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公开(公告)号：US10693403B2
公开(公告)日：2020-06-23
申请号：US15467471
申请日：2017-03-23
摘要： An apparatus and method for a generator assembly for a drive train such as a rotatable turbine engine assembly. The generator assembly includes at least first and second generators mechanically coupled to the drive train. First and second dampers are operably coupled to the first and second generators, respectively, to selectively damp the first and second generators. Damping the first and second generators can reduce or eliminate both common mode and differential mode torsional oscillations from the generators to the drive train.
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2.发明授权公开(公告)号：US07464635B2
公开(公告)日：2008-12-16
申请号：US10840640
申请日：2004-05-07
申请人： Esa Rantala , Jarmo Heinonen , Antti Koskimäki
发明人： Esa Rantala , Jarmo Heinonen , Antti Koskimäki
CPC分类号： B25D9/18
摘要： The invention relates to a percussion device comprising two percussion pistons alternately making a percussion motion and a control valve for controlling the percussion pistons. The control valve (7) comprises a slide (8) affected by a force so that the slide is generally in a first position, but moves at the end of the percussion motion of the first percussion piston from the first position to a second position and correspondingly back to the first position at the end of the percussion motion of the second percussion piston (4).
摘要翻译： 本发明涉及一种包括两个冲击活塞交替地进行冲击运动的冲击装置和一个用于控制冲击活塞的控制阀。 控制阀（7）包括受力的滑动件（8），使得滑动件大致处于第一位置，但是在第一冲击活塞的冲击运动结束时从第一位置移动到第二位置，并且 相应地在第二冲击活塞（4）的敲击运动结束时回到第一位置。
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公开(公告)号：US5341723A
公开(公告)日：1994-08-30
申请号：US049299
申请日：1993-04-20
申请人： Michael Hung
发明人： Michael Hung
CPC分类号： F01L15/12
摘要： A reciprocating pneumatic motor for hydraulics has a pair of guide grooves on the inner wall of a cylinder provided, together with a pneumatic piston and a shuttle valve to function pneumatically. The piston has a seal ring which passes the guide grooves to allow air to flow into the shuttle compression chamber, pushing the shuttle valve and opening up a channel for the venting of air. This continuous air flow and venting causes the piston to reciprocate. In addition, the piston is integrated with a ring plate using plastic ultrasound technology which simplifies the structure of the pneumatic motor.
摘要翻译： 用于液压装置的往复式气动马达具有在气缸内壁上设置的一对导向槽，以及气动活塞和气动作用的梭阀。 活塞具有密封环，该密封环通过引导槽以允许空气流入梭式压缩室，推动梭阀并打开用于排出空气的通道。 这种连续的气流和排气使活塞往复运动。 此外，活塞采用塑料超声波技术与环板一体化，简化了气动马达的结构。
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公开(公告)号：US4632013A
公开(公告)日：1986-12-30
申请号：US623080
申请日：1984-06-21
申请人： Richard Frigon , Alan K. Forsythe
发明人： Richard Frigon , Alan K. Forsythe
CPC分类号： F01L25/066
摘要： A reciprocating piston fluid powered motor having fluid inlet and outlet, wherein reciprocation is controlled by a reciprocable valve spool carrying a manifold communicating with said fluid inlet and outlet and cooperating with a valve slide shiftable on said valve spool to control reciprocation of said valve spool.
