DE2446070A1 - MULTI-DIRECTIONAL VALVE FOR FLUID MEDIA - Google Patents

Description

DR. MÜLLERBORE DIPL.ING. GROENING DIPL.-CIIEM. DR. DEÜFEL DIPL.-CHEM. DR. SCHÖN

DIPL.-PHYS. HERTEL 2446Q7Q

PATENT LAWYERS

s / s 89-19

SANDOZ A. G. CH-'tOO2 Basel / SWITZERLAND

Multi-way switching valve for fluid media

The invention relates to a multi-way switching valve for fluid media. In particular, the invention relates to a multi-way switching valve for fluid media, which is suitable for use in a breathing device, for example a fan supplying a patient, in which a circuit with a fluid medium is used for regulation or as a power source. There can be different operating states in such devices. For example, in the case of a breathing device that has the operating states "breathing control ¹¹ ,""breathingaid" and "breathing aid / breathing control", the pa-

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MÜXCIIKN SIi. SIEHKIfTSTIi. I, IOSTI- ¹ AfII SHOTS «, KAHKI-: ItH E INI · AT K.VT, TEL ·: <08il) 471070/79 TELEX 5-152059

tient can be mechanically ventilated in the "breathing control" position, the patient can switch the device to the "breathing aid" position, and both operating states "breathing control" and "breathing aid" can be used at the same time. With this type of device, it is desirable to be able to easily switch from one operating state to the other. The multi-way switching valve according to the invention for fluid media is suitable for use in the selection of operating states in breathing apparatus of this type.

The invention creates a multi-way switching valve for fluid media, which is characterized by a valve main part with two or more valve bores, each of which has an inlet opening for connection to a supply line has for the fluid medium and an outlet opening, a closure element arranged in each of the valve bores between its inlet opening and its outlet opening, at least one outlet bore with an outlet opening of the outlet bore for connection to a drain line for the fluid medium, wherein the outlet bore is in flow communication with one or more of the outlet openings the valve bores, a button with actuating elements for the selective opening of at least one of the closure elements at the same time in order to establish a flow connection between the inlet opening of at least one Manufacture valve bore and the outlet bore. The valve bores can be spaced laterally from one another on a Arcs can be arranged at a fixed distance from an axis and the switch button with its actuating elements can be opened the closure element can be rotatably mounted on the valve main part about this axis, in which case the actuation elements to open the closure elements have the same fixed distance from this axis and therefore in selected rotational positions can be brought into which they can with the

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2446U70

Align valve bores. The operating elements for opening the locking elements are designed so that they are the locking element in the or each with an actuating element Open the aligned valve bore (s).

The actuating elements for opening the closure elements may comprise a compression spring and a ball, which are arranged in a blind hole in the switch button and in the direction is movable on a closure element arranged in a valve bore under the pressure action of the spring to to open the locking element when it is in the aligned position with the valve bore. The ball can be moved against the action of the compression spring into a non-actuating position when the actuating element is to be opened of the closure element is moved out of the aligned position with a valve bore.

Actuating pins can be used to open the closure elements be provided in the valve bores; in this case the ball acts on the actuating pin with which it is aligned is to open the closure element.

A flow connection between the outlet bore and the outlet of the ' Valve bore can be produced through a connection channel for the fluid medium, which the various Outlet openings- connects the valve bores with the outlet bore. The connecting channel for the fluid medium can from a connecting channel in an end face of the main valve part, where the outlet openings of the valve bores are arranged are, and be formed a cover covering this end face.

The invention is described below with the aid of an exemplary embodiment of an invention that does not limit the scope of protection.

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according to the multi-way stop valve for fluid media with reference to the accompanying drawings. The drawings show in:

Fig. 1 is an axial section of the multi-way valve for fluid media, the through a valve bore and a Outlet bore is guided;

FIG. 2 shows a bottom view in plane II-II of FIG. 1.

In Fig. 1, the reference numeral 10 designates a multi-way valve for fluid media, which has a valve main part 12 with three valve bores I ¹ J _9, each of which has an inlet opening 16 for connection to a (not shown) supply line for the fluid medium and an outlet opening 18 . A closure element 20 is arranged in each valve bore IH between its inlet opening 16 and its outlet opening 18.

An outlet bore 22 with an outlet opening 2M for connection to a (not shown) drain line for the fluid medium is in flow connection with the three outlet openings of the valve bores via connecting channels for the fluid medium which connect the three outlet openings 18 of the valve bores 1 * 1 to one another ^, and lead to the upper end of the outlet bore 22.

