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Multi-Frequency Pulsation Absorber at Cylinder Valve Cap

Abstract: 

A multi-chambered pulsation absorber for attachment over the valve cap opening of a compressor cylinder. Each chamber is in fluid communication with the valve cap opening (or cylinder internal gas passages) via an associated choke tube. Each pairing of a chamber with a choke tube is tuned, in the manner of a Helmholz resonator, to attenuate and nearly eliminate a different cylinder-related pulsation frequency, such as those resulting from internal cylinder pulsations or cylinder nozzle pulsations.

Patent Number: 
8,591,208
Date Of Issue: 
11/26/2013
Inventors: 

Eugene L. Broerman III; Danny M. Deffenbaugh; Robert J. McKee