摘要翻译： 一种具有流体入口和出口的往复式活塞流体动力马达，其中往复运动由可往复运动的阀芯控制，所述可往复运动的阀芯承载与所述流体入口和出口连通的歧管，并与可在所述阀芯上移动的阀滑块配合，以控制所述阀芯的往复运动。
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公开(公告)号：US4484638A
公开(公告)日：1984-11-27
申请号：US832533
申请日：1977-09-12
申请人： Joe E. West
发明人： Joe E. West
IPC分类号： B21J7/28 , B25D9/14 , B30B1/32 , E02D7/10 , E21B1/02 , F01B11/00 , F01L25/04 , G01V1/133 , B25D9/00 , B25D11/00
CPC分类号： B21J7/28 , B25D9/145 , B30B1/32 , E02D7/10 , E21B1/02 , F01B11/007 , F01L25/04 , G01V1/133 , Y10S173/04 , Y10T83/8858
摘要： Disclosed is a liquid inertia tool in which the kinetic energy of flowing liquid is converted to useful work by decelerating the liquid flow and directing the inertia force in the water against a movable element in the liquid flowcontaining structure which in turn moves against a work piece. Flow deceleration is achieved by an orifice-effect valve. The valve is reset for flow resumption or acceleration by automatically or selectively applying hydraulic pressure to a reset mechanism. Use of the inertia tool in pile driving and punch press applications is disclosed.
摘要翻译： 公开了一种液体惯性工具，其中流动液体的动能通过使液体流动减速并将水中的惯性力引导到液体流动结构中的可移动元件而转化为有用的工作，该可移动元件反过来相对于工件移动。 流量减速通过孔口效应阀实现。 通过自动或选择性地向复位机构施加液压，阀被复位用于回流或加速。 公开了在打桩和冲压机应用中使用惯性工具。
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公开(公告)号：US4281587A
公开(公告)日：1981-08-04
申请号：US26227
申请日：1979-04-02
摘要： A hydraulic apparatus for generating impacts comprising primary members having striking and control apparatus which is made up of a plunger which moves reciprocatingly, for striking a tool, inside a housing having an intermediate working zone which has a single inner diameter. An intermediate part making up a piston of the plunger fits therein and has a corresponding single diameter. There is no flow of fluid between these two members and the movement of the plunger is controlled by secondary members and tertiary members which are located in respective housings which make up several chambers, and in which the corresponding plungers are reciprocatingly movable. The apparatus further includes means for discharging the fluid under pressure from within the apparatus for stopping its operation when the tool is not at rest on a workpiece so that the main plunger descends inside the housing to a point below its normal lower operating position.
摘要翻译： 一种用于产生冲击的液压装置，包括具有打击和控制装置的主要构件，该冲击和控制装置由往复运动的柱塞构成，用于击打工具，在具有单个内径的中间工作区的壳体内。 构成柱塞的活塞的中间部件装配在其中并具有相应的单个直径。 在这两个构件之间没有流体流动，并且柱塞的移动由位于构成几个室的相应壳体中的第二构件和第三构件控制，并且其中相应的柱塞可往复运动。 该装置还包括用于当工具不处于工件处于停止状态时从用于停止其操作的装置内的压力下排放流体的装置，使得主柱塞在壳体内下降到低于其正常较低操作位置的点。
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公开(公告)号：US4262695A
公开(公告)日：1981-04-21
申请号：US77154
申请日：1979-09-19
申请人： Tomomitsu Iizumi
发明人： Tomomitsu Iizumi
CPC分类号： F15B13/02 , F01L25/04 , F15B11/0413 , F16K15/18 , F16K17/34 , F15B2211/40515 , F15B2211/40584 , F15B2211/50518 , F15B2211/50554 , F15B2211/5153 , F15B2211/7053 , F15B2211/75 , Y10T137/87499 , Y10T137/87563
摘要： A flow rate control valve for use with an actuator, in which a fluid may be quickly discharged from a cylinder in the actuator on a return stroke of a piston which is slidingly fitted in the cylinder. The valve includes a casing defining a fluid inlet port and a fluid outlet port, a fluid passage interconnecting the two ports, a throttle valve for restricting the opening of the fluid passage, and a pressure-regulating valve which is adapted to be open at pressures over a given pressure level. In this flow rate control valve, the throttle valve and pressure adjusting valve may be combined into a composite valve. An externally adjustable pressure adjusting spring, resiliently biasses the pressure regulating valve.
