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81. 发明授权

US5651301A Hydrostatic piston machines 失效
标题翻译：静液压活塞机
公开(公告)号：US5651301A
公开(公告)日：1997-07-29
申请号：US564446
申请日：1995-11-29
申请人： Christian Helmut Thoma , Arthur Atholl Blair , George Duncan McRae Arnold
发明人： Christian Helmut Thoma , Arthur Atholl Blair , George Duncan McRae Arnold
IPC分类号： F04B39/00 , F04B1/07 , F04B1/107 , F04B27/06 , F04B49/12 , F04C2/344 , F04C29/00 , F04C29/06 , F04B1/06
CPC分类号： F04B49/128 , F04B1/07 , F04B1/1071
摘要： A radial piston hydrostatic machine having an outer housing structure comprising at least two housing elements connectable together along a parting-plane arranged perpendicular to the rotational axis of said drive-shaft to define an internal chamber, a drive-shaft supported in the housing to drive the cylinder-barrel, the cylinder-barrel having a number of radial cylinders, each cylinder containing a piston such that the pistons can bear on the track-ring, fixed abutment means in the housing and disposed radially adjacent the track-ring for resisting the action of the pistons on the track-ring and suppressing vibration emanating from the track-ring.
摘要翻译：一种径向活塞静液压机，具有外部壳体结构，所述外部壳体结构包括沿着垂直于所述驱动轴的旋转轴线布置的分隔平面连接在一起的至少两个壳体元件，以限定内部腔室;支撑在壳体中以驱动的驱动轴气缸筒，缸筒具有多个径向气缸，每个气缸包含活塞，使得活塞可以承载在轨道环上，固定的邻接装置在壳体中并且径向地邻近轨道环设置，以抵抗活塞在轨道环上的作用并抑制从轨道环发出的振动。

82. 发明授权

US5626465A Hydraulic piston machines 失效
标题翻译：液压活塞机
公开(公告)号：US5626465A
公开(公告)日：1997-05-06
申请号：US354897
申请日：1994-12-09
申请人： Christian H. Thoma
发明人： Christian H. Thoma
IPC分类号： F01B1/06 , F04B1/113 , F04B49/12 , F04B1/04
CPC分类号： F04B49/128 , F01B1/06 , F04B1/1133
摘要： A housing for a hydraulic piston machine comprising two shells of part-cylindrical form, the shells connectable together along a parting plane in which the rotating axis of the drive-shaft lies to contain within internal working elements of the machine. Either or both housing shells may be provided with a opening connecting the interior to the exterior of the shell(s) to provide means for fluid distribution of the machine. A non-deformable liner-element located within one or more of said openings for isolating pressurized fluid passing through the machine from coming into direct contact with the housing shells.
摘要翻译：一种用于液压活塞机的壳体，包括两个部分圆柱形的壳体，所述壳体沿着分离平面连接在一起，驱动轴的旋转轴线位于该分离平面中，以容纳在机器的内部工作元件内。壳体壳体中的一个或两个可以设置有将内部连接到外壳的外部的开口，以提供用于机器的流体分配的装置。位于一个或多个所述开口内的不可变形的衬垫元件用于隔离通过机器的加压流体与壳体壳体直接接触。

83. 发明授权

US4920859A Radial piston pump and motor 失效
标题翻译：径向活塞泵和电机
公开(公告)号：US4920859A
公开(公告)日：1990-05-01
申请号：US891892
申请日：1986-08-01
申请人： Steven T. Smart , William M. Puls , David L. Hansen
发明人： Steven T. Smart , William M. Puls , David L. Hansen
IPC分类号： F04B1/06 , F04B1/107 , F04B49/12
CPC分类号： F04B49/128 , F04B1/066 , F04B1/107
摘要： A hydraulic radial piston power transmitting assembly including a hoursing and a back plate with a fixed pintle attached to the back plate which rotatably supports a cylinder block with radially spaced bores and pistons therearound, a drive shaft which drives the cylinder block through a coupling means, a cam ring surrounding the cylinder block which is pivotally connected to the housing allowing limited movement of the ring to vary the piston stroke in the cylinder block and cam ring positioning means including a rotating control arm mounted in the housing, swivel means attached to the cam ring with a spherical surface thereon and a sleeve means slidably received on the control arm means including a lateral bore for sliding receipt of the spherical surface of the swivel means to accommodate the locus of points which define the cam ring's various displacement positions.
摘要翻译：一种液压径向活塞动力传递组件，包括小时和后板，固定的枢轴连接到后板，其可旋转地支撑在其周围具有径向隔开的孔和活塞的气缸体;驱动轴，其通过联接装置驱动气缸体; 围绕气缸体的凸轮环枢转地连接到壳体，允许环的有限运动来改变气缸体中的活塞行程，并且凸轮环定位装置包括安装在壳体中的旋转控制臂，附接到凸轮的旋转装置环上具有球形表面，并且套筒装置可滑动地容纳在控制臂装置上，该套筒装置包括用于滑动接收旋转装置的球面的侧孔，以容纳限定凸轮环的各种位移位置的点的轨迹。

