Fluid circulator with rigid diaphragm

Abstract

The subject of the present invention is a fluid circulator comprising an excitable rigid diaphragm ( 1 ) which comprises at least one orifice ( 2 ), and preferably a fluid collector ( 6 ), which may or may not be secured to an upper ( 4 ) or lower ( 5 ) plate. Another subject of the invention is a diaphragm suited to the operation of this fluid circulator, a pump including this fluid circulator, a propulsion device, a nautical craft and any other use of the fluid circulator as a pump or as a mixer.

1 . Fluid circulator comprising at least one excitable rigid diaphragm ( 1 ) which comprises at least one orifice ( 2 ).  
   
   
       2 . Fluid circulator according to  claim 1 , wherein that the said diaphragm ( 1 ) comprises a central orifice ( 2 ).  
   
   
       3 . Fluid circulator according to  claim 1 , wherein that the said diaphragm ( 1 ) comprises at least one non-centred orifice ( 2 ).  
   
   
       4 . Fluid circulator according to  claim 1 , wherein the said diaphragm ( 1 ) is manufactured or covered with one or more materials that can be implanted in the body of an animal, preferably titanium.  
   
   
       5 . Fluid circulator according to  claim 1 , wherein the said diaphragm ( 1 ) is manufactured or covered with one or more materials suitable for processing corrosive fluids, preferably stainless steel.  
   
   
       6 . Fluid circulator according to  claim 1  wherein it comprises several diaphragms ( 1 ), possibly connected to one another by spacers.  
   
   
       7 . Fluid circulator according to  claim 1 , furthermore comprising at least one plate ( 4 ,  5 ) situated near the diaphragm and remaining out of contact with the diaphragm ( 1 ), even when it is excited.  
   
   
       8 . Fluid circulator according to  claim 1 , comprising two plates ( 4 ,  5 ) situated one on each side of the perforated rigid diaphragm, it being possible for the said two plates ( 4 ,  5 ) either to be secured or not to be secured to one another.  
   
   
       9 . Fluid circulator according to  claim 1 , further comprising at least one hydraulic circuit for letting fluids in and/or out.  
   
   
       10 . Fluid circulator according to  claim 1 , further comprising at least one fluid collector ( 6 ), situated near the orifice or orifices ( 2 ) in the diaphragm ( 1 ).  
   
   
       11 . Fluid circulator according to  claim 1 , wherein the said fluid is incompressible.  
   
   
       12 . Fluid circulator according to  claim 1 , further comprising an actuator ( 7 ), driven by a source of energy, preferably an electric motor or an electromagnetic motor, which sets the diaphragm ( 1 ) in motion.  
   
   
       13 . Fluid circulator according to  claim 1 , wherein the said fluid circulator is submersible.  
   
   
       14 . Fluid circulator according to  claim 1 , wherein the dimensions of the orifice ( 2 ) are less than or equal to the dimensions of the collector ( 6 ).  
   
   
       15 . Fluid circulator according to  claim 1 , wherein the orifice ( 2 ) is equipped with a projection, on the upper face and/or on the lower face of the diaphragm, bordering the said orifice over all or part of its periphery.  
   
   
       16 . Diaphragm suited to the operation of a fluid circulator according to  claim 1 .  
   
   
       17 . Pump comprising a hydraulic circuit equipped with at least one fluid inlet orifice, with at least one fluid circulator according to  claim 1 , the said fluid circulator being placed in a pump housing delimiting the space in which the fluid flow rate is created or increased, and a fluid outlet device, equipped with at least one collector ( 6 ) of the said fluid.  
   
   
       18 . Pump according to  claim 17 , characterized in that a space is formed between the exterior periphery of the diaphragm ( 1 ) and the pump housing ( 3 ).  
   
   
       19 . Pump according to  claim 17 , characterized in that it comprises no valve.  
   
   
       20 . Medical device, characterized in that it comprises a fluid circulator according to any one of  claims 1  to  15 .  
   
   
       21 . Fluid propulsion device, characterized in that it comprises a fluid circulator according to any one of  claims 1  to  15 .  
   
   
       22 . Nautical or aquatic craft, characterized in that it includes a propulsion device according to  claim 21 .  
   
   
       23 . Use of a fluid circulator according to any one of  claims 1  to  15  for circulating biological, corrosive, viscous and/or laden fluids.  
   
   
       24 . Use of a fluid circulator according to any one of  claims 1  to  15  as a pump or as a mixer.