeitsfluid/Luft-Kühlung abgestimmt sein.A working fluid / water cooling by the heat exchanger 3 can be controlled in a simple manner even after an off / on function of the control unit 8 and tuned to the working fluid / air cooling.

Claims (7)

  1. A high-pressure pump with a pressure intensifier and a cooling device (1) for a working fluid (A) of the high-pressure pump conveyed in a cooling circuit (4) of the cooling device (1), wherein the cooling device (1) comprises a delivery system and heat exchangers (2, 3) for the working fluid (A), characterized in that the cooling device (1) is formed with at least two heat exchangers (2, 3) which heat exchangers (2, 3) are connected in series in the cooling circuit (4), which cooling circuit (4) can be specifically pressurized by at least one pump (5) and has control units (8, 8', 8") by which an activation or deactivation of the respective heat exchangers (2, 3) can be switched at desired adjustable temperatures by means (6, 7), wherein one heat exchanger (2) can be activated by air flowing therethrough and a further heat exchanger (3) by water flowing therethrough.
  2. The high-pressure pump according to claim 1, characterized in that the working fluid/air heat exchanger or working fluid/air heat exchangers (2) can be activated by electric motors or hydraulic motors (9) wherein the latter are preferably connected in series in the cooling circuit (4).
  3. The high-pressure pump according to claim 1 or claim 2, characterized in that the working fluid/air heat exchanger or working fluid/air heat exchangers (3) can be activated via switching means (7) when pressurized with water.
  4. The high-pressure pump according to any one of the claims 1 to 3, characterized in that the switching means (6, 7) have an on/off function.
  5. The high-pressure pump according to any one of the claims 1 to 4, characterized in that the pump (5) for the delivery system of the working fluid (A) is operatively connected to the drive motor for the high-pressure pump.
  6. A use of a high-pressure pump according to any one of the claims 1 to 5 for waterjet-cutting units.
  7. A waterjet-cutting unit comprising a high-pressure pump with pressure intensifier according to any one of the claims 1 to 5.
EP09151017A 2008-03-11 2009-01-21 Cooling device for a working fluid Active EP2101064B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0038408A AT506086B1 (en) 2008-03-11 2008-03-11 COOLING DEVICE FOR A WORKFLUID

Publications (2)

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EP2101064A1 EP2101064A1 (en) 2009-09-16
EP2101064B1 true EP2101064B1 (en) 2011-04-27

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US (1) US20090229793A1 (en)
EP (1) EP2101064B1 (en)
JP (1) JP2009216099A (en)
AT (2) AT506086B1 (en)
CA (1) CA2657166C (en)
DE (1) DE502009000563D1 (en)
DK (1) DK2101064T3 (en)
ES (1) ES2365835T3 (en)
PT (1) PT2101064E (en)
RU (1) RU2400648C1 (en)

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US9649744B2 (en) 2013-07-30 2017-05-16 Omax Corporation Reducing small colloidal particle concentrations in feed and/or byproduct fluids in the context of waterjet processing
AU2016363679B2 (en) * 2015-12-02 2020-03-12 Dug Technology (Australia) Pty Ltd Fluid cooling system and method for electronics equipment
US11577366B2 (en) 2016-12-12 2023-02-14 Omax Corporation Recirculation of wet abrasive material in abrasive waterjet systems and related technology
US11224987B1 (en) 2018-03-09 2022-01-18 Omax Corporation Abrasive-collecting container of a waterjet system and related technology
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JP2009216099A (en) 2009-09-24
US20090229793A1 (en) 2009-09-17
PT2101064E (en) 2011-06-14
RU2400648C1 (en) 2010-09-27
AT506086A4 (en) 2009-06-15
ATE507045T1 (en) 2011-05-15
DK2101064T3 (en) 2011-08-15
AT506086B1 (en) 2009-06-15
DE502009000563D1 (en) 2011-06-09
CA2657166A1 (en) 2009-09-11
CA2657166C (en) 2011-11-29
EP2101064A1 (en) 2009-09-16
ES2365835T3 (en) 2011-10-11

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