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:
Feb. 02, 2018
Applicant:
Siemens Industry, Inc., Alpharetta, GA (US);
Inventors:
James J. Coogan, Des Plaines, IL (US);
Scott Johnson, Plymouth, MN (US);
Paul Fuson, Prospect Heights, IL (US);
Assignee:
Siemens Industry, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F 11/00 (2018.01); F04D 27/00 (2006.01); F24F 11/63 (2018.01); F24F 11/77 (2018.01); F24F 11/74 (2018.01); F24F 7/06 (2006.01); G01F 1/44 (2006.01); G05D 7/06 (2006.01); F24F 110/40 (2018.01);
U.S. Cl.
CPC ...
F24F 11/0001 (2013.01); F04D 27/001 (2013.01); F04D 27/003 (2013.01); F04D 27/004 (2013.01); F24F 7/06 (2013.01); F24F 11/63 (2018.01); F24F 11/74 (2018.01); F24F 11/77 (2018.01); G01F 1/44 (2013.01); G05D 7/0676 (2013.01); F24F 2110/40 (2018.01);
Abstract
For air distribution or extraction, fan speed is controlled using modeling to account for venturi air valves. A minimum pressure for each venturi air valve is incorporated into the model. The pressure losses for various duct airpaths to terminal units is calculated based, in part, on the minimum pressure of any venturi valve. The fan set point or operation is established based on the highest needed pressure in the various airpaths connected with the fan.