公开(公告)号：US4025247A

公开(公告)日：1977-05-24

申请号：US659196

申请日：1976-02-19

申请人： Noriyuki Kurio ,  Tadashi Ebihara

发明人： Noriyuki Kurio ,  Tadashi Ebihara

IPC分类号： F01C19/10 ,  F01C19/04 ,  F04C27/00

CPC分类号： F01C19/04

摘要： A corner seal member for use in a rotary internal combustion engine is constructed with an apex seal groove and an elongated cavity. The elongated cavity forms a thin wall having a substantially semicircular cross-section in the opposite side of the apex seal groove. The gas pressure delivered into the elongated cavity is advantageously used for urging the corner seal towards the inner surface of the corner seal groove, thereby preventing the gas pressure from leaking into an adjacent working chamber.

摘要翻译： 用于旋转内燃机的角密封件由顶点密封槽和细长腔构成。 细长腔形成在顶点密封槽的相对侧具有基本上半圆形横截面的薄壁。 传递到细长空腔中的气体压力有利地用于将拐角密封件推向角密封槽的内表面，从而防止气体压力泄漏到相邻的工作室中。

公开(公告)号：US4419413A

公开(公告)日：1983-12-06

申请号：US351563

申请日：1982-02-23

申请人： Tadashi Ebihara

发明人： Tadashi Ebihara

IPC分类号： B22F3/03 ,  B22F7/06 ,  B28B3/02 ,  B30B11/00 ,  B30B11/02 ,  B30B15/30 ,  F01L3/22 ,  B22F7/02 ,  B22F3/16 ,  B32B7/02 ,  B32B31/20

CPC分类号： B22F3/03 ,  B22F7/06 ,  B30B11/027 ,  B30B15/306 ,  F01L3/22 ,  Y10T428/12028 ,  Y10T428/12042 ,  Y10T428/12146

摘要： A powder compression molding method for producing a multilayer powder compression molded article having a plurality of different material layers disposed in a compression direction utilizes relative movements between an upper punch, a lower punch, a die having a step formed therein, and two feed shoes. The powder compression molded article thus formed requires a reduced amount of a special layer. The powder compression molding method includes forming a first space by moving the die relative to the lower punch, introducing a first powder into the first space through a first feed shoe, lowering the lower punch relative to the die to form a second space so that an upper surface of the first powder on the step of the die and on the lower punch has a nonuniform height, introducing a second powder into the second space, and moving the upper punch towards the lower punch to compress the first and second powders.

摘要翻译： 用于制造具有沿压缩方向设置的多个不同材料层的多层粉末压缩成型制品的粉末压缩成型方法利用上冲头，下冲头，其中形成有台阶的模具和两个进给鞋的相对运动。 这样形成的粉末压塑制品需要减少特殊层的量。 粉末压缩成型方法包括通过相对于下冲头移动模具来形成第一空间，通过第一供给靴将第一粉末引入第一空间中，相对于模具降低下冲头以形成第二空间， 在模具的台阶上和下冲头上的第一粉末的上表面具有不均匀的高度，将第二粉末引入第二空间，并将上冲头向下冲头移动以压缩第一和第二粉末。

公开(公告)号：US4509722A

公开(公告)日：1985-04-09

申请号：US351385

申请日：1982-02-23

申请人： Tadashi Ebihara

发明人： Tadashi Ebihara

IPC分类号： F01L3/02 ,  B22F5/00 ,  B22F5/10 ,  B22F7/06 ,  F01L3/22 ,  F01L3/00

CPC分类号： F01L3/22 ,  B22F7/06 ,  Y10T29/49306 ,  Y10T428/12028

摘要： A composite valve seat has a valve spot surface zone made of a second sintered alloy which is a special sintered alloy and the remainder of the valve seat is made of a first sintered alloy which is an ordinary low-alloyed sintered alloy. A boundary between the first and second sintered alloys describes a curve which is, with the valve spot surface oriented upward, highest at an outer peripheral surface of the valve seat. The curved boundary gradually falls toward an inner peripheral surface of the valve seat and the shape of the curved boundary is similar to the powder rest curve of the first sintered alloy.

摘要翻译： 复合阀座具有由作为特殊烧结合金的第二烧结合金制成的阀点表面区，阀座的其余部分由作为普通低合金烧结合金的第一烧结合金制成。 第一和第二烧结合金之间的边界描述了一个曲线，其中阀点表面朝向上，在阀座的外周表面处最高。 弯曲边界朝向阀座的内周面逐渐降低，弯曲边界的形状与第一烧结合金的粉末状滞留曲线相似。

公开(公告)号：US4414284A

公开(公告)日：1983-11-08

申请号：US351570

申请日：1982-02-23

申请人： Tadashi Ebihara

发明人： Tadashi Ebihara

IPC分类号： B22F7/06 ,  F02F5/00 ,  F16J9/20 ,  F16J9/26 ,  B22F7/02 ,  B32B7/00

CPC分类号： B22F7/06 ,  F16J9/26 ,  Y10S277/922 ,  Y10T428/12028 ,  Y10T428/12042

摘要： A piston ring produced by a powder metallurgical method has a nearly triangular zone in cross section made of a low density sintered alloy metal powder. One edge of an outer peripheral surface or bottom surface of the piston ring forms a vertex of the triangular zone. The remainder of the piston ring is composed of a high density sintered alloy metal powder. This piston ring has a high abrasion resistance at the area thereof which slides on the cylinder wall and can be produced at low cost.

摘要翻译： 通过粉末冶金方法制造的活塞环具有由低密度烧结合金金属粉末制成的截面近似三角形的区域。 活塞环的外周表面或底表面的一个边缘形成三角形区域的顶点。 活塞环的其余部分由高密度烧结合金金属粉末构成。 该活塞环在其面积上具有高的耐磨性，其在气缸壁上滑动并且可以以低成本生产。