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1. 发明授权

EP3031063B1 LOW WATER CUTOFF SWITCH 有权
公开(公告)号：EP3031063B1
公开(公告)日：2020-10-07
申请号：EP14834019.3
申请日：2014-08-06
申请人： Fluid Handling LLC.
发明人： KARIA, Nimesh Pratapbhai , MUKKAWAR, Girish Subhash , AGRAWAL, Birdhilal Navalkishor , MEGHPARA, Kantilal Brijeshkumar
IPC分类号： H01H35/40

2. 发明授权

EP3092412B1 VARIABLE SPEED MULTI-PUMP APPLICATION FOR PROVIDING ENERGY SAVING BY CALCULATING AND COMPENSATING FOR FRICTION LOSS USING SPEED REFERENCE 有权
公开(公告)号：EP3092412B1
公开(公告)日：2019-11-13
申请号：EP15735427.5
申请日：2015-01-07
申请人： Fluid Handling LLC.
发明人： PATEL, Pradipkumar B. , GU, James J.
IPC分类号： F04D15/00 , F04B49/06 , F04B49/20 , F04C14/08

3. 发明公开

EP3513074A1 AUTOMATIC SELF-DRIVING PUMPS 有权
公开(公告)号：EP3513074A1
公开(公告)日：2019-07-24
申请号：EP17849752.5
申请日：2017-09-12
申请人： Fluid Handling LLC.
发明人： CHENG, Andrew A , JOHNSON, Christopher S. , GU, James J. , SCHOENHEIT, Kyle
IPC分类号： F04B49/00

4. 发明授权

EP2659141B1 METHOD AND APPARATUS FOR PUMP CONTROL USING VARYING EQUIVALENT SYSTEM CHARACTERISTIC CURVE, AKA AN ADAPTIVE CONTROL CURVE 有权转让
公开(公告)号：EP2659141B1
公开(公告)日：2019-05-29
申请号：EP11854418.8
申请日：2011-12-21
申请人： Fluid Handling LLC.
发明人： CHENG, Andrew A. , GU, James J.
IPC分类号： F04D15/00

5. 发明公开

EP3464901A1 DIRECT NUMERIC 3D SENSORLESS CONVERTER FOR PUMP FLOW AND PRESSURE 有权
公开(公告)号：EP3464901A1
公开(公告)日：2019-04-10
申请号：EP17810925.2
申请日：2017-06-07
申请人： Fluid Handling LLC.
发明人： CHENG, Andrew A. , SCHOENHEIT, Kyle D. , GU, James J.
IPC分类号： F04B49/06 , F04D15/00 , G05D7/06

6. 发明公开

EP3344878A1 VOLUTE DESIGN FOR LOWER MANUFACTURING COST AND RADIAL LOAD REDUCTION 审中-实审
公开(公告)号：EP3344878A1
公开(公告)日：2018-07-11
申请号：EP16843190.6
申请日：2016-09-06
申请人： Fluid Handling LLC.
发明人： RUZICA, Paul J.
IPC分类号： F04D29/00 , F04D29/40 , F04D29/42 , F04D29/44
CPC分类号： F04D29/445 , F04D29/428
摘要： A volute for a pump featuring a volute or casing having a pump inlet for receiving a fluid being pumped, a pump discharge for providing the fluid, and a volute or casing vane forming double volutes therein. The volute has an upper cutwater farthest from the pump discharge defining an upper cutwater throat area and an end of passage for the upper cutwater, and also has a lower cutwater closest to the pump discharge defining a lower cutwater throat and a corresponding end of passage for the lower cutwater. The upper cutwater throat area is dimensioned to be greater than and not equal to the lower cutwater throat area so the upper cutwater throat area and the lower cutwater throat area provide substantially equal flow velocity at both the upper cutwater and the lower cutwater in response to an angular sweep of the fluid being pumped. The end of passage for the upper cutwater is dimensioned with an upper cutwater passage area that is greater than and not equal to a corresponding lower cutwater passage area of the corresponding end of passage for the lower cutwater so that upper and lower cutwater passage areas at the pump discharge are balanced as a function of differing rates of flow of the fluid being pumped therein and so that the fluid being pumped from associated ends of the upper and lower cutwater passage areas meets at the pump discharge with a substantially equal velocity.

