EP0517703A1 - Gas-operated hair care appliance with at least two vaporizers. - Google Patents
Gas-operated hair care appliance with at least two vaporizers.Info
- Publication number
- EP0517703A1 EP0517703A1 EP91901283A EP91901283A EP0517703A1 EP 0517703 A1 EP0517703 A1 EP 0517703A1 EP 91901283 A EP91901283 A EP 91901283A EP 91901283 A EP91901283 A EP 91901283A EP 0517703 A1 EP0517703 A1 EP 0517703A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- phase
- gas
- heating
- intermediate container
- evaporator
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
Definitions
- the invention is based on a device for personal use with a container for holding liquefied gas, the gas supply being determined by connecting at least two throttles in series.
- the object of the invention is to reduce the heating-up time of the devices mentioned at the outset and to avoid overheating of the device using simple structural means without temperature control. This object is achieved by a device with the features of claim 1.
- the burner is supplied with fuel in the desired manner without the need for regulating or control means and the temperature profile in the starting phase is controlled without a temperature controller in such a way that the burner has reached its operating temperature after a very short time.
- the gas supply is no longer determined essentially by the first throttle for high gas throughput, but rather by connecting the at least two or more throttles in series.
- the volume of the intermediate container is determined by the duration of the heating phase, the flow rate of the gas being determined by the permeability of the two throttles.
- the permeability of the second throttle is equal to or higher than that of the first throttle.
- Such a device can be used in particular, but not exclusively, in devices which are operated with catalytic combustion or with an open gas flame and in which a constant temperature or a constant heating output is desired.
- the two throttles are designed as evaporators, the first evaporator being connected to the outlet opening of the first container and the second evaporator being connected to the outlet opening of the intermediate container.
- the intermediate container is dimensioned in such a way that, before use of the device, approximately the amount of liquefied gas that accumulates to give off the required heat output during the heating phase accumulates in it.
- the second evaporator is provided between the intermediate container and a nozzle to which the heater is connected.
- liquid gas can accumulate in the intermediate container until the pressure level in both containers is approximately the same. After opening the closure device, a large amount of gas can be used to burn the heater from the intermediate container in a relatively short time drain, with additional fuel flowing from the first container due to the pressure difference between the containers. As soon as the steady state has been reached and the heating has reached its operating temperature, a gas flow is established which corresponds to the flow resistance of the series connection of the two evaporators.
- the dimensioning of the permeability of the evaporators and the volume of the intermediate container is determined by the duration of the heating phase and the required heat output.
- Fig. 1 is a schematic representation of the container for the
- Fig. 2 shows a temperature profile over the heating-up time of a gas-operated heater
- Fig. 3 shows the fuel consumption of the gas-operated burner in the heating-up phase of the heater and after reaching the
- 1 denotes a container of a device for personal use, not shown in the drawing for the sake of simplicity, which can be, for example, a gas curling iron with a gas-operated burner for a heater.
- the container 1 serves to hold liquid gas, which is fed via a first evaporator 2 in a line 4 to an intermediate container 3 with a smaller capacity.
- An outlet opening 9 of the intermediate container 3 can be closed via a closure device or a valve 7. If the device is not in use, the outlet opening 9 is closed by means of the valve 7. closed.
- the gas collected in liquid or gaseous form in the intermediate container 3 cannot flow out to a downstream burner, which is used to operate a heater, not shown.
- a burner is already described in detail in US-A 4354482, the disclosure content of which is part of this application by express reference.
- a line 10, in which a second evaporator 5 is provided connects to the outlet opening 9 of the intermediate container 3, the flow rate of which is preferably approximately equal to or greater than the flow rate of the first evaporator 2.
- a nozzle is located behind the evaporator 5 6, via which a burner can be supplied with fuel in gaseous form, which in turn operates a heater. It is also readily possible to arrange the valve 7 downstream of the evaporator 5 without leaving the scope of the invention.
- heating In order to achieve a short heating-up time, heating must initially be carried out with a higher output. This is advantageously achieved by providing the burner with more fuel in a short time unit in the heating phase than is necessary after the operating temperature has been reached.
- the fuel consumption of a burner with regulated fuel supply results in the heating phase from the course of curve D in phase I according to FIG. 3.
