Refrigerators and freezers; air conditioning installations; climatic cabinets for wine; cabinet cooling systems for beve rages, in particular beer; heating and ventilating apparatus; forced aeration systems; de-icing systems; air humidifying systems, in particular for vehicles and flying machines; air treatment systems; heating apparatus, ventilating apparatus and air-conditioning systems (HVAC) for rail vehicles; including energy supplying apparatus therefor; steam heating devices for rail vehicles, and parts and accessories therefor, including steam heating couplings and steam pressure valves; turbines for air conditioning apparatus for air conditioning based on cold air vacuum processes for use in rail vehicles; toilet systems for vehicles, in particular rail vehicles; integrated air management systems, air conditioning systems, cabin pressure systems; components for air management systems, including turbo-engines, heat exchangers, water separators, temperature, pressure and throughput control valves, ram air valve drives; water purification installations; pocket torches, electric