发明名称 |
CENTRIFUGAL COMPRESSOR, TURBOCHARGER WITH SAID CENTRIFUGAL COMPRESSOR, AND METHOD FOR MANUFACTURING SAID CENTRIFUGAL COMPRESSOR |
摘要 |
An object is to provide a centrifugal compressor in which an axial force applied from a shrink-fit impeller to a sleeve section is ensured even if the sleeve section is separated from a clamp surface in an axial direction of an attachment hole, as well as a turbocharger provided with the centrifugal compressor and a method of producing the centrifugal compressor. An inner peripheral surface of an attachment hole formed on a hub includes a clamp surface and a diameter-widening surface, and an outer peripheral surface of a sleeve section includes a diameter-reducing surface. The diameter-widening surface and the diameter-reducing surface respectively include an impeller-side contacting portion and a sleeve-side contacting portion which contact each other, and a relationship represented by an expression ¸s < atan (d/L) is satisfied, where d is a length from an axis of the attachment hole to the sleeve-side contacting portion in a radial direction of the attachment hole, L is a length from the sleeve-side contacting portion to the clamp surface in the axial direction of the attachment hole, and ¸s is a sleeve inclination angle formed by an intersection of an axis of the sleeve section and a generatrix of a virtual cone which contacts the diameter-reducing surface at the sleeve-side contacting portion. |
申请公布号 |
EP3112692(A1) |
申请公布日期 |
2017.01.04 |
申请号 |
EP20140884105 |
申请日期 |
2014.02.26 |
申请人 |
Mitsubishi Heavy Industries, Ltd. |
发明人 |
YANO, Seigi;HAYASHI, Noriyuki |
分类号 |
F04D29/28;F02B39/00;F04D29/051 |
主分类号 |
F04D29/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|