- the heating output is designed to meet the requirement that a surface to be heated remain steady, the temperature rises according to a transition function according to the following formula:
- V is a gain factor
- T corresponds to the time constant
- t represents the time coordinate
- the heating power is designed for the heating-up phase.
- the heating power must be reduced by means of a temperature controller or a control, since otherwise the temperature would rise above the permissible level (see curve C in FIG. 2). Operation with constant heating power is shown by curve A.
- the intermediate container 3 is provided behind the first evaporator 2 with an additional storage volume, which accumulates fuel in front of the valve 7 until it is opened. If the valve 7 is opened during start-up, then the second evaporator 5 essentially determines the flow rate of the fuel from the nozzle 6 (see phase I in FIG. 3). The second evaporator 5 determines the flow rate until the intermediate container 3 no longer contains liquid gas (see phase II). In phase II, the pressure in the intermediate container 3 gradually drops, as a result of which the amount of fuel emerging from the nozzle 6 is reduced. In phase III the flow rate then arises which corresponds to the series connection of the flow resistances of the two evaporators 2, 5.
- phase III the temperature and the amount of fuel flowing out of the nozzle 6 remain essentially constant.
- a faster reaching of the target temperature can be achieved without the need for complex and thus expensive temperature control or additional temperature control.
- the choice of the materials to be used for the evaporators and containers is known from the prior art, for example for gas lighters. The person skilled in the art is thus able to make an appropriate selection.
- Several evaporators with corresponding intermediate containers can also be connected in series in order to ensure a more precise adaptation to the special requirements. This does not leave the scope of the invention.
Landscapes
- Feeding And Controlling Fuel (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Cosmetics (AREA)
Abstract
A gas-operated consumer appliance has a container (1) for liquefied gas which is fed in a gaseous phase through an intermediate container (3) to a heater by means of at least two vaporizers (2, 5). The burner is therefore rapidly supplied with much more fuel in the heating phase than in the stationary phase; as a result, the heating phase is shortened.
Description
Gasbetriebenes Haarpflegegerät mit wenigstens zwei VerdampfernGas powered hair care device with at least two evaporators
Die Erfindung geht aus von einem Gerät für den persönlichen Bedarf mit einem Behälter zur Aufnahme von verflüssigtem Gas, wobei die Gaszufuhr durch eine Hintereinanderschaltung von wenigstens zwei Drosseln bestimmt wird.The invention is based on a device for personal use with a container for holding liquefied gas, the gas supply being determined by connecting at least two throttles in series.
Aus der US 4354482 A ist bereits ein derartiges Gerät mit einem Bimetall-Temperaturregler bekannt, der ein entsprechendes Ventil steuert und dadurch sichergestellt, daß in der Aufheizphase dem Brenner in kürzerer Zeiteinheit mehr Gas zur Verfügung gestellt wird, als nach Erreichung der gewünschten Betriebstemperatur er¬ forderlich ist. Derartige Temperaturregler arbeiten zwar zufrie¬ denstellend, sind jedoch aufwendig und teuer. Da die Heizleistung für die Aufheizphase ausgelegt ist, benötigen die Geräte in der Regel zusätzlich einen Übertemperaturschutz, der sie ebenfalls verteuert. Eine besondere Bedeutung hinsichtlich einer Steuerung der Gaszufuhr kommt den beiden Drosseln dieses bekannten Gerätes nicht zu. Die Steuerung der Gaszufuhr wird gerade durch den Tempe¬ raturregler bewerkstelligt.From US 4354482 A such a device with a bimetal temperature controller is already known, which controls a corresponding valve and thereby ensures that more gas is made available to the burner in a shorter time unit in the heating phase than when the desired operating temperature is reached is required. Such temperature regulators work satisfactorily, but are complex and expensive. Since the heating power is designed for the heating phase, the devices usually require additional overtemperature protection, which also makes them more expensive. The two throttles of this known device are not particularly important with regard to controlling the gas supply. The control of the gas supply is currently being accomplished by the temperature controller.
