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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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92.发明授权公开(公告)号：US10533570B2
公开(公告)日：2020-01-14
申请号：US15371878
申请日：2016-12-07
Applicant: Fluid Handling LLC
Inventor： Paul J. Ruzicka , Christopher J. Felix
Abstract: An opposing impeller arrangement, for using in an opposed impeller pump, features a combination of a stage 1 impeller arrangement and a stage 2 impeller arrangement having opposing impellers and different impeller and wear ring arrangements. The stage 1 impeller arrangement may include a stage 1 impeller and a stage 1 wear ring, and be configured to receive an input fluid flow and a pump stage 1 fluid flow. The stage 2 impeller arrangement may include a stage 2 impeller and a stage 2 wear ring configured to receive the pump stage 1 fluid flow and provide a pump stage 2 fluid flow, and may also include a stage 2 wear ring undercut configured between the stage 2 impeller and the stage 2 wear ring to offset generated axial thrust in the opposing impeller pump, based upon the different impeller and wear ring arrangements.
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公开(公告)号：US10429063B2
公开(公告)日：2019-10-01
申请号：US15417612
申请日：2017-01-27
Applicant: Fluid Handling LLC
Inventor： Pratik N. Shah , James J. Gu
IPC: F22B35/18
Abstract: A technique for determining a boiler water condition includes a boiler controller (aka PSE unit) having a signal processor that implements a boiler control algorithm to receive signaling containing information about sets of N consecutive probe data samples related to a boiler water condition; determine stable average signaling containing information about a stable average by averaging a set of N consecutive probe data samples in the signaling received; determine present stable average signaling containing information about a present stable average by averaging a present set of N consecutive probe data samples in the signaling received; and determine corresponding signaling containing information about the boiler water condition, based upon whether the present stable average is within an allowable limit and a comparison of the present and previous stable average signaling determined.
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公开(公告)号：US20190136861A1
公开(公告)日：2019-05-09
申请号：US16141210
申请日：2018-09-25
Applicant: FLUID HANDLING LLC.
Inventor： Florin ROSCA , Indresh Ishwarlal BHATIA , James Jin-hau GU , Naman Maheshkumar RAVAL
Abstract: A system includes power harvesting circuitry in combination with energy storage and conversion circuitry. The power harvesting circuitry may be configured to respond to energy generated by rotary machinery having at least condition being monitored by at least one component having at least one electronic circuit, and provide harvested power. The energy storage and conversion circuitry may be configured to respond to the harvested power provided from the power harvesting circuitry, and provide stored and converted power to the at least one component for monitoring the least one condition of the rotary machinery.
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公开(公告)号：US10132305B2
公开(公告)日：2018-11-20
申请号：US14591240
申请日：2015-01-07
Applicant: Fluid Handling LLC.
Inventor： Pradipkumar B. Patel , James J. Gu
Abstract: Apparatus features a signal processor or processing module configured to respond to signaling containing information about a set point and a speed related to one or more pumps in a pump system, e.g., including a variable speed multiple pump booster system, operating at a substantially constant discharge pressure; and determine an adjustment to the set point to compensate for system friction loss and maintain the substantially constant discharge pressure of the variable speed multiple pump booster system for flow variation, based at least partly on the signaling received. The signal processor or processing module 10a provides corresponding signaling containing information to control the one or more pumps in the variable speed multiple pump booster system.
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Patent Agency Ranking
公开(公告)号：US20180283733A1
公开(公告)日：2018-10-04
申请号：US15815103
申请日：2017-11-16
Applicant: FLUID HANDLING LLC.
Inventor： Pratik Naresh SHAH , Ronan STEPHENS , James J. GU
IPC: F24H9/20
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：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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公开(公告)号：US20170314982A1
公开(公告)日：2017-11-02
申请号：US15581437
申请日：2017-04-28
Applicant: Fluid Handling LLC
Inventor： Pratik SHAH , Ronan STEPHENS , James J. GU
CPC classification number: G01F23/22 , F24D2220/048 , F24H9/2007 , G01F23/0061 , G05B9/02 , G08B5/36
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：US20170298948A1
公开(公告)日：2017-10-19
申请号：US15452068
申请日：2017-03-07
Applicant: FLUID HANDLING LLC.
Inventor： Paul J. RUZICKA , Christopher J. FELIX , Marcos D. ROIMICHER
IPC: F04D29/056 , F04D17/16 , F04D17/12
Abstract: A multi-stage pump featuring different stages configured to pump a fluid from a pump suction and to a pump discharge; and a center bushing configured between the different stages, having a center bushing side configured with pockets to balance axial forces between the different stages of the multistage pump. The pockets are configured as curved rib pockets, extruded circle or circular pockets, or full length rib pockets.
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