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US 7,802,322 B2Granted
Safety suit
AssigneeDräger Safety AG & Co. KGaA
InventorsJochim Koch, Kim Sascha Steingrube
Life of this patent
Estimating the term…
Abstract
A safety suit has an interior space that is well air conditioned while the weight to be carried along by the user of the safety suit is reduced to a minimum. A heat exchanger surface (5), which is provided with a porous material (17) towards the outside for evaporating liquid, is provided at the safety suit jacket (3).
Claims20
A safety suit comprising:
- a safety suit jacket enclosing an interior space;
- a first blower circulating air in said interior space;
- a heat exchanger surface at said safety suit jacket for condensing liquid carried by said first blower;
- a porous material for evaporating a liquid, said porous material being provided on the outside of the safety suit jacket, said porous material being in contact with said heat exchanger surface;
- a flow channel enclosing the porous material;
- a second blower associated with said first flow channel for delivering ambient air over the surface of the porous material;
- and
- a liquid supply means for supplying cooling liquid for wetting the porous material to form an active cooling structure on one side of said heat exchanger.
5 more elements
A safety suit comprising:
- a safety suit jacket enclosing an interior space;
- a heat exchanger with a heat exchanger surface for condensing liquid;
- a closed circulation circuit with a first blower circulating air in said interior space and leading circulating air over said heat exchanger;
- a porous material for evaporating a liquid, said porous material being provided outside of the safety suit jacket, said porous material being in contact with said heat exchanger surface and receiving condensed liquid from said circulating air via said first blower;
- a flow channel enclosing the porous material;
- a second blower associated with said first flow channel for delivering ambient air over the surface of the porous material;
- and
- a liquid supply means for supplying cooling liquid for wetting the porous material to form an active cooling structure on one side of said heat exchanger.
5 more elements
A safety suit comprising:
- a safety suit jacket enclosing an interior space;
- a heat exchanger with a heat exchanger surface for condensing liquid;
- a closed circulation circuit with a first blower circulating air in said interior space such that said circulated air carries moisture and/or water vapor from a surface of a user's skin to form an air moisture and/or water vapor mixture, said first blower circulating said air moisture and/or water vapor mixture over said heat exchanger, wherein said heat exchanger separates said moisture and/or water vapor from said air mixture to form condensed liquid;
- a porous material for evaporating said condensed liquid, said porous material being provided outside of the safety suit jacket, said porous material being in contact with said heat exchanger surface, said porous material absorbing said condensed liquid;
- a flow channel enclosing the porous material;
- a second blower associated with said first flow channel, said second blower moving ambient air from a position outside said safety suit through said flow channel to another position outside said safety suit, wherein said ambient air passes over the surface of the porous material such that said ambient air carries said condensed liquid in said porous material to said another position outside said safety suit;
- and
- a liquid supply means for supplying cooling liquid for wetting the porous material to form an active cooling structure on one side of said heat exchanger.
5 more elements
Dependencies are inferred from the claim text.