DE2558569A1 - FOUR-WAY MIXING VALVE - Google Patents

Description

PATE NTANWALTS OFFICE

BERLIN - MUNICH

PATENT LAWYERS

DlPL-ING. W. MEISSNER (BLN) DIPL.-ING. P. E. MEISSNER (MCHN) DIPL-ING. H.-J. PRESTING (BLN)

1 BERLIN 33, HERBERTSTR. 22nd

Your sign Your letter from our sign Berlin, the

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CASEM s «n, c, di LUMELLO, Carlo and Francesco, Via Romagnasco 18. Valduggia (Vercelli). Italy

»Four-way mixing valve ■

This invention relates to four-way mixing valves _o Mixing valves of this type are used, for example, in heating systems with a pipe «

In general, the valves of this type require a slide control, which must be pushed axially into a valve body, which is a difficult and lengthy production, a requires a considerable amount of space and results in one or the other difficulty in terms of tightness

The object of the invention is to overcome these drawbacks by developing a valve of the above type which is disclosed by US Pat production is significantly simpler and takes up less space and ensures perfect tightness in all functional processes «

609832/0600

BORO MÖNCHEN: TELEX: TELEGRAM: TELEPHONE: BANK ACCOUNT: POST CHECK ACCOUNT:

MÖNCHEN 22 1-85844 INVENTION BERLIN BERLINER BANK AQ. W. MEISSNER, BLN-W

ST. ANNASTR. 11 INVENd BERLIN 030/885 60 37 BERLIN 31 122 82-109

TEL .: 089/223544 030/88623 82 3695716000

This problem is solved by the claim specified characteristics «,

The invention is to be explained in more detail below with reference to the drawings, which show an exemplary embodiment.
It shows:

1 shows a longitudinal section of a mixing valve according to the invention;

Fig. 2 is a longitudinal section of only the main body; 3 shows a longitudinal section of the inserted sleeve; 4 shows a front view of the shut-off element;

FIG. 5 shows a longitudinal section along the line V-V in FIG. 4

The mixing valve according to the invention consists of a tubular body or ₀ main body 2 (generally 1), which is open on one side and is closed on the opposite side by a transverse wall 4, in the AMSTEL in the middle a hole 5 on the side the body 2 has two connecting pieces 6, 7 with external thread, the axes of which intersect the axis of the main body at 90 ° and which lie on the same diametrical plane of this body.

On the open side of the body 1 a sleeve 8 is attached, which has an outer hgelföraig countersunk Part 9 has, which consists of a thread 9a and a retaining ring 10, so that the assembly of the sleeve on the body 1 can take place by means of a nut 15 which is attached to a lower thread 2a on the body 2 can be screwed «. This assembly is carried out by a

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Seal 14 sealed ", the sleeve 9 has an inside tubular seat 11 coaxial with the outer part and is supported by diametrically opposed ribs 12 The seat 11, which covers a pipe 16 as a seal, has a part 13 which has a smaller diameter · The attachment of the sleeve 8 creates two coaxial paths, one of which comes from the tube 16 and the other from the space between this tube or consists of the seat and the socket itself, to which a pipe (not shown) is axially attached «

In the inner cavity of the main body, a shut-off element 17, which consists of a tubular part, works consists, which is aligned with the axis of rotation of the body and on one side has a seat 19 on which the end part 13 of the sleeve 8 rests with a seal 19a · Above the inner cavity of the tubular body 18 is a transverse wall 20 from which a pin 21 protrudes, in the middle Hole 5 holds the top wall 4 of the main body together with a gasket. This pen enables that Attachment of a rotary knob 30, which is held by a washer and balancing springs 32 · The knob can record a measurement scale that cooperated with a pointer on a lateral projection 3 of the body 1

The shut-off element also consists of two obliquely symmetrical disks 22, 23 »with annular grooves the seals 27, 28 have «These disks are on the closest side by an inner ridge or a Wall 24 connected, while the upper 22 is connected to the transverse wall by two further inner ridges 26. The two

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Slices cut through the axis of the slide control 17 »in the zones in which this axis is from the axis the two lateral connecting pieces 6, 7 is cut through ο

The two swash plates serve as two locking devices to establish or prevent the connection between the upper connection piece 6 and the inner cavity of the pipe 18 with the pipe 16 and that between the lower connection piece 7 and the space between the sleeve 8 and the pipe 16. In the position of maximum opening, as shown in FIG. 1, there is the greatest liquid flow in both directions of the valve without the risk of seepage or accidental mixing. If the slider control is in operation _r are progressively covered the flow openings to finally shut off the communication between the connecting pieces 6, 7 and the two coaxial paths entirely. " In the position in which the slide control rotates 180 ° with respect to the position shown in FIG. 1, the two connecting pieces 6, 7 are short-circuited

In this way, an extremely compact and reliably functioning valve is obtained, which consists of very few parts _{or the like}

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Claims (1)

2553369 Claim Four-way mixing valve, especially for heating systems, characterized in that it consists of a tubular body (2) which is closed on one side (4) and open on the other side and which has two connecting pieces (6, 7) on the side. which lie on the same surface line of the tubular body that a sleeve (8) is provided on the open side, with a coaxial inner seat (11) for a connecting pipe (16), the seat (11) and the sleeve (8) having one Form an annulus for a further liquid passage that in the tubular body (2) a rotatable shut-off element (1? Is present, which has an axially continuous opening _s which is connected to the pipe (16), that on the shut-off element two mutually inclined im In the region of the smallest distances, disks (22, 23) connected to one another by an intermediate wall (24) with circumferential seals (27 »28) resting on the inner wall of the body (2) are arranged in such a way that the axis of the Shut-off element, the axes of the discs (22, 23) and the axes of the connecting pieces (6, 7) cross and that the shut-off element (17) via a bore (5) in the tubular body (2) with a rotary knob arranged above the closed end (30) is connected. Dip! - Ing. P- tj Meissner Patent attorney, ".——-- · 609832/0600