发明名称 Piston for axial-piston machines
摘要 The invention relates to a piston (1) for axial-piston machines, comprising a hollow body (2) with an axial cavity (4), inserted in which, so as to fill it at least in part, there is a filler piece (6) made of a material having a lower specific mass (density) than the material of the piston (1), the filler piece (6) being axially secured in the cavity (4) by a shoulder projecting radially inward from the hollow body (2). The object of the invention is to improve said piston in such a way that, with a simple design, stable axial locking of the filler piece (6) is ensured. This is achieved by the filler piece (6) having a recess (9) which is arranged between its ends on its lateral face and into which that section of the hollow body (2), which overlaps the recess (9), is pressed in a positively locking and frictionally locking manner (indentation 8). <IMAGE>
申请公布号 DE3804424(C1) 申请公布日期 1989.08.24
申请号 DE19883804424 申请日期 1988.02.12
申请人 HYDROMATIK GMBH, 7915 ELCHINGEN, DE 发明人 ADLER, BERNHARD, 7915 THALFINGEN, DE
分类号 F04B1/12 主分类号 F04B1/12
代理机构 代理人
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