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1. 发明授权

US06553956B2 Composite lightweight valve for internal combustion engines 失效
公开(公告)号：US06553956B2
公开(公告)日：2003-04-29
申请号：US09922229
申请日：2001-08-04
申请人： Pavel Hora , Martin Schlegl , Karl-Heinz Thiemann
发明人： Pavel Hora , Martin Schlegl , Karl-Heinz Thiemann
IPC分类号： F02N300
CPC分类号： F02F1/38 , F01L3/02 , F01L3/20 , F02B2023/108 , F02F1/4221 , Y10T29/49298 , Y10T29/49307
摘要： In a composite lightweight valve for internal combustion engines having a solid valve head provided with a center opening and a valve stem received in the center opening of the valve head in a positively locking manner, the valve components are permanently joined to one another by hot upsetting so as to be capable of withstanding the thermal and mechanical effective during engine operation.

2. 发明申请

US20090165525A1 Method and device for the production of a stamping with almost smooth cutting and enlarged functional surface 有权
标题翻译：用于生产具有几乎平滑切割和扩大功能表面的冲压的方法和装置
公开(公告)号：US20090165525A1
公开(公告)日：2009-07-02
申请号：US12286008
申请日：2008-09-26
申请人： Ulrich Schlatter , Pavel Hora
发明人： Ulrich Schlatter , Pavel Hora
IPC分类号： B21D28/02 , B21D31/00 , B21D45/02
CPC分类号： B21D28/16
摘要： A method and device for production of stampings with an almost smooth cutting and enlarged functional surface, especially fine blanking and/or forming a workpiece out of a flat strip, wherein flat strip is clamped between an upper part consisting of a shearing punch, a pressure pad, a V-shaped projection and an ejector arranged on the pressure pad, and a lower part consisting of cutting die, ejector and an inner form stamp. By adjusting the state of stress in the cutting zone to a position oriented compressive stress by movement slightly retarded with regard to movement of the shearing punch additionally pressing in material in a direction almost perpendicular to the cutting direction by a tool element acting with controlled force depending on the part geometry and thickness of the workpiece parallel to the cutting line between shearing punch and cutting die, tears at cutting and reduced rollover are achieved.
摘要翻译：一种用于生产具有几乎平滑的切割和扩大的功能表面的冲压件的方法和装置，特别是从扁平条带中切割和/或形成工件，其中扁平带夹在由剪切冲头组成的上部之间，压力衬垫，配置在压力垫上的V形突起和喷射器，以及由切割模具，喷射器和内部形状印模组成的下部。通过相对于剪切冲头的移动稍微延迟的剪切区域中的应力状态，通过在与受切割力作用的工具元件上以大致垂直于切割方向的方向另外按压在材料中的运动稍微延迟在平行于剪切冲头和切割模之间的切割线的工件的几何形状和厚度上，实现了切割时的撕裂和减少的翻转。

3. 发明授权

US08939003B2 Method and device for the production of a stamping with almost smooth cutting and enlarged functional surface 有权
公开(公告)号：US08939003B2
公开(公告)日：2015-01-27
申请号：US12286008
申请日：2008-09-26
申请人： Ulrich Schlatter , Pavel Hora
发明人： Ulrich Schlatter , Pavel Hora
IPC分类号： B21D28/16
CPC分类号： B21D28/16
摘要： A method and device for production of stampings with an almost smooth cutting and enlarged functional surface, especially fine blanking and/or forming a workpiece out of a flat strip, wherein flat strip is clamped between an upper part consisting of a shearing punch, a pressure pad, a V-shaped projection and an ejector arranged on the pressure pad, and a lower part consisting of cutting die, ejector and an inner form stamp. By adjusting the state of stress in the cutting zone to a position oriented compressive stress by movement slightly retarded with regard to movement of the shearing punch additionally pressing in material in a direction almost perpendicular to the cutting direction by a tool element acting with controlled force depending on the part geometry and thickness of the workpiece parallel to the cutting line between shearing punch and cutting die, tears at cutting and reduced rollover are achieved.

4. 发明授权

US5054195A Process for the production of a valve 失效
标题翻译：生产阀门的过程
公开(公告)号：US5054195A
公开(公告)日：1991-10-08
申请号：US578288
申请日：1990-09-06
申请人： Volker Keck , Pavel Hora , Walter Conradt
发明人： Volker Keck , Pavel Hora , Walter Conradt
IPC分类号： B21K1/22 , B23K26/28 , B23P15/00 , F01L3/02
CPC分类号： F01L3/02 , B21K1/22 , B23K26/28 , B23P15/002 , F01L3/14 , Y10T29/49309 , Y10T29/49311 , Y10T29/49313 , Y10T29/49314
摘要： A process for the production of a valve, in particular a charge cycle valve of an internal-combustion engine, having a separately produced hollow valve shank with a widening shank section arranged at the valve-side end, which is connected to a valve disk of highly heat resistant material. The valve shank is produced from a tubular starting material by cold forming to the shank diameter, and subsequently a transitional region lying between reduced valve shank and starting material is shaped as a shank section widening in the form of an arc. The valve shank is severed at the widening shank section at a point corresponding to the diameter of the point of connection between valve disk and valve shank.
摘要翻译：一种用于生产阀门的方法，特别是内燃机的充电循环阀，其具有单独制造的中空阀杆，所述中空阀杆具有布置在阀侧端处的加宽柄部分，该加宽柄部分连接到阀瓣端高耐热材料。阀杆由管状起始材料通过冷成形制成柄直径，随后位于减压阀柄与起始材料之间的过渡区形成为以弧形加宽的柄部。在对应于阀盘和阀杆之间的连接点的直径的点处，在加宽柄部分处切断阀柄。

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