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81. 发明申请

US20030126982A1 Valve plate for axial hydraulic piston pump or motor 审中-公开
标题翻译：用于轴向液压活塞泵或电机的阀板
公开(公告)号：US20030126982A1
公开(公告)日：2003-07-10
申请号：US10038479
申请日：2002-01-07
发明人： Douglas W. Brooks
IPC分类号： F01B013/04
CPC分类号： F04B1/2021
摘要： A valve plate for a axial hydraulic unit where the mass of the front side is equal to the backside and the masses of the front side and the backside are equally distributed over the area of the sides of the plate. This improvement makes the manufacturing costs higher but significantly reduces the operating costs which makes it more economical.
摘要翻译：一种用于轴向液压单元的阀板，其中前侧的质量等于后侧，并且前侧和后侧的质量均匀分布在板的侧面的区域上。这种改进使得制造成本更高，但显着降低了操作成本，这使得它更经济。

82. 发明申请

US20020127119A1 High pressure fuel pump 失效
标题翻译：高压燃油泵
公开(公告)号：US20020127119A1
公开(公告)日：2002-09-12
申请号：US10141119
申请日：2002-05-09
申请人： Hitachi, Ltd.
发明人： Yoshinobu Ono , Yukio Takahashi , Hideki Machimura , Minoru Hashida , Masayoshi Kotaki , Takefumi Yamamura
IPC分类号： F04B001/12
CPC分类号： F04B1/2021 , F04B1/122 , F04B1/14 , F04B53/164
摘要： The present invention provides an axial plunger pump which does not need bellows by restricting fuel to a cylinder bore configuring a pump portion and by lubricating the other portion with oil. The high pressure fuel pump comprises a plunger reciprocating according to a shaking movement of a swash plate, a cylinder block forming a pump chamber together with the plunger, and a sealing member provided between the plunger and a cylinder bore for sealing oil leaked from the pump chamber to a chamber surrounding the pump chamber, wherein oil in the oil chamber is supplied from the outside of the high pressure fuel pump.
摘要翻译：本发明提供一种轴向柱塞泵，其不需要通过将燃料限制到构成泵部分的气缸孔并且通过用油润滑另一部分而不需要波纹管。高压燃料泵包括根据旋转斜盘的振动运动往复运动的柱塞，与柱塞一起形成泵室的气缸体和设置在柱塞与气缸孔之间的密封构件，用于密封从泵泄漏的油室到围绕泵室的室，其中油室中的油从高压燃料泵的外部供应。

83. 发明授权

US5683228A Oil pump cavitation relief 失效
标题翻译：油泵气蚀缓解
公开(公告)号：US5683228A
公开(公告)日：1997-11-04
申请号：US634576
申请日：1996-04-18
申请人： David J. Beatty
发明人： David J. Beatty
IPC分类号： F04B1/20 , F04B11/00 , F04B1/12
CPC分类号： F04B1/2078 , F04B1/2021
摘要： A variable displacement pump has a fluid passageway formed through a swash plate fluidly communicating a piston chamber with a drive shaft chamber not later than when the piston chamber comes into open fluid communication with a valve blcok resident inlet port to prevent erosion of the swash plate and the valve block about the inlet port. Secondary port portions of reduced flow area per unit rotation communicate with and circumferentially lead primary port portions of greater flow area per unit rotation.
摘要翻译：可变排量泵具有通过旋转斜盘形成的流体通道，该斜盘在不迟于当活塞室与阀门开口流体连通的情况下流体地连通活塞室与驱动轴室，以防止斜盘侵蚀; 阀门周围的入口端口。每单位旋转减少的流动面积的次级端口部分与每单位旋转的较大流动面积的主端口部分连通并周向地引导。

