DE1908427U - PRESSURE ACCUMULATOR WITH CONNECTIONS FOR A CONSUMER AND A PULSING PRESSURE MEDIUM SOURCE. - Google Patents

Description

RA.82159W3.11.6i.

ALFRED TEVES KG file: T 15 951 / 47a Gbm

Frankfurt (Main) GM 2741

21 N _o vember 1964 T / Sz

Pressure accumulator

The invention relates to a pressure accumulator with connections for a consumer and a pulsating one
Pressure medium source. In the case of piston accumulators, part of the
applied by the pressure medium source introduced pressure to overcome the piston friction. The inertia forces of the piston and the increase in gas pressure must also be
a part of the useful pressure can be overcome.

Diaphragm accumulators have a very low frictional pressure,
but the disadvantage that, depending on the working pressure conditions, the service life of the membrane is short.

With the invention, the advantages of piston accumulators are combined with the advantages of diaphragm accumulators and the
Disadvantages eliminated. The invention consists in that one chamber is divided into two chambers by a membrane
divided pressure vessel with the air side of the piston accumulator and its other chamber with the consumer, the pressure medium side of the accumulator and with the pulsating
Pressure medium source is in communication. A pulsating pressure medium source is not just a pulsating one
Understood the pump, but also other elements in the
Pressure medium supply line to the memory, for example valves, from which the pressure medium flow flows in pulsing or chopped. To the amplitude of the diaphragm in both
To be able to keep directions small, it is an advantage
perforated support shells, central position regulators or the like to be provided. In one embodiment of the invention, the pressure vessel and the piston accumulator have a common air chamber.

The invention can be implemented in a wide variety of ways it en too. One of them is shown in the attached drawing, namely show

Fig. 1 The pressure accumulator in the scheme Fig. 2 another embodiment of the pressure accumulator, in which the storage piston and the membrane are housed in one and the same pressure vessel, also schematically shown.

In Fig. 1, the pressure vessel with 1, the pressure accumulator with 2, the pressure medium supply line with 3> the pressure medium line to the consumer with 4, the air side of the pressure vessel with 5, that of the memory with 6, the connecting line between 5 and 6 with 7 j the membrane with 8, two Support shells with 9> the piston of the piston accumulator with 1o, the pressure medium space of the pressure vessel 1 with 11 and the The pressure medium space of the memory is marked with 12.

The piston accumulator 2 on its own is not able to withstand small fluctuations in volume caused by the pressure medium line 4 incoming pulsating useful flow) because the mass of the piston and its friction on the pressure accumulator walls is too big to be set in motion. It comes to disturbances in the upstream Part of the hydraulic system that results in vibrations in the pipelines and other unpleasant phenomena to make noticable. The volume fluctuations are easily transferred from the membrane 8 of the pressure vessel 1 to the Room 5 and through the pressure medium line 7 into room 6 transferred, where a corresponding compression of the air filling is effected. Big pressure changes don't pulsating type act by moving the piston 1o in the piston accumulator 2 and by corresponding compression the air in rooms 5 and 6 and in the connecting line 7> without the membrane 8 reacting.

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In Fig. 2, the pressure vessel 13 contains both the storage piston 14 and the membrane 15 and the support shells 9 · Between the piston 14 and the diaphragm 15 is the Storage fan included in the room 16. The pulsating Pressure medium flows from line 3 into pressure medium space 17 and out of this through the pressure medium line 18 to the consumer or through the secondary line 19 into the pressure medium storage space 2o. The mode of action The device of Fig. 2 does not differ from that of the device of Fig. 1.

Claims (2)

ALFRED TEVES KG file: T 15 95 Λ / hi a. Gbm Frankfurt (Main) GM 27 ^ -1 November 21, 1964 claims for protection 1. Pressure accumulator with connections for a consumer and a pulsating pressure medium source characterized by a membrane (8, 15) Pressure vessel divided into two chambers (5 | 11; 16, 17) (1; 13), one chamber (5,16) of which with the air side (6,16) of the piston accumulator (2; 13) and its others Chamber (11; 1V) with the consumer, the pressure medium side (12.2o) of the memory (2; 13) and with the pulsating Pressure medium source is in communication. 2. Pressure accumulator according to claim 1, characterized in that g e k e η η ζ e ic h η e t that the amplitude of the membrane (8; 15) through perforated support shells (9) in both directions is kept small. 3 · pressure accumulator according to claim 1, characterized in that the amplitude of the membrane by a central position controller is kept small. H. Pressure accumulator according to Claim 1, characterized in that the pressure vessel and the piston accumulator have a common air chamber (i6). . (Sesehreibune _W 4 shoulder »]».) Isl like. «"",,,,, .... ... .....", _{/ Often} <&, word- o * u ,,, ,, _{; f} , el, judge «UnMo ₉ M Ob Die« chlllche Sdot VA -Y- . ^ ' _{! s} , ZbTJZ Iog «. (Sesehreibune _W 4 shoulder »]».) Isl like. «"",, El, judge« UnMo ₉ M Ob. The "chlllche Sedeotun,