Compressor

Abstract

A compressor, and more particularly, an axial double piston compressor.

What is claimed is: 
     
         1 . A compressing unit comprising:
 a cylinder;   a first piston configured to slide along said cylinder; and   a connecting rod attached to said first piston at a first end and to a crank at a second end, said crank configured to be directly attached to a motor shaft; and   wherein a length L of said connecting rod is substantially greater than an operating radius R of said crank.   
     
     
         2 . A compressing unit wherein said length L of said connecting rod is at least five times greater than said operating radius R of said crank. 
     
     
         3 . A compressing unit wherein said length L of said connecting rod is at least ten times greater than said operating radius R of said crank. 
     
     
         4 . A compressing unit according to  claim 1  wherein said first end of said connecting rod comprises an integral flexible pivot. 
     
     
         5 . A compressing unit according to  claim 4  wherein said integral flexible pivot is integral with said first piston. 
     
     
         6 . A compressing unit according to  claim 1  wherein said first piston comprises a sliding surface integral with said piston. 
     
     
         7 . A compressing unit according to  claim 1  further comprising a second piston configured to slide along said cylinder. 
     
     
         8 . A compressing unit according to  claim 7  further comprising a piston rod connecting said first piston to said second piston. 
     
     
         9 . A compressing unit according to  claim 8  wherein said length L of said connecting rod is greater than half the length of said piston rod. 
     
     
         10 . A compressing unit according to  claim 1  wherein said motor shaft comprises an electric motor shaft. 
     
     
         11 . A method of producing a compressing unit, the method comprising:
 integrally producing a first piston with a connecting rod and a flexible pivot therebetween,   wherein said connecting rod is integral with said first piston at a first end and connects to a crank at a second end, said crank configured to be directly attached to a motor shaft; and   wherein a length L of said connecting rod is substantially greater than an operating radius R of said crank.   
     
     
         12 . A method according to  claim 11  further comprising using injection molding to integrally produce said first piston with said flexible pivot and said connecting rod. 
     
     
         13 . A method according to  claim 11  further comprising integrally molding a piston rod with said first piston. 
     
     
         14 . A method according to  claim 13  further comprising integrally molding a second piston with said piston rod. 
     
     
         15 . A method of using a compressing unit, the method comprising:
 rotating a crank connected directly to a motor shaft at a substantially high speed;   translating rotational motion from said crank to linear motion using a connecting rod attached to a first piston at a first end and to said crank at a second end; and   sliding said first piston forward and backward inside a cylinder;   wherein a length L of said connecting rod is substantially greater than an operating radius R of said crank.