公开(公告)号：US5333997A

公开(公告)日：1994-08-02

申请号：US25625

申请日：1993-03-02

申请人： Werner Hormann ,  Manfred Blum

发明人： Werner Hormann ,  Manfred Blum

IPC分类号： F04B49/00 ,  F04B49/08 ,  F04C11/00 ,  F04C14/00 ,  F04C14/02

CPC分类号： F04B49/002 ,  F04B49/08 ,  F04B2201/1203 ,  F04B2203/0208 ,  F04B2205/18

摘要： The invention relates to a power control device for two variable displacement pumps, each with an adjusting device which can be acted upon by adjusting pressure, a power control valve associated therewith, which is acted upon by a first control pressure corresponding with the operating pressure of the variable displacement pump to be adjusted against a pressure difference in the direction of the control position, in which the adjusting pressure loading is controlled in the direction of reduced displacement of the variable displacement pumps along a hyperbolic control curve, whereby the pressure difference results from a spring-arrangement backpressure counteracting the first control pressure and a second control pressure corresponding with the operating pressure of the other variable displacement pump and with increase of the same drops from a maximum value to a minimum value. In order to set the latter value with the device, it is provided in accordance with the invention that the spring arrangement comprises a first and a second pressure spring, the first pressure spring is set to a force corresponding with the minimum value (.DELTA.p.sub.min) and the second pressure spring is set to a force corresponding with the difference (.DELTA.p.sub.max -.DELTA.p.sub.min) between maximum value (.DELTA.p.sub.max) and minimum value (.DELTA.p.sub.min) of the pressure difference, and the first pressure spring with its setting force and the second pressure spring with a force decreasing with increasing second control pressure act upon the power control valve.

摘要翻译： 本发明涉及一种用于两个可变排量泵的动力控制装置，每个都具有调节装置，该调节装置可以通过调节压力而起作用，与之相关联的动力控制阀被作用在与第一控制压力相对应的第一控制压力 所述可变排量泵被调节成与所述控制位置方向上的压力差相对应，其中所述调节压力负荷沿着双曲线控制曲线沿所述可变排量泵的位移减小的方向被控制，由此所述压差由 抵消第一控制压力的弹簧布置背压和与另一个可变排量泵的操作压力相对应的第二控制压力，并且从最大值增加到最小值。 为了用装置设定后一个值，根据本发明，提供弹簧装置包括第一和第二压力弹簧，第一压力弹簧被设定为与最小值对应的力（DELTA pmin） 并且第二压力弹簧被设定为与压力差的最大值（DELTA pmax）和最小值（DELTA pmin）之间的差值（DELTA pmax-DELTA pmin）以及具有其设定力的第一压力弹簧和 具有随着第二控制压力增加而减小的力的第二压力弹簧作用在功率控制阀上。

公开(公告)号：US5419130A

公开(公告)日：1995-05-30

申请号：US181596

申请日：1994-01-13

申请人： Norbert Ruckgauer ,  Werner Hormann

发明人： Norbert Ruckgauer ,  Werner Hormann

IPC分类号： F04B53/04 ,  F16D31/02 ,  F16D39/00

CPC分类号： F04B53/04

摘要： A hydrostatic machine which includes a housing having an internal space accommodating a rotatably journaled driving mechanism, and wherein the portion of the internal space which is not occupied by the driving mechanism encompasses a drain oil chamber which receives the drain oil inclusive of lubricating oil which is discharged from bearing locations of the hydrostatic machine, and which is connected or port to a tank through at least one drain oil connection of the housing and through a drain oil line. A pump is arranged in the drain oil line which is in a driving or operative connection with the hydrostatic machine, and which pumps off drain oil from the drain oil chamber during the operation of the hydrostatic machine, and possesses an output delivery correlated in such a manner therewith that the drain oil remaining in the drain oil chamber assumes that particular specified level in the lower region of the drain oil chamber, at which at least no splashing losses are encountered due to the rotation of the driving mechanism in the drain oil which exceed the mechanical losses of the hydrostatic machine.

