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    • 7. 发明授权
    • Variable ratio intensifier
    • 变比增压器
    • US4233000A
    • 1980-11-11
    • US99449
    • 1979-12-03
    • Bruce M. Cox
    • Bruce M. Cox
    • F03C1/007F04B21/04
    • F03C1/0073Y10T403/51
    • An improved differential pressure hydraulic pressure convertor whose ratio of output pressure to input pressure may be easily varied comprising a valve housing, a pump housing having a cylindrical bore therethrough, a power cylinder including a differential piston located between the valve housing and the pump housing, a piston assembly detachably secured to the differential piston of the power assembly and, optionally, a sleeve installed in the cylindrical bore in the pump housing slidably receiving the piston of the piston assembly.
    • 一种改进的差压液压转换器,其输出压力与输入压力的比率可以容易地变化,包括阀壳体,具有穿过其中的圆柱形孔的泵壳体,动力缸包括位于阀壳体和泵壳体之间的差动活塞, 活塞组件可拆卸地固定到动力组件的差速活塞上,以及可选地,安装在泵壳体中的圆柱孔中的套筒可滑动地容纳活塞组件的活塞。
    • 8. 发明授权
    • Hydraulic striking apparatus
    • 液压打击装置
    • US4028995A
    • 1977-06-14
    • US569531
    • 1975-04-18
    • Pekka SalmiPentti Raunio
    • Pekka SalmiPentti Raunio
    • B25D9/12B25D9/14E21B1/26F01L21/00F01L25/06F03C1/007F01B7/18F01L17/00F01L25/04
    • B25D9/12F01L21/00F01L25/06F03C1/0073
    • An hydraulically operated striking apparatus for driving a rock drill or the like comprises a body having an axial, generally cylindrical, interior space with an inwardly protruding annular member. A cylindrical piston is positioned in the space in sliding contact with the protruding annular member, and the piston has canal means in its outer surface. The body, the annular member and the piston define two annular spaces and an annular distributing valve is slidably disposed within one of the spaces. The two spaces communicate with each other by means of the piston canal when the piston is in a first slidable position, and the protruding annular member prevents communication between the two spaces when the piston is in a second slidable position. The piston is provided with an axially disposed extension which, in combination with an outlet means, serves to permit a third, annular axial space to communicate with either an inlet means or an outlet means at all times.
    • 用于驱动凿岩机等的液压操作打击装置包括具有轴向,大致圆柱形的内部空间的主体,其具有向内突出的环形构件。 圆柱形活塞定位在与突出的环形构件滑动接触的空间中,并且活塞在其外表面具有管道装置。 主体,环形构件和活塞限定两个环形空间,并且环形分配阀可滑动地设置在其中一个空间内。 当活塞处于第一可滑动位置时,两个空间通过活塞管道彼此连通,并且当活塞处于第二可滑动位置时,突出的环形构件防止两个空间之间的连通。 活塞设置有轴向设置的延伸部,其与出口装置组合用于允许第三环形轴向空间始终与入口装置或出口装置连通。
    • 10. 发明申请
    • REVERSIBLE HYDRAULIC PRESSURE CONVERTER EMPLOYING TUBULAR VALVES
    • 可逆式液压变压器使用管状阀
    • US20150053075A1
    • 2015-02-26
    • US14461850
    • 2014-08-18
    • Vianney RABHI
    • Vianney RABHI
    • F15B3/00F03C1/007
    • F15B3/00F03C1/0073F03C1/0076F04B9/113F15B1/024
    • The reversible hydraulic pressure converter (1) employing tubular valves includes a medium-pressure stage (44) consisting of a medium-pressure cylinder (2) and a double-acting medium-pressure piston (3) the position of which is sent to a control computer of the converter (19) by a piston position sensor (14), the cylinder (2) and the piston (3) forming two medium-pressure chambers (5) that can be placed in communication with a medium-pressure inlet-outlet circuit (15) by at least one tubular valve (12), the converter (1) also including two high-pressure cylinders (9) each cooperating with a high-pressure piston (8) of smaller diameter and defining two high-pressure chambers (11) that can be placed in communication with a high-pressure inlet-outlet circuit (16) by at least one tubular valve (12), each of the various tubular valves (12) cooperating with an independent valve actuator (13).
    • 使用管状阀的可逆式液压变换器(1)包括由中压缸(2)和双作用中压活塞(3)组成的中压级(44),其中位置被送至 通过活塞位置传感器(14),转子(19)的控制计算机,气缸(2)和活塞(3)形成两个中压室(5),该中压室可以与中压入口 - 出口回路(15)通过至少一个管状阀(12),转换器(1)还包括两个高压缸(9),每个高压缸(9)与较小直径的高压活塞(8)配合,并限定两个高压 能够通过至少一个管状阀(12)与高压入口 - 出口回路(16)连通的室(11),各个管状阀(12)与独立的阀致动器(13)配合, 。