84. 发明授权

US5622097A Hydraulic piston machine 失效
标题翻译：液压活塞机
公开(公告)号：US5622097A
公开(公告)日：1997-04-22
申请号：US464691
申请日：1995-06-06
申请人： Lars Martensen , Ove T. Hansen
发明人： Lars Martensen , Ove T. Hansen
IPC分类号： F03C1/06 , F04B1/20 , F01B13/04
CPC分类号： F04B1/2021 , F05C2253/12 , Y10T74/18336
摘要： A hydraulic piston machine is proposed, with a cylinder body (1), which comprises at least one cylinder (2) with a piston (3) movable therein, and a control counter-plate (7) which engages the cylinder body (1) by way of a contact surface (6) and, on relative movement between the cylinder body and the control counter-plate parallel to the contact surface, connects the cylinder in dependence upon its position with inlet and outlet channels (11, 12) respectively, the control counter-plate (7) and/or the cylinder body (1) being provided, at least in the region of the contact surface (6, 9), with a friction-reducing layer (13). A machine of that kind should be inexpensive to manufacture yet should operate reliably even when the hydraulic fluid has no or only slight lubricating properties. For that purpose the friction-reducing layer (13) is in the form of an injection-moulded part.
摘要翻译： PCT No.PCT / DK94 / 00001 Sec。 371日期：1995年6月6日 102（e）日期1995年6月6日PCT 1994年1月3日PCT PCT。公开号WO94 / 16218 PCT 日期1994年7月21日提出一种液压活塞机，其具有缸体（1），其包括至少一个气缸（2），活塞（3）可在其中移动;以及控制反向板（7）气缸体（1）通过接触表面（6），并且在平行于接触表面的气缸体和控制反向板之间的相对运动上，根据其与入口和出口通道（11）的位置连接气缸，12），所述控制台板（7）和/或所述缸体（1）至少在所述接触表面（6,9）的区域中设置有减摩层（13）。这种机器制造成本低廉，即使在液压油没有或只有微小的润滑性能的情况下也能够可靠地运行。为此目的，减摩层（13）是注模部件的形式。

85. 发明授权

US5247794A Cylinder block positive hold-down for cold start-up 失效
标题翻译：气缸盖正压，用于冷启动
公开(公告)号：US5247794A
公开(公告)日：1993-09-28
申请号：US580537
申请日：1990-09-11
申请人： Victor N. Benson , Wayne A. Flygare , William J. Puskac
发明人： Victor N. Benson , Wayne A. Flygare , William J. Puskac
IPC分类号： F04B1/20 , F16H39/14
CPC分类号： F04B1/2021 , F16H39/14
摘要： An integrated drive generator for an aircraft and a method of making and operating the same result in improved operation of the integrated drive generator, especially during cold start-up. This is accomplished through the use of at least one stop to prevent each of the cylinder blocks in the hydraulic pump and motor assembly of the integrated drive generator from moving away from the port plate more than a predetermined amount which will ensure establishment of hydraulic continuity between the pump and motor without substantial delay during cold start-up of the integrated drive generator.
摘要翻译：一种用于飞行器的集成驱动发生器及其制造和操作的方法导致集成驱动发电机的改进的操作，特别是在冷起动期间。这是通过使用至少一个止动件来实现的，以防止液压泵中的每个缸体和集成驱动发电机的电动机组件远离端口板超过预定量，这将确保建立液压连续性泵和电机在集成驱动发电机的冷启动过程中没有大的延迟。

86. 发明授权

US5105723A Swash plate type axial piston pump 失效
标题翻译：滑板式轴向活塞泵
公开(公告)号：US5105723A
公开(公告)日：1992-04-21
申请号：US676207
申请日：1991-03-27
申请人： Yukio Kazahaya , Masakuni Ishikawa
发明人： Yukio Kazahaya , Masakuni Ishikawa
IPC分类号： F04B1/20
CPC分类号： F04B1/2021
摘要： A swash plate type axial piston pump having a valve plate along which a cylinder block slides. The valve plate has an intake port and a discharge port, respectively positioned on a small pitch circle. Oil passages are slanted extending from the intake port and the discharge port to a cylinder hole of the cylinder block of the piston pump, converging at an axial centerline of the cylinder block. Being different from the slanted oil passage, oil guide holes are formed extending from a bottom of the cylinder hole in parallel with a rotary shaft. Supplying pressed oil to the oil guide hole enables to decrease a pressure between the cylinder block and the valve plate.

