Method for attaching an air duct to a recuperator core
US6860011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Mar 31, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53113
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of attaching an air duct to a recuperator core may include welding a pair of butterpasses along a length of each of a plurality of core portions, connecting the plurality of core portions to one another to form the recuperator core and a pair of butterpasses extending along a length of the recuperator core, and attaching the air duct to the recuperator core along at least a portion of the pair of butterpasses. The method may also include controllably moving a welding torch into the air duct and along substantially the length of the recuperator core and controllably welding each butterpass to the air duct along substantially the length of the recuperator core without adding metal to the weld.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.