DE1425861A1 - Arrangement at the air and liquid supply of an atomizer - Google Patents

Description

J. y L * Cervello, S.E.G. (Öocieti Regulier

Collective;

Barcelona, Marques de Sentmenat, 14

Arrangement at the air and liquid supply

an atomizer

The invention is concerned with improving air and liquid supply pumping means to the mixing chamber of a manually operated atomizer, in which the mixture of air and liquid is in such a predetermined ratio and so regularly is expelled so that the atomization takes place under the most favorable working conditions »

Various types of atomizers are known which have a pump body, which acts as a plug a container is formed through whose

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Body an air compressor piston that slides when he passed an intermediate comb »in the sioh ein

AlDsorption bodies impregnated with liquid are located, the mixture of both elements duroh open a valve, the axis of which is also the axis of the air drive piston is, causes »in rest position this valve closes the connection between the container that contains the liquid to be atomized, and the chamber in which the impregnation of the absorbent body takes place. Inside this Absorbent bodies mix air and liquid. This mixture is directed to the outlet spout and there ejected in atomized form.

In the previously known atomizers of this type are observe the following major disadvantages. On the one hand it is necessary to reverse the atomizer Position to operate so that the liquid duroh the force of gravity impregnates the absorption body, the is located in the mixing chamber, and on the other hand this absorption body is too heavily impregnated, which can only be avoided by the inclusion of impregnation inhibiting or regulating agents

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can, without achieving sufficient success, because, because the in the container Liquid column acts by gravity and gradually falls, the action of gravity is not always the same, which has an irregular impregnation result, so that a liquid supply is not guaranteed in the correct proportion

In addition to these shortcomings, there is also the fact that the construction and assembly of the valve, the axis of which is also the axis of the piston of the air drive pump requires precise machining and adjustment, because the valve is driven by the spigot head itself, or through the common axis of said Piston formed and thus forced to check the exact mode of operation, which makes the series assembly considerably is difficult

The present invention brings a comprehensive and satisfactory solution of the listed defects · It is based on achieving a regular impregnation of the absorption body aligned with the liquid to be atomized, while avoiding a 8098 10/0033

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excessive impregnation and one possible Droplets in the closed state

Characteristic of the present invention is that Arrangement of a simultaneously acting but differentiated double pump with both pumps are arranged axially and separated from one another by the impregnation and mixing chambers. The upper The pump has the task of compressing the air, the amount of which is determined by the corresponding chamber, whose volume 30 is calculated that it is sufficient to on the one hand to guarantee an adequate mixture of air and liquid and on the other hand a Supply of compressed air to the interior of the second pump, which is located directly under the mixing chamber is located, so that through this second pump the liquid pumping and supply for the imprint » nation of the absorption body, which is housed in the intermediate chamber, is ensured, and in the normal position and not the other way around Position·

The essence of this invention is the 809810/0038 " ⁵ " arrangement

body is carried out. This is done by means of a capillary line running axially in the drive pin, the axis of which, which is set for low friction, slides through the bushing, which forms the bearing of the absorbent body to be impregnated. This axial capillary line opens laterally into a point which is at a certain height of the drive pin of the independent valve, so that the position of this line, during the upward and downward stroke of the pin, determines the regular and alternating encounter of the same with the absorption body, through which the pin passes and which only absorbs the liquid flowing through this line during this meeting. ^:

The impregnation of the absorption body is regulated and kept within limits. This makes it possible to reduce its dimensions and those of the chamber in which it is located. This will ■

preferably by an elongated cavity that ο i

^ * is located opposite the outlet nipple.

oo In doing so, the liquid is in successive

oo passages auroh the absorption body through the im Cones provided supply line supplied,

this second pump for the regular feeding of the absorption body, as well as in the use of the Piston of this second pump, which acts as a solenoid valve of the connecting line between the container, the contains the liquid and the chamber in which fiie impregnation is carried out, works, making the closing action of this valve independent from the common axis or the journal of the piston of the upper pump, so that this is from the Axis separated valve better soles and allows easier assembly.