Der Erfindung liegt die Aufgabe zugrunde mit einfachen baulichen Mitteln ohne eine Temperaturregelung die Aufheizzeitdauer der ein¬ gangs erwähnten Geräte zu verkürzen und eine Überhitzung des Ge¬ rätes zu vermeiden. Diese Aufgabe wird durch ein Gerät mit den Merkmalen des Anspruchs 1 gelöst.The object of the invention is to reduce the heating-up time of the devices mentioned at the outset and to avoid overheating of the device using simple structural means without temperature control. This object is achieved by a device with the features of claim 1.
Durch diese Maßnahme kann in der Startphase bzw. in der Aufheiz¬ phase des Gerätes dem Brenner in der gleichen Zeiteinheit mehr Gas zur Verfügung gestellt werden, als nach Erreichen der Betriebs-
temperatur der Heizung erforderlich ist. Auf diese Weise wird der Brenner ohne Aufwand an Regel- oder Steuermitteln in der gewünsch¬ ten Weise mit Brennstoff versorgt und der Temperaturverlauf in der Startphase ohne Temperaturregler derart gesteuert, daß der Brenner nach sehr kurzer Zeit seine Betriebstemperatur erreicht hat. Hat der Brenner seine Betriebstemperatur bzw. seine Solltemperatur er¬ reicht, wird die Gaszufuhr nicht mehr im wesentlichen durch die erste Drossel für großen Gasdurchsatz, sondern über eine Hinterei¬ nanderschaltung der wenigstens zwei oder auch mehr Drosse n be¬ stimmt. Das Volumen des Zwischenbehälters wird durch die Dauer der Aufheizphase festgelegt, wobei die Durchflußmenge des Gases von der Durchlässigkeit der beiden Drosseln bestimmt wird. Die Durch¬ lässigkeit der zweiten Drossel ist gleich oder höher als die der ersten Drossel .As a result of this measure, more gas can be made available to the burner in the same time unit in the start-up phase or in the heating-up phase of the device than after reaching the operating heating temperature is required. In this way, the burner is supplied with fuel in the desired manner without the need for regulating or control means and the temperature profile in the starting phase is controlled without a temperature controller in such a way that the burner has reached its operating temperature after a very short time. When the burner has reached its operating temperature or its target temperature, the gas supply is no longer determined essentially by the first throttle for high gas throughput, but rather by connecting the at least two or more throttles in series. The volume of the intermediate container is determined by the duration of the heating phase, the flow rate of the gas being determined by the permeability of the two throttles. The permeability of the second throttle is equal to or higher than that of the first throttle.
Eine derartige Einrichtung läßt sich insbesondere, aber nicht aus¬ schließlich, bei solchen Geräten einsetzen, die mit katalytischer Verbrennung oder mit offener Gasflamme betrieben werden und bei denen eine konstante Temperatur bzw. eine konstante Heizleistung gewünscht wird. Hierzu ist es vorteilhaft, daß die beiden Drosseln als Verdampfer ausgebildet sind, wobei der erste Verdampfer an die Auslaßöffnung des ersten Behälters und der zweite Verdampfer an die Auslaßöffnung des Zwischenbehälters angeschlossen ist. Der Zwischenbehälter ist dabei so dimensioniert, daß sich in ihm vor der Benutzung des Geräts in etwa diejenige Flüssiggasmenge an¬ sammelt, die zur Abgabe der erforderlichen Wärmeleistung während der Aufheizphase erforderlich ist. Außerdem ist es vorteilhaft, daß der zweite Verdampfer zwischen dem Zwischenbehälter und einer Düse vorgesehen ist, an die sich die Heizung anschließt. Vor der Startphase kann sich in dem Zwischenbehälter Flüssiggas ansammeln, bis in beiden Behältern ein in etwa gleiches Druckniveau herrscht. Nach Öffnen der Verschlußeinrichtung kann aus dem Zwischenbehälter in relativ kurzer Zeit eine große Gasmenge zum Brenner der Heizung
abfließen, wobei zusätzlich aus dem ersten Behäl cer Brennstoff aufgrund der entstehenden Druckdifferenz zwischen den Behältern nachfließt. Sobald der Beharrungszustand erreicht worden ist und die Heizung ihre Betriebstemperatur erreicht hat, stellt sich ein Gasdurchfluß ein, der dem Strömungswiderstand der Hintereinander¬ schaltung beider Verdampfer entspricht.Such a device can be used in particular, but not exclusively, in devices which are operated with catalytic combustion or with an open gas flame and in which a constant temperature or a constant heating output is desired. For this purpose, it is advantageous that the two throttles are designed as evaporators, the first evaporator being connected to the outlet opening of the first container and the second evaporator being connected to the outlet opening of the intermediate container. The intermediate container is dimensioned in such a way that, before use of the device, approximately the amount of liquefied gas that accumulates to give off the required heat output during the heating phase accumulates in it. It is also advantageous that the second evaporator is provided between the intermediate container and a nozzle to which the heater is connected. Before the start-up phase, liquid gas can accumulate in the intermediate container until the pressure level in both containers is approximately the same. After opening the closure device, a large amount of gas can be used to burn the heater from the intermediate container in a relatively short time drain, with additional fuel flowing from the first container due to the pressure difference between the containers. As soon as the steady state has been reached and the heating has reached its operating temperature, a gas flow is established which corresponds to the flow resistance of the series connection of the two evaporators.
