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公开(公告)号：US07219524B2
公开(公告)日：2007-05-22
申请号：US11305040
申请日：2005-12-19
IPC分类号： B21D28/00
CPC分类号： F02M61/168 , B21K3/00
摘要： A high-pressure piping part includes a body structure forged in a closed space. The body structure is formed to include a main body portion formed by forward extrusion and side arm portions formed by side extrusion. The main body portion has therein a fiber flow formed along a passage, and the side arm portion has therein a fiber flow formed along the passage. Therefore, the direction in which stress is applied to the passage of the body structure by an internal pressure is approximately perpendicular to the directions of the fiber flows, thereby improving the degree of allowance of the resistance to pressure of the body structure for an injector.
摘要翻译： 高压管道部分包括锻造在封闭空间中的主体结构。 主体结构形成为包括通过向前挤压形成的主体部分和通过侧向挤压形成的侧臂部分。 主体部分具有沿着通道形成的纤维流，并且侧臂部分中具有沿着通道形成的纤维流。 因此，通过内部压力对身体结构的通过施加应力的方向大致垂直于纤维流动的方向，从而提高了喷射器的主体结构的耐压力的容许度。
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公开(公告)号：US20060137423A1
公开(公告)日：2006-06-29
申请号：US11305040
申请日：2005-12-19
IPC分类号： B21K1/14
CPC分类号： F02M61/168 , B21K3/00
摘要： A high-pressure piping part includes a body structure forged in a closed space. The body structure is formed to include a main body portion formed by forward extrusion and side arm portions formed by side extrusion. The main body portion has therein a fiber flow formed along a passage, and the side arm portion has therein a fiber flow formed along the passage. Therefore, the direction in which stress is applied to the passage of the body structure by an internal pressure is approximately perpendicular to the directions of the fiber flows, thereby improving the degree of allowance of the resistance to pressure of the body structure for an injector.
摘要翻译： 高压管道部分包括锻造在封闭空间中的主体结构。 主体结构形成为包括通过向前挤压形成的主体部分和通过侧向挤压形成的侧臂部分。 主体部分具有沿着通道形成的纤维流，并且侧臂部分中具有沿着通道形成的纤维流。 因此，通过内部压力对身体结构的通过施加应力的方向大致垂直于纤维流动的方向，从而提高了喷射器的主体结构的耐压力的容许度。
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公开(公告)号：US07073256B2
公开(公告)日：2006-07-11
申请号：US10688984
申请日：2003-10-21
CPC分类号： H01T21/02 , Y10T29/49169 , Y10T29/49218 , Y10T29/49913 , Y10T29/49918 , Y10T29/49929 , Y10T29/49945 , Y10T29/53204
摘要： In a method of manufacturing a center electrode for a spark plug, a core member is press-fitted into a metal cup and, thereafter, a cold-forging process is performed to form a small-diameter portion at a closed end of the metal cup. The small-diameter portion is completely free from deformation which may occur during press-fitting operation. Thus, the small-diameter portion has excellent accuracy in shape. Furthermore, since the press-fitting is performed before the cold-forging of the small-diameter portion, it is possible to increase the press-fitting load or pressure to the extent that the core member and the metal cup are joined together with a sufficient degree of adhesion which will insure the a center electrode to have good thermal conductivity.
摘要翻译： 在制造用于火花塞的中心电极的方法中，将芯部件压配合到金属杯中，然后进行冷锻工艺，以在金属杯的封闭端形成小直径部分 。 小直径部分完全没有在压配合操作期间可能发生的变形。 因此，小直径部的形状精度优异。 此外，由于在小直径部分的冷锻之前进行压配，可以将压配载荷或压力增加到芯部件和金属杯以足够的方式接合在一起的程度 这将确保中心电极具有良好的导热性。
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