According to the invention, the axis, which is at the same time the axis of the piston of the upper pump, acts only as a spigot that the independent valve in falling direction and this in turn acts as a piston of the lower suction pump · The closure this independent valve is more effective because of its shape in conjunction with the corresponding ' Foundation, and because your own drive means are available stand.

Another feature of the invention is that Way, tie the impregnation of the absorption »

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through which, when it passes through the absorbent body, the liquid flows practically alone, since it is in the other positions cannot flow because the closed position of the valve or the walls of the The guide bush and the elastic seal through which the pin slides prevent this. Only if at Downstroke the side supply line has exceeded the lower edge of this sleeve, the Fluid will flow through the line again, but then it will flow inside the body of the lower delivery pump above·

Further advantageous features emerge from the

in
Description of the drawing, which is an embodiment and not as a restrictive, a practical embodiment of the manually used nebulizer is shown, with the pumping devices for the air and liquid supply to the mixing chamber of the same, the independent closing valve for closing the interconnection line between the container and said chamber in which the absorption body is housed, which is passed through the supply line running on the drive shaft of said valve,

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which is also the piston of the suction pump, is impregnated

It shows

Pig · 1 - a longitudinal section of the entire atomizer in rest position,

Pig, Figure 2 - a partial view of that shown in Pig * 1 Atomizer in longitudinal section,

Pig. 3 _ a partial view of the atomizer in.

Longitudinal section, as in Fig. 2, but in a different operating position,

Pig · 4- - Another partial view in longitudinal section, as in Figs. 1 and 2, with a other training of the! "entils ·

According to Fig. 1, the pump body of the atomizer is small internally threaded sleeve -2-, the with the threaded neck -14- of the container is connected and forms a tersole plug,

ο whose body contains all the components of the pump

ο contains the device of the atomizer.

oo. '■■■' "■. ■ ■ -." '-

° The upper part of the sleeve -2- forms a cavity, in which the absorption body -3- is housed,

made of felt, or a correspondingly porous material and which is held in its upper part by a disk -4-, which is on the edge supports, which separates the storage room from the absorption body -3, whose disc -4- is constantly under the influence of a helical leather -5-.

The disk -4- is divided into segments, so that an unspecified tongue, which is a rope of the Absorbent body -3- represents, into which chamber -6- formed inside the pump body -1- can protrude · The The tongue is arranged in such a way that it can work together with the atomizer nozzle -19- - the one through the wall of the body -1- goes through and is directly connected to it

A connecting disk -7- is fitted inside the pump body -1- and is connected to a slidable one Piston -8- in connection with the compression piston

oo represents the air in the chamber -6-, co

o their maximum capacity due to the expansion of the screw

, _ shaped. Spring -5- is determined between, the oo

Connection washer -7- and the washer -4- are constantly below oo

a certain pressure stands · an axis -9- stands in

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their upper area and by means of a nut -11- with the piston -8- and the connecting disk -7- in connection, while they are at their opposite end a head piece -23- which acts like a buffer and the return of the axis when releasing the pressure on the piston -8- inhibits and at the same time when on the Piston a pressure is exerted, serves as a drive element, which causes the opening of the flap -13-, the valve of which at the same time is the piston that passes through the interior of the lower pump body -15- slides, its volume is much less than that of the upper chamber -6-, where the ratio of the capacity of the two 'chambers determines the corresponding liquid and air volumes, which pass through the same into the intermediate chamber in which the absorption body -3- is located.

The sleeve -2- represents an axial passage through which, guided and adjusted to low friction, the pin or «, the drive shaft -9- of the valve slides ·

The cavity for the storage of the absorption body -3- is reduced and preferably forms a channel which is located opposite the socket -19-

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The axial passage carried out in the bushing -2- widens in its inner part and forms a holding surface -24- in order to inhibit the return of the head piece -23- of the pin -9-. The valve -13-sits down and conforms to the hand or the mouth -22- of a cylindrical extension of the sleeve -2- in ·

The body -15- of the lower liquid feed pump, which is also the guide body of the valve piston -13- let, "extends in its upper part- and forms a shoulder that serves as a valve seat and works together with a cylindrical ring -16-, which is embedded in a circular equal channel, arranged in the lower part of the sleeve -2- which connects the body -15- and the bushing *