87. 发明授权

US5085127A Cavitation resistant hydraulic cylinder block porting faces 失效
标题翻译：气蚀阻力液压缸体移动面
公开(公告)号：US5085127A
公开(公告)日：1992-02-04
申请号：US502167
申请日：1990-03-29
申请人： Charles J. Gantzer
发明人： Charles J. Gantzer
IPC分类号： F01B3/00 , F01B13/04 , F04B1/20
CPC分类号： F01B13/04 , F01B3/0032 , F01B3/0044 , F01B3/0047 , F04B1/2021
摘要： A problem with hydraulic displacement units of the axial piston type is the cavitation which occurs at the porting face of the cylinder block due to the conventional use of a bearing material which, because of its very nature, has a tendency to erode. A solution to this problem is provided by a hydraulic axial displacement pump or motor which comprises a housing (10), a rotatable cylinder block (18) in the housing (10) and including a plurality of bores (30), a piston (35) in each of the bores (30) and reciprocable therein upon rotation of the cylinder block (18), a valve member (12) having inlet and outlet ports (34) and in abutment with the cylinder block (18) wherein each of the bores (30) has a port (31) opening to the ports (34) in the valve member (12) to establish fluid communication therewith, and a porting face (63) on the cylinder block (18) about the ports to the bores (30) and abutting the valve member or endcap (12) formed of a hard, erosion resistant material, and at least one stabilization foot (65) extending from the cylinder block (18) toward the valve member (12) and formed of a bearing material. This configuration results in a pump or motor which avoids cavitation caused erosion in the porting face which in turn results in a longer life and more efficient operation of the pump or motor.
摘要翻译：轴向活塞式的液压位移单元的问题是由于传统使用的轴承材料而在气缸体的移动面处发生的气蚀，由于其本身具有倾向于侵蚀的倾向。液压轴向位移泵或电动机提供了解决这个问题的方案，该液压轴向位移泵或电动机包括壳体（10），壳体（10）中的可旋转气缸体（18），并且包括多个孔（30），活塞），并且在气缸体（18）旋转时可往复运动;具有入口和出口（34）并与气缸体（18）邻接的阀构件（12），其中每个孔孔（30）具有通向阀构件（12）中的端口（34）的端口（31），以与阀构件（12）形成流体连通，并且在气缸体（18）上的孔口周围的孔口（30）并且邻接由耐硬质材料制成的阀构件或端盖（12）以及从气缸体（18）向阀构件（12）延伸的至少一个稳定脚（65），并由轴承材料。这种结构导致泵或电动机避免气蚀引起移动面的腐蚀，这又导致泵或电动机的更长寿命和更有效的操作。

88. 发明授权

US4934251A Hydraulic motor or pump with constant clamping force between rotor and port plate 失效
标题翻译：液压马达或泵在转子和端口板之间具有恒定的夹紧力
公开(公告)号：US4934251A
公开(公告)日：1990-06-19
申请号：US285849
申请日：1988-12-16
申请人： Brian P. Barker
发明人： Brian P. Barker
IPC分类号： F03C1/253 , F03C1/38 , F04B1/20
CPC分类号： F04B1/2021
摘要： A hydraulic axial piston motor or pump (8) of the type in which a rotor (10) has an odd-numbered plurality of cylinder ports (30) with which the arcuate ports (40,42) of a port plate (36) successively register. The port plate (36) is provided with fluid exchange ports (44,46) through which cylinders (16) communicate with a hydraulic capacitance system (81,82,84,86,93). The capacitance system (81,82,84,86,93) urges fluid into each cylinder (16) of the rotor (10) through an exchange port (44) after the associated cylinder port (30) has departed from registration with one arcuate port (40) but before the associated piston (14) has reached its bottom-dead-center position (72), and receives fluid from each cylinder through an exchange port (46) after the associated piston has begun its compression stroke but before the cylinder port has begun to register with a second arcuate port (42). Urging fluid into each cylinder eliminates cavitation effects that would otherwise result from having too large a decompression zone (68- 67), while receiving fluid from each cylinder prevents excessive pressurization that would otherwise result from having too large a precompression zone (67). The invention thus enables the use of arcuate ports (40,42) which subtend the more limited angular ranges required to provide a pump or motor that operates with a constant number of high-pressure cylinders and, consequently, with a constant clamping force between the rotor (10) and the port plate (36).
摘要翻译：一种液压轴向活塞马达或泵（8），其中转子（10）具有奇数个多个气缸端口（30），端口板（36）的弓形端口（40,42）依次与其连接寄存器。端口板（36）设置有流体交换端口（44,46），气缸（16）通过该流体交换端口与液压电容系统（81,82,84,86,93）连通。电容系统（81,82,84,86,93）在相关联的气缸端口（30）已经脱离与一个弧形对准的位置之后通过交换口（44）将流体推动到转子（10）的每个气缸（16）端口（40），但在相关联的活塞（14）已经到达其下死点位置（72）之前，并且在相关联的活塞已经开始其压缩冲程之后但在之前气缸端口已经开始向第二弧形端口（42）注册。将流体推入每个气缸消除了由于具有太大的减压区（68-67）而导致的空化效应，同时从每个气缸接收流体可以防止由于具有太大的预压缩区域而导致的过大的加压（67）。因此，本发明使得能够使用弧形端口（40,42），其对准提供用恒定数量的高压气缸操作的泵或电动机所需的更有限的角度范围，并且因此在两者之间具有恒定的夹紧力转子（10）和端口板（36）。

