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    • 8. 发明申请
    • Hydraulic motor with shift transmission
    • 带变速传动的液压马达
    • US20020062732A1
    • 2002-05-30
    • US09908033
    • 2001-07-18
    • Axel Widemann
    • F01B003/00
    • F03C1/0647
    • A hydraulic motor (1), has an output shaft (3), a block cylinder (6), and high-pressure pistons (7) guided therein, and a block cylinder spring (9) and a valve plate (5). The block cylinder (6) exerts a contact-pressure force on the valve plate (5) by way of the charging pressure of the hydraulic oil in the block cylinder (6) and of the spring force of the block-cylinder spring (9). The contact-pressure force is counter-acted, when the hydraulic motor (1) is at a standstill, by a hydraulic pressure field which is built up on a surface (13) between the block cylinder (6) and the valve plate (5) via a valve device (12).
    • 液压马达(1)具有输出轴(3),块缸(6)和引导其中的高压活塞(7),以及块缸弹簧(9)和阀板(5)。 块缸(6)通过缸体(6)中的液压油的充气压力和块缸弹簧(9)的弹簧力对阀板(5)施加接触压力, 。 当液压马达(1)处于停止状态时,接触压力与液压缸(6)和阀板(5)之间的表面(13)上建立的液压场相反, )通过阀装置(12)。
    • 10. 发明申请
    • CYLINDER BLOCK ASSEMBLY FOR HYDRAULIC UNIT
    • 液压单元缸体组件
    • US20160273531A1
    • 2016-09-22
    • US14661582
    • 2015-03-18
    • Hamilton Sundstrand Corporation
    • Kris H. CampbellGlenn C. Lemmers, JR.Mark J. Franklin
    • F04B53/16F04B53/14F01B31/28
    • F04B53/16F01B31/28F03C1/0647F03C1/0652F04B1/2021F04B1/2035F04B53/14
    • A cylinder block assembly of a hydraulic unit includes a cylinder block having a plurality of piston bores arranged circumferentially about a central axis of the cylinder block assembly and extending through a first face of the cylinder block. Each of the piston bores has a pitch diameter defined radially with respect to the central axis of the cylinder block assembly. A second face of the cylinder block has pressure ports that extend from the piston bores. The cylinder block assembly further includes a balance plate coupled to the second face of the cylinder block. The balance plate includes apertures that align with the pressure ports, where a cylinder block assembly outer length is defined between the first face of the cylinder block and an outer face of the balance plate. A ratio of the pitch diameter to the cylinder block assembly outer length is between 1.24 and 1.27.
    • 液压单元的气缸体组件包括具有多个活塞孔的气缸体,所述多个活塞孔周向地布置在气缸体组件的中心轴线上并且延伸穿过气缸体的第一面。 每个活塞孔具有相对于气缸体组件的中心轴线径向限定的节距直径。 气缸体的第二面具有从活塞孔延伸的压力端口。 气缸体组件还包括联接到气缸体的第二面的平衡板。 平衡板包括与压力端口对准的孔,其中气缸体组件外部长度限定在气缸体的第一面和平衡板的外表面之间。 螺距直径与气缸体总成外径之比在1.24与1.27之间。