Die Dimensionierung der Durchlässigkeit der Verdampfer und des Volumens des Zwischenbehälters wird durch die Dauer der Aufheiz- phase und die erforderliche Wärmeleistung bestimmt. Weitere Vor¬ teile ergeben sich aus der nachfolgenden Beschreibung und den Zeichnungen, in denen ein bevorzugtes Ausführungsbeispiel darge¬ stellt ist. Es zeigen:The dimensioning of the permeability of the evaporators and the volume of the intermediate container is determined by the duration of the heating phase and the required heat output. Further advantages result from the following description and the drawings, in which a preferred exemplary embodiment is shown. Show it:
Fig. 1 eine schematische Darstellung der Behälter für denFig. 1 is a schematic representation of the container for the
Brennstoff, wobei der Zwischenbehälter zwischen zweiFuel, the intermediate container between two
Verdampfern angeordnet ist, Fig. 2 einen Temperaturverlauf über die Aufheizzeit einer gasbetriebenen Heizung, Fig. 3 den Brennstoffverbrauch des gasbetriebenen Brenners in der Aufheizphase der Heizung und nach Erreichung derEvaporators is arranged, Fig. 2 shows a temperature profile over the heating-up time of a gas-operated heater, Fig. 3 shows the fuel consumption of the gas-operated burner in the heating-up phase of the heater and after reaching the
Betriebstemperatur.Operating temperatur.
In der Zeichnung ist mit 1 ein Behälter eines in der Zeichnung der Einfachheit halber nicht dargestellten Gerätes für den persönli¬ chen Bedarf bezeichnet, das beispielsweise ein Gaslockenstab mit einem gasbetriebenen Brenner für eine Heizung sein kann. Der Be¬ hälter 1 dient zur Aufnahme von Flüssiggas, das über einen ersten Verdampfer 2 in einer Leitung 4 einem Zwischenbehälter 3 mit klei¬ nerem Fassungsvermögen zugeführt wird. Eine Auslaßöffnung 9 des Zwischenbehälters 3 ist über eine Verschlußeinrichtung bzw. ein Ventil 7 verschließbar. Befindet sich das Gerät nicht im Arbeits¬ einsatz, so ist die Auslaßöffnung 9 mittels des Ventils 7 ver-
schlössen. Das in dem Zwischenbehälter 3 in flüssiger bzw. in gas¬ förmiger Form angesammelte Gas kann nicht zu einem nachgeschalte¬ ten Brenner abfließen, der zum Betrieb einer nicht dargestellten Heizung dient. Ein derartiger Brenner ist bereits im Detail in der US-A 4354482 beschrieben, deren Offenbarungsgehalt durch aus¬ drücklichen Hinweis Bestandteil dieser Anmeldung ist.In the drawing, 1 denotes a container of a device for personal use, not shown in the drawing for the sake of simplicity, which can be, for example, a gas curling iron with a gas-operated burner for a heater. The container 1 serves to hold liquid gas, which is fed via a first evaporator 2 in a line 4 to an intermediate container 3 with a smaller capacity. An outlet opening 9 of the intermediate container 3 can be closed via a closure device or a valve 7. If the device is not in use, the outlet opening 9 is closed by means of the valve 7. closed. The gas collected in liquid or gaseous form in the intermediate container 3 cannot flow out to a downstream burner, which is used to operate a heater, not shown. Such a burner is already described in detail in US-A 4354482, the disclosure content of which is part of this application by express reference.
