公开(公告)号：US10914281B2

公开(公告)日：2021-02-09

申请号：US16298658

申请日：2019-03-11

申请人： ITALGROUP S.R.L. CON SOCIO UNICO

发明人： Luciano Ghiaroni ,  Marco Ghiaroni

IPC分类号： F03C1/04 ,  F03C1/053 ,  F03C1/32 ,  F04B1/0421 ,  F04B1/0448 ,  F04B1/053 ,  F04B1/10 ,  F04B1/0443

摘要： A rotary hydraulic machine with radial pistons comprising: a rotating shaft (2); a cylinder-housing body (3), having a plurality of housing seatings (4) arranged radially at equal distances from the rotation axis (R) of the rotating shaft (2); a cylinder (5) housed in each of said plurality of housing seatings (4) and rotating relative to the same around an axis (C) concentric with said rotation axis (R) of the rotating shaft (2); a piston (6) slidable in each cylinder (5) and coupled to a crank (7) of the rotating shaft (2); a supply conduit (12), for each cylinder (5), provided with a seal (120) arranged to enable a sealed connection between the supply conduit (12) and the respective cylinder (5). Each seal (120) comprises: a first ring (121), arranged at an end of the supply conduit (12) and placed in contact with the cylinder (5); a second ring (122), concentric to the first ring (121) and interposed between the supply conduit (12) and the first ring (121), wherein the second ring (122) is coupled by interference with the first ring (121) and is inserted by interference into the supply conduit (12) in such a way as to prevent a rotation of the first ring (121) with respect to the supply conduit (12) around a common axis (X).

公开(公告)号：US10690109B2

公开(公告)日：2020-06-23

申请号：US15340363

申请日：2016-11-01

申请人： POCLAIN HYDRAULICS INDUSTRIE

发明人： Dominique Costaz ,  Loic Bonnard ,  Julien Viard

IPC分类号： F03C1/32 ,  F03C1/40 ,  F04B1/04 ,  F04B1/06 ,  F04B1/10 ,  F04B1/20 ,  F04B1/22 ,  F03C1/047 ,  F04B1/0452 ,  F04B1/063 ,  F04B1/2064 ,  F04B1/2035

摘要： The devices comprises a distributor (16) that presents distribution ducts opening out into a radial distribution face (16A), and a distributor-counterpart engaged in each other in such a manner that two main enclosures (18, 20) are provided between their opposite axially-extending faces. The device comprises a cylinder-capacity selector comprising two slides (24, 26) arranged after the other in a bore (22) of the element engaged in the other, to which are connected the main enclosures (18, 20) and at least some of the distribution ducts (30, 31). The slides are able to adopt at least three distinct configurations establishing different connections between the main ducts (18, 20) and the distribution ducts via the main enclosures, in order to be able to obtain at least three distinct operating cylinder capacities.

公开(公告)号：US6089266A

公开(公告)日：2000-07-18

申请号：US333319

申请日：1999-06-15

申请人： Karl Hiestand

发明人： Karl Hiestand

IPC分类号： F04B1/10 ,  B23Q1/00 ,  F04B1/107 ,  F04B1/113 ,  F16L27/08 ,  F16L27/087 ,  F16L27/00

CPC分类号： B23Q1/0027 ,  F16L27/087

摘要： In a device (1) for supplying a pressurized medium from a fixed component (2) into a rotating component (3) with a radially aligned sealing gap (11) provided between the components and in which the fixed component (2) comprises two rings (12, 13), the ring (13) delimiting the sealing gap (11) being held in an axially movable arrangement and with at least one control pressure chamber (35) provided between the two rings (12, 13), the movable ring (13) has an intermediate pressure chamber (31) on its end surface (16) facing the sealing gap (11) with this intermediate pressure chamber (31) being permanently connected to the control pressure chamber (35) by means of ducts (36, 37) worked into the axially movable ring (13).This embodiment allows the width of the radial sealing gap (11) to be set automatically, thereby practically precluding metal-on-metal friction between the components (2, 3) in the area of the radial sealing gap whilst only small leakage oil losses have to be accepted.

