DE1693178U - HYDRAULIC PRESSURE ACCUMULATOR. - Google Patents

Description

£ 5173391

• x _. "·" »Ti ι #: a sy

D r. -Ing. H. D a b r i η g ha u s

Patent attorney

Dft ".Warf 1, de" β .. BezeMber 1954

CharlottenslraBe 58 My Aide Ντ..Ηί ** ?. £ ..-, ...- ~ Telephones 213 72 and 27891

Filing; I 4 * r59 / 58a Gm Firm.A «Ikrenreiah & die». Düsseldorf -Qfrerkassel. Bansa-

lie leaeroag concerns eiaen hyärattlisclisrL · Druck- * la is "got * Ijei ky & aaliseBsa Drao ^ speieiierii 5B2ffiiil3lasea or leabrane gn? use _t Üe the fed it amseiiliessea or liei Brsekspeiclisrii with olster wasp der ^ sisrii with olster w Iruc tres & tiu With the levsextässng w & Öl als Druekf TSssi ^ ieit, siiah the Sakwieri ^ eit ^ eiiiea suitable 31festea, elastic material to find the necessary

The Heaerung "ordered in" that a wrapper 3) ntelBpeieher a metallic resilient bellows serves ma. The doron the DrsskfXSsei ^ ince herrörgeruf enes forces assser the spring force of the bellows zusä counteract & zllobe springs "

Derfsrteil the lestskt leaerusg in _r that the metallis € ii & bellows a Sekr iiske letieiisdaaer aefneist · AöBserdem iIAT the bellows a Sekr large © surface that a © gate luklasg the oil ensures the Faltenfealg- * The iüklu2g can noeh darek ratlflüssi ^ ince sasätslißk increased weräh> for example durek immersion of the fold neck in

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IM as large a surface area of the bellows as possible The interior of the bellows can still be achieved be partially filled by a cylinder in which a for the equipment necessary for the hydraulic circuit will be accommodated »

At hjlrauliaehezt pressure accumulator ^ in which a Draekpolstet made of gas enclosed in an elastic membrane is, "according to the further invention, the MlIe also exists made of a metallic, resilient bellows * Also in In this case, the benefit of the long service life is

The gerstormig of the bellows due to an aa large pressure difference of the media inside and outside the bellows can also be prevented by a balancing valve, which is acted upon at one end by the bridging pad waxl at the other end for the bridging fluid in the reservoir, "when the pressure of the hydraulic fluid is too high The pump line in the storage tank is maintained and connected to a return line and the gas cushion is coupled to a gas pressure line and, at the high point of the Bruckpo isters, it becomes hostile to the atmosphere.

In the drawing, for example, the leueruag is and shown schematically »Is aeigen:

AbIi. 1 shows a soap-proof section through an accumulator with formed in a bellows, elastic Sruekbehalter *

Fig »E is a vertical section through a pressure accumulator with pressure pad enclosed in a bellows,

Fig. 3 and 4 a section through a compensating valve in the end positions

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In the AosfShrongsform according to Fig. L, the 1 darch of a bellows 2 is limited * which at its upper end to a plate J and. its lower inde is attached to a sheet 4 * In the plate 4 a sffniing 5 ² ^ linfshasmg of the burning fluid is attached · The sheets 3 ssä 4 are resiliently supported against each other «Stehhalaen i are iiL of the mat 4 ^ fixed asi protrude from the plate loosely .J MndareiL «Swiselen iferen upper ends 7 $ nd"& he plate 5 are springs 8 clamped *

If the 3xmk rises , Bruekrana 1 »then the bellows Z assdefenen · Ber Ieimon ^^ cseic mass thereby nieli · die ligeissjssnösg of the bellows. but aaoä the pressure of the springs. 8 tberwinden "In dßit bellows 2. ixiaein is hanged, so äies a bargain of Bm ^ * frizzy Bieser container may, designed as oil reservoir

his * from which the mush Iq ^ which is driven by the motor 11 * takes the BrtmkfBissigkeit *

Ba the bellows has a very large surface i. finds in the Dr & e & speieher - a constant Köhlsng Ä.QX more fluid! instead of.

