Device for controlling air flow in ventilation pipes

Abstract

Abstract THIS INVENTION RELATES TO A DEVICE WHICH, WITHOUT MAKING USE OF ANY SOURCE OF ENERGY OTHER THAN THE MOTIVE PRESSURE OF AIR CIRCULATING IN A PIPE, ENABLES THE FLOW OF AIR IN THIS SAID PIPE TO BE STABILISED TO A CONSTANT VALUE, THE SAID DEVICE, BY VIRTUE OF ITS DESIGNS, BEING ABLE WITHOUT ANY SUPPLEMENTARY MEANS TO SMOOTH OUT THE EFFECT OF VIOLENT FLUCTUATIONS OF PRESSURE, AT THE SAME TIME RETAINING GOOD RESPONSE SENSITIVITY TO PROGRESSIVE CHANGES OF PRESSURE OF LOW AMPLITUDE, SAID DEVICE HAVING AT LEAST ONE CHAMBER OF WHICH PART OF, OR THE WHOLE OF THE WALLS CAN UNDERGO ELASTIC DEFORMATION, A SEATING ASSOCIATED WITH THIS CHAMBER IN SUCH A WAY AS TO PROVIDE AN AIR PASSAGE BETWEEN THIS SEATING AND THE OUTSIDE WALLS OF THE CHAMBER, MEANS WHICH, WHEN SUCH A DEVICE IS FITTED IN A PIPE IN WHICH IS MAINTAINED A MOTIVE PRESSURE CAPABLE OF ASSURING AIR CIRCULATION, ENABLE A PRESSURE EQUAL TO THAT UPSTREAM OF THE DEVICE TO BE PRESENT INSIDE THE CHAMBER. D R A W I N G

Inventors

• 👤 P Jardinier
• 👤 J Simonnot

Bibliographic Details