89. 发明授权

US4890539A Control body arrangement for axial flow applyable in pumps, motors or engines 失效
标题翻译：可用于泵，电机或发动机的轴向流量控制体排列
公开(公告)号：US4890539A
公开(公告)日：1990-01-02
申请号：US150865
申请日：1988-02-01
申请人： Karl Eickmann
发明人： Karl Eickmann
IPC分类号： F01B3/00 , F04B1/20
CPC分类号： F01B3/0055 , F04B1/2021
摘要： A control arrangement to control the flow of fluid through pumps, motors, transmissions, engines has an eccentric shoulder assembled into a respective thrust chamber in a portion of the housing to be pressed against the rotary seal face of the rotor of the device. Such arrangements are known from some of my earlier patents and have served satisfactorily, but with the desire to improve the pressures further, it has been found, that arrangements are required to prevent the control body from slight rotation, under which it otherwise would stick. The arrangement provides the means to prevent the rotation and sticking by defining a relationship between eccentricities and gravity centers in order to reduce the tendency to stick. Pins and pins with eccentric and adjustable portions are also used to prevent the tendency to stick and so are pluralities of eccentrically arranged individual thrust chambers and control body portions. A specific feature which is claimed consists in a control body for reversible flow directions of flow of fluid which control body has only two seats instead of the former three seats, while at the same time the control body is highly efficient with only small leakage and friction.
摘要翻译：用于控制通过泵，马达，变速器，发动机的流体流动的控制装置具有组装在壳体的一部分中的相应推力室中的偏心肩部，以压靠装置的转子的旋转密封面。这些安排是从我以前的一些专利中已知的，已经令人满意地得到了，但是为了进一步提高压力的期望，已经发现，需要这样的布置来防止控制体轻微的旋转，否则它将被粘住。该装置提供了通过限定偏心和重力中心之间的关系来防止旋转和粘附的装置，以便减少粘附的倾向。具有偏心和可调节部分的销和销也用于防止粘附的倾向，并且多个偏心布置的单个推进室和控制主体部分也是如此。所要求的具体特征在于控制体的可逆流动方向的控制体，控制体仅具有两个座位而不是前三个座，而同时控制体高度有效，只有很小的泄漏和摩擦。

90. 发明授权

US4771676A Hydraulic transmission device 失效
标题翻译：液压传动装置
公开(公告)号：US4771676A
公开(公告)日：1988-09-20
申请号：US49516
申请日：1987-05-14
申请人： Satoshi Matsumoto , Kohji Sato
发明人： Satoshi Matsumoto , Kohji Sato
IPC分类号： F04B1/20 , F01B13/04 , F01B , F01B3/00
CPC分类号： F04B1/2021 , F04B1/2007 , F05C2201/906
摘要： A hydraulic transmission device operable to translate hydraulic energy into mechanical energy and vice versa. The device has a housing 14 having a close end portion and an open end portion in the longitudinal direction. The housing supports therein a drive shaft 11, a retainer 12, and a cylinder block 13 which have an integral structure. A recess is formed at a substantially central location of the end surface of the cylinder block 13 that is on the side of an open end of the housing, and a cover 15 closing the open end of the housing has a protruding portion 15A which extends through a port plate 23 to be engaged with the recess of the cylinder block through a bearing 17. A plurality of pistons are disposed in the cylinder block and are kept in tight engagement with a swash plate fixed to the closed end portion of the housing at a constant tilt angle. The device acts as either a swash plate type axial piston pump or motor of this type as the drive shaft rotates.
摘要翻译：液压传动装置，其可操作以将液压能转化为机械能，反之亦然。该装置具有在长度方向上具有近端部和开口端部的壳体14。壳体支撑有一体的结构的驱动轴11，保持器12和气缸体13。在气缸体13的位于壳体的开口端侧的端面的大致中央的位置上形成有凹部，并且封闭壳体的开口端的盖15具有延伸穿过的突出部15A 端口板23通过轴承17与气缸体的凹部接合。多个活塞设置在气缸体中，并与固定在壳体的封闭端部的斜盘保持紧密接合恒定倾角。该装置用作驱动轴旋转时的这种类型的斜盘式轴向柱塞泵或电动机。

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