Bicycle pump.txt - Bicycle pump From Wikipedia, the free...

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Bicycle pumpFrom Wikipedia, the free encyclopediaJump to navigationJump to searchThis article needs additional citations for verification. Please help improve thisarticle by adding citations to reliable sources. Unsourced material may bechallenged and removed.Find sources: "Bicycle pump" – news · newspapers · books · scholar · JSTOR (January2008) (Learn how and when to remove this template message)Bicycle floor pumpFoot-operated bike pumpFrame-mounted bike pumpOutdoor public air compressor for bicycles.A bicycle pump is a type of positive-displacement air pump specifically designedfor inflating bicycle tires. It has a connection or adapter for use with one orboth of the two most common types of valves used on bicycles, Schrader or Presta. Athird type of valve called the Dunlop (or Woods) valve exists, but tubes with thesevalves can be filled using a Presta pump.[1]Several basic types are available:Floor pumpsFrame-mountedCompact or miniFoot-operatedDouble-actionBlast or tubelessIn its most basic form, a bicycle pump functions via a hand-operated piston. Duringup-stroke, this piston draws air through a one-way valve into the pump fromoutside. During down-stroke, the piston then displaces air from the pump into thebicycle tire. Most floor pumps, also commonly called track pumps, have a built-inpressure gauge to indicate tire pressure.Electrically-operated pumps intended to inflate car tires (as available in mostservice stations) can in principle be used to inflate a bicycle tire if the righttype of connection is available. Some such pumps are designed to cut off before asuitable pressure (much higher for a bicycle than a car tire), and will much underinflate the tire. Others may not cut off, but deliver a high rate of flow to fillthe larger car tire, with a risk of over inflating and bursting a bicycle tireunless it is stopped with split-second timing.Inflating tubeless tires requires an initial surge of air to seat the bead, andspecialized pumps are available specifically for this task.[2]Contents1History2How they work3Types3.1Stand pump3.2Hand pump3.2.1Mini pump3.3Foot pump3.4CO2 inflators3.5Electric pump
4Tire pressure4.1Pressure output5See also6References7External linksHistory

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Term
Summer
Professor
N/A
Tags
Pump, Valve, Bicycle pump, PRESTA

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