DE202004012678U1 - Device for creating of fluid aerosol has valve for opening and closing of fluid feed and which is located directly before nozzle and periodically cycled in time intervals, whereby valve has opening and closing times in millisecond range - Google Patents

Device for creating of fluid aerosol has valve for opening and closing of fluid feed and which is located directly before nozzle and periodically cycled in time intervals, whereby valve has opening and closing times in millisecond range Download PDF

Info

Publication number
DE202004012678U1
DE202004012678U1 DE202004012678U DE202004012678U DE202004012678U1 DE 202004012678 U1 DE202004012678 U1 DE 202004012678U1 DE 202004012678 U DE202004012678 U DE 202004012678U DE 202004012678 U DE202004012678 U DE 202004012678U DE 202004012678 U1 DE202004012678 U1 DE 202004012678U1
Authority
DE
Germany
Prior art keywords
nozzle
valve
opening
closing
fluid
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.)
Expired - Lifetime
Application number
DE202004012678U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Topas Technologieorientie GmbH
Topas Technologieorientierte Partikel- Analysen- und Sensortechnik GmbH
Original Assignee
Topas Technologieorientie GmbH
Topas Technologieorientierte Partikel- Analysen- und Sensortechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Topas Technologieorientie GmbH, Topas Technologieorientierte Partikel- Analysen- und Sensortechnik GmbH filed Critical Topas Technologieorientie GmbH
Priority to DE202004012678U priority Critical patent/DE202004012678U1/en
Publication of DE202004012678U1 publication Critical patent/DE202004012678U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3053—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a solenoid
    • 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
    • B05B1/24—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means incorporating means for heating the liquid or other fluent material, e.g. electrically
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump

Landscapes

  • Nozzles (AREA)

Abstract

The device for the creating of a fluid aerosol has a nozzle (1), fluid feed to the nozzle, and a valve (2) for the opening and closing of the fluid feed. The valve, viewed from the fluid feed, is located directly before the nozzle and is periodically cycled in time intervals. The valve has opening and closing times in the millisecond range. The valve consists of solenoids and a closing pin connected to the solenoids and protruding into the nozzle from the inside.

Description

Die Erfindung betrifft eine Vorrichtung zur Erzeugung eines Aerosols aus einer Flüssigkeit (im folgenden Flüssigkeitsaerosol) mittels Einstoffdüse, vorzugsweise für Prüfzwecke.The The invention relates to a device for producing an aerosol from a liquid (hereinafter referred to as liquid aerosol) by means of a single-substance nozzle, preferably for testing purposes.

Aerosolgeneratoren mit einer Einstoffdüse, durch die eine Flüssigkeit, z. B. ein Öl , zerstäubt wird, sind bekannt. Vor der Düse wird in der Flüssigkeit ein Druck aufgebaut. Beim Durchtritt durch die Düse wird die Flüssigkeit zerstäubt. Die Größe der Aerosoltröpfchen verteilt sich in Abhängigkeit von der Düse, dem Differenzdruck an der Düse und der Viskosität der Flüssigkeit. Die Viskosität selbst ist wiederum von der Temperatur der Flüssigkeit abhängig.aerosol generators with a single component nozzle the one liquid z. B. an oil is atomized are known. In front of the nozzle becomes in the liquid a pressure built up. As it passes through the nozzle, the liquid becomes atomized. The size of the aerosol droplets spread yourself in dependence from the nozzle, the differential pressure at the nozzle and the viscosity the liquid. The viscosity itself is dependent on the temperature of the liquid.

Für Prüfzwecke ist es oft erforderlich, eine bestimmte Tröpfchenverteilung zu erzeugen. Um dieses Ziel zu erreichen, sind die Düse, die Flüssigkeit, ihre Temperatur und der Differenzdruck bzw. ein bestimmter Volumenstrom, bei dem unter den angegebenen Bedingungen dieser Differenzdruck entsteht, auszuwählen bzw. einzustellen.For testing purposes it is often necessary to create a certain droplet distribution. To achieve this goal are the nozzle, the liquid, their temperature and the differential pressure or a certain volume flow at which under under the specified conditions this differential pressure arises, to select or adjust.

