Heat transfer element assembly
US4512389A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Dec 19, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/042
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A rotary regenerative heat exchanger (2) for transferring heat from a hot fluid to a cold fluid by means of an assembly (30) of heat transfer element which is alternately contacted with the hot and cold fluid. The heat transfer element assembly (30) is comprised of a plurality of first and second heat absorbent plates (32,34) stacked alternately in spaced relationship. The spacing between adjacent first and second plates (32,34) is maintained by spacers which comprise V-shaped folds (38A and 38B) crimped in the first plates (32) and second plates (34), respectively, at spaced intervals along the plates. The folds (38A) in the first plates (32) are spaced equally apart by a first interval, while the folds (38B) in the second plates (34) are also spaced equally apart but at a second interval which is not equal to the first interval. In this manner, the folds in adjacent plates will not line up and nesting of adjacent plates is precluded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.