Heat exchanger and method of manufacturing header pipe for the same
US5842515A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Sep 30, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49393
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat exchanger includes a pair of header pipes spaced a predetermined distance away from each other, a plurality of tubes connected between the header pipes for defining flow paths for a heat exchanging medium and a plurality of fins installed between the tubes for radiating heat from the heat exchanging medium. Each of the header pipes includes a flat bottom portion formed with a plurality of apertures for receiving the plurality of tubes, a pair of vertical walls extending from both side ends of the flat bottom portion and having a plurality of grooves corresponding to the apertures for guiding the tubes, and curved portion extended from the walls and forming a hollow inner space by joining both side edges thereof. The header pipe is manufactured by forming a bottom and a pair of walls approximately perpendicular to the bottom at the side ends of the bottom by bending a sheet member coated with a cladding layer, forming a plurality of apertures for receiving a plurality of tubes in the bottom and a plurality of grooves for guiding the tubes and extending from the apertures in the walls, forming a curved portion by bending both side edges of the vertical walls, and joining the s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.