The body -15- rests and hangs concentrically within the container neck -14- · When the container is opened is - with the upper body -1- is removed - becomes the entire structure that is from the lower Body -15- and the sensor tube -18-, the same-

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pulled out early · In its lower half represents the body a tubular turned inside Part -17- in which the sensor tube -18-is fitted, with between the body -15- and the The tubular part -17- turned into an annular space remains free, into which the screw-shaped Spring -10- can store compressed that the. Actuates on valve -13- and holds it in its seat -22-, as soon as the head -23- of the drive pin -9- through Return of the same stops, no longer on the valve to act "

The inner section of the sensor tube -18- is dimensioned so that its diameter is in a certain ratio to the capacity of the suction chamber -15-

On the inner wall of the cylindrical body -15 »which forms the pump chamber, which is used to convey the liquid to the air-liquid mixing chamber in which the absorber body -3- is located, there are some vertical channels -20-20 ¹ - in ' appropriate height attached so that during a certain duration of the stroke of the valve piston -13- (according to FIG. 1 it has the shape of a spherical shell) between the 8098 10/0038 mentioned

Piece that works as a piston -13- and the walls of the pump body -15- some free passages arise, through which the pumping of the sucked-in liquid by the upward stroke of the piston -13-in the upper part of said piston happens ο

The valve piston -13- has a small cylindrical extension that goes into the turns of the helical Spring -10- penetrates, which constantly pushes the valve upwards to close the lock to the chamber in which the impregnation of the absorption body -3- takes place to ensure. "

The mode of operation of the pumping device arranged in this way is as follows »

By applying pressure - by means of axial pulsation - on the piston head -8-, the disk -7- works like it Piston and by overcoming the spring force of the helical spring -5- compression takes place

oo the air in the chamber -6-, the geco
<—>

_o inevitably the porous absorption body -3- ° must pass, in whose interior the mixture of

it takes place with the liquid which the oo

Absorbent body -3- impregnated, whereupon then

a rope of this mixture escapes through the atomizer nozzle -19- which is attached to the side and is in connection with the impregnated body ₀

light all compressed air coming out of the chamber -6- escapes through the spout -19-, a} (Deil of it happens the capillary -12-, which is mounted axially on the axis -9-. This subset occurs in the lateral Line -21- and is fed into the inside of the lower pump body -15-

Because the axis connected to the piston -8- or the pin -9- moves axially, the head -23- lowers and influences the valve piston -13-, which extends from the cylindrical seat -22- of the sleeve -2-separates. Since the pin and the valve piston -13- can slide freely so that no pressure arises, the compressed air, which comes from the axial capillary line provided on the Aohse -9-, passes between the wall of the chamber -15- = and && m piston - »13- existing tree and is sewn on its side by the downward stroke of the piston mentioned and through the Pühlerrohr -18« into the interior of the container

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directed. By, subsequent strokes of the piston -7- and -13- when acting on the piston -8-, an overpressure is created above the liquid level in the container, which helps to force the liquid up through the sensor tube -18-, when the return of both pistons takes place, which causes a suction or suction, the continues to contribute to the funding.

When the valve piston -13- returns, the liquid that is inside the container arrives The prevailing overpressure and the suction caused by the return flow up to the chamber -15- was, in the area of the valve piston -13-, taking the existing space and the aisles or Channels -20-20'- happened. On the upstroke, the piston -13- also acts as a pressure pump for the liquid, which has reached the upper part, whereby the suction contributes equally to the lifting effect is generated by the axial line -12- arranged on the pin -9- and by the piston -7-, with air is sucked through the! spout -19- to fill the chamber -6- again, so that the circuit is closed is·

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Starting from the widened head -23- of the axis -9- » which only acts as a return stop, opens the axial capillary line -12- into the side line -21-, which, when the valve -13 - is closed, above of the absorption body -3- is located. If, however, the valve head -23- presses on the valve during the downward stroke, This lateral line -21- leads through the absorption body -3-, which is impregnated by the liquid which rises in the line _T2- and flows through the lateral line -21- and again is closed as soon as the line has exceeded the lower limit of the absorption body. (see Fig. 2)

