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:
Jan. 11, 2011
Filed:
Sep. 29, 2006
Applicants:
Ralph E. Harris, San Antonio, TX (US);
Eugene L. Broerman, Iii, San Antonio, TX (US);
Gary D. Bourn, Laramie, WY (US);
Inventors:
Ralph E. Harris, San Antonio, TX (US);
Eugene L. Broerman, III, San Antonio, TX (US);
Gary D. Bourn, Laramie, WY (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 27/04 (2006.01); F02B 27/02 (2006.01); F01M 15/00 (2006.01); F01N 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of improving scavenging operation of a two-stroke internal combustion engine. The exhaust pressure of the engine is analyzed to determine if there is a pulsation frequency. Acoustic modeling is used to design an absorber. An appropriately designed side branch absorber may be attached to the exhaust manifold.