DE1675365C3 - Pressure vessels for hydropneumatic pressure accumulators - Google Patents

Description

between the cylindrical connection part and the flat edge of the container, a retaining line ^a .ind ^e r ° isch ^{n e} "nschlusste.l on the fluid

side is arranged.

If the connecting part is wedged, the pressure acting on the connecting part in ^P w direction is divided into forces which are partly in S Rgg but largely reduced

en aurweise, uauuiui 5 - ^ Rehalter nnendrucK in ^ «'^ ·" · ■ »■ . ...

ate. Respect. but for the most part at right angles to

a) the rounding of the bend of the holding edge 15 ^ ' ^er _effective ° _and the material som.t in favorable

'. . ,, - 1:., - / Dl oii (\ ufMSi ΠΡΓ ALIISC win ^ "_,. Και nenn irh pn Πιρ

the rounding of the bend? des Ht (15) has a radius of curvature (R) which is so much larger than the radius of curvature (R) on the cylindrical part (26) that when the pressure vessel (10) is pressurized, the connecting part becomes wedged.

b) between the cylindrical connecting part and the bent edge (36) of the container Holding element (39) is arranged,

c) the cylindrical connecting part is arranged on the liquid side.

2. Pressure vessel according to claim 1. whose cylindrical connecting part through a middle Connection piece for the liquid passage is extended, characterized in that the holding element consists of a disk (39).

3. Pressure vessel according to claim 2, characterized in that the disc (39) is elastic and is fixed by a spring ring (40) on the connecting piece (27).

4. Pressure vessel according to claim 2, characterized in that the disc (39) by a Nut (44) is set on the nozzle (27).

_30th

Ser movement, are effective to a large part, however, r "axis and the material thus take in a favorable manner and cheaper point D, e wedging arises from the fact that s.ch .nfolge de difference of Kri.mmungsrad.en RR em contact Unearer with high surface pressure

The holding element fixes the connector in the container even if the container is depressurized

Appropriately, through emen m.ttleren Extended connector for the passage of liquid cylindrical connecting part, the holding element from a ScSe. The washer can be elastic and fixed on the socket by a spring washer, but it comes for the instep also a nut, n

^ The invention is exemplified using the drawing through a pressure vessel

³⁵

V lg. 3 eiriL-ii UaIi ₆ ^ ₁ by another embodiment of the pressure vessel according to the invention.

The pressure vessel 10 (Fig. 1) has a tubular

gene section, in the end 14 of a cylindrical

Connection part 26 is inserted sealingly with slight friction. The connection part 26 hot a connection

The invention relates to a pressure vessel door clip 27 for a pressure medium. The container end 14 is hydropneumatic pressure accumulator with a deform- folded inward and forms for the cylindrical ble bladder and at least one tubular connecting part 26 a retaining edge 15. The angle with Section in which a cylindrical connecting part with 45 which the retaining edge 15 is turned over. is smaller than Slightly friction sealing used and its end 90 "(F i g. 1) or approximately equal to 90 (F 1 g. 3). to form a retaining edge for the cylindrical. The turning over takes place in such a way that the retaining edge 15

Connection part is bent inwards, which has a conical portion 36 according to the Bending of the container edge and the area of the embodiment of FIG. 3 also a flat one cylindrical connecting part. around which is bent. 50 can be a section and that has a rounding 37 Have curves. (F 1 g. 2) with the part of the

In one of the US-PS 32 88 168 known container end 14 is in connection. Pressure vessels of this type have the radially protruding curve 37 of the bend of the retaining edge \%

outer end of the cylindrical, the gas side of the has a radius of curvature R, which is so much larger than the container closing connection part and the 55 the radius of curvature /? ' the annular bead-like lower over it inwardly bent container edge same edge 3ίί of the connecting part 26 that at Unterdruckset-radii of curvature, so that they rest on their entire surface zen of the pressure vessel 10 a wedging of the rest. As a result, the entering through the connector act.

Internal pressure generated in the container, on the edge of the container. In the embodiment according to FIG. 1 is the

transferred forces mainly in the sense of a 60 pressure vessel 10 a pressure accumulator oil-pneumatic bending of the container edge. Such a material type with two openings 11 and 12, the axial stress on each other is unfavorable and has an unsafe ~ ~ '"~ ^J - ^<ot - ~ ⁽ ' ^: - '<i;"»," Affniiner 11

Bracket of the connector result.

The object of the invention is, under a favorable unit, uruuKimuci wn- wiww »

Material stress caused by the connecting part 65 in the opening 11 is seated by a nut 18

formed container closure to simplify and fixed connection piece 16 with a threaded connection

make it safer. '"""' ^ta ■ * '"> ^with " ⁱⁿ ·" ·

According to the invention this is achieved in that

Kind with two openings 11 and 12, which are ax.al with each other cursing. The opening located at the end of the container 13 the opening 12 for a liquid pressure medium such as oil is intended for a gaseous pressure medium. I of the opening 11 sits through a

elegter connection piece 16 with a threaded approach 17 and a cap 19, which with a Seal 20 is fitted. The connection piece 16 has

a Vei extension into the interior of the container 10 with a Flange 21. through which a deformable and / or expandable or displaceable partition wall, for example seen from an elastic bladder 22, is fixed in its position-

The bladder 22 divides the interior of the container 10 into two Chambers, the inner chamber 23 being filled with gas and the outer chamber 24 being filled with the liquid pressure medium is.

The connection part 26 has a nozzle 25 for the liquid pressure medium, the outside of the container 10 located end 27 has internal threads.

On the inside of the connecting part 26 is located a bowl-shaped recess 28 to which the bladder 22 applies when fully inflated. The axial passage 29 of the connecting part is provided with a sieve 30 covered, which is inserted into a channel 31. At its periphery, the connecting part 26 is provided with an in a groove 33 lying sealing ring 32 is provided, the outer surface 34 of which with the inner wall of the container 10 is in contact

The space between the retaining edge 15 and the connecting piece 25 is shaped by a retaining element 39 closed by an elastic disc which is held by a ring 40 The Haiteelement 39 presses the Rounding 37 of the retaining edge 15, especially when the container is not under pressure, against the Lower edge 35 of connection part 26

In the embodiment according to FIG. 3, the arrangement is similar to that according to FIG. 1 and 2. It however, there is no screen 30, and the connection 25 has a valve 41, which is provided with a spring 42 is equipped and cooperates with a seat 43. The valve 41 closes when the liquid is expelled Pressure medium from the chamber 24 under the action of the bladder 22. and it opens when liquid pressure medium seeks to penetrate into the chamber 24 from the outside.

The angle at which the retaining edge 15 is turned over. is according to FIG. 3 90 °. The disk 39. the at This embodiment does not need to be elastic, is held by a nut 44.

For this purpose 2 sheets of drawings

Claims (1)

* Patent claims: 1. Pressure vessel for hydropneumatic pressure accumulators with a deformable bladder and little lip a tubular section in which a cylindrical connection part with slight friction used in a sealing manner and its end to form a retaining edge for the cylindrical connecting part is bent inwards, the bend of the container edge and the area of the cylindrical Connection part, around which it is bent, have curves, characterized in that that The rounding of the bend of the retaining edge has a smungi radius R , which is so large, si Tdr the radius of curvature R- on the cylindrical one that when pressurizing the one wedging of the connecting part