Abstract: In order to reduce emissions from a liquid-cooled internal combustion engine, the cooling liquid of the internal combustion engine is heated by a heat generator that is driven by the internal combustion engine as long as the working temperature of the internal combustion engine is below a predetermined value. The heat generator includes a driven rotor and a stator, in which the rotor when rotated induces electric currents that generate heat. The rotor includes a soft magnetic material and supports a plurality of permanent magnets, which generate a magnetizing field of the rotor. The stator has a ring of non-magnetic, electrically conductive material. The ring is arranged along the periphery of the rotor such that the magnetizing field of the rotor passes through the ring. A chamber which likewise extends along the periphery of the rotor and of which the stator is at least part, permits the circulation of a liquid for absorbing the heat generated in the stator ring, when the rotor is driven to rotate.

Abstract: A holder for household implements, especially a can opener, comprises a bracket (10) attached to a supporting surface and having at its end facing away from the supporting surface a transverse circular opening. A member of the casing (12) of the household implement is cylindrical and insertable in the opening from either side of the bracket (10). The casing member has two sets of axially spaced-apart ridges (22, 24). The first outer set constitutes bayonet joint ridges (22), corresponding bayonet joint ridges (26) on a clamping ring (14) being turned to engage with said first bayonet joint ridges (22) to secure the casing member in the opening in that the ring (14) and an abutment (13) on the casing (12) are pressed against the opposite sides of the bracket.