Method for lubricating interior of heat exchanger tube
US9403202B2 · kind B2 · utility
1Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Sep 23, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23P15/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of lubricating an interior of a tube includes applying a lubricant including a mixture of an additive and a solvent into an interior of a tube. A flow of drying agent is injected into a first end of the tube to force the solvent from the interior of the tube via a second end of the tube thereby leaving a coating of additive at the interior of the tube. The drying agent is heated to remove additional solvent from the interior of the tube via evaporation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.