公开(公告)号：US6131714A

公开(公告)日：2000-10-17

申请号：US295832

申请日：1999-04-21

申请人： Theodor Bosl ,  Johann Wittman ,  Johann Reisch

发明人： Theodor Bosl ,  Johann Wittman ,  Johann Reisch

IPC分类号： A01B61/02 ,  B60K17/28 ,  F16D67/04

CPC分类号： B60K17/28 ,  A01B61/025

摘要： A power-take-off of a utility vehicle such as an agricultural tractor has a clutch (3) and a brake (18) to retain the output shaft against rotation when the clutch is disengaged. The invention provides a means of automatically disengaging the brake to permit rotation of the output shaft for the purpose of coupling an implement thereto. In one embodiment, the clutch and brake are engaged by fluid under pressure, and are disengaged by stopping the vehicle engine and thus allowing engine generated fluid pressure to decay.

摘要翻译： 诸如农用拖拉机的多功能车的取力器具有离合器（3）和制动器（18），以在离合器分离时保持输出轴不受旋转。 本发明提供了一种自动脱开制动器以允许输出轴旋转以便将工具联接到其上的装置。 在一个实施例中，离合器和制动器在压力下被流体接合，并且通过停止车辆发动机并因此允许发动机产生的流体压力衰减而脱离。

公开(公告)号：US6095297A

公开(公告)日：2000-08-01

申请号：US295834

申请日：1999-04-21

申请人： Theodor Bosl ,  Jakob Mayer ,  Johann Reisch

发明人： Theodor Bosl ,  Jakob Mayer ,  Johann Reisch

IPC分类号： B60K17/28 ,  B60K25/00 ,  F16D48/02 ,  F16D67/04

CPC分类号： B60K17/28 ,  B60K2025/026

摘要： A hydraulic system for a power-take-off in a utility vehicle is described, having a pump (8) supplying hydraulic fluid to the clutch (1), the brake (2) and a lubricating circuit, a control valve for engaging and releasing the clutch and a device containing a pressure-limiting valve (12) which makes a high system pressure available when the clutch is engaged and a lower system pressure when the clutch is released.In order to keep loss of power in the pump as low as possible and reduce the number of components required in a hydraulic system of this type, the system pressures are controlled by the pressure applied to the engaged clutch. Consequently, the system pressures can be adjusted regardless of the design of control valve used. This means that less expensive 3/2-way valves or 3/2-control valves can be used. This also has an advantage in that different system pressures can be produced using a single pressure-limiting valve. The hydraulic system is suitable for all types of utility vehicle with a power-take-off.

摘要翻译： 描述了一种用于多用途车中的动力输出的液压系统，具有向离合器（1）供应液压流体的泵（8），制动器（2）和润滑回路，用于接合和释放的控制阀 所述离合器和包含限制阀（12）的装置，其在所述离合器接合时使所述系统压力高，并且当所述离合器被释放时具有较低的系统压力。 为了尽可能地减少泵中的功率损失并减少这种液压系统所需的部件数量，系统压力由施加到接合离合器的压力控制。 因此，不管使用的控制阀的设计如何，可以调节系统压力。 这意味着可以使用较便宜的3/2向阀或3/2控制阀。 这也具有可以使用单个限压阀来产生不同的系统压力的优点。 液压系统适用于所有类型的具有起飞功能的多用途车辆。

公开(公告)号：US06298939B1

公开(公告)日：2001-10-09

申请号：US09261794

申请日：1999-03-03

申请人： Richard Heindl ,  Gunther Groger ,  Theodor Bosl ,  Robert Honzek

发明人： Richard Heindl ,  Gunther Groger ,  Theodor Bosl ,  Robert Honzek

IPC分类号： B60K1700

CPC分类号： F16H61/4043 ,  F16H61/4017

摘要： A system operated by what is referred to as a clutch pedal, which adjusts the traction power of an infinitely variable, hydrostatic-mechanical transmission. The transmission contains at least one pump (1) and at least one motor (2), arranged in a hydraulic circuit. In order to reduce the traction power, pressure is leaked between the two sides of the motor (2) by reducing the pressure at the control parts (14a) of two proportional valves (14, 15) in respective lines bridging the motor (2). The control parts (14a) of the proportional valves (14, 15) are connected via a shift valve (19) to an intermediate valve (24), the closing force of which is reduced as the clutch pedal (26) is opened by means of a closing spring (36).

摘要翻译： 由称为离合器踏板操作的系统，其调节无级变速的静力 - 机械变速器的牵引功率。 传动装置包括布置在液压回路中的至少一个泵（1）和至少一个马达（2）。 为了减小牵引力，通过减小桥接马达（2）的各个线路中的两个比例阀（14,15）的控制部分（14a）处的压力，在马达（2）的两侧之间泄漏压力， 。 比例阀（14,15）的控制部分（14a）经由换档阀（19）连接到中间阀（24），当中的离合器踏板（26）以装置打开 的闭合弹簧（36）。