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1. 发明授权

US11905976B2 Quick no-water startup apparatus for centrifugal pump 有权
公开(公告)号：US11905976B2
公开(公告)日：2024-02-20
申请号：US17787941
申请日：2021-08-05
申请人： Jiangsu University
发明人： Guangjie Peng , Shiming Hong , Hao Chang , Jialin Du
IPC分类号： F04D9/04 , F04D1/00 , F04D9/02
CPC分类号： F04D9/04 , F04D1/00 , F04D9/02
摘要： A quick no-water startup apparatus for a centrifugal pump includes, from top to bottom in sequence, one-way passages (1), a self-priming chamber housing (41), sliding devices (5), a self-priming chamber (4), chamber partition plates (2) a concave-convex impeller (3), inlet channels (6) connected on two sides of the self-priming chamber (4), a spring device (7) of an upper-side x-shaped gas-liquid separation device, the upper-side x-shaped gas-liquid separation device (8), upper and middle-side gas-liquid separation device connecting shafts (9), a middle-side gas-liquid separation device (10), lower-side backflow-type gas-liquid separation devices (11), v-shaped backflow channels (122), an inverted v-shaped inlet channel (121), and an inlet. The quick no-water startup apparatus of the present invention enables the centrifugal pump to directly enter a normal operating condition after no-water startup, and 36 times of air exhaust can be completed while the concave-convex impeller (3) in the self-priming chamber (4) rotates by a circle in the early stage. Besides, the apparatus is provided with the upper, middle, and lower gas-liquid separation devices to fully realize separation of gas and liquid, so that gas can be exhausted more quickly and the chamber is filled with water. Therefore, the working efficiency is significantly improved and the operation process is greatly simplified.

2. 发明授权

US11739755B2 Pneumatic type water-free starting self-priming device 有权
公开(公告)号：US11739755B2
公开(公告)日：2023-08-29
申请号：US18021187
申请日：2021-12-29
申请人： JIANGSU UNIVERSITY
发明人： Guangjie Peng , Jialin Du , Hao Chang , Shiming Hong
IPC分类号： F04D9/02 , B01D19/00
CPC分类号： F04D9/02 , B01D19/0042
摘要： Clean version of the Abstract A pneumatic type water-free starting self-priming device includes a driving device, and a gas-liquid separation chamber and an expandable gas-liquid separation chamber respectively arranged on two sides of the driving device. The driving device uses high-speed gas to drive a drive disk to rotate and drive a drive shaft to rotate. The gas-liquid separation chamber uses a telescopic piston shaft rod to generate a pressure difference between the gas-liquid separation chamber and outside to suck in water, so as to realize water suction, gas-liquid separation and water drainage. The expandable gas-liquid separation chamber uses shrinkage or expansion of volumes of inner and outer chambers to generate a pressure difference to suck in water, so as to realize water suction, gas-liquid separation and water drainage. Also, the high-speed gas from the driving device flows through the two chambers, so that air can be discharged quickly.

3. 发明授权

US11555497B2 Quick startup device for centrifugal pump 有权
公开(公告)号：US11555497B2
公开(公告)日：2023-01-17
申请号：US17680327
申请日：2022-02-25
申请人： Jiangsu University
发明人： Xiaowei Li , Hao Chang , Guangjie Peng , Shiming Hong , Weidong Shi
IPC分类号： F04D9/02 , F04D9/04 , F04D29/66 , F04D15/00 , F04D9/00 , F04C2/356 , B01D19/00 , F04D13/06
摘要： The present invention provides a quick startup device for a centrifugal pump. The device includes an upper self-priming chamber, a lower self-priming chamber, and an inlet pipe sequentially arranged from top to bottom. The upper self-priming chamber and the lower self-priming chamber are integrally mounted on the inlet pipe. A main shaft and a hexagonal partition member rotatably mounted on the main shaft are arranged on an axis of the upper self-priming chamber. A blade tip of each partition plate is closely attached to an inner wall surface of the upper self-priming chamber. Three identical accommodation grooves are provided on an inner side of the upper self-priming chamber. A spring and a separation baffle are arranged in each accommodation groove, an exhaust hole is provided on one side of each accommodation groove, and an air intake pipe is provided on the other side of each accommodation groove.

