Mech for Tyre Deflation Test Required Under FMVSS 120

What you need is a "tire dynamometer". It allows you to inflate and load tires to whatever pressure and speed you like on a wheel under load.

You can take a passenger tire and run it at 3 times pressure with 4 times load at 300 KPH.

It usually explodes in a minute or two. The equipment is made to contain this. We had one at Dunlop in Toronto. Big bangs were made,

All tire makers have them

http://www.google.com/search?hl=en&q=%22tire+dynamometer%22.+&btnG=Google+Search

i have to conduct the test on a running vehicle at 97km/h speed. i cant test it on dyno,. the purpose is to see that the vehicle is safe (tire is retained by the rim till vehicle is made to safely halt) at high speeds, i need some equipment that can be mounted on the vehicle. and puncture activated by co driver.

I think you could use a hydraulic cylinder with a puncturing tool and supply it (it is an one shot use at each test) with aloaded accumulator. The valve could be controled by a wifi signal and the whole system can be mounted on the wheel. It has to be balaced in order to avoit a too great centrifugal force. The valve should be an electrovalve and the curent for it can be supplied by a batterie.

I have not seen such systems yet so this is only a quite rough suggestion.

A range of standard wheel and tyre testing equipment is made by Instron in Germany.

They will also make specials. Alternatively, specialist custom machine builders would build one, but it would not be cheap. Look for a company with a good track record!

According to THE "MYTH BUSTERS" TV Show, Someone with a rifle could do the job very inexpensively.

Why would anybody need to conduct this test unless they were a tire manufacturer or a government agency and in that case they would have the money and/or equipment to do the testing.

dear friend,

the test is reqd to satisfy ourselves before submission to govt agency.

i need help in locating a supplier for this test equipment.

i contacted instron they may not be having , can u give some alternate source.

Set up a light beam then conect up an air powered gun so the projectile hits the tyre as required contact a film crew stunt department.

Friend,

This is not my area of competence, but I suspect that the people at Consumer's Union in the USA may have some experience or suggestions for the type of equipment you need. I suspect that a small firearm, or maybe a pneumatic nail gun with a remote trigger release, aimed at the tire's sidewall and mounted on the undercarriage of the vehicle would be sufficient. I believe most blowouts are sidewalls. Again, CU may have had experience with this.

John M.

Way to go. Co-driver leans out of window and puts a bullet through the tire. Cheap and effective although it does depend exactly where you are doing this test!

Did you ever find a tyre deflation kit manufacturer?

I am looking for the same thing, if so I do you have any contact details?