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1.发明申请公开(公告)号：US20090064949A1
公开(公告)日：2009-03-12
申请号：US12202830
申请日：2008-09-02
CPC分类号： F01L9/02
摘要： In a method for operating an electrohydraulic valve control system of an internal combustion engine, the electrohydraulic valve control system comprising at least one gas exchange valve actuator and a gas exchange valve, which is hydraulically actuated by it, an actuation characteristic is acquired during the operation of the internal combustion engine while the gas exchange valve is being actuated and is compared with a reference actuation characteristic, which describes a nominal characteristic of the gas exchange valve actuator.
摘要翻译： 在用于操作内燃机的电动液压阀控制系统的方法中，电液阀控制系统包括至少一个气体交换阀致动器和由其液压致动的气体交换阀，在操作期间获取致动特性 的内燃机，同时气体交换阀被致动并且与参考致动特性进行比较，该参考致动特性描述了气体交换阀致动器的标称特性。
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公开(公告)号：US20110174152A1
公开(公告)日：2011-07-21
申请号：US13007041
申请日：2011-01-14
IPC分类号： F15B13/04
CPC分类号： F04B7/0053 , F04B7/0015 , F04B7/0076
摘要： A valve-controlled hydrostatic positive displacement machine (DDU) is proposed, with a plurality of cylinder-piston units which are each activatable or deactivatable, via at least one low-pressure valve and via one high-pressure valve, for adjusting a volume flow of the positive displacement machine. According to the invention a valve body of the high-pressure valve is embodied as a valve slide, and operative faces acted upon in or counter to a displacement direction are essentially pressure-balanced.
摘要翻译： 提出了一种阀控流体静压正排量机（DDU），其中多个气缸 - 活塞单元可以通过至少一个低压阀和一个高压阀来激活或停用，用于调节体积流量 的正排量机。 根据本发明，高压阀的阀体被实施为阀滑动件，并且作用在位移方向上或与位移方向相反的操作面基本上是压力平衡的。
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