In the case of Ä ^ T Äasfahrangsf ötm according to Äbb <»E, the bellows 12 closes the brmefcupholstery in the Bruekspeieher 15 · In the bellows 12 it is located as © the gas cushion and aosserdes; bellows die ^ itslcEl ^ si ^ eit * --- At strong 81-mrd the Bragk ^ lste ^ wsi dsaait the bellows Ii

The Bruek der Bruok- · Söfslge of the resistance of the folding bellows

12 is & but the brask ate better than that of des

In order to prevent the ZM from being strongly compressed and thus from being destroyed sa *, a support 14 protruding into it can be provided in the same. A stop 15 on the support 14 can, when it comes into contact with the bottom of the bellows, actuate an infeed switch 16 which, by holding a gas pump, increases the brackets in the bellows Druökfliissigfceitspsmpe cause so that the pressure outside the bellows increases uwi this more zusaamendrückt · Sckliesslicn is noelx a ÄasgleisbsTentil $ 1 pre-rush * the innerJaalb © also% m Sioberosg the pleat bellows tfberdrteke against destruction darcäi the aasserhalb same acts "piston 2o of Tentils is aaf But the other end face Z of the calving is pressurized for the time 24 and the bore 25 from the pressure pad in the bellows. The piston 2o is also in one by the spring 26 Eichtnng loaded, which the internal tension of the metal bellows XJ aosgl egg *

In the position of the piston 2q geuäss Fig * 2, drainage fluid is constantly required through the line 27, via the valve and the line 28 into the pressure accumulator. The Draok the DmekfISssi ^ ince aaf the Stimfläehe 21 holds ä.QT Draek of Saspölsters to the end face 2 $ balance * Eatweicht dorcn irgenöwelciie circumstances the air from the Drstckpolster, the bellows is znsasmengedrückt and there is sehliessliek a ernebliche pressure difference causes f that the piston 2ö see, moves into the position according to Fig. ^. In this position the ZaXaefleitung 28 is to

Pressure storage device and the pump line 2.7 wired to the safety line 2 * In addition, the pressure line 24 to the '! Oftpads is coupled to the air pump line 3 ° . So the pressure of the pressure relief rises and the pressure outside of the bellows in the pressure storage device drops * so that the pressure relief valve is again generally in its middle position according to ATib · 2

If, in the opposite case, the oil pressure in the pressure accumulator I ^ falls above a certain level, then the pressure of the cushion on the face 23 SßXL Brmek of the celebration ZS and & qxl liquid pressure on the Siirnf Mdke and heelMet with the piston 2 © overcomes in the position according to AlA · 4 · in this position, the gas cushion the line 24 and ¥ however, alve while connected to a fülirenden outside I »Zeitung ^ l * Ms takes place Ausgleiek and the spring 26 the Celts zuriiekfuiirt back into the littel position.

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Claims (2)

S chat claims « 1. Hydraulic pressure accumulator, characterized in that dasa a metallic, resilient bellows serves as a container and provides additional expansion forces caused by the pressure fluid, in addition to the spring force of the bellows Counteracting springs * 2. Drackspeicker according to claims 1, characterized in that the inside of the bellows is partially filled by a cylinder which serves as part of the apparatus necessary for the hydraulic system. 3 ·· BraekspeielLer naen insprueh l _t dadurcii gekennzeiohaet »that the outer wall of the Faiteabalgea is additionally cooled, for example by cooling liquid 4r Hydraulic pressure accumulator with brackish cushion enclosed in this in an elastic cover »characterized, that the cover consists of a metallic, resilient bellows * 5 · pressure accumulator according to claim 4 »characterized; that in the interior of the bellows a support projecting into the bellows is provided, which causes excessive compression of the bellows prevents 6 * accumulator according to claim 4 * characterized in that ia two ludstellungen of the bellows per a limit switch mounted outside _t of the bellows are operated by ^ eu pumps or valves to influence the pressure within Ihsb * · In the u ^ Qsajjeusoes- naeik insprudi 4> dadaren kemzeionnet that an Äüsgleiehsventii is erörgeseiien * that at one end "fön the Bru ^ Sjolster Ό && at the other end of the bridging lieatiisclilagi in Speiciier lieatiisclilagi ^ free sa holem Brack of the Bruels : eit in Speionei * the Bompesleitong ätscäiaXtet and with a Büeklamfleitong and the gas cushion with a ßasdruekleitimg littggelt "at ga noa ^ m Braek des DrßekpoIsters this connects with the Jtiisösphire *