4. 发明授权

US11268516B2 Gas-lock re-prime shaft passage in submersible well pump and method of re-priming the pump 有权
公开(公告)号：US11268516B2
公开(公告)日：2022-03-08
申请号：US16678105
申请日：2019-11-08
申请人： BAKER HUGHES, A GE COMPANY, LLC
发明人： Xiaonan Lu , Risa Rutter , Zheng Ye
IPC分类号： F04D9/00 , F04D1/06 , F04D7/04 , E21B43/12 , F04D13/10 , F04D9/02
摘要： A well fluid centrifugal pump has a shaft passage in the shaft. The shaft passage has an open upper end above the impellers and a closed lower end below the impellers. An outlet port extends laterally from the shaft passage. A gas-lock re-priming device in the shaft passage diverts a portion of well fluid in the discharge adapter bore through the shaft passage and out the outlet port. The re-priming device may be a pressure actuated valve that is biased to a closed position and opens when the pressure in the discharge adapter bore drops below a minimum. Alternately, the re-priming device may be an orifice member with an orifice passage that continuously diverts a portion of the well fluid in the discharge adapter bore out the outlet port.

5. 发明授权

US10718337B2 Self-priming dedicated water feature pump 有权
公开(公告)号：US10718337B2
公开(公告)日：2020-07-21
申请号：US15646678
申请日：2017-07-11
申请人： Hayward Industries, Inc.
发明人： Jason W. Parcell , Scott Petty , Douglas H. Philhower , Kevin L. Potucek , Gary Ortiz , Jon Terence Stone
IPC分类号： F04D9/02 , F04D29/40 , F04D29/70
摘要： A self-priming dedicated water feature pump is provided. The water feature pump can include a strainer housing connected to a pump housing. The strainer housing can include a reservoir for allowing water to enter the strainer housing so that the pump can self-prime. The strainer housing can also include a post installed within the reservoir. The post can function to prevent a strainer basket from being installed in the strainer housing. The post can be of sufficient volume and/or geometry to allow enough water to enter the strainer housing so that the water feature pump can self-prime while also preventing a strainer basket from being installed in the strainer housing.

6. 发明申请

US20180258893A1 Fuel Pump and Fuel Supply System Using the Same 审中-公开
公开(公告)号：US20180258893A1
公开(公告)日：2018-09-13
申请号：US15456836
申请日：2017-03-13
申请人： DELPHI TECHNOLOGIES IP LIMITED
发明人： John G. Fischer
IPC分类号： F02M37/10 , F04D5/00 , F04D7/02 , F04D9/02 , F04D13/08 , F04D13/06 , F04D13/12 , F04D29/22 , F04D29/02 , F04D29/42
摘要： A fuel pump includes a motor having an armature which rotates about an axis, the motor also having a stator which circumferentially surrounds the armature such that a fuel passage is defined between the armature and the stator, whereby rotation of the armature induces a circumferential flow of fuel within the fuel passage; a pumping arrangement which is rotated by the armature and which pumps fuel from a first inlet to a first; a second inlet which introduces fuel into the fuel passage; a second outlet which discharges fuel from the fuel passage; and a flow impedance member in the fuel passage which impedes the circumferential flow of fuel within the fuel passage, thereby generating a pressure gradient across opposing sides of the flow impedance member such that fuel entering the fuel passage is pumped to the second outlet.