摘要翻译： 在用于将加压介质从固定部件（2）供应到旋转部件（3）中的装置（1）中，具有设置在部件之间的径向排列的密封间隙（11），并且固定部件（2）包括两个环 （12,13），限定密封间隙（11）的环（13）保持在可轴向移动的布置中，并且具有设置在两个环（12,13）之间的至少一个控制压力室（35），可动环 （13）在其端表面（16）上具有面向密封间隙（11）的中间压力室（31），该中间压力室（31）通过管道（36）永久地连接到控制压力室 ，37）加工成可轴向移动的环（13）。 该实施例允许径向密封间隙（11）的宽度被自动设定，从而实际上排除了径向密封间隙区域内的部件（2,3）之间的金属对金属摩擦，同时只有小的漏油损失 被接受

公开(公告)号：US5601417A

公开(公告)日：1997-02-11

申请号：US560203

申请日：1995-11-21

申请人： Raymond P. Haluda ,  John J. Hoffman ,  Charles Lord

发明人： Raymond P. Haluda ,  John J. Hoffman ,  Charles Lord

IPC分类号： F04B1/10 ,  F04B1/16 ,  F04B3/00 ,  F04B27/08

CPC分类号： F04B1/10 ,  F04B1/16 ,  F04B3/00

摘要： A hydraulic power unit combining a number of cylinders using ball bearings to displace hydraulic fluid sequentially with controlled flow to a number of hydraulic actuators. A power unit could combine a minimum of two cylinders through ten or twelve cylinders in a practical hydraulic power unit. The inherent bi-directional nature of this combination of fluid displacing ball bearings, cylinder and porting arrangement offers a unique opportunity to change fluid flow by reversing input drive. The torsional reaction component of the opposed reciprocator drives is utilized to rotate the core cylinder assembly to realign outlet and return fluid flow. This realignment can be used to reverse the fluid circuits or redirect the fluid to other work.

摘要翻译： 一种液压动力单元，其组合使用滚珠轴承的多个气缸，以顺序地将液压流体移动到多个液压致动器。 动力单元可以在实际的液压动力单元中将至少两个气缸结合十个或十二个气缸。 流体移动球轴承，气缸和移动装置的这种组合的固有双向性质提供了通过倒转输入驱动来改变流体流动的独特机会。 使用相对的往复运动器的扭转反应部件来旋转芯筒组件以重新排列出口并返回流体流动。 这种重新对准可用于反转流体回路或将流体重定向到其他工作。

公开(公告)号：US5374165A

公开(公告)日：1994-12-20

申请号：US114374

申请日：1993-08-30

申请人： Gerhard Fahnle

发明人： Gerhard Fahnle

IPC分类号： F04B27/06 ,  F04B1/10 ,  F04B1/107 ,  F04B1/04

CPC分类号： F04B1/1074

摘要： A pump with axial thrust compensation having an external housing, a main shaft within the housing to which are axially fixed two spaced apart rotors. The main shaft supports the rotors apart at respective collars against which the rotors are clamped. Each rotor including a series of radially displaceable elements within respective bores. The stroke rings for the rotors are rigidly attached to each other by a respective bearing shaft. A respective stroke ring around each rotor for moving the displaceable elements into and out of the bores. A respective control slot into each of the bores in the rotor and the control slots of each rotor extending laterally toward the other rotor. A housing partition disposed between the rotors, the partition including a first partial annular inlet channel section communicating with the control slots during a part of the path of the rotors where the displaceable elements are moving out of the bores and a second partial annular outlet channel section communicating with the control slots during a part of the path of the rotors where the displaceable elements are moving into the bores.

摘要翻译： 具有轴向推力补偿的泵具有外部壳体，壳体内的主轴，轴向固定两个间隔开的转子。 主轴支撑转子在相应的套环上分开，转子与其相夹紧。 每个转子包括在各个孔内的一系列可径向移动的元件。 用于转子的行程环通过相应的轴承轴彼此刚性地连接。 围绕每个转子的相应行程环，用于将可移位元件移入和移出孔。 转子中的每个孔中的相应控制槽和每个转子的控制槽横向向另一个转子延伸。 设置在转子之间的壳体隔板，该分隔件包括第一部分环形入口通道部分，该第一部分环形入口通道部分在可移动元件移出孔的转子的一部分路径期间与控制槽连通，以及第二部分环形出口通道部分 在可移动元件移动到孔中的转子的路径的一部分期间与控制槽连通。

公开(公告)号：US5279206A

公开(公告)日：1994-01-18

申请号：US82526

申请日：1993-06-25

申请人： W. Douglas Krantz ,  Mark S. Jennen

发明人： W. Douglas Krantz ,  Mark S. Jennen

IPC分类号： F04C2/30 ,  F04B1/06 ,  F04B1/10 ,  F04B1/107 ,  F04B1/113 ,  F04B49/12 ,  F16H61/42 ,  F16H61/439 ,  F01B1/06

CPC分类号： F16H61/439 ,  F04B1/066 ,  F04B49/128 ,  F16H61/42

摘要： A variable displacement radial ball pump (11) is disclosed of the type in which the balls (59) are restrained by a cam ring (25), which is pivotable about a cam pivot pin (27) to vary the displacement of the pump. In accordance with the invention, in order to return the pump to absolute zero displacement, the pump is provided with a detent mechanism (65;83). The cam ring 25 has a neutral region (73) and a ramp surface (77), and a detent member (69;89) is biased into engagement with the neutral region when the cam ring is in neutral (FIGS. 2 and 3). When the cam ring is displaced from neutral, the detent member engages the ramp surface, against the bias force of a spring (71;91), which exerts a force tending to return the cam ring to neutral in the absence of an input to the control assembly (33).