摘要翻译： 一种用于致动器的流量控制阀，其中流体可以在滑动地装配在气缸中的活塞的返回行程上从致动器中的气缸快速排出。 阀包括限定流体入口和流体出口的壳体，互连两个端口的流体通道，用于限制流体通道开口的节流阀和适于在压力下打开的压力调节阀 超过给定的压力水平。 在该流量控制阀中，节流阀和压力调节阀可以组合成复合阀。 外部可调节的压力调节弹簧，弹性地偏压压力调节阀。
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公开(公告)号：US4168655A
公开(公告)日：1979-09-25
申请号：US6843
申请日：1970-01-29
摘要： A vapor engine including a cylinder in which a piston reciprocates and having an inlet valve in the cylinder head which is driven from its seat by the piston as it approaches the cylinder head. The time at which the valve is driven from its seat does not change relative to the top dead center position of the piston. The travel of the valve body is ballistic and the valve remains open for a time determined by a combination of the piston velocity at the initial contact, the distance the valve travels before hitting a stop from which it rebounds elastically toward its seat, the pressure drop across the valve and the mass of the valve. The exhaust valve of the engine may be either internal and actuated by mechanical forces or external, in which case it is actuated by pressure forces. In one embodiment of the invention the stop from which the valve rebounds may be adjustably positioned manually or automatically to control the period of time during which the intake valve is open.
摘要翻译： 一种蒸汽发动机，其包括气缸，其中活塞在其中往复运动并且在气缸盖中具有入口阀，当气缸头靠近气缸盖时，活塞从其座部被驱动。 阀门从其座椅驱动的时间相对于活塞的上止点位置不变。 阀体的行程是弹道的，并且阀保持打开一段时间，该时间是由初始接触时的活塞速度与阀门在撞击弹簧向其座位弹回的停止点之间行进的距离，压降 横跨阀门和阀门的质量。 发动机的排气阀可以是内部的并且由机械力或外部致动，在这种情况下，其由压力致动。 在本发明的一个实施例中，可以手动地或自动地可调节地定位阀回弹的停止点，以控制进气门打开的时间段。
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公开(公告)号：US4028995A
公开(公告)日：1977-06-14
申请号：US569531
申请日：1975-04-18
申请人： Pekka Salmi , Pentti Raunio
发明人： Pekka Salmi , Pentti Raunio
IPC分类号： B25D9/12 , B25D9/14 , E21B1/26 , F01L21/00 , F01L25/06 , F03C1/007 , F01B7/18 , F01L17/00 , F01L25/04
CPC分类号： B25D9/12 , F01L21/00 , F01L25/06 , F03C1/0073
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4005637A
公开(公告)日：1977-02-01
申请号：US522977
申请日：1974-11-11
摘要： Impact tools are described which are capable of developing percussive forces for rock drilling and other repetitive high force applications. A hydroacoustic oscillator contained in such tools includes a hammer and a valve mechanism which is actuated by the hammer for controlling the flow of pressurized fluid so as to establish pressure variations which sustain the oscillation of the hammer. A number of alternative valve mechanisms are disclosed, each including a valve element, the motion of which is controlled by controlling the flow of fluid with respect to the valve element as the hammer and valve element move relative to each other. Such flow control is afforded by chambers defined by the valve element; hydraulic fluid flow with respect to which is controlled so as to determine the deceleration of the valve element and the motion of the element in its actuation by the hammer.
摘要翻译： 描述了能够开发用于岩石钻探和其他重复性大力应用的冲击力的冲击工具。 包含在这种工具中的水声振荡器包括锤和阀机构，其由锤致动以控制加压流体的流动，以便建立维持锤的振荡的压力变化。 公开了一些替代的阀机构，每个阀机构包括阀元件，当阀和阀元件相对于彼此移动时，通过控制流体相对于阀元件的流动来控制其运动。 这种流量控制由阀元件限定的室提供; 控制液压流体流动，以便确定阀元件的减速度以及元件在其由锤子致动中的运动。
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