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1. 发明授权

US6039785A Material for the powder-metallurgical production of shaped parts, in particular valve seat rings or valve guides with high resistance to wear 失效
标题翻译：用于粉末冶金生产成形零件的材料，特别是阀座环或具有高耐磨性的阀导轨
公开(公告)号：US6039785A
公开(公告)日：2000-03-21
申请号：US125612
申请日：1998-10-15
申请人： Kirit Dalal , Ekkehard Kohler , Anil V. Nadkarni
发明人： Kirit Dalal , Ekkehard Kohler , Anil V. Nadkarni
IPC分类号： B22F1/00 , B22F5/00 , C22C1/04 , C22C9/00 , C22C9/01 , C22C32/00 , C22C1/05
CPC分类号： B22F1/0003 , C22C32/0021
摘要： The invention concerns a material for the powder-metallurgical production from a powder mixture containing at least approximately 50 wt. % copper in particular of valve seat rings or valve guides with high resistance to wear and corrosion and high heat conductivity. The starting powder mixture consists of between 50 and 90 wt. % of a basic powder, containing the copper portion, and between 10 and 50 wt. % of a powdery molybdenum-containing alloy flux. The basic powder is a copper powder which is dispersion-hardened by Al.sub.2 O.sub.3, has an Al.sub.2 O.sub.3 content of between 0.1 and 1.1 wt. %, and is produced by pulverizing a Cu--Al melt followed by heating in an oxidizing atmosphere. The invention further concerns the use of a dispersion-hardened powder of this type for the powder-metallurgical production in particular of wear and corrosion-resistant valve seat rings or valve guides with high heat conductivity. Finally, the invention concerns a method of producing such valve seat rings or valve guides.
摘要翻译： PCT No.PCT / EP97 / 00837 371日期：1998年10月15日 102（e）日期1998年10月15日PCT 1997年2月21日PCT PCT。公开号WO97 / 30808 PCT 日期：1997年8月28日本发明涉及一种粉末冶金生产材料，该粉末混合物含有至少约50wt。％铜，特别是阀座环或阀导轨，具有高耐磨损和高导热性。起始粉末混合物由50至90wt。含有铜部分的基础粉末的％，以及10至50重量％％的含钼的合金粉末。碱性粉末是通过Al2O3分散硬化的铜粉末，Al 2 O 3含量为0.1〜1.1重量％。％，并且通过将Cu-Al熔体粉碎，然后在氧化气氛中加热来制备。本发明还涉及使用这种类型的分散硬化粉末用于粉末冶金生产，特别是具有高导热性的耐磨损和耐腐蚀阀座环或导阀。最后，本发明涉及一种生产这种阀座环或阀引导件的方法。

2. 发明申请

US20060201488A1 Method for controlling a solenoid valve 审中-公开
标题翻译：电磁阀控制方法
公开(公告)号：US20060201488A1
公开(公告)日：2006-09-14
申请号：US11401018
申请日：2006-04-06
申请人： Ekkehard Kohler , Wolfgang Messerschmidt
发明人： Ekkehard Kohler , Wolfgang Messerschmidt
IPC分类号： F02D41/20 , H01H47/22
CPC分类号： F02D41/20 , F02D2041/2017 , F02D2041/2031 , F02D2041/2034 , F02D2041/2051 , F02D2041/2055 , H01F7/1844 , H01F2007/185 , H01F2007/1894
摘要： In a method for controlling the opening and/or closing of a solenoid valve, wherein a profile of a current and/or a voltage applied to a coil of the solenoid valve is controlled in order to move a valve control element, a plurality of points in time of the opening and closing movement of the valve control element resulting from physical characteristic values of the current profile and/or solenoid valve are detected, and the time period between the detected points in time of the preceding opening and closing process is used as a control variable for controlling the current profile and/or voltage profile during the opening and closing process.
摘要翻译：在一种用于控制电磁阀的打开和/或关闭的方法中，其中控制施加到电磁阀的线圈上的电流和/或电压的轮廓以移动阀控制元件，多个点检测由当前轮廓和/或电磁阀的物理特征值导致的阀控制元件的打开和关闭运动的时间，并且将先前打开和关闭过程的检测点之间的时间段用作为用于在打开和关闭过程期间控制电流曲线和/或电压曲线的控制变量。

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