摘要翻译： 公开了一种可变排量径向球泵（11），其中球（59）被凸轮环（25）约束，该凸轮环可围绕凸轮枢轴销（27）枢转以改变泵的排量。 根据本发明，为了将泵返回到绝对零位移，泵设有制动机构（65; 83）。 凸轮环25具有中立区域（73）和斜​​面（77），并且当凸轮环处于空档时，止动构件（69; 89）被偏置成与中性区域接合（图2和图3） 。 当凸轮环从中性位移时，止动构件抵抗弹簧（71; 91）的偏压力与斜面接合，弹簧（71; 91）施加力，以在不存在输入的情况下使凸轮环返回中性 控制组件（33）。

公开(公告)号：US5207771A

公开(公告)日：1993-05-04

申请号：US805623

申请日：1991-12-12

申请人： Masakazu Sugisaw ,  Yoshio Watanabe

发明人： Masakazu Sugisaw ,  Yoshio Watanabe

IPC分类号： F04B1/10 ,  F04B1/107 ,  F04B1/113 ,  F04B9/04 ,  F16C3/22 ,  F16F15/28

CPC分类号： F04B9/045 ,  F16C3/22 ,  F16F15/28

摘要： A radial plunger type pump includes a housing, an eccentric cam shaft rotatably supported by the housing, a pair of bearings for supporting the cam shaft in the housing, a radial plunger reciprocally disposed in a cylinder of the housing and reciprocating within the cylinder of the housing in accordance with the eccentric rotation of a cam portion of the eccentric cam shaft. The pump further includes a pair of counterweights disposed in spaces provided between the bearings and the cam portion of the eccentric cam shaft, the pair of counterweights including a counterweight portion for balancing the rotation of the eccentric cam shaft and washer portion for preventing the plunger from axial movement wherein the counterweight portion and and washer portion are integrally secured and wherein the counterweights are engaged with the eccentric cam shaft for preventing the relative rotation therewith.

摘要翻译： 径向柱塞式泵包括壳体，由壳体可旋转地支撑的偏心凸轮轴，用于将凸轮轴支撑在壳体中的一对轴承，一对径向柱塞，其往复设置在壳体的气缸中并在 根据偏心凸轮轴的凸轮部分的偏心旋转来容纳壳体。 泵还包括设置在轴承和偏心凸轮轴的凸轮部分之间的空间中的一对配重，该对配重包括用于平衡偏心凸轮轴和垫圈部分的旋转的配重部分，用于防止柱塞 轴向运动，其中配重部分和垫圈部分一体地固定，并且其中配重与偏心凸轮轴接合以防止其相对旋转。

公开(公告)号：US5199259A

公开(公告)日：1993-04-06

申请号：US619137

申请日：1990-11-28

申请人： Marc L. Perot ,  Alain W. Noel

发明人： Marc L. Perot ,  Alain W. Noel

IPC分类号： F04B1/10 ,  F03C1/247 ,  F03C1/26 ,  F03C1/30 ,  F03C1/36 ,  F03C1/40 ,  F04B1/04 ,  F04B1/06 ,  F04B1/107 ,  F04B1/113 ,  F04C15/00 ,  F16D55/00 ,  F16D55/22 ,  F16D55/40 ,  F16D65/14 ,  F16D65/18 ,  F16D65/28

CPC分类号： F16D65/186 ,  F03C1/0447 ,  F04B1/06 ,  F04C15/0084 ,  F16D55/40 ,  F16D2055/0058 ,  F16D2121/12

摘要： The present invention relates to an assembly of a pressurized fluid mechanism and a brake coupled thereto. The assembly comprises an internal fluid distributor value having a communication face defining, within the housing of the assembly, two enclosures separated by the communication face and a brake comprising a brake-release chamber. The brake-release chamber is in permanent communication with at least one of the two enclosures resulting in a high yield motor of moderate cost.