Sind diese Einstellmöglichkeiten erschöpft, so entsteht eben bei der gewählten Düse, ihrer Einstellung, der Flüssigkeit, ihrer Viskosität bzw. Temperatur und dem Volumenstrom bzw. der Druckdifferenz nur eine Tröpfchenverteilung und keine andere. Oder umgekehrt, wenn eine bestimmte Tröpfchenverteilung erzeugt werden soll, dann ergibt sich unter den gewählten Bedingungen auch nur ein Volumenstrom, mit dem dieses Tröpfchenbild zerstäubt werden kann. Ein wesentlich kleinerer Volumenstrom mit gleicher Tröpfchenverteilung kann beispielsweise bei sonst gleichen Parametern nicht erzeugt werden.are these setting options exhausted, like this arises with the chosen one Nozzle, hers Setting, the liquid, their viscosity or temperature and the volume flow or the pressure difference only a droplet distribution and no other. Or vice versa, if a certain droplet distribution is to be generated, then results under the selected conditions even a volume flow with which this droplet image can be atomized. A much smaller volume flow with the same droplet distribution cannot be generated, for example, with the same parameters become.

Aufgabe der Erfindung ist es, die Variabilität der Einstellmöglichkeiten eines Aerosolgenerators mit einer Einstoffdüse zur Zerstäubung von Flüssigkeiten weiter zu erhöhen.task the invention is the variability of the setting options of an aerosol generator with a single substance nozzle for atomizing liquids to increase further.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass die Einstoffdüse des Aerosolgenerators in zeitlich kurzen, periodisch aufeinanderfolgenden Intervallen geschlossen und geöffnet wird.According to the Task solved by that the single component nozzle of the aerosol generator at short, periodically consecutive intervals closed and opened becomes.

Die Öffnungs- und die Schließzeiten der Düse können unabhängig voneinander eingestellt werden. Mit einer Vergrößerung der Schließzeiten der Düse verringert sich der Volumenstrom. Durch Änderung der Taktzeiten und Periodendauer ist der Aerosolgenerator in einem weiteren Parameter einstellbar.The opening and the closing times the nozzle can independently from each other. With an increase in the closing times of the Nozzle reduced the volume flow. By change the cycle times and period duration is the aerosol generator in one further parameters adjustable.

Es hat sich gezeigt, dass bei Verwendung rasch schließender und öffnender Ventile quasi stationäre Bedingungen erzielt werden. Über eine große Variationsbreite des Volumenstroms kann nahezu dasselbe Tröpfchenbild erzielt werden. Die praktische Konstanz der Tröpfchenverteilung ist sogar so gut, dass die Lösung zur Erzeugung von Prüfaerosolen eingesetzt werden kann.It has been shown to be quick closing and opening when used Quasi stationary valves Conditions are achieved. about a wide range of variations of the volume flow, almost the same droplet pattern can be achieved. The practical constancy of the droplet distribution is even so good that the solution for the generation of test aerosols can be used.

Weitere Merkmale der Erfindung werden in den Ansprüchen genannt und im folgenden Ausführungsbeispiel näher erläutert.Further Features of the invention are set out in the claims and below embodiment explained in more detail.

In den Zeichnungen zeigenIn show the drawings

1 ein Schema eines erfindungsgemäßen Aerosolgenerators, 1 a diagram of an aerosol generator according to the invention,

2 einen Schnitt durch einen Düsenblock gemäß 1, 2 a section through a nozzle block according to 1 .

3 eine schematische Darstellung der Arbeitsweise des erfindungsgemäßen Aerosolgenerators. 3 is a schematic representation of the operation of the aerosol generator according to the invention.

Im Beispiel wird Öl zerstäubt. Eine Ausführung der erfindungsgemäßen Vorrichtung ist in 1 dargestellt. Sie besteht im wesentlichen aus einem Windkessel 3, einem Düsenblock 10 und einer nicht dargestellten Regelungseinrichtung, beispielsweise in Form eines Prozessrechners.In the example, oil is atomized. An embodiment of the device according to the invention is shown in 1 shown. It essentially consists of an air chamber 3 , a nozzle block 10 and a control device, not shown, for example in the form of a process computer.