84. 发明授权

US4674956A Control valve for a pump with variable displacement volume 失效
公开(公告)号：US4674956A
公开(公告)日：1987-06-23
申请号：US825209
申请日：1986-02-03
申请人： Jorg Dantlgraber
发明人： Jorg Dantlgraber
IPC分类号： F04B49/00 , F04B49/08 , F04B49/12 , F04C14/22 , F16K11/07
CPC分类号： F04C14/223 , F04B49/08 , F04B49/128 , F16K11/0716
摘要： A control valve for a variable displacement pump is improved so that the levelling of the pressure fluctuations of the pump is better and quicker. For this purpose an additional control piston portion on the control piston of the control valve is used. Corresponding to the deflection of the control piston the constriction cross-section set by the control piston portion between the supply connected to the pump pressure line and a passage leading to the control space of the variable pump is varied so that the pressure rise in the control space of the pump and also the pressure drop is accelerated.

85. 发明授权

US4405288A Variable displacement hydraulic pump and controls therefor 失效
标题翻译：可变排量液压泵及其控制
公开(公告)号：US4405288A
公开(公告)日：1983-09-20
申请号：US126924
申请日：1980-03-03
申请人： Thomas R. Stockton
发明人： Thomas R. Stockton
IPC分类号： F04B49/12 , F04B49/00
CPC分类号： F04B49/128
摘要： A variable displacement rotary piston pump has a rotor splined to a driven shaft, a plurality of radially directed cylinders, each having a slidable piston fitted therein, a pumping ring surrounding the rotor and mounted eccentrically of the axis of the rotor with which the pistons maintain contact and are caused to move within the cylinders, a piston return ring engageable with notches formed on the pistons and an eccentric mounted for rotation to which the pumping ring is secured having an actuator pin whose movement determines the position of the pumping ring with respect to the rotor, thereby regulating the flow rate of the pump. The pump destrokes above the idle speed of the engine from which it is driven and limits the flow rate of the pump. A venturi orifice establishes a differential pressure which is applied across a flow control valve, which directs hydraulic fluid at discharge pressure to one or the other of two control pistons thereby adjusting the eccentric position. A left- right turn valve adapts the pump for use in a power steering system in a motor vehicle. A cam follower compresses fluid which is metered to the flow control valve and direct hydraulic fluid at discharge pressure to the left and right ends of a power steering cylinder.
摘要翻译：可变排量旋转活塞泵具有花键连接到从动轴的转子，多个径向指向的气缸，每个都具有装配在其中的可滑动的活塞，围绕转子并且偏心地安装在活塞的轴线上的泵送环接触并引起在气缸内移动，活塞返回环可与形成在活塞上的凹口接合，并且安装成用于旋转的偏心器，泵送环固定到该偏心件上，该致动销具有致动器销，该致动器销的运动决定了泵环相对于转子，从而调节泵的流量。泵会从发动机的怠速高于其驱动的怠速，并限制泵的流速。文丘里孔口形成了一个压差，该压差通过流量控制阀施加，该流量控制阀将排出压力下的液压流体引导到两个控制活塞中的一个或另一个，从而调节偏心位置。左右转阀适用于用于机动车辆动力转向系统的泵。凸轮随动装置将流量计量的流体压缩到流量控制阀，并将动力转向缸的左右端的排出压力的液压流体引导。

