How can we pump air into a bicycle tire without opening the valve?

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Homework Help Overview

The discussion revolves around the mechanics of inflating a bicycle tire without opening the valve, specifically focusing on the Dunlop valve type. Participants explore how air can enter the tire despite the valve being closed.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Some participants discuss the mechanics of pressure and how it allows air to enter the tire, while others question the feasibility of alternative methods to inflate the tire without opening the valve.

Discussion Status

The discussion is ongoing, with participants sharing insights about the operation of different valve types and considering various methods for inflating tires without direct access to the valve. There is no explicit consensus yet, but some guidance is emerging regarding the mechanics involved.

Contextual Notes

Participants are considering the implications of different valve designs and the constraints of the original poster's question about not opening the valve.

Benjamin_harsh
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Homework Statement
How can we pump air into bicycle tire without opening the valve?
Relevant Equations
How can we pump air into bicycle tire without opening the valve?
How can we pump air into bicycle tire without opening the valve? I mean If valve (dunlop bicycle valve)is closed, then how pumped air going into the tire?
 
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As soon as the pressure from the pump is higher than the pressure in the tyre, the air coming out of the small hole pushes the rubber hose outwards and finds its way through

245077

I think the ones without a rubber hose have a little plastic ball that blocks the air from getting out but not from getting in.
 
  • Informative
Likes   Reactions: Benjamin_harsh
Do any of these responses answer the core question?

It seems to be the OP is asking for an alternate way to fill up a tire without opening the valve - regardless of what type of valve it is.

I can think of at least one way of getting air into a tire that doesn't open the valve. Most coastal cities will be able to accommodate.

[ EDIT ]

I mean If valve (dunlop bicycle valve)is closed, then how pumped air going into the tire?

Okay, maybe you guys are on the right track.
 
DaveC426913 said:
Okay, maybe you guys are on the right track
Another direct answer could be 'Pump !' 😄
 

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