Der Windkessel 3 ist mit Öl gefüllt. Die Luft strömt über einen Druckminderer 5 in den Windkessel 3. Der Innendruck wird mit einem Drucksensor 4 gemessen. Er wird mit der Regeleinrichtung auf einen konstanten Wert eingestellt.The wind boiler 3 is filled with oil. The air flows through a pressure reducer 5 in the wind boiler 3 , The internal pressure is with a pressure sensor 4 measured. It is set to a constant value with the control device.

Der Düsenblock 10 besteht aus einer Einstoffdüse 1, einem elektromagnetisch betätigten Ventil 2, einer Heizung 6 und einem Temperatursensor 7.The nozzle block 10 consists of a single-component nozzle 1 , an electromagnetically operated valve 2 , a heater 6 and a temperature sensor 7 ,

Gemäß 2 ist die Düse 1 eine Ringspaltdüse. Die Größe des Ringspalts 1.1 wird durch axiale Verschiebung einer Düsenspitze 1.2 von außen eingestellt. Die Düse 1 kann mit dem Ventil 2 von innen geöffnet und verschlossen werden. Das Ventil 2 besteht aus einem Magneten 2.1, einer Spule 2.2 und einem Schließdorn 2.3. Der Magnet 2.1 gleitet axial in der Spule 2.2. Der Schließdorn 2.3 ist mit dem Magneten 2.1 verbunden. Die Spule 2.2 zieht den Magneten gegen die Kraft einer nicht eingezeichneten Feder von der Düsenöffnung zurück und gibt dadurch den Weg für das im Windkessel 3 unter Druck stehende Öl durch die Düse 1 frei. Beim Abschalten des Stroms durch die Spule 2.2 schnellt der Schließdorn 2.3 vor und verschließt die Düse 1 von innen.According to 2 is the nozzle 1 an annular gap nozzle. The size of the ring gap 1.1 is caused by axial displacement of a nozzle tip 1.2 set from the outside. The nozzle 1 can with the valve 2 can be opened and closed from the inside. The valve 2 consists of a magnet 2.1 , a coil 2.2 and a locking pin 2.3 , The magnet 2.1 slides axially in the coil 2.2 , The closing pin 2.3 is with the magnet 2.1 connected. The sink 2.2 pulls the magnet back against the force of a spring (not shown) from the nozzle opening and thereby gives the way for that in the air chamber 3 pressurized oil through the nozzle 1 free. When switching off the current through the coil 2.2 the closing pin snaps 2.3 in front and closes the nozzle 1 from the inside.

Der Düsenblock 10 ist beheizt. In wenigstens einer Öffnung 6 liegt eine (nicht dargestellte) elektrisch betriebene Heizpatrone. Außerdem ist wenigstens ein Temperatursensor 7 vorgesehen. Heizpatrone(n) und Temperatursensor 7 sind an einen Regelkreis angeschlossen. Der Düsenblock 10 besitzt eine verhältnismäßig große Wärmespeicherkapazität, so dass mit Hilfe der Temperaturregelung über alle Intervalle eine weitgehend konstante Öltemperatur erzielt wird.The nozzle block 10 is heated. In at least one opening 6 there is an electrically operated heating cartridge (not shown). There is also at least one temperature sensor 7 intended. Heating cartridge (s) and temperature sensor 7 are connected to a control loop. The nozzle block 10 owns one relatively large heat storage capacity, so that with the help of the temperature control a largely constant oil temperature is achieved over all intervals.