86. 发明授权

US4325215A Hydraulic apparatus 失效
标题翻译：液压装置
公开(公告)号：US4325215A
公开(公告)日：1982-04-20
申请号：US127138
申请日：1980-03-04
申请人： Toru Yamamoto
发明人： Toru Yamamoto
IPC分类号： F04B49/08 , F04B49/12 , F04C14/22 , F16D31/02 , F04B49/00
CPC分类号： F04C14/223 , F04B49/08 , F04B49/128
摘要： A hydraulic apparatus for changing flow rate by displacing the flow rate changing member of a variable displacement hydraulic pump accommodated in a casing for eliminating any surplus and leaked oil and diminished kinetic energy loss comprises an actuator, a flow rate control valve, a resilient member accommodated in the casing to urge the flow rate changing member toward the direction where the flow rate of the hydraulic pump is increased, first and second sliding members slidably received in first and second cylinder chambers, respectively, provided in the casing to urge the flow rate changing member toward the direction where the flow rate of the hydraulic pump is decreased, a first fluid conduit having one end connected with an outward port of the hydraulic pump and the other end connected with a rear port of the actuator, a second fluid conduit having one end connected with a fore port of the actuator and the other end connected with an inlet port of the hydraulic pump through the flow rate control valve, a third fluid conduit having one end connected with the second fluid conduit and the other end connected with the first cylinder chamber, and a fourth fluid conduit having one end connected with the first fluid conduit and the other end connected with the second cylinder chamber.
摘要翻译：用于通过移动容纳在壳体中的用于消除任何剩余和泄漏的油并减少动能损失的可变排量液压泵的流量变化构件来改变流量的液压装置包括致动器，流量控制阀，容纳弹性构件在所述壳体中朝向所述液压泵的流量增大的方向推压所述流量变化部件，分别可滑动地容纳在所述壳体中的第一和第二气缸室中的第一和第二滑动部件，以促使所述流量变化构件朝向液压泵的流量减小的方向;第一流体导管，其一端与液压泵的向外端连接，另一端与致动器的后端连接;第二流体导管，其具有一个端部与致动器的前端连接，另一端通过液压泵的入口连接流量控制阀，具有与第二流体导管连接的一端的第三流体导管和与第一气缸室连接的另一端;以及第四流体导管，其一端与第一流体导管连接，另一端与第二气缸室。

87. 发明授权

US4077745A Adjustment mechanism for radial-piston pump 失效
标题翻译：径向活塞泵调整机构
公开(公告)号：US4077745A
公开(公告)日：1978-03-07
申请号：US767356
申请日：1977-02-10
申请人： Werner Rometsch , Horst Willmer
发明人： Werner Rometsch , Horst Willmer
IPC分类号： F04B49/12 , F04B1/06
CPC分类号： F04B49/128
摘要： A pump has a rotatable rotor carrying a plurality of radially-extending pistons bearing at their outer ends on an annular adjustment ring which can be displaced radially in the pump housing by means of a pair of diametrically opposed adjustment cylinders that serve to displace this ring and adjust the stroke of the radial pistons in the rotor. One of the adjustment pistons is of larger diameter than the other and both of the adjustment pistons are spring-biased against the outer periphery of the adjustment ring and both have throughgoing bores so that pressure behind these adjustment pistons is fed to pressure-relief pockets at their inner ends against the adjustment ring. The small-diameter piston is provided in its through-going passage with a pressure-limiting valve which only allows pressure past to its respective pressure-relief pocket when pressure behind the smaller piston exceeds a predetermined minimum which is approximately a tenth of the maximum pump operating pressure. Thus during starting-up of the pump the pressure-relief pocket at the small piston is not pressurized to increase friction between the inner end of this piston and the adjustment ring so as to inhibit rotation of the adjustment ring around the rotor.
摘要翻译：泵具有可转动的转子，其承载多个径向延伸的活塞，其外端在环形调节环上，该环形调节环可通过一对直径相对的调节气缸在泵壳体内径向位移，调整转子中径向活塞的行程。调节活塞中的一个直径大于另一调节活塞，并且两个调节活塞都相对于调节环的外周边弹簧偏置，并且都具有通孔，使得这些调节活塞后面的压力被供给到压力释放口袋它们的内端抵靠调节环。小直径活塞在其贯穿通道中设置有限压阀，该限压阀仅在较小活塞之后的压力超过预定最小值时允许压力超过其相应的减压袋，其大约是最大泵的十分之一运营压力。因此，在泵的起动期间，小活塞处的减压槽未被加压以增加该活塞的内端与调节环之间的摩擦，从而阻止调节环绕转子旋转。