An die Auslaßöffnung 9 des Zwischenbehälters 3 schließt sich eine Leitung 10 an, in der ein zweiter Verdampfer 5 vorgesehen, ist, dessen Durchflußrate vorzugsweise in etwa gleich oder größer ist als die Durchflußrate des ersten Verdampfers 2. Hinter dem Ver¬ dampfer 5 sitzt eine Düse 6, über die ein Brenner mit Brennstoff in gasförmiger Form versorgt werden kann, der wiederum eine Hei¬ zung betreibt. Es ist auch ohne weiteres möglich, das Ventil 7 stromabwärts des Verdampfers 5 anzuordnen, ohne den Rahmen der Er¬ findung zu verlassen.A line 10, in which a second evaporator 5 is provided , connects to the outlet opening 9 of the intermediate container 3, the flow rate of which is preferably approximately equal to or greater than the flow rate of the first evaporator 2. A nozzle is located behind the evaporator 5 6, via which a burner can be supplied with fuel in gaseous form, which in turn operates a heater. It is also readily possible to arrange the valve 7 downstream of the evaporator 5 without leaving the scope of the invention.
Um eine kurze Aufheizzeit zu erzielen, muß anfangs mit einer höhe¬ ren Leistung geheizt werden. Dies wird in vorteilhafter Weise da¬ durch erreicht, daß in der Aufheizphase dem Brenner in kurzer Zeiteinheit mehr Brennstoff zur Verfügung gestellt wird, als nach Erreichung der Betriebstemperatur erforderlich ist. Der Brenn¬ stoffverbrauch eines Brenners mit geregelter BrennstoffVersorgung ergibt sich in der Aufheizphase aus dem Verlauf der Kurve D in der Phase I gemäß Fig.3.In order to achieve a short heating-up time, heating must initially be carried out with a higher output. This is advantageously achieved by providing the burner with more fuel in a short time unit in the heating phase than is necessary after the operating temperature has been reached. The fuel consumption of a burner with regulated fuel supply results in the heating phase from the course of curve D in phase I according to FIG. 3.
Wenn die Heizleistung auf die Anforderung im Beharrungszustand einer zu beheizenden Fläche ausgelegt wird, steigt die Temperatur nach einer Übergangsfunktion gemäß folgender Formel:If the heating output is designed to meet the requirement that a surface to be heated remain steady, the temperature rises according to a transition function according to the following formula:
x = V ( 1- e_t /T )x = V (1- e _t / T)
V ist ein Verstärkungsfaktor, T entspricht der Zeitkonstante und t gibt die Zeitkoordinate wieder. Hieraus folgt für den Aufheizvor-
gang mit konstanter Heizleistung, daß nach der Zeit t=T etwa 63% der Solltemperatur und nach der Zeit t=3T etwa 95% der Solltempe¬ ratur erreicht werden.V is a gain factor, T corresponds to the time constant and t represents the time coordinate. From this follows for the preheating course with constant heating power that after the time t = T about 63% of the target temperature and after the time t = 3T about 95% of the target temperature are reached.
Um also eine kurze Aufheizphase zu erzielen, wird die Heizleistung für die Aufheizphase ausgelegt. Bei herkömmlichen Geräten muß die Heizleistung mittels eines Temperaturreglers oder einer Steuerung reduziert werden, da sonst die Temperatur über das zulässige Maß hinaussteigen würde (vergl. Kurve C in Fig. 2). Der Betrieb bei konstanter Heizleistung ist durch den Kurvenverlauf A wiederge¬ geben.In order to achieve a short heating-up phase, the heating power is designed for the heating-up phase. In conventional devices, the heating power must be reduced by means of a temperature controller or a control, since otherwise the temperature would rise above the permissible level (see curve C in FIG. 2). Operation with constant heating power is shown by curve A.
