Fluid pressure sensing chamber

With a tube is extended a forced induction chamber, the pipe extending part is extended is penetrated through the cavity reducing part. The pipe comprises multiple manholes, thus body from arranged in the cavity is evacuate the air, and primary size is able to admitting pipe bubble to containing to the air with the cavity. The labour-saving part of the holes with a differential pressure. The differential pressure a turbulence flow liquid flow invention production of the upper liquid flow and is connected with the cavity flow.