Renault Modus 1.4 16v, strange box on the intake air intake?

[Christophe]

This may be what you were thinking of, but without a diagram or the right term, you were wrong!

Is it so bad for your ego?

[GuyGadebois]

This may be what you were thinking of, but without a diagram or the right term, you were wrong!

Is it so bad for your ego?

Not at all, I don't care. But then what is this box? What is it called at Renault?

[dede2002]

Hello,

I think it's just an intake silencer.

The resonance devices to increase the filling are located downstream of the butterfly.

[Christophe]

Ah yes, it's true: the butterfly is much further!

But suddenly how does it work ???

[dede2002]

By absorption, like an exhaust silencer. The pressure waves come in and out which makes the flow more fluid at the outlet (in the inlet in this case).

[Flytox]

Tap "Helmholtz attenuator" you have the answer ... and a little headache ....

https://books.google.fr/books?id=1efmEBsXtfwC&pg=PA94&lpg=PA94&dq=attenuateur+de+helmholtz&source=bl&ots=-aUH59jXkz&sig=ACfU3U3O1GgZpV6dxsc_5_mNA6FpCJ-b-A&hl=fr&sa=X&ved=2ahUKEwjRzdLrmOHnAhWKxYUKHWThDqgQ6AEwAHoECAoQAQ#v=onepage&q=attenuateur%20de%20helmholtz&f=false

helm.jpg (297.15 KB) Viewed 3141 times