Um einen Temperaturverlauf gemäß der Kurve B ohne aufwendigen Steuer- oder Regelaufwand zu erzielen, ist hinter dem ersten Ver¬ dampfer 2 der Zwischenbehälter 3 mit einem zusätzlichen Speicher¬ volumen vorgesehen, der vor dem Ventil 7, bis es geöffnet wird, Brennstoff ansammelt. Wird bei Inbetriebnahme das Ventil 7 geöff¬ net, dann bestimmt im wesentlichen der zweite Verdampfer 5 die Durchflußmenge des Brennstoffes aus der Düse 6 (vergl. Phase I in Fig. 3). Der zweite Verdampfer 5 bestimmt so lange die Durchflu߬ menge, bis der Zw schenbehälter 3 kein Flüssiggas mehr enthält (siehe Phase II). In der Phase II sinkt der Druck im Zwischenbe¬ hälter 3 allmählich ab, wodurch sich die aus der Düse 6 austreten¬ de Brennstoffmenge verringert. In der Phase III stellt sich dann der Durchfluß ein, der der Hintereinanderschaltung der Strömungs¬ widerstände der beiden Verdampfer 2, 5 entspricht. In der Phase III bleibt die Temperatur und auch die aus der Düse 6 strömende Brennstoffmenge im wesentlichen konstant. Mit dem zusätzlichen Fassungsvermögen aus dem Zwischenbehälter 3 kann also ein schnelleres Erreichen der Solltemperatur erzielt werden, ohne daß eine aufwendige und somit teuere Temperaturregelung bzw. zusätz¬ liche Temperatursteuerung eingesetzt werden müßte.
Die Wahl der einzusetzenden Materialien für die Verdampfer und Be¬ hälter ist aus dem Stand der Technik zum Beispiel für Gasfeuer¬ zeuge bekannt. Der Fachmann ist somit in die Lage versetzt, eine entsprechende Auswahl zu treffen. Es können auch mehrere Ver¬ dampfer mit entsprechenden Zwischenbehältern hintereinanderge- schaltet werden, um eine exaktere Anpassung an die speziellen Be¬ dürfnisse zu gewährle sten. Hierdurch wird der Rahmen der Erfin¬ dung nicht verlassen.
In order to achieve a temperature profile according to curve B without complex control effort, the intermediate container 3 is provided behind the first evaporator 2 with an additional storage volume, which accumulates fuel in front of the valve 7 until it is opened. If the valve 7 is opened during start-up, then the second evaporator 5 essentially determines the flow rate of the fuel from the nozzle 6 (see phase I in FIG. 3). The second evaporator 5 determines the flow rate until the intermediate container 3 no longer contains liquid gas (see phase II). In phase II, the pressure in the intermediate container 3 gradually drops, as a result of which the amount of fuel emerging from the nozzle 6 is reduced. In phase III the flow rate then arises which corresponds to the series connection of the flow resistances of the two evaporators 2, 5. In phase III, the temperature and the amount of fuel flowing out of the nozzle 6 remain essentially constant. With the additional capacity from the intermediate container 3, a faster reaching of the target temperature can be achieved without the need for complex and thus expensive temperature control or additional temperature control. The choice of the materials to be used for the evaporators and containers is known from the prior art, for example for gas lighters. The person skilled in the art is thus able to make an appropriate selection. Several evaporators with corresponding intermediate containers can also be connected in series in order to ensure a more precise adaptation to the special requirements. This does not leave the scope of the invention.
Claims
1. Gerät für den persönlichen Bedarf mit einem Behälter (1) zur Aufnahme von verflüssigtem Gas, wobei die Gaszufuhr durch eine Hintereinanderschaltung von wenigstens zwei Drosseln (5, 2) bestimmt wird, dadurch gekennzeichnet, daß zwischen den Drosseln (5, 2) ein Zwischenbehälter (3) eines vorgegebenen Volumens angeordnet ist, die in Strömungsrichtung zweite Drossel (5) eine in etwa gleiche oder höhere Durchlässigkeit aufweist als die erste Drossel (2) und das Volumen des Zwi¬ schenbehälters (3) durch die Dauer der Aufheizμnase (Phase I) festgelegt w rd.1. Device for personal use with a container (1) for holding liquefied gas, the gas supply being determined by a series connection of at least two throttles (5, 2), characterized in that between the throttles (5, 2) Intermediate container (3) of a predetermined volume is arranged, the second throttle (5) has approximately the same or higher permeability in the flow direction as the first throttle (2) and the volume of the intermediate container (3) by the duration of the heating nose (phase I) is fixed
2. Gerät nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Drosseln in an sich bekannter Weise als Verdampfer (2,5) aus¬ gebildet sind.2. Apparatus according to claim 1, characterized in that the two throttles are formed in a manner known per se as an evaporator (2.5).
3. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekenn¬ zeichnet, daß eine Auslaßöffnung (9) des Zwischenbehälters (3) über eine steuerbare Verschlußvorrichtung verschließbar ist.3. Device according to one of the preceding claims, characterized gekenn¬ characterized in that an outlet opening (9) of the intermediate container (3) can be closed via a controllable closure device.
4. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekenn¬ zeichnet, daß das Fassungsvermögen des Zwischenbehälters (3) in etwa der Flüssiggasmenge entspricht, die für ein Aufheizen der Heizung auf eine Sollbetriebstemperatur benötigt wird.4. Device according to one of the preceding claims, characterized gekenn¬ characterized in that the capacity of the intermediate container (3) corresponds approximately to the amount of liquid gas that is required for heating the heating to a target operating temperature.
5. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekenn¬ zeichnet, daß die Durchlässigkeit des ersten Verdampfers (2) im wesentlichen durch den Gasbedarf während uer stationären Phase (Phase III) festgelegt wird. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekenn¬ zeichnet, daß die Durchlässigkeit des zweiten Verdampfers (5) durch den Brennstoffbedarf während der Aufheizphase (Phase I) festgelegt wird.5. Device according to one of the preceding claims, characterized gekenn¬ characterized in that the permeability of the first evaporator (2) is determined essentially by the gas requirement during the stationary phase (phase III). Device according to one of the preceding claims, characterized gekenn¬ characterized in that the permeability of the second evaporator (5) is determined by the fuel requirement during the heating phase (phase I).
Gerät nach einem der vorhergehenden Ansprüche, dadurch gekeπn- zeichnt, daß mehrere Drosseln unter Zwischenschaltung von Be¬ hältern hintereinandergeschaltet sind. Apparatus according to one of the preceding claims, characterized in that a plurality of throttles are connected in series with containers being interposed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4006135 | 1990-02-27 | ||
| DE4006135A DE4006135A1 (en) | 1990-02-27 | 1990-02-27 | GAS-POWERED HAIR CARE DEVICE WITH AT LEAST TWO EVAPORATORS |
| PCT/EP1990/002241 WO1991012746A1 (en) | 1990-02-27 | 1990-12-19 | Gas-operated hair car appliance with at least two vaporizers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0517703A1 true EP0517703A1 (en) | 1992-12-16 |
| EP0517703B1 EP0517703B1 (en) | 1994-10-19 |
Family
ID=6401056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91901283A Expired - Lifetime EP0517703B1 (en) | 1990-02-27 | 1990-12-19 | Gas-operated hair care appliance with at least two vaporizers |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0517703B1 (en) |
| AT (1) | ATE112942T1 (en) |
| DE (2) | DE4006135A1 (en) |
| WO (1) | WO1991012746A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327752A (en) * | 1979-12-05 | 1982-05-04 | Braun, Aktiengesellschaft | Rotary ignition system for a catalytically heated curling device |
-
1990
- 1990-02-27 DE DE4006135A patent/DE4006135A1/en active Granted
- 1990-12-19 DE DE59007529T patent/DE59007529D1/en not_active Expired - Fee Related
- 1990-12-19 EP EP91901283A patent/EP0517703B1/en not_active Expired - Lifetime
- 1990-12-19 AT AT91901283T patent/ATE112942T1/en not_active IP Right Cessation
- 1990-12-19 WO PCT/EP1990/002241 patent/WO1991012746A1/en active IP Right Grant
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9112746A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0517703B1 (en) | 1994-10-19 |
| DE4006135A1 (en) | 1991-09-05 |
| WO1991012746A1 (en) | 1991-09-05 |
| DE4006135C2 (en) | 1991-12-12 |
| ATE112942T1 (en) | 1994-11-15 |
| DE59007529D1 (en) | 1994-11-24 |
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