Abstract: An air conditioning system, in particular for a motor vehicle, comprising a refrigerant circuit having at least one compressor, and comprising a coolant circuit having an external heat exchanger which is arranged in a heat pump system, wherein a redundant heat source is provided which is integrated in the heat pump system.

Abstract: An air conditioning system, in particular for a motor vehicle, comprising a refrigerant circuit having at least one compressor, and comprising a coolant circuit having an external heat exchanger which is arranged in a heat pump system, wherein a redundant heat source is provided which is integrated in the heat pump system.

Abstract: To make a series of spiral filament sections (6) joined by separating zone 5) extending essentially longitudinally of the core wire (4) which, after the filaments have been made and severed in the separating zones, is etched out of the spiral sections. To form the separating zones, a pincer system (7) having two jaws engage the core wire just after a filament section has been wrapped by a winding head (1) about the core wire. The pincer system has jaws which are sufficiently long, or have jaw elements (10,11) spaced from each other by a distance (d) corresponding to the length of the separating zone. Upon subsequent rotation of the winding head, a next spiral filament section (6) will be wrapped about the core wire, spaced from the preceding one by the spacing (d) of the jaw elements (10,11) or the length of the jaws (8). The pincer system travels longitudinally with the core wire upon formation of the spiral filament section.