Multicircuit heat exchanger
US6564862B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Feb 28, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28D9/0093
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The invention relates to a multicircuit heat exchanger, i.e. a heat exchanger capable of circulating more than two media. Through delimiting zones in the heat exchanger package, a further medium can be placed in heat exchange with one of the two media normally being circulated. Several such delimited zones may be arranged in the same heat exchanger package, and the zones may even overlap each other for mutual heat exchange. The present invention thus provides a multicircuit heat exchanger comprising plates (1) with a pattern of grooves and inlet and outlet connections. The plates are placed in a package and brazed together to form separate ducts for two main media between alternate pairs of plates. According to the invention, at least one delimited zone (8, 9, 10) is defined between alternate pairs of plates, to block off a first medium whereas a second medium is allowed to flow through. The delimited zone has inlets and outlets (3, 5, 7) for circulation of a further medium under heat exchange with the second medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.