Fan blades and manufacture methods
US10458428B2 · kind B2 · utility
0Cited by
29References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2014 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Jul 22, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/614
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An airfoil member (100) comprising has a substrate (120) along at least a portion of an airfoil (102) of the airfoil member. A sheath (122) has a channel (144) receiving a portion (160) of the substrate. A plurality of separate spacers (320; 380; 400) are between the sheath and the substrate and have a plurality of gaps between the spacers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.