Constructive arrangement for a resonant compressor

Abstract

A constructive arrangement for a resonant compressor comprising a shell ( 1 ), within which are mounted: a non-resonant assembly formed by a motor and a cylinder ( 2 ), said motor having a coil ( 6 ) generating a magnetic flow that travels through the shell ( 1 ); a resonant assembly formed by a piston ( 10 ) reciprocating inside the cylinder ( 2 ) and by an actuating means ( 3 ) operatively coupling the piston ( 10 ) to the motor, said arrangement comprising a magnetic insulating means, which is affixed to one of the parts defined by the shell ( 1 ), by the resonant assembly, and by the non-resonant assembly, and which is arranged so as to interrupt the magnetic flow path between the shell ( 1 ) and at least one of the parts defined by the piston ( 10 ) and the cylinder ( 2 ) in a direction substantially parallel to the displacement direction of the piston ( 10 ).

1 . A constructive arrangement for a resonant compressor comprising a shell ( 1 ), within which are mounted: a non-resonant assembly formed by a motor and a cylinder ( 2 ), said motor having a coil ( 6 ) generating a magnetic flow which travels through the shell ( 1 ); a resonant assembly formed by a piston ( 10 ) reciprocating inside the cylinder ( 2 ) and by an actuating means ( 3 ) operatively coupling the piston ( 10 ) to the motor, characterized in that it comprises a magnetic insulating means, which is affixed to one of the parts defined by the shell ( 1 ), by the resonant assembly, and by the non-resonant assembly, and which is arranged to interrupt the magnetic flow path between the shell ( 1 ) and at least one of the parts defined by the piston ( 10 ) and by the cylinder ( 2 ) in a direction substantially parallel to the displacement direction of the piston ( 10 ).  
   
   
       2 . The arrangement according to  claim 1 , characterized in that the magnetic insulating means interrupts the magnetic flow path between the non-resonant assembly and at least one of said parts defined by the piston ( 10 ) and the cylinder ( 2 ).  
   
   
       3 . The arrangement according to  claim 2 , in which the resonant assembly carries at least one spring means ( 8 ) mounted to the actuating means ( 3 ) and to the non-resonant assembly and which is resiliently and axially deformable in the displacement direction of the piston ( 10 ), characterized in that the magnetic insulating means interrupts the magnetic flow path between said spring means ( 8 ) and at least one of said parts defined by the piston ( 10 ) and the cylinder ( 2 ).  
   
   
       4 . The arrangement according to  claim 2 , characterized in that the magnetic insulating means interrupts the magnetic flow path at least between the actuating means ( 3 ) and the piston ( 10 ).  
   
   
       5 . The arrangement according to  claim 4 , characterized in that the magnetic insulating means is defined by at least part of the piston ( 10 ).  
   
   
       6 . The arrangement according to  claim 5 , characterized in that the magnetic insulating means is defined by at least part of the cylinder ( 2 ).  
   
   
       7 . The arrangement according to  claim 4 , characterized in that the magnetic insulating means comprises at least one element made of a non-magnetic material disposed between the piston ( 10 ) and the actuating means ( 3 ).  
   
   
       8 . The arrangement according to  claim 7 , characterized in that each element in a non-magnetic material is defined by a coupling portion ( 12 ) of the piston ( 10 ) connecting the actuating means ( 3 ) to a top portion ( 11 ) of the piston ( 10 ).  
   
   
       9 . The arrangement according to  claim 4 , characterized in that each element in a non-magnetic material is a pastille ( 40 ) defined adjacent to the actuating means ( 3 ) and attachable to a respective part defined by the piston ( 10 ) and by the cylinder ( 2 ).  
   
   
       10 . The arrangement according to  claim 1 , characterized in that the magnetic insulating means is a lining provided in the part to which it is affixed.  
   
   
       11 . The arrangement according to  claim 5 , characterized in that the piston ( 10 ) is massive.  
   
   
       12 . The arrangement according to  claim 8 , characterized in that the coupling portion ( 12 ) has an end mounted to the inside of the top portion ( 11 ) of the piston ( 10 ).  
   
   
       13 . The arrangement according to  claim 12 , characterized in that the top portion ( 11 ) is tubular and the coupling portion ( 12 ) is an insert mounted to the inside of the top portion ( 11 ).  
   
   
       14 . The arrangement according to  claim 13 , characterized in that the insert is mounted to the top portion ( 11 ) by any one of the processes, such as interference, welding, or gluing.  
   
   
       15 . The arrangement according to  claim 7 , characterized in that the element in a non-magnetic material presents a thickness of at least about 10 mm.