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Hydraulic pressure reservoir

A hydraulic pressure and storage technology, which is applied to clutches, fluid-driven clutches, non-mechanical drive clutches, etc., can solve problems such as fatigue, incomplete pressure sealing of diaphragms, and failure to comply with the durability of pressure storage.

Inactive Publication Date: 2010-07-28
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such hydraulic pressure accumulators have the disadvantage that, on the one hand, the diaphragm is not completely pressure-tight and, on the other hand, is subject to fatigue phenomena, so that the required durability of the pressure accumulator cannot be complied with by the diaphragm accumulator.
[0006] The same problem exists in piston pressure accumulators working against gas pressure, in which only a gas accumulator is used instead of the helical spring

Method used

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Examples

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Embodiment Construction

[0029] as directly with the aid of the attached figure 1 As can be seen, the hydraulic pressure accumulator 1 according to the illustrated embodiment has a largely square contour with rounded corners, wherein only examples of such pressure accumulators are considered here .

[0030] The pressure accumulator 1 can be connected via a connector 2 into a hydraulic circuit whereby pressurized fluid can be introduced via the connector 2 into the figure 2 In the pressure chambers 3 shown in detail and can also be vented from these pressure chambers again via the connector 2 . also, figure 1 Also shown are a plurality of equidistantly spaced bolts 4, by means of which via the flange rings 5, 6 a fixed partition wall in the form of two control plates 7, 8 can be made (the hydraulic pressure accumulator in the drawing The embodiment shown in refers to an embodiment with two pressure chambers 3 ) screwed together.

[0031] The connector 2 has a channel 9 for supplying the pressure c...

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PUM

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Abstract

The invention relates to a hydraulic accumulator comprising at least one pressure chamber that is fluidically connected to a hydraulic circuit and that is defined between a mobile partition disposed in a housing and a stationary partition, and a pressure control valve. The invention is characterized in that the mobile partition is configured by a disk spring.

Description

technical field [0001] The invention relates to a hydraulic pressure accumulator with at least one pressure chamber in fluid connection with a hydraulic circuit and with a pressure limiting valve, said pressure chamber being formed by a movable partition arranged in a housing and a fixed between the dividing walls. Background technique [0002] Hydraulic circuits are used in a variety of applications, for example to trigger control pulses, or to generate actuating forces, for example by acting on a piston / cylinder unit. [0003] Thus, for example, automatically operated clutches can be operated by means of a hydraulic actuator, or such a hydraulic circuit can also be used to adjust the transmission ratio between two cone-disc pairs of a conical-cone-cone contact transmission. If such an actuating force has to be built up very quickly, the starting process of the electric motor of the electrohydraulic pump can lead to an excessively long duration for the starting process of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B1/04F16L55/05F16D25/12
CPCF15B1/04F16L55/05F16D25/12
Inventor M·施陶丁格
Owner SCHAEFFLER TECH AG & CO KG