EP0517703B1 - Appareil de soins capillaires a gaz possedant au moins deux vaporisateurs - Google Patents

Appareil de soins capillaires a gaz possedant au moins deux vaporisateurs Download PDF

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Publication number
EP0517703B1
EP0517703B1 EP91901283A EP91901283A EP0517703B1 EP 0517703 B1 EP0517703 B1 EP 0517703B1 EP 91901283 A EP91901283 A EP 91901283A EP 91901283 A EP91901283 A EP 91901283A EP 0517703 B1 EP0517703 B1 EP 0517703B1
Authority
EP
European Patent Office
Prior art keywords
gas
appliance
heating
phase
intermediate container
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
EP91901283A
Other languages
German (de)
English (en)
Other versions
EP0517703A1 (fr
Inventor
Jiri Dr. Sobota
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.)
Braun GmbH
Original Assignee
Braun 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 Braun GmbH filed Critical Braun GmbH
Publication of EP0517703A1 publication Critical patent/EP0517703A1/fr
Application granted granted Critical
Publication of EP0517703B1 publication Critical patent/EP0517703B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 relates to a gas powered; Hair care device with at least two evaporators.
  • EP 0 420 768 A1 describes a gas-operated device with a container for holding liquefied gas, in which the gas supply is determined by connecting at least two throttles in series and an intermediate container of a predetermined volume is arranged between the throttles, the second throttle in the flow direction has approximately the same or higher permeability as the first throttle and the volume of the intermediate container is determined by the duration of the heating phase.
  • this device is not operated by the catalytic combustion of a fuel-air mixture.
  • a gas-heated curling iron with a bimetallic temperature controller which controls a corresponding valve and thereby ensures that more gas is made available to the burner in a shorter time unit than when the desired one has been reached Operating temperature is required.
  • temperature regulators work satisfactorily, they 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 carried out by the temperature controller.
  • 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.
  • This measure allows more gas to 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 is required after the operating temperature of the heater has been reached.
  • 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 essentially determined by the first throttle for high gas throughput, but rather by connecting the at least two or even 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 choke is equal to or higher than that of the first choke.
  • Such a device can be used in particular in devices which are operated with catalytic combustion and in which a constant temperature or a constant heating output is desired.
  • the two throttles are designed as evaporators, the first evaporator at the outlet opening of the first container and the second evaporator at the outlet opening of the intermediate container connected.
  • the intermediate container is dimensioned in such a way that, before use of the device, approximately the amount of liquefied petroleum gas required to deliver 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. Before the start-up phase, liquefied petroleum gas can accumulate in the intermediate container until there is approximately the same pressure level in both containers.
  • 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.
  • the gas accumulated 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 has already been described in detail in US Pat. No. 4,354,482, the disclosure of which is part of this application by express reference.
  • a line 10 connects to the outlet opening 9 of the intermediate container 3, in which a second evaporator 5 is provided, the flow rate of which is preferably approximately equal to or greater than the flow rate of the first evaporator 2.
  • a nozzle 6 is located behind the evaporator 5 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 has to be started with a higher output. This is advantageously achieved by providing the burner with more fuel in a short time unit in the heating-up phase than is required 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 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 exceed the permissible level (see curve C in FIG. 2). Operation with constant heating output is shown by curve A.
  • the intermediate container 3 with an additional storage volume is provided behind the first evaporator 2 and 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 also 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 thus be achieved without the need for complex and thus expensive temperature control or additional temperature control.

Landscapes

  • Feeding And Controlling Fuel (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cosmetics (AREA)

Claims (7)

  1. Appareil pour des besoins personnels, comportant un dispositif pour la combustion catalytique d'un mélange de combustible et d'air et un récipient (1) pour recevoir du gaz liquéfié, dans lequel l'alimentation en gaz est déterminée par un montage de l'un derrière l'autre d'au moins deux étranglements (5, 2) et dans lequel est agencé entre les étranglements (5, 2) un récipient intermédiaire (3) d'un volume prédéterminé, le deuxième étranglement (5), dans le sens d'écoulement, présentant une capacité de passage approximativement égale ou supérieure à celle du premier étranglement (2) et le volume du récipient intermédiaire (3) étant déterminé par la durée de la phase de chauffage (phase I).
  2. Appareil suivant la revendication 1, caractérisé en ce que les deux étranglements sont réalisés, d'une manière connue en soi, sous la forme d'évaporateurs (2, 5).
  3. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que l'orifice de sortie (9) du récipient intermédiaire (3) peut être fermé par un dispositif de fermeture qui peut être commandé.
  4. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la capacité du réservoir intermédiaire (3) correspond approximativement à la quantité de gaz liquide qui est nécessaire pour un chauffage du dispositif de chauffage jusqu'à une température de consigne de fonctionnement.
  5. Appareil suivant l'une des revendications précédentes, caractérisé en ce que la capacité de passage du premier évaporateur (2) est déterminée essentiellement par le besoin en gaz pendant une phase stationnaire (phase III).
  6. Appareil suivant l'une des revendications précédentes, caractérisé en ce que la capacité de passage du second évaporateur (5) est déterminée par le besoin en combustible pendant la phase de chauffage (phase I).
  7. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que plusieurs étranglements sont montés l'un derrière l'autre, avec interposition de récipients.
EP91901283A 1990-02-27 1990-12-19 Appareil de soins capillaires a gaz possedant au moins deux vaporisateurs Expired - Lifetime EP0517703B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4006135A DE4006135A1 (de) 1990-02-27 1990-02-27 Gasbetriebenes haarpflegegeraet mit wenigstens zwei verdampfern
DE4006135 1990-02-27
PCT/EP1990/002241 WO1991012746A1 (fr) 1990-02-27 1990-12-19 Appareil de soins capillaires a gaz possedant au moins deux vaporisateurs

Publications (2)

Publication Number Publication Date
EP0517703A1 EP0517703A1 (fr) 1992-12-16
EP0517703B1 true EP0517703B1 (fr) 1994-10-19

Family

ID=6401056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91901283A Expired - Lifetime EP0517703B1 (fr) 1990-02-27 1990-12-19 Appareil de soins capillaires a gaz possedant au moins deux vaporisateurs

Country Status (4)

Country Link
EP (1) EP0517703B1 (fr)
AT (1) ATE112942T1 (fr)
DE (2) DE4006135A1 (fr)
WO (1) WO1991012746A1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
WO1991012746A1 (fr) 1991-09-05
DE4006135A1 (de) 1991-09-05
ATE112942T1 (de) 1994-11-15
DE59007529D1 (de) 1994-11-24
EP0517703A1 (fr) 1992-12-16
DE4006135C2 (fr) 1991-12-12

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