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1.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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公开(公告)号：US11009259B2
公开(公告)日：2021-05-18
申请号：US15815103
申请日：2017-11-16
Applicant: FLUID HANDLING LLC.
Inventor： Pratik Naresh Shah , Ronan Stephens , James J. Gu
Abstract: A switch assembly features an automatic switch and an electronic circuit board. The automatic switch has a common contact and a normally open switch contact to short when a boiler has sufficient water, and has the common contact and a normally closed switch contact to short when the boiler has a low water level. The electronic circuit board has a signal processor, a reset switch, and a low water status LED for providing a status indication of a low water condition that remains ON even if the water level has risen unless the reset switch is reset. The signal processor couples to the common contact, the normally closed switch contact and the normally open switch contact, senses signaling containing the status of the common contact, the normally closed switch contact and the normally open switch contact, provides corresponding signaling to turn ON the low water status LED when the water level is low, and responds to a reset switch signal and turn OFF the low water status LED.
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公开(公告)号：US11686610B2
公开(公告)日：2023-06-27
申请号：US17110713
申请日：2020-12-03
Applicant: Fluid Handling LLC
Inventor： James J. Gu , Florin Rosca , Tomm V. Aldridge , Stephen Clark , Damien Galzin
IPC: G01H1/00 , G01M13/045 , H02K11/25 , G01K13/08 , G01D21/02
CPC classification number: G01H1/003 , G01D21/02 , G01K13/08 , G01M13/045 , H02K11/25
Abstract: A condition monitoring device for monitoring machinery includes a combination of on-board sensors and a condition monitoring module. The on-board sensors include modules for non-contact temperature, magnetic flux and 3-axis vibration sensing of the machinery. The condition monitoring module provides a condition monitoring signal containing information about an operating condition of the machinery, based upon a data synthesis condition monitoring technique that synthesizes non-contact temperature, magnetic flux and 3-axis vibration sensed data received from the combination of on-board sensors, determines a current operating condition of the machinery, and compares the current operating condition and the baseline operating condition of the machinery.
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公开(公告)号：US11248598B2
公开(公告)日：2022-02-15
申请号：US16436314
申请日：2019-06-10
Applicant: Fluid Handling LLC
Inventor： Gaurav B. Vala , James J. Gu
Abstract: Apparatus features a controller having a signal processor or processing module configured to: receive signaling containing information about a power profile that is specific to a pumping system having N parallel pumps and based upon data related to one or more of pumping system power, losses and wire-to-water efficiency in real time for the N parallel pumps configured to run in the pumping system to generate a head H and a flow F with an efficiency E, and at least one calculation/prediction of at least one corresponding efficiency of at least one combination/number of N−1 and/or N+1 parallel pumps to achieve a corresponding/same head H and flow F with a corresponding efficiency; and determine corresponding signaling containing information to control the operation of the pumping system that depends on a comparison of the efficiency E and the at least one corresponding efficiency, based upon the signaling received, including staging/destaging a pump to or from the pumping system.
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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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Patent Agency Ranking
6.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：US11022985B2
公开(公告)日：2021-06-01
申请号：US14969723
申请日：2015-12-15
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , James J. Gu
Abstract: A discrete valve flow rate converter is provided to obtain a system flow through a valve in a dynamic hydronic pumping system, e.g., based on signaling containing information about the valve's differential pressure and the valve's hydronic characteristics calibration data. The discrete valve flow rate converter resolves the valve system flow rate directly and accurately with the valve's open position and the corresponding valve differential pressure signals associated therewith. The discrete valve flow rate converter may be applied to all kinds of valves as long as their open position and differential pressure associated with is available, e.g., including implementations for control valve applications, e.g., where the valve open position is controlled automatically and accurately, as well as implementations either for pumping system pressure controls with the flow rate known, such as adaptive hydronic system pressure controls, or as an alternative to sensorless pump monitoring and control.
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公开(公告)号：US10670024B2
公开(公告)日：2020-06-02
申请号：US15173781
申请日：2016-06-06
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , James J. Gu , Kyle D. Schoenheit
Abstract: A pumping system having a pump includes a pump controller having 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; and determine corresponding signaling containing information about instant pump differential pressure and flow rate using a combined affinity equation and numerical interpolation algorithm to control the pump in the pumping system, based upon the signaling received.
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公开(公告)号：US10473507B2
公开(公告)日：2019-11-12
申请号：US15581437
申请日：2017-04-28
Applicant: Fluid Handling LLC
Inventor： Pratik Shah , Ronan Stephens , James J. Gu
Abstract: A switch assembly includes an automatic type 11 switch having 1 and 2 contacts and 3 and 4 contacts with the 2 and 3 contacts being shorted together, configured to respond to a water level of a boiler, short the 1 and 2 contacts when the water level is high, short the 3 and 4 contacts when the water level is low; and an electronic circuit board having a processor configured to sense signaling containing information about the 1, 2/3 and 4 contacts, and provide control signaling containing information about the water level of the boiler. The electronic circuit board also includes a relay configured to respond to the control signaling, and turn the relay on/off.
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公开(公告)号：US10119545B2
公开(公告)日：2018-11-06
申请号：US14091795
申请日：2013-11-27
Applicant: Fluid Handling LLC.
Inventor： Andrew A. Cheng , Graham A. Scott , James J. Gu
Abstract: The present invention provides apparatus featuring a signal processor or processing module that may be configured at least to: receive signaling containing information about calibrated motor speed and power data for a hydronic pumping system; and determine system pumping flow rate and pressure associated with an equivalent hydronic system characteristic variable, based at least partly on the signaling received. The signal processor or processing module may be configured to provide corresponding signaling containing information about the system pumping flow rate and pressure determined. The corresponding signaling may contain information used to control the hydronic pumping system.
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