Method for assembly of serpentine heat exchanger
US4942654A · kind A · utility
11Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1989 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | May 24, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53122
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Serpentine heat exchanger tubes are formed with spaces smaller than the fins which must fit in the spaces, the tubes are elastically spread apart so that tubes can be inserted, and the tubes are then allowed to contract to grip the elements for good contact and to help maintain the assembly until a brazing operation. A machine for inserting the fins has spreader blades for insertion into the tube spaces remote from the tube bends, and including sets of blades which then are moved toward the bends to fully dilate the spaces to permit easy insertion of the fins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.