Das Ventil 2 wird in periodischen Intervallen getaktet. Gemäß 3 ist es zu Zeiten t1 geöffnet und zu Zeiten t2 geschlossen. Die Periodendauer T ergibt sich als Summe beider Zeiten. Beide Zeiten können unabhängig voneinander mit der Regeleinrichtung eingestellt werden. Die Öffnungs- und Schließzeiten des elektromagnetischen Ventils 2 liegen im Millisekundenbereich. Sie bleiben praktisch ohne wesentliche Auswirkungen auf die Tröpfenchenverteilung bzw. in der Summe aller Intervalle ergibt sich ein quasi konstantes Tröpfchenbild. Mit einer Vergrößerung der Intervalle t2 verringert sich der Volumenstrom durch die Düse 1. Beispielsweise kann mit einer Zeit von t1=5 Sek. und t2=10 Sek. der Volumenstrom, der bei konstantem Zerstäuben die gewünschte Tröpfchenverteilung liefert, auf 1/3 reduziert werden.The valve 2 is clocked at periodic intervals. According to 3 it is open at times t 1 and closed at times t 2 . The period T is the sum of both times. Both times can be set independently of one another with the control device. The opening and closing times of the electromagnetic valve 2 are in the millisecond range. They remain practically without any significant effects on the droplet distribution or the sum of all intervals results in a quasi-constant droplet pattern. With an increase in the intervals t 2 , the volume flow through the nozzle decreases 1 , For example, with a time of t 1 = 5 seconds and t 2 = 10 seconds, the volume flow that delivers the desired droplet distribution with constant atomization can be reduced to 1/3.

Claims (9)

Vorrichtung zur Erzeugung eines Flüssigkeitsaerosols mit einer Einstoffdüse, einer Flüssigkeitszufuhr zur Düse und einem Ventil zum Öffnen und Schließen der Flüssigkeitszufuhr, gekennzeichnet dadurch, dass das Ventil (2) -von der Flüssigkeitszufuhr aus gesehen- unmittelbar vor der Düse (1) angeordnet und periodisch in zeitlichen Intervallen getaktet ist.Device for producing a liquid aerosol with a single-substance nozzle, a liquid supply to the nozzle and a valve for opening and closing the liquid supply, characterized in that the valve ( 2 ) - seen from the liquid supply - immediately in front of the nozzle ( 1 ) is arranged and periodically clocked at time intervals. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, dass das Ventil (2) Öffnungs- und Schließzeiten im Millisekundenbereich aufweist.Device according to claim 1, characterized in that the valve ( 2 ) Has opening and closing times in the millisecond range. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, dass das Ventil (2) aus einem Elektromagneten (2.1 und 2.2) sowie einem mit dem Magneten (2.1) verbundenem Schließdorn (2.3), der von innen in die Düse (1) ragt, besteht.Device according to claim 1, characterized in that the valve ( 2 ) from an electromagnet ( 2.1 and 2.2 ) and one with the magnet ( 2.1 ) connected locking pin ( 2.3 ) from the inside into the nozzle ( 1 ) protrudes, exists. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, dass die Düse (1) eine Ringspaltdüse ist.Device according to claim 1, characterized in that the nozzle ( 1 ) is an annular gap nozzle. Vorrichtung nach Anspruch 4, gekennzeichnet dadurch, dass die Größe des Ringspalts (1.1) mit einer Düsenspitze (1.2) von außen einstellbar ist.Device according to claim 4, characterized in that the size of the annular gap ( 1.1 ) with a nozzle tip ( 1.2 ) is adjustable from the outside. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, dass die Flüssigkeitszufuhr, das Ventil (2) und die Düse (1) in einem Düsenblock (10) angeordnet sind.Device according to claim 1, characterized in that the liquid supply, the valve ( 2 ) and the nozzle ( 1 ) in a nozzle block ( 10 ) are arranged. Vorrichtung nach Anspruch 6, gekennzeichnet dadurch, dass der Düsenblock (10) eine große Wärmespeicherkapazität aufweist.Apparatus according to claim 6, characterized in that the nozzle block ( 10 ) has a large heat storage capacity. Vorrichtung nach Anspruch 6, gekennzeichnet dadurch, dass in dem Düsenblock (10) wenigstens eine Heizpatrone (6) und wenigstens ein Temperatursensor (7) vorgesehen sind und beide in einem Regelkreis zur Einstellung der Temperatur des Düsenblocks (10) liegen.Apparatus according to claim 6, characterized in that in the nozzle block ( 10 ) at least one heating cartridge ( 6 ) and at least one temperature sensor ( 7 ) are provided and both in a control circuit for setting the temperature of the nozzle block ( 10 ) lie. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, dass zur Flüssigkeitszufuhr zur Düse (1) ein druckgeregelter Windkessel (3) vorgesehen ist.Apparatus according to claim 1, characterized in that for the supply of liquid to the nozzle ( 1 ) a pressure-controlled wind boiler ( 3 ) is provided.
DE202004012678U 2003-09-29 2004-08-13 Device for creating of fluid aerosol has valve for opening and closing of fluid feed and which is located directly before nozzle and periodically cycled in time intervals, whereby valve has opening and closing times in millisecond range Expired - Lifetime DE202004012678U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202004012678U DE202004012678U1 (en) 2003-09-29 2004-08-13 Device for creating of fluid aerosol has valve for opening and closing of fluid feed and which is located directly before nozzle and periodically cycled in time intervals, whereby valve has opening and closing times in millisecond range

