Hydraulic accumulator

摘要

A hydraulic accumulator, comprising a base body (2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h, 2i) having a first component (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i) and a second component (4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i) which are connected to one another by a form fit and/or a material join, is, with the aim of specifying a hydraulic accumulator which, after fabrication without difficulty, exhibits a very reliable seal, a high level of strength, an as far as possible undamaged surface and an as far as possible rotationally symmetrical design in the joining region of the components, characterized in that at least one component (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i) is deformed by a contactless shaping method in such a way that it enters into the form fit and/or material join with the other component (3a, 3b, 3c, 3d, 3e, 3f, 3g, 3h, 3i, 4a, 4b, 4c, 4d, 4e, 4f, 4g, 4h, 4i).

主权项

1. A hydraulic accumulator comprising:
a base body having a first component and a second component connected to one another by one of a form fit and a material join, the first component and the second component forming a storage space for a gaseous medium and a receptacle space for a liquid medium, the storage space separated from the receptacle space by a diaphragm, where a volume of the storage space and a volume of the receptacle space are variable, the storage space is embodied without an inflow line, and the storage space includes the gaseous medium at a pressure different from atmospheric pressure; wherein at least one of the first component and the second component is deformed by contactless shaping in an installation space at a pressure different from atmospheric pressure to join the first component and the second component by the one of the form fit and the material join, the contactless shaping comprising electromagnetic pulse joining, wherein a wave structure is formed in the first component and a plurality of depressions is formed in the second component, the wave structure engaging the plurality of depressions; and wherein the diaphragm is placed under prestress without using a clamping ring by the deforming of the at least one of the first component and the second component.