If the downward stroke of the axis -9- continues and the lateral line -21- is the lower limit of the guide wall, which is formed by the sleeve -2- continues to exceed, the liquid that flows through the side line can flow over into the body of the lower pump -15-. If the return or the Stroke takes place in the opposite direction, the absorption body -3- is again from the side supply line -21- happened and impregnated as long as

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until valve -13- closes and lines -12-21- are no longer supplied by the feed pump. ^:

During the subsequent alternating upward and downward movements of the piston -8- of the upper pump, a connection between line -21- and the absorption body -3- is constantly established, whereby the latter is connected to the corresponding one Amount of liquid is impregnated, whereby 'the air compressed by the upper piston this Carries liquid amount and mixes with it and finally it through the atomizer nozzle -19- in atomized form.

Before the connection between the lateral line -21- and the absorption body -3- breaks, takes place through this duct injects air into the lower body,

which is sufficient to cause an internal overpressure, {·

which contributes to the rise of the liquid "

In the variant shown in Pig · 4, only the valve shape is changed insofar as the valve consists of a disc! or a leller -25-, which is guided over the drive spring -10-, whereby it does not play a role,

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Spring whether leadership and connection inside or outside the

take place· . .

The lower part of the valve can in all cases and at the end of the stroke the uppermost part of the sensor tube -18 « close, it thus acts as a isolation valve with regard to the liquid inflow from the container or vessel comes and leads inside the body -15- of the feed pump, whose task it is to supply the absorption body -3- regularly and alternately ·

Finally, in Fig. 4 is a fit seal or a fitting ring -26 - is provided, which prevents sliding between the axial journal -9- and the axial movement of the sleeve -2- guaranteed, provided that Material of the latter does not guarantee this to an appropriate extent

In Fig. 4, the absorption body -3- is also shown without the © tongue fitted against the tulle © ..- 19- * A retaining bracket was again arranged, see above that the path of the compressed air through dea ober © » Piston -7- runs so that the air is forced to penetrates the entire absorption body and thus a

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better entrainment of the liquid impregnating the body and achieving a better mixture with it will.

It goes without saying that the! Dimensions, the Type of material of the components of the atomizing device, the shape and construction of the container, as well as the relative capacity of the chambers formed by the corresponding pump body, the cross section of the Sensor tube, number, arrangement, depth and height of the

Channels that may be made on the inner wall of the body of the suction and liquid transfer pump, the intended free flow of air and liquid and everything that does not hinder the established functions, the practical demands of each concrete one Execution can be adapted without affecting the essential details that characterize the on the pumping device for air and liquid supply to the mixing chamber of a manually used atomizer improvements made and which represent the purpose of the invention, are modified or changed

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Claims (1)

