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公开(公告)号：US10317894B2
公开(公告)日：2019-06-11
申请号：US15044670
申请日：2016-02-16
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , James J. Gu
IPC: G05B19/406 , G05B19/46 , F04D15/02
Abstract: Apparatus is provided featuring a signal processor or processing module configured to receive signaling containing information about a pump no flow idle (NFI) state when the pump is running at a pump idle speed; and determine corresponding signaling containing information about whether the pump should remain in a no flow shutdown (NFSD) state or the pump NFI state, based upon the signaling received. The signal processor or processing module is configured to provide the corresponding signaling containing information about whether the pump should remain in the NFSD state or the NFI state.
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2.发明授权公开(公告)号：US09897084B2
公开(公告)日：2018-02-20
申请号：US14339594
申请日：2014-07-24
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , James J. Gu , Graham A. Scott
CPC classification number: F04B49/065 , F04D15/0066 , G05D7/0676
Abstract: The present invention provides apparatus that features a signal processor or processing module configured to receive signaling containing information about an adaptive or self-calibrating set point control curve and a varying equivalent system characteristic curve based at least partly on an instant pump pressure and a flow rate using an adaptive moving average filter, and equivalent hydronic system characteristics associated with the instant pump pressure and the flow rate to corresponding motor power and speed reconstructed and remapped using a discrete numerical approach; and determine an adaptive pressure set point, based at least partly on the signaling received.
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公开(公告)号：US10670010B2
公开(公告)日：2020-06-02
申请号：US15616271
申请日：2017-06-07
Applicant: FLUID HANDLING LLC.
Inventor： Andrew A. Cheng , Kyle D. Schoenheit
Abstract: A pump controller features a signal processor configured to respond to signaling containing information about three corresponding discrete arrays with respect to a discrete motor speed for each system position at a motor speed derived from 3D discrete distribution surfaces of motor power, pump differential pressure and flow rate by respective numerical interpolations; and determine corresponding signaling containing information to control a pump, or pumps in a system of pumps, or a system of pumps based upon a corresponding pump differential pressure and flow rate at the motor speed for a corresponding power reading value determined using a numerical interpolation of the three corresponding discrete arrays, the signaling received. The signal processor is configured to provide the corresponding signaling as control signaling to control the pump, or the pumps in the system of pumps, or the system of pumps.
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公开(公告)号：US20180299909A1
公开(公告)日：2018-10-18
申请号：US15927296
申请日：2018-03-21
Applicant: FLUID HANDLING LLC.
Inventor： Andrew A. Cheng , Matt Ruffo , Jordan Ruff
IPC: G05D7/06
Abstract: A pump controller has a signal processor that receives signaling about an instant water level AIL of a liquid in a container and generated by a water level transducer during an empty/fill application; and determines corresponding signaling to control a pump during the empty/fill application based upon the signaling received using a liquid level control algorithm that turns ON the pump when the instant water level AIL rises above a maximum empty water level during an empty application, or falls below a maximum fill water level during a fill application; turns OFF the pump when the instant water level AIL falls below a minimum empty water level for the empty application, or rises above a second maximum fill water level during the fill application; controls the pump when the instant water level AIL is in a liquid level region above the minimum empty water level and below a second maximum empty water level for the empty application, or falls below the second maximum fill water level and above a second minimum fill water level during the fill application based upon a respective desired adaptive pressure set point SP* being defined from a respective adaptive liquid level control curve with respect to the instant water level AIL.
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5.发明授权公开(公告)号：US09846416B2
公开(公告)日：2017-12-19
申请号：US14730871
申请日：2015-06-04
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , James J. Gu , Graham A. Scott
CPC classification number: G05B13/041 , F04D15/0072 , F24F11/83
Abstract: A signal processor receives signaling containing information about flow rates from sensorless converters in zone circulators in heating/cooling zones controlled by temperature sensors in a hydronic heating system in order to derive an adaptive pressure set point to meet the flow rates requested by the heating/cooling zones using an adaptive system and flow control curve equation, the signaling containing information about total flow rates requested by the zone circulators; determines desired pump speeds for the zone circulators to meet temperature requirements in heat zones; provides corresponding signaling containing information about the desired pump speeds; and/or determines the adaptive pump control curve equation based upon an adaptive system curve and as a moving maximum system flow rate depending on an adaptive pressure set point, a system flow rate requested by temperature loads, a minimum pressure at no flow, a control curve setting parameter, and an adaptive moving maximum flow and pressure.
