초록 ▼

The invention describes a heating apparatus comprising at least one heater (9) in which one or more electric heating elements (11) are arranged, and at least one heat transmitter (1), which is connected with the at least one heater (9), comprises heat transmitter surfaces and is formed from an extru

The invention describes a heating apparatus comprising at least one heater (9) in which one or more electric heating elements (11) are arranged, and at least one heat transmitter (1), which is connected with the at least one heater (9), comprises heat transmitter surfaces and is formed from an extruded profile (1a, 28, 28a) in which the at least one heater (9) is fitted, in which at least part of the walls (6, 22, 22a) of the extruded profile (1a), which are not in contact with a heating element (11), is provided with openings through which a gaseous or liquid medium can flow through the extruded profile (1a, 28, 28a) in transverse direction to the direction of extrusion (17).

대표청구항 ▼

1. A heating apparatus, comprising: at least one extruded heat transmitter having heat transmitter surfaces;at least one longitudinal chamber formed in each transmitter along the direction of extrusion, each chamber being closed transversely to the direction of extrusion yet open in the direction of

1. A heating apparatus, comprising: at least one extruded heat transmitter having heat transmitter surfaces;at least one longitudinal chamber formed in each transmitter along the direction of extrusion, each chamber being closed transversely to the direction of extrusion yet open in the direction of extrusion; andat least one heating element in disposed in each longitudinal chamber; andtransverse openings formed through said extruded heat transmitter in a direction transverse to the direction of extrusion, the transverse openings enabling transverse gaseous or liquid medium flow through the extruded heat transmitter in the direction transverse to the direction of extrusion. 2. The heating apparatus as defined in claim 1, wherein part of the openings in the walls of the extruded transmitter are cutouts or holes. 3. The heating apparatus as defined in claim 1, wherein at least part of the openings in the walls of the extruded transmitter is formed by slits. 4. The heating apparatus as defined in claim 3, wherein portions of the walls of the extruded transmitter that are delimited by slits are bent off from the respective wall. 5. The heating apparatus as defined in claim 4, wherein the portions of the walls of the extruded transmitter that are delimited by the slits are bent into the interior of the profile. 6. The heating apparatus as defined in claim 1, wherein all walls of the extruded transmitter that are not in contact with a heating element are provided with such openings. 7. The heating apparatus as defined in claim 1, wherein the at least one chamber has a closed design viewed in a section through the extruded heat transmitter and transverse to the direction of the chambers. 8. The heating apparatus as defined in claim 1, wherein the heat transmitter forms a housing for the at least one heater. 9. The heating apparatus as defined in claim 8, wherein the at least one heater does not have a separate housing. 10. The heating apparatus as defined in claim 1, wherein the at least one heater is pressed together with the extruded heat transmitter profile or the chambers. 11. The heating apparatus as defined in claim 1, wherein a plurality of heating elements are arranged along a straight line in the heating apparatus. 12. The heating apparatus as defined in claim 1, wherein the heating elements in the at least one extruded heat transmitter are arranged in pairs one beside the other. 13. The heating apparatus as defined in claim 1, wherein all heating elements the heating apparatus are accommodated in a single heat transmitter. 14. The heating apparatus as defined in claim 1, wherein all heating elements are arranged in a single extruded heat transmitter. 15. The heating apparatus as defined in claim 1, wherein the extruded heat transmitter comprises further chambers beside the longitudinal chambers for the heater, said further chambers extending in parallel to the longitudinal chambers. 16. The heating apparatus as defined in claim 1, wherein the longitudinal chambers are directly or indirectly connected by webs that do not contain any further chambers. 17. The heating apparatus as defined in claim 16, wherein the webs are plano-concave or biconcave in cross-section. 18. The heating apparatus as defined in claim 1, wherein the extruded heat transmitter extends beyond the longitudinal chambers for the heater on both sides. 19. The heating apparatus as defined in claim 1, wherein the extruded heat transmitter has a varying wall thickness. 20. The heating apparatus as defined in claim 19, wherein the wall thickness of the outer walls of the extruded heat transmitter varies steadily between the areas of the greatest and the smallest thickness. 21. The heating apparatus as defined in claim 16, wherein a circumferential wall of the two outer longitudinal chambers transitions, on a side opposite webs, to a wall that extends from the circumferential wall of the longitudinal chambers in a direction away from the webs. 22. The heating apparatus as defined in claim 16, wherein webs and/or the walls that extend from the circumferential wall of the hollow chambers and that project to the outside are provided with ribs and/or are roughened. 23. The heating apparatus as defined in claim 22, wherein the ribs extend in the direction of extrusion. 24. The heating apparatus as defined in claim 1 wherein the longitudinal chamber has a rectangular cross-section, with two narrow sides and two broad sides, and that the broad sides form outer walls whereas further walls of the extruded profile project from the narrow sides. 25. A heating apparatus, comprising: at least one heating element disposed in a longitudinal chamber;at least one extruded heat transmitter having heat transmitter surfaces and forming walls of the longitudinal chamber, said longitudinal chamber being closed transversely to the direction of extrusion yet open in the direction of extrusion; andtransverse openings passing through said extruded heat transmitter in a direction transverse to the direction of extrusion, the transverse openings enabling a gas or liquid medium flow through the extruded heat transmitter passing in a direction transverse to the longitudinal chamber and direction of extrusion. 26. A heating apparatus, comprising: at least one heating element disposed in a longitudinal chamber;at least one extruded heat transmitter having heat transmitter surfaces that are fitted to a longitudinal housing, said longitudinal chamber being closed transversely to the direction of extrusion yet open in the direction of extrusion; andtransverse openings passing through said extruding heat transmitter in a direction transverse to the direction of extrusion, the transverse openings enabling a gas or liquid medium flow through the extruded heat transmitter passing in a direction transverse to the longitudinal housing and direction of extrusion.