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:
Jun. 23, 2020
Filed:
Mar. 05, 2017
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventors:
John C. Hedrick, Boerne, TX (US);
Steven G. Fritz, La Vernia, TX (US);
Randy R. McDonnell, San Antonio, TX (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 39/04 (2006.01); F02B 33/38 (2006.01); F02B 33/40 (2006.01); F02D 41/00 (2006.01); F02D 41/14 (2006.01); F04C 18/12 (2006.01); F04C 29/00 (2006.01); F02D 43/00 (2006.01); F04C 28/08 (2006.01); F02B 75/02 (2006.01); F02B 75/18 (2006.01);
U.S. Cl.
CPC ...
F02B 39/04 (2013.01); F02B 33/38 (2013.01); F02B 33/40 (2013.01); F02D 41/0007 (2013.01); F02D 41/1454 (2013.01); F02D 43/00 (2013.01); F04C 18/126 (2013.01); F04C 28/08 (2013.01); F04C 29/005 (2013.01); F02B 2075/025 (2013.01); F02B 2075/1832 (2013.01); F02B 2075/1848 (2013.01); F02B 2075/1864 (2013.01); F02B 2075/1868 (2013.01); F02D 2200/703 (2013.01); F02D 2400/04 (2013.01);
Abstract
An air boost system for a two-cycle engine, such as an EMD engine, which operates with one or more roots blowers, or for similar engines that use gear-driven roots blowers or centrifugal blowers. At least one of the roots blowers is equipped with a variable transmission, which allows airflow into the engine to be varied in accordance with load or other engine operating conditions.