Compressor discharge pulsation dampener

Abstract

A pulsation dampener comprising a first resonator tube having a first tube inlet in communication with a compressor outlet. The first resonator tube has an outlet located within a first resonator chamber. The first resonator tube has a length l 1 that is equal to λ 1 /4 wherein λ 1 is the acoustic component wavelength passing through the first resonator tube and the first chamber has a length l 2 that is within 20% of the length l 1 .

1 . A pulsation dampener comprising: 
 a first resonator tube having a first tube inlet in communication with a compressor outlet and a first tube outlet located within a first resonator chamber, wherein the first resonator tube has a length l 1  that is equal to λ 1 /4 wherein λ 1  is the acoustic component wavelength passing through the first resonator tube and the first chamber has a length l 2  that is within 20% of the length l 1 .    
   
   
       2 . The pulsation dampener of  claim 1  wherein the first resonator chamber has a center and the first tube outlet is spaced from the first resonator chamber center.  
   
   
       3 . The pulsation dampener of  claim 1  wherein the first resonator tube and the first resonator chamber are configured such that the frequency attenuated by the first resonator tube matches a quarter wavelength mode of the first resonator chamber.  
   
   
       4 . The pulsation dampener of  claim 1  further comprising a second resonator chamber adjacent to the first resonator chamber and a second resonator tube having a second tube inlet located in the first resonator chamber and a second tube outlet located within the second resonator chamber, wherein the second resonator tube has a length l 3  that is equal to λ 2 /4 wherein λ 2  is the acoustic component wavelength passing through the second tube and the second chamber has a length l 4  that is within 20% of the length l 3 .  
   
   
       5 . The pulsation dampener of  claim 4  wherein the first and second resonator chambers each have a center and the first tube outlet and the second tube inlet are spaced from the first resonator chamber center and the second tube outlet is spaced from the second resonator chamber center.  
   
   
       6 . The pulsation dampener of  claim 4  wherein the first resonator tube and the first resonator chamber are configured such that the frequency attenuated by the first resonator tube matches a quarter wavelength mode of the first resonator chamber and the second resonator tube and the second resonator chamber are configured such that the frequency attenuated by the second resonator tube matches a quarter wavelength mode of the second resonator chamber.  
   
   
       7 . A truck mounted pulsation assembly comprising: 
 a body configured for mounting on a truck, the body defining a fluid inlet configured to receive compressed fluid from a compressor, at least a first resonator chamber, and a fluid exit; and    a first resonator tube supported by the body, the first resonator tube having a first tube inlet in the communication with the fluid inlet and a first tube outlet positioned in the first resonator chamber;    wherein the first resonator tube has a length l 1  that is equal to λ 1 /4 wherein λ 1  is the acoustic component wavelength passing through the first resonator tube and the first chamber has a length l 2  that is within 20% of the length l 1 .    
   
   
       8 . The pulsation assembly of  claim 7  wherein the first resonator chamber has a center and the first tube outlet is spaced from the first resonator chamber center.  
   
   
       9 . The pulsation assembly of  claim 7  wherein the first resonator tube and the first resonator chamber are configured such that the frequency attenuated by the first resonator tube matches a quarter wavelength mode of the first resonator chamber.  
   
   
       10 . The pulsation assembly of  claim 7  further comprising a second resonator chamber defined by the body adjacent to the first resonator chamber and a second resonator tube having a second tube inlet located in the first resonator chamber and a second tube outlet located within the second resonator chamber, wherein the second resonator tube has a length l 3  that is equal to λ 2 /4 wherein λ 2  is the acoustic component wavelength passing through the second tube and the second chamber has a length l 4  that is within 20% of the length l 3 .  
   
   
       11 . The pulsation assembly of  claim 10  wherein the first and second resonator chambers each have a center and the first tube outlet and the second tube inlet are spaced from the first resonator chamber center and the second tube outlet is spaced from the second resonator chamber center.  
   
   
       12 . The pulsation assembly of  claim 10  wherein the first resonator tube and the first resonator chamber are configured such that the frequency attenuated by the first resonator tube matches a quarter wavelength mode of the first resonator chamber and the second resonator tube and the second resonator chamber are configured such that the frequency attenuated by the second resonator tube matches a quarter wavelength mode of the second resonator chamber.  
   
   
       13 . The pulsation assembly of  claim 10  further comprising a third resonator chamber defined by the body and a third resonator tube having a third tube inlet located in communication with the fluid inlet and a third tube outlet located within the third resonator chamber, wherein the third resonator tube has a length l 5  that is equal to λ 3 /4 wherein λ 3  is the acoustic component wavelength passing through the second tube and the second chamber has a length l 6  that is within 20% of the length l 5 .  
   
   
       14 . The pulsation assembly of  claim 13  wherein the third resonator chamber has a center and the third tube outlet is spaced from the third resonator chamber center.  
   
   
       15 . The pulsation assembly of  claim 13  wherein the third resonator tube and the third resonator chamber are configured such that the frequency attenuated by the third resonator tube matches a quarter wavelength mode of the third resonator chamber.  
   
   
       16 . The pulsation assembly of  claim 13  further comprising a fourth resonator chamber defined by the body adjacent to the third resonator chamber and a fourth resonator tube having a fourth tube inlet located in the third resonator chamber and a fourth tube outlet located within the fourth resonator chamber, wherein the fourth resonator tube has a length l 7  that is equal to λ 4 /4 wherein λ 4  is the acoustic component wavelength passing through the fourth tube and the fourth chamber has a length l 8  that is within 20% of the length l 5 .  
   
   
       17 . The pulsation assembly of  claim 16  wherein the third and fourth resonator chambers each have a center and the third tube outlet and the fourth tube inlet are spaced from the third resonator chamber center and the fourth tube outlet is spaced from the fourth resonator chamber center.  
   
   
       18 . The pulsation assembly of  claim 16  wherein the third resonator tube and the third resonator chamber are configured such that the frequency attenuated by the third resonator tube matches a quarter wavelength mode of the third resonator chamber and the fourth resonator tube and the fourth resonator chamber are configured such that the frequency attenuated by the fourth resonator tube matches a quarter wavelength mode of the fourth resonator chamber.  
   
   
       19 . The pulsation assembly of  claim 16  wherein the second resonator chamber and the fourth resonator chamber each have an exit in fluid communication with the fluid exit.