Heat exchanger with separate helical ducts
US4577683A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 25, 1984 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | May 25, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/398
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger for indirect heat transfer between fluid media includes a duct member with the space in its interior divided by a separating wall extending transversely of the duct member axis into a pair of partial spaces. Webs located within the partial spaces and extending helically around the duct member axis form a pair of ducts in each partial space. One fluid medium is circulated through one duct and the other fluid medium through the other duct. The ducts in each partial space are interconnected by passages extending through the separating wall so that the fluid media flow through both partial spaces. The ends of the duct member spaced from the separating wall are closed by a combination seal and cover plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.