摘要翻译： 一种静水压机，其特征在于，具有容纳旋转轴承的驱动机构的内部空间的壳体，其中，所述内部空间的未被所述驱动机构占据的部分包括排出油室，所述排出油室容纳包含润滑油的排出油， 从静液压机器的轴承位置排出，并通过壳体的至少一个排油连接并通过排油管线连接或连接到油箱。 在排水油管中布置有一个泵，其与静液压机器处于驱动或操作连接，并且在静液压机器的操作期间从排水油室排出排出的油，并且具有与这样的 排水油室中剩余的排水油在排水油室的下部区域中具有特定的规定水平，由于驱动机构在排出油中的旋转超过了至少不会产生飞溅损失 静液压机械的机械损失。

公开(公告)号：US5996616A

公开(公告)日：1999-12-07

申请号：US180866

申请日：1998-11-23

申请人： Werner Hormann

发明人： Werner Hormann

IPC分类号： F16K17/04 ,  F15B13/01 ,  G05D16/10

CPC分类号： G05D16/10 ,  Y10T137/7781

摘要： The present invention pertains to a dual-function hydraulic valve (1), i.e., a control valve and a pressure reduction or limitation valve at the same time. The inventive combined hydraulic valve (1) encompasses a valve casing (2) with a first central pressure connection (P), a second central pressure connection (Br) and a movable flow check piston (7) in the valve casing (2). The flow check piston (7) presents a pressure surface (16) enabling it (P), when the first central connection is put under supply pressure (P.sub.p), to move from its basic position against an opposing force proportional to said supply pressure (P.sub.p) It also presents a first control ridge (40) and a second control ridge (41). The first control ridge (40) is used to link the first central pressure connection (P) to the second central pressure connection (Br), starting from a first set minimum displacement of the flow check piston (7) which corresponds to a lower threshold value (P.sub.1) of the supply pressure (P.sub.p). The second control ridge (41) is used to break the linkage of the first (P) central pressure connection with both the second central pressure connection (Br) and the pressure surface (16), starting from a set maximum displacement (7) which corresponds to a higher threshold value (P.sub.2) of the supply pressure (P.sub.p).

摘要翻译： PCT No.PCT / EP97 / 05254 Sec。 371日期：1998年11月23日 102（e）日期1998年11月23日PCT 1997年9月24日PCT公布。 公开号WO98 / 16768 日期：1998年04月23日本发明涉及一种双功能液压阀（1），即同时控制阀和减压阀或限位阀。 本发明的联合液压阀（1）包括在阀壳体（2）中具有第一中心压力连接（P），第二中心压力连接（Br）和可移动流量检查活塞（7）的阀壳体（2）。 流量检查活塞（7）具有压力表面（16），当第一中心连接处于供给压力（Pp）时，压力表面（P）能够使其（P）从其基本位置抵抗与所述供应压力成比例的相反的力 它还呈现第一控制脊（40）和第二控制脊（41）。 第一控制脊（40）用于将第一中心压力连接（P）连接到第二中心压力连接（Br），从流量检查活塞（7）的第一设定的最小位移开始，对应于下阈值 供给压力（Pp）的值（P1）。 第二控制脊（41）用于从设定的最大位移（7）开始，断开第一（P）中心压力连接与第二中心压力连接（Br）和压力表面（16）的连接， 对应于供给压力（Pp）的较高阈值（P2）。

公开(公告)号：US5545013A

公开(公告)日：1996-08-13

申请号：US335818

申请日：1995-01-25

申请人： Jochen Beck ,  Werner Hormann

发明人： Jochen Beck ,  Werner Hormann

IPC分类号： F04B1/20 ,  F04B1/24 ,  F04B23/10 ,  F04B53/04 ,  F16N7/18 ,  F04B23/04

CPC分类号： F04B53/04 ,  F04B1/2014 ,  F04B23/106 ,  F16N7/18

摘要： The invention relates to a hydrostatic machine, in particular axial piston machine, having a machine housing the internal housing chamber of which accommodates a drive mechanism rotatably mounted by means of at least one bearing and has a leakage oil chamber opening to the outside via at least one leakage oil connection. To avoid splash losses of the hydrostatic machine, in accordance with the invention a pump device (29; 50; 60; 70) is arranged in the internal housing chamber in driving connection with the drive mechanism (3, 4, 7), which device is provided to pump leakage oil out of the leakage oil chamber (28) through the leakage oil connection (8, 37; 72) to the outside.

摘要翻译： 本发明涉及一种静液压机器，特别是轴向活塞机，其具有容纳其内部容纳室的机器，该内部容纳腔容纳有通过至少一个轴承可旋转地安装的驱动机构，并且具有至少通过至少一个外部开口的泄漏油室 一个漏油连接。 为了避免静液压机的飞溅损失，根据本发明，泵装置（29; 50; 60; 70）布置在内部容纳室中，与驱动机构（3,4,7）驱动连接，该装置 被设置为通过泄漏油连接（8,37,72）将渗漏油从泄漏油室（28）泵送到外部。