7. 发明申请

US20180094630A1 ONLINE MONITORING SYSTEM 审中-公开
公开(公告)号：US20180094630A1
公开(公告)日：2018-04-05
申请号：US15112365
申请日：2016-05-23
申请人： Wuhan China Star Optoelectronics Technology Co., Ltd.
发明人： Yanping YIN
IPC分类号： F04D9/02 , G01N1/14 , G01N1/20 , G01N33/18
CPC分类号： F04D9/02 , G01N1/14 , G01N1/18 , G01N1/2035 , G01N33/18 , G01N35/1095 , G01N2001/1418
摘要： The present invention discloses an online monitoring system, comprising a self-priming pump, a first sample pipe and a container containing a sample to be tested, and the first sample pipe connects the self-priming pump and the container, and the self-priming pump transports the ample to be tested in the container to the first sample pipe; the online monitoring system further comprises a fluid supplementation device connected with the first sample pipe, and a default level value is preset in the fluid supplementation device, and the fluid supplementation device monitors a level of the sample to be tested in the first sample pipe, and extracts the sample to be tested from the container to supplement to the first sample pipe as the level value of the sample to be tested in the first sample pipe is lower than the default level value.

8. 发明申请

US20180080449A1 Self-Priming Dedicated Water Feature Pump 审中-公开
公开(公告)号：US20180080449A1
公开(公告)日：2018-03-22
申请号：US15646678
申请日：2017-07-11
申请人： Hayward Industries, Inc.
发明人： Jason W. Parcell , Scott Petty , Douglas H. Philhower , Kevin L. Potucek , Gary Ortiz , Jon Terence Stone
IPC分类号： F04D9/02 , F04D29/70 , F04D29/40
CPC分类号： F04D9/02 , F04D29/406 , F04D29/708
摘要： A self-priming dedicated water feature pump is provided. The water feature pump can include a strainer housing connected to a pump housing. The strainer housing can include a reservoir for allowing water to enter the strainer housing so that the pump can self-prime. The strainer housing can also include a post installed within the reservoir. The post can function to prevent a strainer basket from being installed in the strainer housing. The post can be of sufficient volume and/or geometry to allow enough water to enter the strainer housing so that the water feature pump can self-prime while also preventing a strainer basket from being installed in the strainer housing.

9. 发明授权

US09903388B2 Centrifugal pump 有权
公开(公告)号：US09903388B2
公开(公告)日：2018-02-27
申请号：US14810549
申请日：2015-07-28
申请人： HONDA MOTOR CO., LTD.
发明人： Kouki Tsuruda , Masahiro Akiyama , Kaku Okabe
IPC分类号： F04D29/42 , F04D7/04 , F04D9/02
CPC分类号： F04D29/426 , F04D7/04 , F04D9/02 , F04D29/4273
摘要： A centrifugal pump includes an impeller rotatably disposed in a volute case for forcing a fluid to flow along a volute internal flow channel formed in the volute case, and first to fourth flow-channel recessed portions opening to the volute internal flow channel. The first and fourth flow-channel recessed portions are formed so as to be recessed in a direction substantially orthogonal to a direction of flow of the fluid. In a self-priming operation, the fluid is introduced into the first and fourth recessed portions whereupon the prime fluid is stirred within internal spaces of the first and second flow-channel recessed portions.

10. 发明授权

US09726181B2 Centrifugal pump 有权
公开(公告)号：US09726181B2
公开(公告)日：2017-08-08
申请号：US14476939
申请日：2014-09-04
申请人： Honda Motor Co., Ltd.
发明人： Yoshihiro Takahashi , Takahide Konchi
IPC分类号： F04D29/18 , F04D9/02 , F04D29/42 , F04D29/24 , F04D29/66
CPC分类号： F04D9/02 , F04D29/245 , F04D29/4293 , F04D29/669 , F05D2240/304 , F05D2250/294
摘要： An impeller includes a disk-shaped hub and a plurality of vanes provided radially on the surface of the hub. The plurality of vanes are formed in a whirling pattern about the center of rotation of the impeller, and each of the vanes has an outer peripheral surface facing the inner peripheral surface of the volute. A rotational-direction rear end portion of the outer peripheral surface of each of the vanes has a recessed step surface formed thereon. The rotational-direction rear end of the recessed step surface of each of the vanes is formed to define an edge shape with respect to a rotational-direction rear end surface of the vane.

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