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    • 45. 发明授权
    • Hydraulic accumulator and method of manufacture
    • 液压蓄能器及其制造方法
    • US08418727B2
    • 2013-04-16
    • US12572440
    • 2009-10-02
    • Edward J. Hummelt
    • Edward J. Hummelt
    • F16L55/04
    • F15B1/106F15B1/103F15B2201/3153F15B2201/4053F15B2201/4056F15B2201/605Y10T29/4998
    • An accumulator for a hydraulic system includes a polymer liner defining a cavity. A metal bellows assembly is housed in the cavity and separates the cavity into a first chamber and a second chamber, with the first and second chambers isolated from one another by the bellows assembly. A composite shell substantially encases the liner. The liner and shell are configured so that the first chamber receives hydraulic fluid from and delivers hydraulic fluid through an opening in the liner and the shell as the bellows assembly expands and compresses due to pressurized gas in the second chamber balancing fluid pressure changes in the first chamber. In one embodiment, the metal bellows assembly includes hydroformed bellows.
    • 用于液压系统的蓄能器包括限定空腔的聚合物衬垫。 金属波纹管组件容纳在空腔中并将空腔分离成第一室和第二室,其中第一和第二室通过波纹管组件彼此隔离。 复合外壳基本上包住衬垫。 衬套和外壳被构造成使得当波纹管组件由于第二室中的加压气体而膨胀和压缩时,第一腔室接收液压流体并通过衬套和壳体中的开口输送液压流体,平衡第一腔室中的流体压力变化 房间。 在一个实施例中,金属波纹管组件包括液压成形波纹管。