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3-D sensorless conversion method and apparatus for pump differential pressure and flow
Grant 10,119,545 - Cheng , et al. November 6, 2 | 2018-11-06 |
Dynamic linear control methods and apparatus for variable speed pump control
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Best-fit affinity sensorless conversion means or technique for pump differential pressure and flow monitoring
Grant 9,938,970 - Cheng , et al. April 10, 2 | 2018-04-10 |
Sensorless adaptive pump control with self-calibration apparatus for hydronic pumping system
Grant 9,897,084 - Cheng , et al. February 20, 2 | 2018-02-20 |
System and flow adaptive sensorless pumping control apparatus for energy saving pumping applications
Grant 9,846,416 - Cheng , et al. December 19, 2 | 2017-12-19 |
Mixed theoretical and discrete sensorless converter for pump differential pressure and flow monitoring
Grant 9,611,856 - Cheng , et al. April 4, 2 | 2017-04-04 |
System And Flow Adaptive Sensorless Pumping Control Apparatus For Energy Saving Pumping Applications
App 20160017889 - CHENG; Andrew A. ; et al. | 2016-01-21 |
Best-fit Affinity Sensorless Conversion Means Or Technique For Pump Differential Pressure And Flow Monitoring
App 20160010639 - CHENG; Andrew A. ; et al. | 2016-01-14 |
Sensorless Adaptive Pump Control with Self-Calibration Apparatus for Hydronic Pumping System
App 20150032271 - CHENG; Andrew A. ; et al. | 2015-01-29 |
Mixed Theoretical And Discrete Sensorless Converter For Pump Differential Pressure And Flow Monitoring
App 20140288716 - CHENG; Andrew A. ; et al. | 2014-09-25 |
3-D Sensorless Conversion Method and Apparatus for Pump Differential Pressure and Flow
App 20140249682 - CHENG; Andrew A. ; et al. | 2014-09-04 |
Dynamic Linear Control Methods And Apparatus For Variable Speed Pump Control
App 20140005841 - CHENG; Andrew A. ; et al. | 2014-01-02 |
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