DE1407630A1 - Burner valve especially intended for lighters - Google Patents

Description

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PATENT LAWYERS

DR.-ING. BY KREISLER DR.-ING. SCh (ONWALD 1407630 DR. SIEBENEICHER DR.-ING. TH. MEYER DR. FUES

KDLN

R 31 135 ΙΙΙ / 44Ϊ) 8.11 _O 1961

IG / üt. / PL

HOlToOiI PRODUCTS LIMITED, a British Company of Winchester House, Old Broad Street, London, E.C. 2, England.

Burner valve especially intended for lighters.

The invention "relates to a burner valve which is shown in Lighters and other devices filled with liquefied petroleum gas are used to adjust the flame height.

The formation of known burner valves is relatively complicated because a fine adjustment of the flame height and it becomes necessary to absorb a substantial pressure drop; the construction also contains precision parts, which are adjusted over only small areas, so that they are expensive to manufacture. The well-known burner valves are also disadvantageous in that they are disproportionately wide and difficult to fit into To accommodate narrow lighters.

It is the object of the above invention to provide an improved burner valve - which is efficient works, is easily adjustable and reliable and can be manufactured relatively cheaply. The invention also relates to a burner valve which allows the size of the valve to be reduced.

j'js is provided according to the invention that in the new burner

909813/0034 BATH ORIGtNAt

valve, the fuel liquid inflow to it and thus the flame height can be changed by an adjustable pressure on a multi-part throttle device. The throttle device can have three disc-like, one above the other ^ arranged device parts, the outer parts of permeable, but the middle part of impermeable and elastic or flexible material are made and the superimposed parts are arranged in the valve so that the liquid flow initially in one permeable part outwards to its periphery, then around the periphery of the impermeable part and then inwards into the other permeable link and towards its center. In a further embodiment of the invention it is provided that the liquid is expediently fed centrally to one of the permeable parts and is discharged from the center of the other permeable part. If necessary, more than two of such permeable parts can be used, the corresponding other impermeable parts being provided with a central opening for the liquid.

Another embodiment of the invention provides an improved throttle device for a burner valve, wherein three disc-shaped superposed and interconnected parts of the throttle device are provided are, v / obei the outer parts are permeable and the middle part elastic and impermeable.

The burner valve can be provided with an additional throttle device, which is located between the liquid source and the adjustable, multi-part first throttle device is arranged and a predetermined setting during manufacture or assembly received to regulate the maximum flow of the liquid to the multi-part throttle device.

909813/0034

BATH ORIGINAL

U07630

The subject of the invention is explained with reference to the single drawing, which in a longitudinal section Represents valve that is suitable for a gas-filled cigarette lighter.

A main part of the valve "consists of the housing 1, which has a central bore 2, as well as an external thread 3> which on the wall of the liquid container attached and sealed with the help of a Zwisehenscheit> e or the like. 4 is sealed. The outer end 5 of the bore is widened and provided with screw thread in which the thread of a cylindrical collar 6 engages. Of the Collar 6 extends axially from a disk-shaped adjustment part 7. A tubular plunger 8 extends within this collar in the bore 2 of the housing 1 is tightly fitted and dependent of the part 7 axially displaceable in the bore. The inner end of the plunger 8 is with a part 9 for provides the re-entry of the liquid} the part 9 has a central opening 10. Within the Plunger 8, a pin 11 is movably arranged and extends through an opening of the adjusting member 7. Us v / eist an elastic or flexible one at the lower end Seal .. 12 on the opening 10 of the plunger rests and prevents the escape of the liquid through this opening when the (not shown) cap of the lighter is closed and the pin is pushing downwards. At the same time there is a spring, not shown located within the tubular plunger and pushing the pin upwardly so that the seal is brought at a distance from his seat and allowed the escape of liquid gas if the Lighter cap is open. The bore 2 is provided at the lower end with a shoulder 13, which is a middle Opening on v / eist, and between the end of the bore and the

The multi-part throttle device is also available

arranges. The device has two disks 14 and 15 made of permeable material, e.g. as a wick, these parts being replaced by a further disk 16 made of elastic or flexible and impermeable material such as rubber, rubber-like material, plastic ο. like., are separated. The sandwich-like device formed by the three disks fits snugly into the bore. The liquid flowing in through the opening in the shoulder 13 becomes radially outward through the permeable Disc 15 passed, goes around the circumference of the impermeable disc 16 and then radially in-wärta through the permeable disk 14. From here it passes into the interior of the plunger 8 through the opening 10. If the adjustment part 7 is rotated, the pressure of the plunger 8 on this throttle device can be changed and the amount of liquid flow through each of the transparent disks is thus adjusted.

In order to prevent the liquid from leaking through the tolerance space formed between the plunger and the housing 1, an annular sealing ring 17 is provided between the lower end of the plunger and the housing.

If further fine adjustment of the liquid flow is desired, the throttle device can do more than have two permeable discs, which are arranged in a sheet-like manner between permeable discs, and in in this case the respective impermeable panes are provided with a central opening so that the liquid arriving from the center of one of the permeable discs to the center of the next permeable disc can flow.

