According to foreign media reports, under normal circumstances, diving systems rely on some form of compressed air, but there are certain restrictions on their use. However, a new prototype in Austria uses a more sustainable air supply: ExoLung converts divers' swimming movements into air movements, so as long as divers continue to swim, the air they breathe will remain smooth.
Like other diving systems provided on the ground, ExoLung's buoy floats on the water surface, serving as both a safety device and an air intake device. The hose connects the buoy with the water bell worn in the front of the body. In the hard shell of the diving bell, the collapsible water bag is fixed on the leg strap tied to the diver's foot.
When the diver stretches out his or her leg, the seat belt pulls the airbag and sucks in air when the water is pushed out. After the leg is compressed, loosen the waistband, refill the airbag into the hard shell by water pressure, and inhale the compressed air.
The limitation of battery power or compressed air tank limits the other hardware provided by ground and portable breathing between snorkeling and scuba diving. The AirBuddy system funded by Indiegogo can promote the power supply of lithium batteries for 45 minutes, while the Scorkl breathing mask provided by gas cylinders is crowdfunding at the same time in 20 17 years, providing only 10 minutes of use.
By using divers as the power source, ExoLung designer J_rgTragatschnig created "endless" breathing, or more precisely, an air supply device that only cuts off when a person stops swimming. When a diver stops swimming, it is probably because he or she has surfaced.
ExoLung hose with a length of 16.4 feet can prevent divers from diving to dangerous depths, which may lead to the risk of consuming too much energy and not being able to return to the ground with available air. Its design length is long enough for users to immerse themselves in underwater environment.
In contrast, ExoLung's hose is much shorter than the 39-foot hose on the tankless air cushion, but several feet shorter than the 20-foot hose of the mature SNUBA system provided by the air compressor.
The whole external lung system weighs 7.7 pounds and is packaged in 16 x 12 x 8 inches, which is lighter than replacing the specific gravity compressor equipment. AirBuddy is also called super lightweight, but its weight is three times that of ExoLung, which is 2 1 pound.
ExoLung does not require any certification, but Tragatschnig recommends that users be familiar with basic compressed air diving concepts at least through introductory diving courses. In addition to exploring the ocean and inland waters, the equipment can also be used for underwater fitness activities in swimming pools and other forms of diving practice equipment.
ExoLung, which is applying for a patent, is still in the prototype stage, but Tragatschnig estimates that the basic version will cost less than 300 euros, and the version equipped with a 23-foot "professional" model hose and reinforced structure may cost less than 500 euros. Different from the storage tank-based system, ExoLung does not involve extra cost, and it does not need cleaning after use, and it is basically maintenance-free. Tragatschnig is looking for a business partner to bring his ideas to the market, and will be exhibited at the international sporting goods exhibition ISPO in Munich, Germany next month.
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