88. 发明授权

US4056042A Rotary hydrostatic piston machine with eccentrically movable guide means 失效
标题翻译：旋转静液压活塞机采用偏心移动导向装置
公开(公告)号：US4056042A
公开(公告)日：1977-11-01
申请号：US668970
申请日：1976-03-22
申请人： Peter Rutz , Anton Steiger
发明人： Peter Rutz , Anton Steiger
IPC分类号： F03C1/24 , F03C1/247 , F03C1/30 , F03C1/40 , F04B1/06 , F04B1/07 , F04B1/10 , F04B1/107 , F04B1/113 , F04B49/12 , F01B1/06 , F01B13/06
CPC分类号： F04B49/128
摘要： The hydrostatic piston machine has a smooth cylindrical pintle which is fixedly mounted in the housing and on which a cylinder block is rotatably mounted. The guide member for the pistons is eccentrically mounted about the pintle and has means thereon for supplying and/or taking off the torque of the machine. The eccentricity of this guide member is adjusted by a movable guide means within the housing. This guide means is controlled by the pressure mdium flowing through the machine.
摘要翻译：静液压活塞机具有光滑的圆柱形枢轴，其固定地安装在壳体中，并且气缸体可旋转地安装在该壳体上。活塞的引导构件围绕枢轴偏心安装，并且具有用于提供和/或脱离机器的扭矩的装置。该引导构件的偏心度通过壳体内的可移动引导装置来调节。该导向装置由流过机器的压力传感器控制。

89. 发明授权

US3969986A Radial piston pump 失效
标题翻译：径向活塞泵
公开(公告)号：US3969986A
公开(公告)日：1976-07-20
申请号：US322883
申请日：1973-01-11
申请人： Carl Verner Ohrberg
发明人： Carl Verner Ohrberg
IPC分类号： F04B1/04 , F04B1/107 , F04B49/12 , F01B13/06
CPC分类号： F04B49/128 , F04B1/0465 , F04B1/1074
摘要： The invention relates to a radial piston type pump comprising a casing, a shaft, two or more piston carriers mounted on and driven by the shaft, and a curved track surrounding the piston carriers. The piston carriers are axially movable on the shaft and pressure chamber and scaling means are provided between adjacent carriers to bias them in opposite directions against the internal casing walls which form a chamber in which the carriers are rotatably mounted. Fluid inlet and outlet means in one of these casing walls has fluid communication with the inlet and outlet passages in the carriers and the biasing of a carrier against this wall serves to provide sealing between the relatively rotating surfaces to minimize the leaking of fluid between these surfaces.
摘要翻译：本发明涉及一种径向活塞式泵，其包括壳体，轴，安装在轴上并由轴驱动的两个或更多个活塞载体以及围绕活塞承载件的弯曲轨道。活塞载体在轴和压力室上可轴向移动，并且在相邻载体之间设置定标装置，以相反的方向将它们偏压抵靠形成载体可旋转地安装在其中的内壳壁。在这些套管壁之一中的流体入口和出口装置与载体中的入口和出口通道具有流体连通，并且承载件抵靠该壁的偏压用于在相对旋转的表面之间提供密封，以使流体在这些表面之间的泄漏最小化。

90. 发明授权

US3901032A Reversible hydrostatic transmission 失效
标题翻译：可逆流体静力传动
公开(公告)号：US3901032A
公开(公告)日：1975-08-26
申请号：US46574374
申请日：1974-05-01
申请人： SULZER AG
发明人： STEIGER ANTON , RUTZ PETER
IPC分类号： F04B49/12 , F16H61/40 , F16H61/4061 , F16H61/4165 , F16H61/42 , F16H61/46 , F16H39/46 , F15B15/18
CPC分类号： F16H61/4165 , F04B49/128 , F16H61/4061 , F16H61/437
摘要： The transmission uses a pump which delivers in only one direction and the pump delivery line contains a reversing means such as a changeover valve for changing over the connections of the hydrostatic motor. A cooler and a filter can be used in the pump suction line due to the lower pressures obtained. The changeover valve is operated by an adjusting means via an adjustable lever.
摘要翻译：传动装置使用仅在一个方向传送的泵，并且泵输送管线包含用于改变静液压马达的连接的转换阀的换向装置。由于获得的压力较低，可以在泵吸入管路中使用冷却器和过滤器。切换阀由调节装置通过可调节杆操作。

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