However, if too many of these washers are used, the following must be observed:

909813/0034

The movement of the plunger required to achieve the desired compression of each of the disks perform to regulate the flow of liquid becomes excessively large and leads to difficulties in construction, if the "range of rotation of the setting member 7 (which is usually the case) is slightly less than is one revolution.

The multi-part throttle device according to the invention, may have permeable, disc-like parts made of wick or similar permeable material can exist, while on the other hand the impermeable and elastic or resilient, disk-like part, preferably made of rubber or rubber-like material and it is advantageous to combine the three parts to connect so that they represent a single elastic, sandwich-like element. The elasticity or compliance of the impermeable part is important for the correct operation of the valve to ensure. Namely, it has been found that if v / o this part was not elastic, the Resilience or elasticity of the other parts of the throttle device is not always sufficient to ensure that the upper surface of the throttle device follows the movement of the plunger 8. However, it is Contact between the throttle device and the plunger interrupted, small droplets of the Liquefied gas reach the burner and cause an unsteady burning flame, according to the invention this will Disadvantage avoided by increased flexibility or elasticity in the impermeable throttle part.

In some cases, especially then, we% an inherently gaseous one Medium, but is used in the liquid phase, it is advisable to use a larger control or To provide an adjustment facility for the flow of liquid to the burner. A corresponding embodiment is shown schematically in the drawing. It is pre

90981 3/0034

H07630

see that the liquid & i * flow from the liquid container to the housing 1 through a preset second throttle device is monitored, ^ this second device consists of a tape, a cord or the like, made of permeable Material 18, made of e.g. wick, one part of which is between the surface of the lower housing part and the surface of a stamp 19 or the like. Is clamped, the stamp being pressed against the wick and the latter Contact pressure is predetermined by the type of manufacture. Because the middle opening in paragraph 13 in the housing 1 is formed in that surface which faces the wick 18 and the surface of the stamp 19 is, the influence of fluid in the opening is predetermined by the pressure of the stamp against the wick 18.

The inner end of the housing 1, as shown, is expediently provided with an extension 20 in which the stamp o. The like. 19 is housed. The extension may be formed after the punch is inserted at the predetermined position.

It can be seen that this pre-setting, which is taken into account during manufacture, the setting dos pressure drop is considerably reduced by the first throttle device in relation to the setting limits can be and that at the same time by the proposal according to the invention, two or more at the same time Arranging adjustable throttle devices one behind the other in the fluid path is a more refined setting the flame height is made possible. Compared to a single adjustable throttle device, this Proposal achieved for the first time that the implementation of each individual throttle device can be simplified can and the valve is cheaper to manufacture. In addition, the new design of the throttle device leads for dimensional reduction of the valve, which is considerable compared to the known valves of this type is. 909813/0034

Claims (8)

140763Θ claims 1. Burner valve for a device filled with liquefied gas, in particular a lighter, wherein the liquid flow to the burner valve and thus the flame height is adjustable, characterized in that a multi-part, continuously variable pressure exposed throttle device is provided, which is at least three on top of each other to adjust the flame height arranged, disk-like throttle parts (H, 15, 16), the outer parts (H, 15) being made of a permeable material, a middle part (16) being made of an impermeable and elastic or flexible material, and that these parts ( H ₅ 15, 16) are arranged in the valve so that the flow of liquid in the harvest-permeable part (15) outwards towards the periphery of this part (15), then around the periphery of the impermeable part (16) and further into the other permeable part (H) and inwards towards its center, 2. Burner valve according to claim 1, characterized in that a plurality of one above the other in the throttle device and alternately arranged permeable and impermeable disc-shaped parts are present, wherein the alternately arranged permeable parts are provided with a central opening so that the liquid s flow from the center of a permeable part to the lutte aes next permeable part takes place. 3. Burner valve according to claim 1 or 2, characterized in that : i: -. ii a ie permeable and impermeable disc-shaped eila ;; or throttle device interconnected are. 909813/0034 BATH 4. Burner valve according to one of claims 1 to 3 »thereby characterized in that it has a further, between the liquid source and the first throttle device arranged second throttle device having a predetermined setting so that the Maximum flow rate of the liquid to the former Device (14, 15, 16) is predetermined. 5. Burner valve according to one of claims 1 to 4, characterized in that the multi-part throttle device (14, 15, 1.6) is arranged at the end of a bore (2) arranged in the housing (1) that the one Pressure on this device exerting plunger (8) is movable, and that both the housing (1) and the plunger (8) are provided with openings for the entry and exit of the liquid through the throttle device. 6. Burner valve according to claim 5, characterized in that the opening (at 13) into the housing through a prestressed permeable part is covered. 7. Burner valve according to claim 6, characterized in that this permeable part (18) between a Housing surface and a stamp, a sprue, approach, stop o. The like. (19) is attached, which in a Housing extension (20) is present and is biased in the direction of the housing such that the permeable Partly deformed by this pre-tensioning of the attachment or the like (19) occurring during valve manufacture is. 8. Burner valve according to one of claims 1 to 7, characterized in that at least three throttle devices are present in the liquid path from the liquid source to the burner, the first being the Device adjacent to the liquid source 90981 3/0034 _ 9 - has correct setting, so that a predetermined maximum flame height is given, and that the other Throttle devices are adjustable and can be adjusted at the same time by adjusting parts known per se. 909813/0034