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10345590 2003-09-29
DE10345590.6 2003-09-29
DE202004012678U DE202004012678U1 (en) 2003-09-29 2004-08-13 Device for creating of fluid aerosol has valve for opening and closing of fluid feed and which is located directly before nozzle and periodically cycled in time intervals, whereby valve has opening and closing times in millisecond range

Publications (1)

Publication Number Publication Date
DE202004012678U1 true DE202004012678U1 (en) 2004-10-21

Family

ID=33395116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE202004012678U Expired - Lifetime DE202004012678U1 (en) 2003-09-29 2004-08-13 Device for creating of fluid aerosol has valve for opening and closing of fluid feed and which is located directly before nozzle and periodically cycled in time intervals, whereby valve has opening and closing times in millisecond range

Country Status (1)

Country Link
DE (1) DE202004012678U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014154944A1 (en) * 2013-03-28 2014-10-02 Metso Minerals, Inc. Method, system and mineral material processing plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014154944A1 (en) * 2013-03-28 2014-10-02 Metso Minerals, Inc. Method, system and mineral material processing plant

Similar Documents

Publication Publication Date Title
DE102009041809B4 (en) Apparatus and method for frothing a liquid food, in particular milk
EP1656161B1 (en) Method for the distribution of liquid fragrances and device for carrying out said method
DE3128072A1 (en) TEST STAND FOR TESTING INJECTION NOZZLES
DE1476788A1 (en) Device for supplying liquid fuel in internal combustion engines, in particular gas turbines
DE19729101A1 (en) System for operating an internal combustion engine, in particular a motor vehicle
DE3935402C1 (en)
DE4134058A1 (en) PROPORTIONAL COMBUSTION CONTROL DEVICE
DE2704551A1 (en) TEMPERATURE CONTROL SYSTEM
DE10127289A1 (en) Fuel supply system derives second desired fuel flow rate value from first desired determined by control unit and selected so burner system is essentially supplied with first desired value
WO2013017488A1 (en) Device for spraying coolant in a metallurgical plant
EP1044724A2 (en) Method and apparatus for spraying workpieces
DE10356858B4 (en) Operating method for an actuator of an injection valve and associated device
DE202004012678U1 (en) Device for creating of fluid aerosol has valve for opening and closing of fluid feed and which is located directly before nozzle and periodically cycled in time intervals, whereby valve has opening and closing times in millisecond range
DE2808139A1 (en) Tempering gravity or pressure die casting mould prior to use - using heating source in vapour state which is passed through mould
CH637032A5 (en) DEVICE FOR MIXING SEVERAL FLOWABLE MEDIA.
DE10031852B4 (en) Device for spraying workpieces
EP0792694A2 (en) Process and device for controlling the flow of a fluidised powder from a container
EP3821985B1 (en) Agricultural spray valve unit, field spray device, agricultural application device and method for operating an agricultural valve unit
DE102013205588A1 (en) valve system
DE102012008941A1 (en) Method for regulating combustion of bio-oil in oil-fired boiler, involves detecting pressure and viscosity of fuel, and influencing pressure and viscosity of fuel under consideration of detected pressure and detected viscosity
EP2986186B1 (en) Method for controlling a hot-drink preparation appliance having controlled steam generation
DE102014211258A1 (en) Device for generating defined pressure profiles
DE102018007230A1 (en) Process for providing hot water with a variable dispensing temperature and vending machine for carrying out the process
DE102021105123B3 (en) Method for operating a cooking device and cooking device
DE102004007751B4 (en) Method and device for humidification

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20041125

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20070828

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20100908

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20120822

R071 Expiry of right