7. 发明公开

EP3326042A1 ADVANCED REAL TIME GRAPHIC SENSORLESS ENERGY SAVING PUMP CONTROL SYSTEM 审中-公开
公开(公告)号：EP3326042A1
公开(公告)日：2018-05-30
申请号：EP16831117.3
申请日：2016-07-22
申请人： Fluid Handling LLC.
发明人： CHENG, Andrew A. , GU, James J. , PATEL, Pradipkumar B. , SCHOENHEIT, Kyle D.
IPC分类号： G05D7/06 , G05D7/00
CPC分类号： F04D27/001 , F04D15/0088 , G05B13/021
摘要： Apparatus includes a signal processor that receives signaling containing information about real time pump operating parameters related to pumps forming part of a pumping system in a plant/facility, and a user input selecting a pump for displaying the real time pump operating parameters on a control monitor to allow a plant/facility operator to implement a centralized pump control of the pumps at a given centralized location; and that determines corresponding signaling containing information to display on the control monitor the real time pump operating parameters to allow the plant/facility operator to implement the centralized control of the pumps at the given centralized location, based upon the signaling received.

8. 发明公开

EP3152631A4 SYSTEM AND FLOW ADAPTIVE SENSORLESS PUMPING CONTROL APPARATUS FOR ENERGY SAVING PUMPING APPLICATIONS 有权
公开(公告)号：EP3152631A4
公开(公告)日：2018-01-10
申请号：EP15802801
申请日：2015-06-04
申请人： FLUID HANDLING LLC
发明人： CHENG ANDREW A , GU JAMES J , SCOTT GRAHAM A
IPC分类号： F24D19/10 , G05D7/06
CPC分类号： F24D19/1012 , F24F11/83 , G05D7/0676 , Y02B30/745
摘要： 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.

9. 发明公开

EP3256728A1 NO FLOW DETECTION MEANS FOR SENSORLESS PUMPING CONTROL APPLICATIONS 审中-公开
标题翻译：无流量检测装置，用于无传感器泵送控制应用
公开(公告)号：EP3256728A1
公开(公告)日：2017-12-20
申请号：EP16750063.6
申请日：2016-02-16
申请人： Fluid Handling LLC.
发明人： CHENG, Andrew A. , GU, James J.
IPC分类号： F04B49/06
CPC分类号： G05B19/4155 , F04D15/00 , G05B2219/45219
摘要： 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.

10. 发明公开

EP3031063A1 LOW WATER CUTOFF SWITCH 有权
标题翻译：低水位电器开关
公开(公告)号：EP3031063A1
公开(公告)日：2016-06-15
申请号：EP14834019.3
申请日：2014-08-06
申请人： Fluid Handling LLC.
发明人： KARIA, Nimesh Pratapbhai , MUKKAWAR, Girish Subhash , AGRAWAL, Birdhilal Navalkishor , MEGHPARA, Kantilal Brijeshkumar
IPC分类号： H01H35/40 , H01H35/18 , F16K31/12
CPC分类号： F16K25/005 , E03B7/00 , G01F23/56 , H01H35/40 , H01H2239/036
摘要： A low water cut-off switch assembly features a two-part base assembly having a lower base part and an upper base part. The lower base part is made from a metallic material, configured to be adapted on piping having a fluid flow, and also configured with a central orifice to receive a paddle arm that pivots on an axis in response to the fluid flow in the piping. The upper base part is made from a non-metallic material, configured with a corresponding central orifice to receive the paddle arm, and configured with a channel to receive a pivot arm to mount and allow the paddle arm to pivot on the axis in order to actuate an ON/OFF switch in response to the fluid flow. The non-metallic material of the upper base part has a substantially lower coefficient of heat transfer than the metallic material of the lower base part, so as to substantially reduce condensation build-up in the low water cut-off switch, e.g., especially when the low water cut-off switch is used in applications exposed to temperatures below freezing, including chiller applications.

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