公开(公告)号：US08196401B2

公开(公告)日：2012-06-12

申请号：US12315180

申请日：2008-11-29

申请人： Jochen Pfister ,  Eric Müller ,  Roshan Willeke

发明人： Jochen Pfister ,  Eric Müller ,  Roshan Willeke

IPC分类号： F16H61/662 ,  F16H45/02

CPC分类号： F16H61/0021 ,  F16H9/18 ,  F16H57/0435 ,  F16H57/0489 ,  Y10T137/86879 ,  Y10T477/6197

摘要： A hydraulic system for controlling a belt-driven conical-pulley transmission. A pump draws a working medium from a working medium tank or through a cooler return valve from a cooler return line. The cooler return valve is a minimum pressure valve that holds closed a connection between the cooler return line and a pump inlet line through the cooler return valve, as long as the pressure in the cooler return line remains below a specified minimum pressure. The cooler return valve also opens the connection between the cooler return line and the pump inlet line through the cooler return valve as soon as the specified minimum pressure in the cooler return line is exceeded.

摘要翻译： 一种用于控制皮带驱动的圆锥滚子传动装置的液压系统。 泵从工作介质罐或通过较冷的回流阀从较冷的回流管中抽取工作介质。 冷却器回流阀是一个最小压力阀，只要冷却器回流管路中的压力保持低于规定的最小压力，就可以通过冷却器回流阀将冷却器回流管路和泵入口管路之间的连接保持闭合。 一旦冷却器返回管路中指定的最小压力超过，冷却器回流阀也将通过冷却器回流阀打开冷却器回流管路和泵入口管路之间的连接。

公开(公告)号：US20090038305A1

公开(公告)日：2009-02-12

申请号：US12220790

申请日：2008-07-28

申请人： Reinhard Stehr ,  Eric Muller ,  Jochen Pfister ,  Roshan Willeke

发明人： Reinhard Stehr ,  Eric Muller ,  Jochen Pfister ,  Roshan Willeke

IPC分类号： F15B11/17 ,  B60K17/10

CPC分类号： F16H61/0031 ,  F16H2312/14

摘要： A hydraulic system for an automatic transmission operatively connected to an internal combustion engine that is operable in a start-stop mode. The hydraulic system includes a hydraulic energy source to supply the hydraulic system with hydraulic energy, the hydraulic energy source including at least one electrically driven hydraulic pump to supply the hydraulic system with hydraulic energy during a stopping phase of the internal combustion engine. To achieve a reduction in fuel consumption and CO2 emissions, provision is included to enable the electrically driven hydraulic pump to be switched on in addition to a mechanically driven hydraulic pump, as needed during an operating phase of the internal combustion engine.

摘要翻译： 一种用于可操作地连接到内燃机的自动变速器的液压系统，该内燃机可以起动模式操作。 液压系统包括用于向液压系统提供液压能量的液压能量源，所述液压能源包括至少一个电动液压泵，以在所述内燃机的停止阶段期间向所述液压系统提供液压能量。 为了实现燃料消耗和二氧化碳排放的减少，包括在内燃机的运行阶段期间除了机械驱动的液压泵之外还提供电动液压泵的接通。

公开(公告)号：US20080227595A1

公开(公告)日：2008-09-18

申请号：US12072138

申请日：2008-02-21

申请人： Jochen Pfister ,  Roshan Willeke ,  Eric Muller

发明人： Jochen Pfister ,  Roshan Willeke ,  Eric Muller

IPC分类号： F16H61/662

CPC分类号： F16H61/66259 ,  F16H61/12 ,  F16H61/66272 ,  F16H63/3483 ,  F16H63/3491 ,  F16H2061/6608 ,  F16H2061/661 ,  Y10T477/624 ,  Y10T477/6242 ,  Y10T477/62427 ,  Y10T477/62429

摘要： A hydraulic system for controlling a belt-driven conical-pulley transmission of a motor vehicle having a variably adjustable transmission ratio, and having an electrical actuation system for overall control of the hydraulic system, and a hydraulic parking lock-release system to control a parking lock. In order to provide an improved hydraulic system, the parking lock includes a self-retention system in the event of an electrical power failure.

摘要翻译： 一种液压系统，用于控制具有可变传动比的机动车辆的皮带驱动锥形滑轮传动装置，并具有用于液压系统总体控制的电致动系统，以及用于控制停车场的液压停车锁释放系统 锁。 为了提供改进的液压系统，停车锁在电力故障的情况下包括自保持系统。

公开(公告)号：US20090145292A1

公开(公告)日：2009-06-11

申请号：US12315180

申请日：2008-11-29

申请人： Jochen Pfister ,  Eric Muller ,  Roshan Willeke

发明人： Jochen Pfister ,  Eric Muller ,  Roshan Willeke

IPC分类号： F15B13/042 ,  F16K11/07

CPC分类号： F16H61/0021 ,  F16H9/18 ,  F16H57/0435 ,  F16H57/0489 ,  Y10T137/86879 ,  Y10T477/6197

摘要： A hydraulic system for controlling a belt-driven conical-pulley transmission. A pump draws a working medium from a working medium tank or through a cooler return valve from a cooler return line. The cooler return valve is a minimum pressure valve that holds closed a connection between the cooler return line and a pump inlet line through the cooler return valve, as long as the pressure in the cooler return line remains below a specified minimum pressure. The cooler return valve also opens the connection between the cooler return line and the pump inlet line through the cooler return valve as soon as the specified minimum pressure in the cooler return line is exceeded.

摘要翻译： 一种用于控制皮带驱动的圆锥滚子传动装置的液压系统。 泵从工作介质罐或通过较冷的回流阀从较冷的回流管中抽取工作介质。 冷却器回流阀是一个最小压力阀，只要冷却器回流管路中的压力保持低于规定的最小压力，就可以通过冷却器回流阀将冷却器回流管路和泵入口管路之间的连接保持闭合。 一旦冷却器返回管路中指定的最小压力超过，冷却器回流阀也将通过冷却器回流阀打开冷却器回流管路和泵入口管路之间的连接。