Shaft composite structure between ceramic turbine rotor and metal member
US4892436A · kind A · utility
3Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1988 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Mar 24, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/21
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a shaft composite structure wherein a ceramic shaft integrally formed with a ceramic turbine rotor is fixed to a metal sleeve integrally formed with a metal rotary shaft of a compressor impeller, a connection edge is located at a position corresponding to a recess for seal ring, and a thickness of tip portion of the metal sleeve is made thin to reduce a stiffness. Therefore, a stress concentration at the connection edge can be eliminated effectively and thus a reliable shaft composite structure can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.