Guide vane having a connecting tube
US10876414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Dec 29, 2020 |
| Priority date | — |
| Expiry date | Jun 30, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2230/237
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A guide vane for a turbomachine having an outer platform, a blade airfoil protruding from the outer platform, extending in a longitudinal direction and defining a cavity in its interior, an inner platform arranged opposite the outer platform and connected to the blade airfoil, and a connecting tube which passes through the cavity of the blade airfoil in the longitudinal direction. The first free end of the tube is inserted into a through-opening formed in the inner platform and materially bonded to the inner platform, and the second free end of the tube is arranged in a cooling fluid inlet opening formed on the outer platform, away from the edge thereof, and projecting outward from the outer platform. At least one guide is attached to the outer platform and designed to guide the connecting tube in the longitudinal direction in the event of a thermal change in length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.