A sensor assembly includes a navigation sensor. The sensor assembly includes a heatsink thermally coupled to the navigation sensor. The sensor assembly includes an air conditioning unit. The sensor assembly includes a duct positioned to direct airflow from the air conditioning unit toward the heatsink.

Methods of recirculating clean air in an atmosphere of an enclosure comprise directing an input air stream from the atmosphere of the enclosure through a coiled duct at a rate sufficient to stratify the input air stream within the coiled duct according to a molecular weight of components of the input air stream and to form a heavy fraction stream and a light fraction stream, wherein the heavy fraction stream is relatively enriched in carbon dioxide as compared to the light fraction stream; withdrawing the heavy fraction stream from the coiled duct; and returning the light fraction stream from the coiled duct to the atmosphere of the enclosure.

Two-stage vortex tube assemblies including an internal vortex generation chamber for generating a main vortex and a compressed air inlet having a tangential outlet port for creating a pre-vortex in an inflow of compressed air in a direction of flow of the main vortex. The two-stage vortex assemblies may be utilized in low pressure and low flow applications such as seat climatization, local heating or cooling, etc. Further disclosed are seat constructions and seat climatization systems utilizing a two-stage vortex tube as a single source for heating or cooling.

Two-stage vortex tube assemblies including an internal vortex generation chamber for generating a main vortex and a compressed air inlet having a tangential outlet port for creating a pre-vortex in an inflow of compressed air in a direction of flow of the main vortex. The two-stage vortex assemblies may be utilized in low pressure and low flow applications such as seat climatization, local heating or cooling, etc. Further disclosed are seat constructions and seat climatization systems utilizing a two-stage vortex tube as a single source for heating or cooling.

A temperature control device for heating and/or cooling gases or gas mixtures, in particular for use in the respiratory protection sector. The temperature control device has a housing, a compressed air input, a supply output and a vortex tube with an air inlet, a hot air outlet and a cold air outlet. The vortex tube is installable in at least two final assembly arrangements. In a first arrangement, there is a fluid-conducting connection between the cold air outlet of the vortex tube and the supply output of the temperature control device and, in a second arrangement, there is a fluid-conducting connection between the hot air outlet of the vortex tube and the supply output of the temperature control device. By this configuration, the temperature control device is both a device for heating and cooling respiratory air from mainly the same components with little additional outlay on production and little additional effort during assembly.

A temperature control device for heating and/or cooling gases or gas mixtures, in particular for use in the respiratory protection sector. The temperature control device has a housing, a compressed air input, a supply output and a vortex tube with an air inlet, a hot air outlet and a cold air outlet. The vortex tube is installable in at least two final assembly arrangements. In a first arrangement, there is a fluid-conducting connection between the cold air outlet of the vortex tube and the supply output of the temperature control device and, in a second arrangement, there is a fluid-conducting connection between the hot air outlet of the vortex tube and the supply output of the temperature control device. By this configuration, the temperature control device is both a device for heating and cooling respiratory air from mainly the same components with little additional outlay on production and little additional effort during assembly.

A fire extinguishing system including a fluid storage container configured to store a fire extinguishing agent, and a fluid stream separating device coupled to the fluid storage container, where the fire extinguishing agent passes from the fluid storage container through the fluid stream separating device so that the fluid stream separating device raises a temperature of at least a portion of the fire extinguishing agent flowing through the fluid stream separating device above a boiling point of the fire extinguishing agent at ambient environmental conditions of a discharge location of the fluid stream separating device.

This invention relates generally to the distribution of a flushing gas during a packaging process. More specifically, the invention relates to a system and method for cooling and distributing a flushing gas during such a process that utilizes the gas' lower temperature and increased density to both maintain the flushing gases' placement within a packaging container and displace any undesirable gases there-from.

A vortex tube includes a first end provided with a first outlet; a second end provided with a second outlet; a vortex generating chamber between the first end and the second end; an air inlet leading from a side of the vortex tube into the vortex generating chamber; a first flow passage between the vortex generating chamber and the first outlet; a second flow passage between the first flow passage and the second outlet. The vortex tube includes one or more air guides disposed inside the vortex tube downstream of the vortex generating chamber for increasing laminarity of air flow downstream of the vortex generating chamber. One or more of the air guides is an air guide including plurality of openings, through which openings air can flow. A ventilating system and an elevator are provided for implementing the vortex tube.

A vortex tube includes a first end provided with a first outlet; a second end provided with a second outlet; a vortex generating chamber between the first end and the second end; an air inlet leading from a side of the vortex tube into the vortex generating chamber; a first flow passage between the vortex generating chamber and the first outlet; a second flow passage between the first flow passage and the second outlet. The vortex tube includes one or more air guides disposed inside the vortex tube downstream of the vortex generating chamber for increasing laminarity of air flow downstream of the vortex generating chamber. One or more of the air guides is an air guide including plurality of openings, through which openings air can flow. A ventilating system and an elevator are provided for implementing the vortex tube.