Blade of a turbomachine with enlarged peripheral profile depth
US8382438B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2005 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Sep 2, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A blade for an axial-flow turbomachine with a gap-side blade area I which transits into a free blade end and with a hub-side or casing-side blade area II, respectively. Blade 3 forms a flow line profile section with leading edge VK and trailing edge HK which establish forward end point V and rearward end point H, respectively, by a tangent normal to and intersecting with the profile chord, with the distance between these end points being profile depth L. Blade 3 includes an enlargement of profile depth L at a tip of the free blade end which is at least +10 percent and decreases to zero in the blade central section, with the values being non-negative throughout, with the profile enlargement at trailing edge HK being larger than zero at the tip in the gap-side peripheral section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.