The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2013
Filed:
Jun. 24, 2009
Eugene L. Broerman, Iii, San Antonio, TX (US);
Danny M. Deffenbaugh, San Antonio, TX (US);
Robert J. Mckee, Everett, WA (US);
Eugene L. Broerman, III, San Antonio, TX (US);
Danny M. Deffenbaugh, San Antonio, TX (US);
Robert J. McKee, Everett, WA (US);
Southwest Research Institute, San Antonio, TX (US);
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.