| 摘要 |
A flat heating element consists of at least two wall shells (1, 2) arranged parallel to one another and shaped basically like a sheet, which are rigidly connected to one another circumferentially at the edge to form a flow path for the heating medium between their mutually facing inner broad sides, bear against one another in the regions between their edges, and are spot-welded to one another in the bearing regions. For the purpose of improving the heat output while maintaining the required pressure resistance, the heating element has a design in which the mutually facing inner broad sides of the two wall shelves (1 2) delimit a flat heating medium chamber (12), whose free flow cross-section is partially interrupted only by spot-weld joints distributed between the two wall shelves (1, 2) over the chamber surface. <IMAGE> |