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Patent Agency Ranking
公开(公告)号：US10823176B2
公开(公告)日：2020-11-03
申请号：US16535773
申请日：2019-08-08
Applicant: FLUID HANDLING LLC
Inventor： James J. Gu , Andrew A. Cheng
Abstract: Apparatus, including a pump system, features a controller having a signal processor or processing module configured to: receive signaling containing information about a relationship between frequencies of pump vibration resonances detected around critical pump speeds and a 3-dimensional pump vibration power spectrum in the frequency domain with respect to pump speed and pump temperature change differences; and determine corresponding signaling containing information to adjust the pump speed to avoid the pump vibration resonances around the critical pump speeds, based upon the signaling received. The signal processor or processing module is also configured to provide the corresponding signaling as control signaling to adjust the pump speed.
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公开(公告)号：US10662954B2
公开(公告)日：2020-05-26
申请号：US15604990
申请日：2017-05-25
Applicant: FLUID HANDLING LLC.
Inventor： Andrew A. Cheng , Kyle D. Schoenheit
Abstract: Apparatus, including a pump system controller, features a signal processor or processing module configured at least to: receive signaling containing information about pump differential pressure, flow rate and corresponding power data at motor maximum speed published by pump manufacturers, as well as instant motor power and speed, for a system of pumps arranged in a multiple pump configuration; and determine corresponding signaling containing information about instant pump differential pressure and flow rate for the system of pumps arranged in the multiple pump configuration using a combined affinity equation and numerical interpolation algorithm, based upon the signaling received.
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公开(公告)号：US10048701B2
公开(公告)日：2018-08-14
申请号：US13717086
申请日：2012-12-17
Applicant: Fluid Handling LLC
Inventor： Andrew A. Cheng , James J. Gu , Graham A. Scott
Abstract: Apparatus, such as a pump controller, features a signal processor configured at least to: receive signaling containing information about a linear set point control curve based at least partly on an adaptive set point control curve related to fluid being pumped by a pump in a pumping system, and determine a control set point based at least partly on the signaling received. The signal processor may be configured to provide a control signal containing information to control the pump based on the control set point determined.
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公开(公告)号：US09938970B2
公开(公告)日：2018-04-10
申请号：US14680667
申请日：2015-04-07
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , James J. Gu , Graham A. Scott
CPC classification number: F04B51/00 , F04B17/03 , F04B49/065 , F04B49/103 , F04B49/106 , F04D15/0088 , F15B19/00 , F16K37/0075 , G01L5/0061
Abstract: The present invention provides apparatus, including a hydronic sensorless pumping system, that features a signal processor or processing module configured to receive signaling containing information about motor readout values of power and speed, and also about pump and system characteristics equations together with empirical power equations that are constructed by a polynomial best-fit function together with pump affinity laws based upon a pump curve published by a pump manufacturer; and determine corresponding signaling containing information about a pump or system pressure and a flow rate at the motor readout values of power and speed, based upon the signaling received.
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10.发明授权公开(公告)号：US09611856B2
公开(公告)日：2017-04-04
申请号：US14187817
申请日：2014-02-24
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , Graham A. Scott , James J. Gu
CPC classification number: F04D15/0066 , F04D15/0088
Abstract: The present invention provides apparatus featuring a signal processor or processing module that may be configured at least to: process signaling containing information about an equilibrium point of pump differential pressure and system pressure formulated in a hydronic domain by utilizing pump and system characteristic curve equations so as to yield system pressure and flow rate at any particular load and time in a pump hydronic system, including using a multi-dimensional sensorless conversion technique; and determine equivalent hydronic system characteristics associated with the pump differential pressure and flow rate to their corresponding motor power and speed reconstructed and remapped by using a discrete numerical approach, based at least partly on the signaling received. The signal processor or processing module may provide corresponding signaling containing information about the system pumping flow rate and pressure determined.
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