Extruded manifold with multiple passages and cross-counterflow heat exchanger incorporating same
US5941303A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Nov 4, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2225/08
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cross-counterflow heat exchanger comprising a pair of identical and identically-oriented, spaced manifolds and a plurality of parallel heat exchanger tubes extending between the manifolds. Each of the manifolds has an interior, longitudinally-extending dividing wall. In a 2n pass heat exchanger, each manifold is symmetric about a mirror plane, the dividing wall is configured to define n+1 upper channels and n lower channels, and the passages of the heat exchanger tubes are divided into 2n flow paths, n being a positive integer. In a 2n+1 pass heat exchanger, each manifold is symmetric about a rotation axis, the dividing wall is configured to define n+1 upper channels and n+1 lower channels, and the passages of th heat exchanger tubes are divided into 2n+1 flow paths, n again being a positive integer. Further, in a 2n pass heat exchanger, the dividing wall of each of the manifolds includes 2n-1 vertical webs, and each of the heat exchanger tubes includes 2n-1 partitions dividing the passages into 2n flow paths; while in a 2n+1 heat exchanger, the dividing wall of each of the manifolds includes including 2n vertical webs, and each of the heat exchanger tubes includes 2n partitions …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.