摘要翻译： 本发明涉及加压流体机构和与其连接的制动器的组件。 组件包括具有连通面的内部流体分配器值，该连通面在组件的壳体内限定由连通面分开的两个壳体和包括制动释放室的制动器。 制动释放室与两个外壳中的至少一个永久连通，导致中等成本的高屈服电动机。

公开(公告)号：US5081907A

公开(公告)日：1992-01-21

申请号：US547679

申请日：1990-07-03

申请人： Gunther Nagel ,  Franz Arbogast ,  Peter Peiz

发明人： Gunther Nagel ,  Franz Arbogast ,  Peter Peiz

IPC分类号： F04B1/10 ,  F04B1/107 ,  F04B1/113 ,  F04B49/12 ,  F01B1/06

CPC分类号： F04B49/128 ,  F04B1/1071

摘要： A hydrostatic displacement engine having pistons which slide on the inside of a stroke ring. The eccentricity of the stroke ring, relative to the cylinder block, is variable. The interior of the housing is divided in two areas which are separated from each other preferably by a seal, namely in the area located radially outside the stroke ring and the area located radially within the stroke ring. The inner and outer areas serve as a leakage oil collection space and connects through a leakage oil line with a pressureless liquid container. Emptying in the area situated radially outside the stroke ring is a connection line which is supplied by a pressure supply. A pressure valve maintains the pressure in the outer area at a value of several bars.

摘要翻译： 具有在行程环内侧滑动的活塞的静液压排量发动机。 行程环相对于气缸体的偏心度是可变的。 壳体的内部被分成两个区域，这两个区域优选地通过密封件彼此分离，即位于行程环的径向外侧的区域和位于行程环径向的区域。 内外区域用作泄漏油收集空间，通过泄漏油管线与无压液体容器连接。 在位于行程环径向外侧的区域中的排空是由压力供应器供应的连接管线。 压力阀将外部区域中的压力维持在几个巴的值。

公开(公告)号：US5046931A

公开(公告)日：1991-09-10

申请号：US549838

申请日：1990-07-09

申请人： Dean E. Runkle

发明人： Dean E. Runkle

IPC分类号： F04B1/10 ,  F04B1/107 ,  F04B1/113

CPC分类号： F04B1/1071

摘要： The radial gear driven piston pump (10) comprises a stationary pintle or pin (40) having a rotatable rotor (30) mounted thereon. The rotor (30) and pintle (40) are disposed within a pumping bore (18) that is eccentrically aligned relative to bore extensions (28) receiving the pintle (40). The rotor (30) is driven by an offset motor (12) which engages a periphery of the rotor (30). The pintle (40) has therein two pairs of longitudinal passages comprising supply (46, 53) and discharge (47, 54) channels which communicate with respective intake (41, 43) and exhaust (42, 44) ports within the pump housing (16). The rotor (30) has sets of axially offset pistons (90, 100) received within piston cavities (93, 93'). Each set of piston (90, 100) comprises a metal piston cap (95) having a central opening (90) which receives a longitudinal extension (97) of a piston sealing ring (98). Each piston sealing ring (98) has an opening (111) extending into the longitudinal extension (97) in order to house a spring which engages a recess (34) of the piston cavity (93) to bias the piston outwardly into engagement with a bearing mechanism (70) disposed within the pumping bore (18). Each piston cavity (93, 93') has an end opening (94, 94') communicating intermittently with the associated supply (46, 53) and discharge (47, 54) channels as the rotor (30) rotates about the pintle (40). The pump (10) provides a dual channel pumping function with as many pistons as desired for each channel.

摘要翻译： 径向齿轮驱动活塞泵（10）包括具有安装在其上的可旋转转子（30）的固定枢栓或销（40）。 转子（30）和枢栓（40）设置在相对于接收枢栓（40）的孔延伸部（28）偏心对准的泵送孔（18）内。 转子（30）由与转子（30）的周边接合的偏置电动机（12）驱动。 枢栓（40）在其中具有两对纵向通道，其包括与泵壳体内的相应进气口（41,43）和排气口（42,44）连通的供应源（46,53）和排出口（47,54） 16）。 转子（30）具有容纳在活塞腔（93,93'）内的一组轴向偏移的活塞（90,100）。 每组活塞（90,100）包括具有容纳活塞密封环（98）的纵向延伸部（97）的中心开口（90）的金属活塞帽（95）。 每个活塞密封环（98）具有延伸到纵向延伸部（97）中的开口（111），以便容纳与活塞腔（93）的凹部（34）接合的弹簧，以将活塞向外偏压成与 轴承机构（70）设置在泵送孔（18）内。 每个活塞腔（93,93'）具有随着转子（30）围绕枢轴（40）旋转而间断地与相关联的供给（46,53）和排出（47,54）通道连通的端部开口（94,94'） ）。 泵（10）提供双通道泵送功能，其具有每个通道所需的活塞数量。