公开(公告)号：US4519413A

公开(公告)日：1985-05-28

申请号：US593617

申请日：1984-03-26

申请人： Ludwig Wagenseil ,  Hermann Hoffmeister

发明人： Ludwig Wagenseil ,  Hermann Hoffmeister

IPC分类号： F16K17/00 ,  F04B49/08 ,  F15C3/02 ,  F16H61/40

CPC分类号： F16H61/40 ,  F04B49/08 ,  F04B2205/172 ,  F04B2205/18 ,  Y10T137/2564 ,  Y10T137/2567

摘要： The invention relates to a pressure averager for providing an averaged working pressure from the operating pressures of at least two sources of pressure medium, there being provided to average the operating pressures a differential piston of which the number of step faces which face the same direction and which are of equal size corresponds to the number of operating pressures to be averaged, of which the oppositely directed working face is equal to the sum of the step faces, and which is displaceably guided in a correspondingly stepped housing which is provided with supply lines for the operating pressures, and its object is to develop the pressure averager in such a way that an additional pressure relief valve is not required for its function within a hydraulic installation. This is achieved in that annular grooves in each case associated with a control edge of the respective step faces are provided in the housing, and in that leading away from the annular grooves there are discharge lines which are connected to a common line for the averaged pressure which is connected in turn to the working face.

摘要翻译： 本发明涉及一种用于从至少两个压力介质源的操作压力提供平均工作压力的压力平均器，提供了工作压力的平均值，其中面向相同方向的台阶面数目和 其尺寸相等于要平均的操作压力的数量，其中相反的工作面等于台阶面的总和，并且在相应阶梯的壳体中被可移位地引导，该壳体设置有用于 操作压力及其目的是开发压力平衡器，使得在液压装置内不需要额外的压力释放阀来实现其功能。 这是因为在壳体中设置有与各个台阶面的控制边缘相关联的每种情况下的环形槽，并且在远离环形槽的位置处具有连接到用于平均压力的公共管线的排出管线 其连接到工作面。

公开(公告)号：US6022198A

公开(公告)日：2000-02-08

申请号：US11390

申请日：1998-02-06

申请人： Hermann Hoffmeister

发明人： Hermann Hoffmeister

IPC分类号： F04B1/22 ,  F04B23/10 ,  F04B23/14

CPC分类号： F04B23/106 ,  F04B1/22

摘要： A double pump unit including two hydraulic pumps (1, 2) having drive shafts (5, 6) arranged coaxially with one another, which shafts are coupled with one another in a force-locking manner by a coupling piece (23). The coupling piece (23) is integrated in a connection piece (26) at least partially surrounding the coupling piece, in which connection piece there are formed suction channels (19, 20) for drawing in the pressure medium to be delivered through the hydraulic pumps (1, 2). The connection piece (26) has an inlet pressure chamber (33) into which the suction channels (19, 20) open. Further, the coupling piece (23) has peripherally arranged blade elements (30, 31) which rotate in the inlet pressure chamber (33) in order to feed the pressure medium into the suction channels (19, 20) under an initial pressure. The connection piece (26) may also be formed in two parts and, along with a main body (27), have a lid-like closure part (29) which is so dimensioned that the coupling piece (23), with its blade elements (30, 31), can be introduced into the main body (27) of the connection piece (26) through an opening (34) which can be closed by the closure piece (29).

摘要翻译： PCT No.PCT / EP96 / 03562 Sec。 371日期1998年2月6日 102（e）1998年2月6日PCT PCT 1996年8月12日PCT公布。 公开号WO97 / 13065 PCT 日期1997年04月10日一个双泵单元，包括两个液压泵（1,2），其具有彼此同轴布置的驱动轴（5,6），这些轴通过联接件以力锁定的方式彼此联接（ 23）。 联接件（23）集成在至少部分地围绕联接件的连接件（26）中，连接件形成有用于在压力介质中拉出以通过液压泵输送的抽吸通道（19,20） （1,2）。 连接片（26）具有入口压力室（33），吸入通道（19,20）打开。 此外，联接件（23）具有外围布置的叶片元件（30,31），其在入口压力室（33）中旋转，以便在初始压力​​下将压力介质输送到抽吸通道（19,20）中。 连接件（26）也可以形成为两部分，并且与主体（27）一起具有盖状封闭部件（29），其尺寸被确定为使得联接件（23）具有其叶片元件 （30,31）可以通过能够被封闭件（29）封闭的开口（34）引入连接件（26）的主体（27）中。

公开(公告)号：US4880359A

公开(公告)日：1989-11-14

申请号：US115762

申请日：1987-10-30

申请人： Hermann Hoffmeister ,  Klaus Puvogel ,  Reinhold Schniederjan

发明人： Hermann Hoffmeister ,  Klaus Puvogel ,  Reinhold Schniederjan

IPC分类号： F04B49/00 ,  F16H61/42 ,  F16H61/433 ,  F16H61/448 ,  F16H61/456 ,  F16H61/46 ,  F16H61/475

CPC分类号： F16H61/475 ,  F16H61/433 ,  F16H61/448 ,  F16H61/456

摘要： In a summation power output regulating system for first and second hydrostatic machines (3, 4), having a common drive and comprising at least two hydrostatic transmissions (1, 2), each of the machines (3, 4) having a hydraulic control device (7, 8), wherein the second machine (4) is provided with a hydraulic power output regulator (24) which regulates the pressure acting on the control device (8) in dependence on the power output of the second machine at that time and a control pressure, dependant on the working pressure of the first machine, is transmitted by means of a hydraulic actuator to the power output regulator (24), substantially 100% utilization of the power available is attained with a simple construction and function by providing the first machine (3) with a power output measuring valve (34; 63, 64) which determines the power output at the time and regulates the control pressure (P.sub.3) in dependence on the power output of the first machine.

摘要翻译： 在用于第一和第二静液压机（3,4）的总和功率输出调节系统中，具有共同的驱动并且包括至少两个静液压变速器（1,2），每个机器（3,4）具有液压控制装置 （7,8），其中所述第二机器（4）设置有液压动力输出调节器（24），所述液压动力输出调节器根据所述第二机器在那时的功率输出来调节作用在所述控制装置（8）上的压力;以及 取决于第一机器的工作压力的控制压力通过液压致动器传递到动力输出调节器（24），通过提供简单的结构和功能可实现100％的可利用的功率的利用， 第一机器（3），其具有功率输出测量阀（34; 63,64），其确定该时间的功率输出，并且根据第一机器的功率输出来调节控制压力（P3）。

公开(公告)号：US1858708A

公开(公告)日：1932-05-17

申请号：US38433629

申请日：1929-08-08

申请人： HERMANN HOFFMEISTER

发明人： HERMANN HOFFMEISTER

IPC分类号： A01D17/10

CPC分类号： A01D17/10 ,  A01D2017/103