Abstract: A liquid container for motor vehicles, especially for an aqueous urea solution, is provided. The container has an interior space into which the liquid can be fed, and also has an upwardly disposed wall to close off the interior space of the container in a fluid type manner. Provided between a maximum liquid level at a maximum filling state in the interior space of the container, and an inner side of the upwardly disposed container wall, is a free space that corresponds to an increase in volume, including the “blooming”, of the liquid that has frozen in the interior space of the container.

Abstract: A liquid container for motor vehicles, especially for an aqueous urea solution, is provided. The container has an interior space into which the liquid can be fed, and also has an upwardly disposed wall to close off the interior space of the container in a fluid type manner. Provided between a maximum liquid level at a maximum filling state in the interior space of the container, and an inner side of the upwardly disposed container wall, is a free space that corresponds to an increase in volume, including the “blooming”, of the liquid that has frozen in the interior space of the container.

Abstract: An exhaust gas system with a particulate filter and a regenerating burner, whose hot gas outlet is provided in the vicinity of a closed end of the filter in the form of a plurality of openings, which are arranged in one or more planes parallel to the entry surface of the particulate filter. Due to the splitting up of the hot gas flow in the burner into a plurality of smaller flows of hot gas, the mixing with the exhaust gas is so improved that directly downstream from the flame tube of the burner there is a substantially complete equalization of temperature whereby the particulate filter may be positioned very close to the burner.

Abstract: A method for the automatic control of absorption refrigeration plant or a heat pump, by control of the supply of refrigerant to the evaporator of the plant as dependent on the temperature and the pressure of the vapor issuing from the evaporator in such a way that there is a slight degree of overheating of the vapor. At the same time the boiler power is varied in accordance with the temperature of the refrigerant vapor emerging from the boiler. The cooling for the expelled refrigerant vapor is provided by the rich solution from an absorber in a dephlegmatizer having two stages and the solution cooling circuit includes an intermediate cooler for enhancing the rectifying process when marginal conditions are unfavorable.