A switch button provided overall with the reference numeral 11 is arranged rotatably with respect to the valve main part. The Sehaltknopf has actuating elements, one at a time of the closure elements 20 to open individually selectively and a flow connection between the inlet opening l6 a Valve bore and the outlet bore 22 to produce. As can be seen from Fig. 2, the valve bores 1-4 are side-

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Lich distance from each other on points of a circle with a fixed distance from the axis of the valve main part 12 arranged. The switch button 11 can be rotated about this axis. The switch button carries an actuating device to open it a closure element, which consists of a compression spring 28 and a ball arranged in a blind hole, which is movable in the blind hole against the closure element 20 by the pressure action of the spring when it is in an aligned or aligned position with a valve bore 14.

In Fig. 1, the ball 30 is aligned in the actuating position shown with a valve bore 14. However, the ball can counteract the "compressive action of the spring" in a non-actuating manner or rest position are moved when the switch button is rotated out of alignment with a valve bore 14 will.

In the embodiment shown in Fig. 1, there are actuating pins 32 for opening the closure elements 20 in the valve bores 14. The ball 30 presses on the Actuating pin 32 with which it is aligned in order to open the associated closure element 20. In this way is between the inlet opening 16 of a valve bore and the outlet bore 22 via the connecting channel 26 a Flow connection established.

An indicator ring 34, which is rotatable with the switch button 11, can be provided to indicate which of several Operating modes is switched on.

From what has been said above, it can be seen that the valve bores 14 are connected to supply lines via their inlet openings 16 for the fluid medium, and that the outlet bore 22

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can be connected to a drain pipe. The selection or activation of the various operating modes takes place in such a way that, for example, the "breathing aid" mode is selected when one of the closure elements 20 is opened and that another operating mode, for example the "breathing control" operating mode, is selected when another the closure element 20 is open. The third position can, for example, operate as "breath control" and Switch on "breathing aid".

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Claims (5)

PATENT CLAIMS Multi-way switching valve for fluid media, characterized by a valve main part (12) with two or more valve bores (14), each of which has an inlet opening (16), which can be connected to a supply line for the fluid medium, and an outlet opening (18) in each of the valve bores (I ² J) between their inlet opening (16) and their outlet opening (18) arranged closure element (20), at least one outlet bore (22) with an outlet opening (2 ^ i) which connects to a discharge line for the fluid medium can be connected, the outlet bore (22) being in flow connection with one or more outlet openings (18) of the valve bores, as well as a switch button (11) with actuating elements (28, 30) to individually and selectively close at least one of the wear elements (20) open and establish a flow connection between at least one inlet opening (16) of the valve bores and the outlet bore (22). 2. Valve according to claim 1, characterized in that the valve bores (lH) are arranged at a lateral distance from each other on points of a circle at a fixed distance from an axis, the switch button (11) with its actuating elements (28, 30) around them Axis is rotatably mounted on the valve main part (12), and the ΒΌ9 8 U / 10-6.6 Actuating elements (28, 30) arranged at the same fixed distance from the axis and consequently can be brought into selective rotational positions in alignment with the valve bores (I ¹ I), the actuating elements (28, 30) being designed so that they open the closure element (20) in the or each valve bore (s) (14) aligned with an actuation element (28, 30). 3. Valve according to claim 1 or 2, characterized in that the actuating elements comprise a compression spring (28) and a ball (30) in a blind hole provided in the switch button (11), the ball (30) in the blind hole against an in a valve bore (1 * 1) arranged closure element (20) is movable by the pressure action of the spring (28) when aligned with such a valve bore (14) to open the closure element, and that it also against the pressure action of the spring in a not actuating or rest position can be moved when the actuating element (28, 30) is not in an aligned position with a valve bore (I ¹ I). ¹ I. Valve according to claim 3, characterized in that actuating pins (32) for opening the closure elements (20) are provided in the valve bores (I ¹ O, the ball (30) opening onto the actuating pin (32) aligned with it of the associated closure element (20) acts. 5. Valve according to one of claims 1 to ¹ I, characterized in that the flow connection between the outlet bore (22) and the outlet openings (18) of the valve bores (I ¹ I) through a connecting channel (26) her- 50 9 814/106 2446U70 is provided, which connects the various outlet openings (18) and the outlet bore (22) with one another. Valve according to claim 5 »characterized in that the connecting channel (26) for the fluid medium is from a connecting channel in one end face of the main valve part (12), where the outlet openings (18) of the valve bores (I ¹ I) are arranged, and one the end face covering cover is formed. 5098U / 1O66 / fo Blank page