Method of manufacturing centrifugal rotary machine and centrifugal rotary machine
US11073159B2 · kind B2 · utility
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1References
12Claims
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Assignee
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Key dates
| Filing date | Feb 3, 2020 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Mar 29, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/122
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
What is provided is a method of manufacturing a centrifugal rotary machine including: a fixing step S1 of fixing a return vane body having a virtual airfoil curved forward in a rotation direction of a rotation shaft as it goes inward in a radial direction and formed by a pressure surface recessed forward in the rotation direction and a negative pressure surface protruding forward in the rotation direction onto a guide flow path; and a cutting step S2 of forming a cut surface by cutting a portion including an inner radial end portion of the return vane body from the pressure surface to the negative pressure surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.