Gas separation: processes – With control responsive to sensed condition – Pressure sensed
Reexamination Certificate
2000-09-05
2002-07-23
Smith, Duane S. (Department: 1724)
Gas separation: processes
With control responsive to sensed condition
Pressure sensed
C095S022000, C095S023000, C096S397000, C096S417000
Reexamination Certificate
active
06423118
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates generally to air flow in air filtration systems and more specifically to methods and systems for improving performance of air filtration systems.
Air filtration systems are driven by relatively constant speed motors, for example, induction motors configured as blowers or fans. There are disadvantages to such a system. In one example, as air filters within the system become clogged with debris, a higher static pressure within the air filtration system develops and the induction motor is unable to deliver a satisfactory airflow. However, with clean filters there is a low static pressure and the induction motor delivers a high airflow, perhaps more than desired for the application. In addition, when known air filtration systems are part of a Heating Ventilation and Air Conditioning (HVAC) system, which typically includes a blower or fan, air flow levels through the air filtration system portion of the HVAC system cannot be tracked with the air flow levels through the HVAC portion of the system. In such a system, where two blower motors are operating independently, air pressure differences and airflow problems throughout the system result.
It would be desirable to have an air filtration system where the amount of airflow in the air filtration system is controlled using a control system used to adjust the operation of the blower motor. In such a system it would be further desirable that the air filtration blower motor tracks the operation of a HVAC system blower motor. It would be further desirable to make air filtration systems more efficient by using variable speed motors as blowers rather than constant speed induction motors.
BRIEF SUMMARY OF THE INVENTION
The present invention is, in one aspect, a method for improving performance in an air filtration system. The method includes monitoring performance of a blower motor in the air filtration system and adjusting blower motor torque based upon the measured blower motor performance.
REFERENCES:
patent: 2853155 (1958-09-01), Peter
patent: 4461633 (1984-07-01), Bodovsky
patent: 4921509 (1990-05-01), Maclin
patent: 5096474 (1992-03-01), Miller, Jr. et al.
patent: 5421844 (1995-06-01), Chiu
patent: 5433762 (1995-07-01), Chiu
patent: 5461368 (1995-10-01), Comer
patent: 5810908 (1998-09-01), Gray et al.
patent: 5856198 (1999-01-01), Joffe et al.
patent: 6030437 (2000-02-01), Gourrier et al.
patent: 6036757 (2000-03-01), Gatchell et al.
patent: 6168646 (2001-01-01), Craig et al.
patent: 60-147210 (1985-08-01), None
patent: 60-147212 (1985-08-01), None
patent: 5-154323 (1993-06-01), None
Archer William R.
Becerra Roger C.
Beifus Brian L.
Armstrong Teasdale LLP
General Electric Company
Smith Duane S.
Vick, Esq. Karl
Wasserbauer Esq. Damian
LandOfFree
Methods and systems for controlling air filtration systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and systems for controlling air filtration systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for controlling air filtration systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2878320