Rotary Distributor for Pressure Multiplier

Abstract

The invention provides a system for multiplying pressure comprising at least two hydraulic cylinders communicating with an exit supplying pressure, wherein each cylinder has a piston within a chamber; said pistons cooperating respectively with an associated piston to supply pressure at the exit; and a rotary distributor communicating with said both hydraulic cylinders, able to supply alternatively a fluid to each chamber for motion of the respected pistons and to ensure alternatively return of the pistons.

1 . A system [( 10 )] for multiplying pressure comprising:
 at least two hydraulic cylinders communicating with an exit [( 4 )] supplying pressure, wherein each cylinder has a piston within a chamber, said pistons cooperating respectively with an associated piston to supply pressure at the exit [( 4 )]; and   a rotary distributor [( 5 )] communicating with said both hydraulic cylinders, able to supply fluid alternatively to each chamber to cause back and forth motion of said pistons.   
   
   
       2 . The system of  claim 1 , wherein [the] said rotary distributor comprises a mirror distributor plate [( 5 )] able to rotate within a holder [( 7 )], wherein the position of the plate [( 5 )] versus the holder [( 7 )] determines the fluid supply to each chamber. 
   
   
       3 . The system of  claim 2 , wherein [the] said mirror distributor plate [( 5 )] comprises at least two slots, the first slot [( 5 A)] ensuring fluid supply to each chamber and the second slot ( 5 B) ensuring fluid return from each chamber. 
   
   
       4 . The system according to  claim 1 , further comprising:
 a first rod [( 10 A)] coupling the first piston [( 1 A)] with the third associated piston [( 1 B)];   a second rod [( 10 A)] coupling the second piston [( 2 A)] with the fourth associated piston [( 2 B)]; and   a first free wheel [( 6 A)] connected to the first rod and a second free wheel [( 6 B)] connected to the second rod, both free wheels coupled with the rotary distributor [( 5 )] such that motion of each piston ensures self rotation of the rotary distributor in one direction, ensuring alternative fluid supply [of] to each chamber.   
   
   
       5 . The system according to  claim 1 , wherein the rotary distributor is rotated by a step motor. 
   
   
       6 . The system according to  claim 1 , further comprising at least a first sensor for determining the position of the first or second piston in the associated chamber. 
   
   
       7 . The system of  claim 6 , wherein the first sensor determines the position of the first piston [( 1 A)] in the first chamber, and further comprising a second sensor for determining the position of the second piston [( 2 A)] in the second chamber. 
   
   
       8 . A method for pumping an injection fluid in a well using an apparatus according to  claim 1 . 
   
   
       9 . The method of  claim 8 , wherein the injection fluid is cement slurry. 
   
   
       10 . The system according to  claim 2 , further comprising:
 a first rod coupling the first piston with the third associated piston;   a second rod coupling the second piston with the fourth associated piston; and   a first free wheel connected to the first rod and a second free wheel connected to the second rod, both free wheels coupled with the rotary distributor such that motion of each piston ensures self rotation of the rotary distributor in one direction, ensuring alternative fluid supply to each chamber.   
   
   
       11 . The system according to  claim 2 , wherein said rotary distributor is rotated by a step motor. 
   
   
       12 . The system according to  claim 2 , further comprising at least a first sensor for determining the position of the first or second piston in the associated chamber. 
   
   
       13 . The system of  claim 12 , wherein the first sensor determines the position of the first piston in the first chamber, and further comprising a second sensor for determining the position of the second piston in the second chamber. 
   
   
       14 . A method for pumping an injection fluid in a well, using an apparatus according to  claim 2 . 
   
   
       15 . The method of  claim 14 , wherein the injection fluid is cement slurry. 
   
   
       16 . The system according to  claim 3 , further comprising:
 a first rod coupling the first piston with the third associated piston;   a second rod coupling the second piston with the fourth associated piston; and   a first free wheel connected to the first rod and a second free wheel connected to the second rod, both free wheels coupled with the rotary distributor such that motion of each piston ensures self rotation of the rotary distributor in one direction, ensuring alternative fluid supply to each chamber.   
   
   
       17 . The system according to  claim 3 , wherein said rotary distributor is rotated by a step motor. 
   
   
       18 . The system according to  claim 3 , further comprising at least a first sensor for determining the position of the first or second piston in the associated chamber. 
   
   
       19 . The system of  claim 18 , wherein the first sensor determines the position of the first piston in the first chamber, and further comprising a second sensor for determining the position of the second piston in the second chamber. 
   
   
       20 . A method for pumping an injection fluid in a well, using an apparatus according to  claim 3 . 
   
   
       21 . The method of  claim 20 , wherein the injection fluid is cement slurry. 
   
   
       22 . The system according to  claim 4 , further comprising at least a first sensor for determining the position of the first or second piston in the associated chamber. 
   
   
       23 . The system of  claim 22 , wherein the first sensor determines the position of the first piston in the first chamber, and further comprising a second sensor for determining the position of the second piston in the second chamber. 
   
   
       24 . A method for pumping an injection fluid in a well, using an apparatus according to  claim 4 . 
   
   
       25 . The method of  claim 24 , wherein the injection fluid is cement slurry. 
   
   
       26 . The system according to  claim 5 , further comprising at least a first sensor for determining the position of the first or second piston in the associated chamber. 
   
   
       27 . The system of  claim 26 , wherein the first sensor determines the position of the first piston in the first chamber, and further comprising a second sensor for determining the position of the second piston in the second chamber. 
   
   
       28 . A method for pumping an injection fluid in a well, using an apparatus according to  claim 5 . 
   
   
       29 . The method of  claim 28 , wherein the injection fluid is cement slurry. 
   
   
       30 . A method for pumping an injection fluid in a well, using an apparatus according to  claim 7 . 
   
   
       31 . The method of  claim 30 , wherein the injection fluid is cement slurry.