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    • 4. 发明授权
    • Hydrostatic drive having volumetric flow equalisation
    • 静压驱动器具有体积流量均衡
    • US08033107B2
    • 2011-10-11
    • US12280943
    • 2007-06-01
    • Seppo Tikkanen
    • Seppo Tikkanen
    • F16D31/02
    • F15B7/006
    • A hydrostatic drive with first and second hydraulic pumps and a dual-acting hydraulic cylinder. The dual-acting hydraulic cylinder has a first working chamber defined by a first piston surface and a second working chamber defined by a second piston surface. The first working chamber is connected to first connections of the first and second hydraulic pumps. The second working chamber is connected to a second connection of the second hydraulic pump. A second connection of the first hydraulic pump is connected to a hydraulic fluid reservoir. The ratio of the first piston surface to the second piston surface differs from the ratio of the total delivery volume of the two hydraulic pumps relative to the delivery volume of the second hydraulic pump. A tapping valve for removing hydraulic fluid is provided for the volumetric flow equalisation.
    • 具有第一和第二液压泵和双作用液压缸的静液压驱动。 双作用液压缸具有由第一活塞表面和由第二活塞表面限定的第二工作室限定的第一工作室。 第一工作室连接到第一和第二液压泵的第一连接。 第二工作室连接到第二液压泵的第二连接。 第一液压泵的第二连接件连接到液压油箱。 第一活塞表面与第二活塞表面的比率与两个液压泵的总输送量相对于第二液压泵的输送量的比值不同。 提供用于去除液压流体的排水阀用于体积流量均衡。
    • 6. 发明申请
    • HYDROSTATIC DRIVE HAVING VOLUMETRIC FLOW EQUALISATION
    • 具有体积流量均衡的静水驱动
    • US20090064676A1
    • 2009-03-12
    • US12280943
    • 2007-06-01
    • Seppo Tikkanen
    • Seppo Tikkanen
    • F15B7/00F15B7/10
    • F15B7/006
    • The invention relates to a hydrostatic drive comprising a first and a second hydraulic pump (11, 12) and a dual-acting hydraulic cylinder (2). The dual-acting hydraulic cylinder (2) comprises a first working chamber (7) and a second working chamber (8). The first working chamber (7) is defined by a first piston surface (4) of a working piston (3) and the second working chamber (8) is defined by a second piston surface (5) of the working piston (3). The first working chamber (7) is connected to a first connection (13) of the first hydraulic pump (11) and a first connection (14) of the second hydraulic pump (12). The second working chamber (8) is connected to a second connection (16) of the second hydraulic pump (12). A second connection (15) of the first hydraulic pump (11) is connected to a hydraulic fluid reservoir. The ratio of the first piston surface (4) to the second piston surface (5) differs from the ratio of the total delivery volume of the two hydraulic pumps (11, 12) relative to the delivery volume of the second hydraulic pump (12). A tapping valve (45) for removing hydraulic fluid is provided for the volumetric flow equalisation.
    • 本发明涉及包括第一和第二液压泵(11,12)和双作用液压缸(2)的液压驱动装置。 双作用液压缸(2)包括第一工作室(7)和第二工作室(8)。 第一工作室(7)由工作活塞(3)的第一活塞表面(4)限定,第二工作室(8)由工作活塞(3)的第二活塞表面(5)限定。 第一工作室(7)连接到第一液压泵(11)的第一连接件(13)和第二液压泵(12)的第一连接件(14)。 第二工作室(8)连接到第二液压泵(12)的第二连接件(16)。 第一液压泵(11)的第二连接件(15)连接到液压油箱。 第一活塞面(4)与第二活塞面(5)的比例与两液压泵(11,12)的总输送量相对于第二液压泵(12)的输送量的比例不同, 。 提供用于去除液压流体的排水阀(45)用于体积流量均衡。