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CN104781560B 布置为适应热膨胀的旋拧到轴上的涡轮增压器叶轮 有权 转让

布置为适应热膨胀的旋拧到轴上的涡轮增压器叶轮
摘要：
提供了连接起来的叶轮和轴。所述轴具有第一部件，所述第一部件设置有携带螺纹的螺纹部，该螺纹部旋拧到所述叶轮的相应的螺纹部。所述轴还具有第二部件，所述第二部件设置有邻接表面，用于当螺纹部被旋拧在一起从而拧紧螺纹以在所述叶轮和所述轴之间提供旋转固定连接时，接合所述叶轮的相应的邻接表面。所述第一部件相对于所述第二部件在接头处被旋转地固定。所述轴的螺纹部从所述轴的邻接表面轴向隔开第一距离，所述轴的螺纹部从所述接头处轴向隔开第二距离，所述第二距离大于所述第一距离。所述轴的螺纹部和所述接头在所述叶轮的同一侧。所述叶轮具有连接器，所述连接器设置有相应的螺纹部和相应的连接邻接表面。所述连接器相对于所述叶轮的剩余部分被旋转地固定。
摘要（英）：

A connected impeller and shaft is provided. The shaft has a first part which provides a threaded portion carrying a thread which screws onto a corresponding threaded portion of the impeller. The shaft also has a second part which provides an abutment surface for engaging a corresponding abutment surface of the impeller when the threaded portions are screwed together, thereby tightening the threads to provide a rotationally fixed connection between the impeller and the shaft. The first part is rotationally fixed relative to the second part at a joint. The threaded portion of the shaft is axially spaced a first distance from the abutment surface of the shaft. The threaded portion of the shaft is axially spaced from the joint by a second distance which is greater than the first distance. The threaded portion of the shaft and the joint are on the same side of the impeller. The impeller has a connector which provides the corresponding threaded portion and the corresponding abutment surface. The connector is rotationally fixed relative to the rest of the impeller.

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