Heat exchanger folded from a single metal sheet and having two separate chambers
AssigneeNFT Nanofiltertechnik GmbH
InventorsDaniel Krohn, Simon Jocham
Life of this patent
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Abstract
A heat exchanger with a housing comprising two chambers separated by a partition plate, with each chamber comprising an inlet opening and an outlet opening for fluids. The housing and the partition plate are formed from a single metal sheet, the partition plate is formed from a middle area of the metal sheet, comprising a plurality of ribs and channels running alternately in parallel, and the housing is formed from side areas of the metal sheet which are folded along bend lines.
Claims8
A heat exchanger with a housing comprising two chambers separated by a partition plate, each chamber comprising an inlet opening and an outlet opening for fluids, wherein
- the housing and the partition plate are formed from a single metal sheet,
- the partition plate is formed from a middle area of the metal sheet, comprising a plurality of ribs and channels running alternately in parallel,
- the housing is formed from side areas of the metal sheet which are folded along bend lines, and
- wherein the ribs and channels at the ends of the middle area are pressed into flat end areas and these end areas are connected to one of the side areas in a fluid-tight manner.
Method of manufacturing a heat exchanger with a housing, comprising two chambers separated by a partition plate, each chamber comprising an inlet opening and an outlet opening for fluids, wherein the housing and the partition plate are formed from a single metal sheet, wherein the partition plate is formed from a middle area of the metal sheet and includes a plurality of ribs and channels running alternately in parallel, and the housing is formed from side areas of the metal sheet, the method comprising the following steps:
- providing the flat first metal sheet;
- cutting or stamping out openings in the flat metal sheet to form the inlet and outlet openings for the heat exchanger;
- shaping of the middle area of the metal sheet to form the plurality of parallel ribs and channels;
- pressing the ribs and channels at ends of the middle area into flat end areas;
- folding of side areas, adjacent to the middle area on both sides, along parallel bend lines and connecting each of the side areas to a respective one of the flat end areas in a fluid-tight manner to form the housing, and
- tightly connecting of end edges of the two side areas with edges on the bend lines which are directly adjacent to the middle area.
Dependencies are inferred from the claim text.