Spiral heat exchanger
US6644391B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Mar 19, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D9/04
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a spiral heat exchanger including at least two spiral sheets (1, 2) extending along a respective spiral-shaped path about a common center axis (x) and forming at least two spiral-shaped, substantially parallel flow channels (4, 5). Each flow channel (4, 5) permits a heat exchange fluid to flow in a substantially tangential direction with respect to the center axis (x). Each flow channel includes a radially outer orifice, which forms an outlet or an inlet of the respective flow channel and which is located at a radially outer part of the respective flow channel and a radially inner orifice, which enables communication between the respective flow channel and a respective inlet/outlet chamber (13, 14). The center axis (x) extends through the inlet/outlet chamber of the radially inner orifice. The spiral heat exchanger includes a center body (3) extending around the center axis (x) and being closed with respect to the flow channels (4, 5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.