| CPC H05B 6/109 (2013.01) [H05B 6/108 (2013.01)] | 16 Claims |
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1. A rotary-induction heat generator with direct current excitation for the heating of solid or liquid or gaseous substances, characterised in that the alternating magnetic field required for purposes of induction, that is to say, for the generation of inductive heat, is generated with a DC coil; a static magnetic field is generated, and this static magnetic field is converted by way of a rotating mechanical component into an alternating magnetic field, wherein a DC coil is received by a magnetic ring (20) and is preferably fixedly connected to the latter, wherein the magnetic ring (20) is statically connected to the housing (17) of the rotary-induction heat generator (1), and wherein the static magnetic field (51) generated by the DC coil (29) is converted by way of a rotating mechanical part, specifically a pole wheel (19), into an alternating magnetic field (52), wherein the pole wheel (19) consists of an inner pole ring (53), an outer pole ring (54) and a pole ring carrier (21, 24), by which the static magnetic field (51) is converted into an alternating field (52) in an induction ring (18) axially adjacent to the pole wheel (32), wherein the inner and the outer pole ring have a plurality of radially oriented pole extensions (46, 47), preferably more than ten, which either:
a) mesh with one another, that is to say, are arranged partly radially next to one another, or overlap with one another (FIG. 5a), or
b) do not overlap with one another; instead the pole extensions (46) of the inner pole ring (53) are radially spaced apart from the pole extensions (47) of the outer pole ring (54), wherein the pole extensions of the inner and outer pole ring have a predetermined distance (A) from one another and preferably the number of pole extensions of the inner pole ring (53) corresponds approximately to, or is the same as, the number of pole extensions of the outer pole ring (54).
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