Abstract:
Open-loop cooling systems and methods are provided which can be used in many different capacities, including as mobile, personal cooling systems for people engaging in strenuous activities or working in situations where body temperature maintenance is a concern. Efficient use of refrigerant in combination with phase change material provides sustained cooling capability in some embodiments.
Abstract:
A personal air conditioning device cools and moistens environmentally hot and dry blower-forced air using water vaporization occurring on external surface of a hollow fiber micro-porous membrane while water or other liquid coolant is taken from a container by means of internal capillaries of hollow fiber tubes. The device is able to deliver the pre-cooled air flow over any desired body fragment, particularly under a protective vest.
Abstract:
A portable, self-contained race car cooler comprises an enclosure divided interiorly by vented baffles into separate cooling and fan compartments. A removable top covers the enclosure. Air is drawn through the enclosure and between adjacent cooling compartments by an electric fan. A plurality of removable canisters, frictionally fitted through orifices in the top, store “dry ice” for cooling. Each canister is peripherally restrained by a plurality of radially spaced-apart J-hooks emanating from the top that are biased inwardly by an elastic band. The J-hooks peripherally grasp the canisters and provide a detent for snappingly engaging or releasing the canisters. A heat-exchange standoff is secured beneath each canister upon the enclosure floor and comprises a plurality of spaced-apart, parallel rails with air passageways defined between them. Cooler lids removably coupled to the canisters are externally serviceable. Carbon dioxide venting is provided.
Abstract:
An air treatment system for a vehicle includes a first compressor selectively coupled to a first vehicle power source. A second compressor is selectively coupled to a second vehicle power source. A first heat exchanger communicates with an interior space in the vehicle. A second heat exchanger communicates with an environment outside the vehicle. A valve member, in a first position, couples an inlet of each of the first and second compressors to an outlet of the first heat exchanger and an outlet of each of the compressors to an inlet of the second heat exchanger. In a second position, the valve member couples the outlets of the compressors to an inlet of the first heat exchanger and the inlets of the compressors to an outlet of the second heat exchanger. A controller selectively actuates at least one of the first and second compressors and the valve member.
Abstract:
In one embodiment, the invention is a mechanical and synthetic material composition using a cationic carbon base infrastructure that incorporates specially designed compartments for housing thermal modifying inserts. Using both the temperature regulating fabric and one of three optional inserts, depending on desired effect, in combination creates a suitable solution for temperature regulation. By placing the temperature modifying source in its assigned compartment in key locations allows for a transfer of energy throughout the fabrics construction like a conduit and in close proximity to the subject surface.
Abstract:
Embodiments of the present invention provide a device for personal heat control, including a flexible housing comprising a cooling surface, a heating surface thermally insulated from the cooling surface, and a heat transfer unit configured to transfer heat from cooling surface to heating surface. Other embodiments of the present invention provide a system for cooling wearers of impact-resistant helmets, including an impact-resistant outer shell, foam pads affixed to an inside of the impact-resistant outer shell and configured to rest on a wearer's head, thermoelectric cooling devices spaced to avoid interference with foam pads and configured to rest against the head, a heat sink, and heat pipes thermally coupled at one end to thermoelectric cooling devices and at another end to the heat sink, and configured to transfer heat from thermoelectric cooling devices to heat sink with minimal heat loss, the heat pipes spaced to avoid interference with the foam pads.
Abstract:
Human clothing has inner and outer flexible layers that define a space sufficiently large to position a thermal transfer element in any of multiple, non-overlapping positions. The space and the thermal transfer element preferably have cooperating sides of a hook-and-loop attachment. All suitable items of clothing are contemplated, but especially a shirt, jacket or pants that appear to others as a substantially normal garment. Each space has one or more openings, in either the inner or outer layers, and preferably at the shoulders or sides of the torso, or at the pocket areas of pants. The spaces are preferably large, not only relative to the size of a corresponding thermal transfer element, but also to the size of the garment. Thermal transfer elements are preferably disposed in pouches having a thermal insulation on that side, and have only a very thin, thermally transmissive, fabric on the other side.
Abstract:
A personal air conditioning device cools and moistens environmentally hot and dry blower-forced air using water vaporization occurring on external surface of a hollow fiber micro-porous membrane while water or other liquid coolant is taken from a container by means of internal capillaries of hollow fiber tubes. The device is able to deliver the pre-cooled air flow over any desired body fragment, particularly under a protective vest.
Abstract:
A temperature control vest for use in providing cooling for workers subject to extreme temperature work environments. The temperature control vest includes chest-covering pieces and a back-covering piece that are connected by adjustable straps that run over the shoulders of the user and lacing assemblies that pass around the sides of the user. The chest covering and back covering pieces each have one or more detachable panels mounted on their interior surfaces that include compartments holding built-in ice sheets composed of refrigerant cubes for providing cooling to the user. The panels are releasably attached to the chest-covering pieces and back-covering piece so that the panels and the ice sheets can be quickly removed and replaced when the ice becomes melted. The compartments in the panels include fabric mesh layers along their inside surfaces for holding the replaceable ice sheets in contact with the user for cooling and heating purposes while providing a pleasing visual appearance. The compartments and mesh also allow the ice sheets to be inspected to assess the extent to which the refrigerant cubes remain frozen and to detect any damage to the ice sheets indicating that the ice sheets should be removed from the compartments and replaced.