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. 29, 2019
Filed:
Dec. 04, 2014
Applicant:
Lennox Industries Inc., Richardson, TX (US);
Inventor:
Harold Gene Havard, Jr., Carrollton, TX (US);
Assignee:
Lennox Industries Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 27/00 (2006.01); F04D 17/10 (2006.01);
U.S. Cl.
CPC ...
F04D 27/004 (2013.01); F04D 17/10 (2013.01); Y10T 29/49002 (2015.01);
Abstract
A blower unit controller and an HVAC system are disclosed herein. In one embodiment, the blower unit controller includes: (1) an input configured to receive motor operating parameters, (2) an output configured to provide a motor speed control signal to an inverter, (3) a memory configured to store a mathematical model of airflow produced by a blower motor, the mathematical model being configured to relate a motor speed to the motor operating parameters and (4) a processor configured to produce the speed control signal based on the mathematical model.