公开(公告)号：US20090246030A1

公开(公告)日：2009-10-01

申请号：US12388063

申请日：2009-02-18

申请人： Kohei TANAKA ,  Yoshimasa CHIBA ,  Sadashi TANAKA ,  Koji HAYASHI ,  Tomohiro NARUSE ,  Takaki FUKUCHI ,  Takeshi KAZAMA

发明人： Kohei TANAKA ,  Yoshimasa CHIBA ,  Sadashi TANAKA ,  Koji HAYASHI ,  Tomohiro NARUSE ,  Takaki FUKUCHI ,  Takeshi KAZAMA

IPC分类号： F01D5/30

CPC分类号： F04D29/24

摘要： To provide a can manufacturing pump impeller in which a stress of a base portion of a blade is prevented from increasing while improving the strength of a joint portion of a hub and a boss. In order to reinforce a joint portion of a hub and a boss, a plate is jointed to the inside of an impeller. In order not to overlap a base portion of a blade and the plate with each other on the hub, an opening portion is provided in the plate around the base portion of the blade on the hub. As a shape of the opening portion, a semicircular shape, a semielliptical shape, a rectangular shape, or a trapezoidal shape can be selected. Further, as a plate shape, a flat plate structure, a shell structure, or a curved structure can be selected.

摘要翻译： 为了提供能够防止叶片的基部的应力的提高的罐式制造泵叶轮，同时提高轮毂和轮毂的接合部的强度。 为了加强轮毂和凸台的接合部分，将板连接到叶轮的内部。 为了不使轮毂上的叶片的基部和板彼此重叠，在板上围绕叶片的基部的毂上设置有开口部。 作为开口部的形状，可以选择半圆形，半椭圆形，矩形或梯形形状。 此外，作为板状，可以选择平板结构，壳结构或弯曲结构。

公开(公告)号：US20100270308A1

公开(公告)日：2010-10-28

申请号：US12765111

申请日：2010-04-22

申请人： Tomohiro NARUSE ,  Tetsuya KUWANO ,  Taiji HASHIMOTO ,  Haruo MIURA ,  Mitsuhiro NARITA

发明人： Tomohiro NARUSE ,  Tetsuya KUWANO ,  Taiji HASHIMOTO ,  Haruo MIURA ,  Mitsuhiro NARITA

IPC分类号： B65D45/00

CPC分类号： F04D17/125 ,  F04D29/4206 ,  F04D29/624

摘要： Size reduction of a barrel-type casing using a shear key is aimed for while ensuring a necessary area of a head cover end surface. A shoulder is formed on the axially outer side of the outer circumferential surface of a head cover. The inner surface of a casing is provided with a circumferentially extending groove. Shear key structure includes a first shear key member disposed in the shoulder and the groove, such that at least a portion of its outer circumferential surface is in contact with the inner circumferential surface of the groove, and a second shear key member disposed adjacent to the first shear key member in the groove, the second shear key member having an axially projecting shoulder, its outer circumferential surface being in contact with an inner circumferential surface of the casing. The first and second shear key members are circumferentially segmented respectively into three or more members, and each member is radially fixed to the casing but not axially fastened to each other, to allow slight displacement between the first and second shear key members by a shear force.

摘要翻译： 针对使用剪切键的筒型壳体的尺寸减小是为了确保头罩端面的必要面积而进行的。 肩部形成在头罩的外周面的轴向外侧。 壳体的内表面设置有周向延伸的凹槽。 剪切键结构包括设置在肩部和凹槽中的第一剪切键构件，使得其外圆周表面的至少一部分与凹槽的内圆周表面接触，并且第二剪切键构件邻近 第一剪切键构件在槽中，第二剪切键构件具有轴向突出的肩部，其外周面与壳体的内周面接触。 第一和第二剪切键构件分别周向地分成三个或更多个构件，并且每个构件径向地固定到壳体而不是轴向地彼此紧固，以允许第一和第二剪切键构件之间的剪切力 。