PATENT CLAIM J Arrangement of the air and liquid supply of an atomizer he s, in particular for the mixing chamber of a manually operated atomizer that has a pump body, which serves as a stopper for the liquid container with an air compressor piston, which when passing through a with liquid-impregnated absorption body this for Outlet nozzle leads, characterized by an axially arranged below the mounting of the absorption body, inside the container neck attached second pump, which can be actuated with suction and closing action and which is a regular Guaranteed liquid pumping to keep the absorbent body impregnated, through this absorbent body an axis is Hindurohführung, which is at the same time the axis of the piston of the upper pump, in the axially one Line runs, by means of which the body is alternately impregnated, which through the bottom of the storage chamber the axis of the absorption body in a widened head, which works as a piston drive of the second pump, ends, the piston is also designed as a valve that closes the flow channel that the lower pump with the Supply line connects to the absorption body. - 21 80 98 10/0 0 38 2 · Arrangement according to claim 1, characterized in that the upper part of the body of the liquid transfer pump on the container neck performs the function of a fitting seal meets and has a cylindrical bearing that is embedded in a circular G-ang that is attached to a sleeve is located which forms the base of the upper body, with the body of the feed pump in its lower The rope of its wall forms a tubular sleeve into which a sensor tube is inserted and which accommodates a Helical spring is used, which acts in the opposite direction and whose task it is to move the Yentil piston upwards when the drive pin receded 3. Arrangement according to claims 1 and 2, characterized in that the Eauminhalt the air compression chamber the upper pump is larger than that of the lower feed pump, the ratio between the capacity of both Chambers and that of the caliber of the passage lines the supply, the corresponding amounts of air and liquid to the intermediate chamber in which the absorption body is housed, regulated proportionally. - 22 »
809810/0033 Arrangement according to any one of the preceding claims, characterized in that "both pumps work simultaneously and in combination, but differently, the task of the upper pump being twofold, in that besides supplying the compressed air that carries the liquid impregnating the absorbent body with it , the air mixes with the liquid and sprays it in communication with the atomizing nozzle, and at the same time, during the downstroke of the upper piston, the air is directed into the interior of the second pump by providing a coaxial capillary tube attached to a spigot , which represents the axis that drives and opens the valve piston of the feed pump ... 5 x arrangement according to one of the preceding claims, characterized in that the diameter of the valve piston of the liquid feed pump is less than the inner diameter of the corresponding η pump body, by the resulting tree is a s ^ passage for the air drawn in through the upper pump ~ Air is possible, the naohverdiohtet duroh the downstroke of the valve piston by means of the feed pump ■ - 23 - of the sensor tube is pressed into the interior of the container, creating an overpressure above the liquid level which helps to force the liquid up through the sensing tube as the pistons recede and the suction takes place 6 · Arrangement according to one of the preceding claims, characterized characterized in that on the inner wall of the feed pump body some vertical channels with corresponding height and depth vo3 are seen, which allow a free passage at a certain moment of the piston stroke, the pumping over the liquid in the upper part of the spilling flask possible *. 7 · Arrangement according to one of the preceding claims, characterized in that the shut-off valve, which is the connection interrupted between the container and the supply line of the absorption body, at Versohlußposition from the head of the Axis of the upper pump is separated, the axis of which acts on the valve only when the latter is out of its seat formed by the hands of an equiaxed cylindrical hollow extension, such as the inner appendix of the liner, which is the base of the upper body - 24 -809810/0038 which is connected over the container neck, inside its cylindrical extension of the head of the drive axle, the head of which is the stop of the The reflux acts, disappears and is held back. 8. Arrangement according to claim 1, characterized in that the drive axis of the valve is formed by a pin that slides with low friction in a Pührungsbohrung provided in the bush, which the bearing chamber of the absorption body, wherein an axial capillary line is attached to the pin, which opens into a lateral outlet at a certain height of the same, wherein the outlet is in the closed position above the Absorbent body is located such that when on this Pin exercised an alternating upward and downward movement becomes, the lateral line regularly and alternately comes into contact with the absorption body, the liquid only flowing through the line when it arrives in the area of the storage chamber of the absorption body and the downward stroke of the axis has begun whose one end by impact causes the valve to open, the line with the side exit being closed again - 25 809 810/0038 remains when it penetrates through the bottom of the storage chamber of the absorption body and the liquid enters the lower feed pump flows over, the line with side outlet exceeded the lower limit of the floor 9. Arrangement according to claims 1 to 8, characterized in that that the coaxial capillary line of the drive pin of the valve from the lower head of the drive pin starts, in which there is an inclined channel that allows the passage of the liquid to the axial line, even if the pin head acts on the closure valve, this transverse passage in addition to it serves, the assembly and adjustment of the pin in view on the nut that connects it to the piston of the air compressor head 10 ») arrangement according to claim 8, characterized in that the position of the lateral mouth of the axial duct of the pin is at such a height above the storage of the co
ο
_o Liquid absorption body is located that through the ^ Line and during the downstroke and before the JJ Closure of the line with a side exit instead of * ° finds an air inlet into the interior of the container -26- j ■ U 25-861- takes place through the lower pump, with im Sets an overpressure inside the container, which interacts with the liquid feed pump 11 ·· arrangement according to one of claims 1 to TO, daduroh characterized in that the valve, the Kontaktaone of which has the corresponding shape with its seat, so is designed that in the lower part, to which the oppositely acting spring is connected, a Extension arises so that at the end of the downward stroke of the valve a gradual or total closure of the uppermost part of the line is effected, with which the sensor tube is connected, it being like a valve works with a double effect, which allows the access of the liquid to the interior of the feed pump body. 80 98 10/0 038