Plate heat exchanger and method for its manufacture
US5184673A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Sep 20, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49366
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for the manufacture of a plate heat exchanger/cooler (1), and to an arrangement for a plate heat exchanger/cooler produced by furnace brazing. When finished, the heat exchanger exhibits a number of passageways (2-7) communicating in parallel via collectors (8a) and intended for a fluid which is cooled. Each of the passageways (2-7) consists of a pair of plates (2a, 2b, . . . 7a, 7b) facing one another. These have openings (2a2, 2b2, . . . 7a2, 7b2) arranged on the ends which, in the finished heat exchanger/cooler, constitute the aforementioned collectors (8a). Spacer washers (10) which define flow openings (10a) for a cooling medium are present between pairs of plates situated adjacent one another. The spacer washers (10) and the plates (2a, 2b, . . . 7a, 7b) and the pairs of plates are joined together at least along their outward-folded edges (2a1, 2b1, . . . 7a1, 7b1) by a furnace brazing process. In each passageway (2-7), a space washer (10) and a distance piece (11) are placed in an area on each end before the plates (2a, 2b, . . . 7a, 7b) are brought into edge-to-edge contact with one another. The plates and spacer washers/distance pieces (10;…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.