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Bicycles

Bicycle inner tube pumps itself up as you ride

It was three years ago that we first heard about inventor Benjamin Krempel's PumpTire – it was a prototype bicycle tire that used wheel motion to keep itself inflated. While it was an interesting idea, it would require users to give up their existing tires, plus the peristaltic pumping mechanism would be compromised once the tread wore away. Well, he has now come up what sounds like a better alternative: the PumpTube.Read More

Bicycles

Kickstand Pump does quadruple duty

When most of us think of a cycling multi-tool, we picture something that goes in a jersey pocket or saddle pack. Seoul-based company Leeman, however, is looking at things a little differently. Its Kickstand Pump mounts on the bike, and serves not only as a kickstand and pump, but also a tire lever and tail light.Read More

Science

Bird-inspired pump uses teeth to move water

In most pumps, either a spinning impeller pulls liquid in and then essentially "throws" it out via centrifugal force, or a rotor draws it through using peristaltic force. After studying how birds' flapping wings use fluid dynamics to push air back while moving the animals forward, however, two scientists from New York University have developed a pump that works in yet another fashion – and it has teeth. Read More

Bontrager TLR Flash Charger pump delivers a blast of air to wily tubeless tires

Tubeless tires are pretty much standard on higher-end mountain bikes now, due to their lower weight and rolling resistance, along with their ability to contain sealant. However, they do have one drawback – you need to use a CO2 cartridge or an air compressor to put the things on. Bontrager has set out to change that, with its TLR Flash Charger pump. Read More

Good Thinking

Barsha pump provides irrigation water, but doesn't need fuel

Climate-KIC, a European-union climate innovation initiative, recently selected a jury of entrepreneurs, financiers and business people to award funding to what they felt were Europe’s best clean-tech innovations of 2014. Taking first place was Dutch startup aQysta, a Delft University of Technology spin-off company that manufactures what's known as the Barsha irrigation pump. It can reportedly boost crop yields in developing nations by up to five times, yet requires no fuel or electricity to operate. Read More

Medical

Study indicates that C-Pulse system helps hearts heal

When you hurt a muscle, it's usually advisable to lay off extensive use of it, until it's had a chance to heal. Well, your heart is a muscle. Although you can't just stop using it altogether when it's damaged, you can make its job easier. That's what Sunshine Heart's C-Pulse system was designed to do, and a current study suggests that it does indeed help victims of heart failure recover more quickly. Read More

Bicycles

New bike pump hides in the crank axle

If you own a higher-end road or mountain bike with a Shimano drivetrain, then chances are it's got a "secret" storage compartment: the hollow space in the axle, that connects the Shimano Hollowtech cranks. While you're not going to be able to fit your phone or wallet in there, you can pop in the new CrankPump CO2 tire pump. Read More

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