公开(公告)号：US09500084B2

公开(公告)日：2016-11-22

申请号：US13775693

申请日：2013-02-25

Applicant: Pratt & Whitney Canada Corp.

Inventor： Raman Warikoo ,  Hien Duong ,  Jason Nichols ,  Tsukasa Yoshinaka

IPC: F01D5/14 ,  F01D5/04 ,  F04D29/28

CPC classification number: F01D5/141 ,  F01D5/043 ,  F04D29/284

Abstract: An impeller for increasing the pressure of a fluid circulating in an annular fluid path, the impeller comprising: a plurality of centrifugal compressor vanes circumferentially interspaced around the axis of the annular fluid path, the plurality of compressor vanes extending from an axially-oriented inlet to a radially-oriented outlet, and each having an inner edge and a free edge, the free edge of the plurality of compressor vanes coinciding with an outer limit of the annular fluid path, and a hub having a solid-of-revolution shape centered around an axis, the hub having an outer hub surface forming an inner limit to the annular fluid path and to which the inner edge of the plurality of centrifugal vanes is secured, the outer hub surface having a portion which leans forward, forming an axial recess therein.

Abstract translation: 一种用于增加在环形流体路径中循环的流体的压力的叶轮，所述叶轮包括：围绕所述环形流体路径的轴线周向间隔的多个离心压缩机叶片，所述多个压缩机叶片从轴向定向的入口延伸到 径向定向的出口，并且每个具有内边缘和自由边缘，多个压缩机叶片的自由边缘与环形流体路径的外部极限相重合，并且具有围绕 所述轮毂具有形成所述环形流体路径的内部极限的外部毂表面，并且所述多个离心叶片的内部边缘被固定到所述外部毂表面上，所述外部毂表面具有向前倾斜的部分，在其中形成轴向凹部 。

公开(公告)号：US20140241901A1

公开(公告)日：2014-08-28

申请号：US13775693

申请日：2013-02-25

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Raman Warikoo ,  Hien Duong ,  Jason Nichols ,  Tsukasa Yoshinaka

IPC: F01D5/14

CPC classification number: F01D5/141 ,  F01D5/043 ,  F04D29/284

Abstract: An impeller for increasing the pressure of a fluid circulating in an annular fluid path, the impeller comprising: a plurality of centrifugal compressor vanes circumferentially interspaced around the axis of the annular fluid path, the plurality of compressor vanes extending from an axially-oriented inlet to a radially-oriented outlet, and each having an inner edge and a free edge, the free edge of the plurality of compressor vanes coinciding with an outer limit of the annular fluid path, and a hub having a solid-of-revolution shape centered around an axis, the hub having an outer hub surface forming an inner limit to the annular fluid path and to which the inner edge of the plurality of centrifugal vanes is secured, the outer hub surface having a portion which leans forward, forming an axial recess therein.

Abstract translation: 一种用于增加在环形流体路径中循环的流体的压力的叶轮，所述叶轮包括：围绕所述环形流体路径的轴线周向间隔的多个离心压缩机叶片，所述多个压缩机叶片从轴向定向的入口延伸到 径向定向的出口，并且每个具有内边缘和自由边缘，多个压缩机叶片的自由边缘与环形流体路径的外部极限相重合，并且具有围绕 所述轮毂具有形成所述环形流体路径的内部极限的外部毂表面，并且所述多个离心叶片的内部边缘被固定到所述外部毂表面上，所述外部毂表面具有向前倾斜的部分，在其中形成轴向凹部 。