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JP7057145B2 |
To provide a self-priming pump and a pump unit capable of setting a return flow path in an open state surely during self-priming operation and in a closed state surely during liquid-pumping operation, and thus capable of enhancing operat...
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JP6942091B2 |
To reduce the number of components to reduce costs, realize miniaturization and weight saving of a device, and obtain stable and high self-priming performance.A pump device comprising an impeller (5) connected to an electric motor (1) in...
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JP2021148031A |
To shorten self-priming time in a self-priming type vortex pump.A vortex pump 1 includes: an impeller 7; and a pump casing 3 which stores the impeller 7 in a rotatable manner, and in which a discharge port 5 is formed for discharging a l...
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JP6927802B2 |
To provide a pump capable of efficiently cooling a motor.The present invention relates to a pump configured to guide water from a suction port 1 to a discharge port in an upper part of the pump. The pump consists of a suction pipe part, ...
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JP6916680B2 |
To provide a water supply device that is easily portable in a narrow place, a conveying method for the water supply device, and a conveying jig for the water supply device.A water supply device 1 comprises a pump 2 for pressurizing liqui...
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JP6916679B2 |
To provide a pump unit that can enhance a cooling effect inside a unit cover.A pump unit comprises a unit base 5 provided with a pump 2, a unit cover 6 for covering the pump 2, and a cooling fan 61 arranged together with the pump 2 insid...
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JP6918592B2 |
To ensure that a degree of falling water or a degree of possibility can be easily grasped by using a simple structure in a pump device.A pump device 10 comprises a pump 13 comprising an impeller 21 and a pump casing 20, a vacuum pump 30 ...
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JP6873789B2 |
To provide a plug which achieves good workability with fingers and can be removed by a highly versatile tool.A plug 1 includes: a male screw part 12; and a head part 11 provided at one end of the male screw part 12 and having a discoid b...
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JP6865648B2 |
To grasp a full water detection error.A control device comprises: a determination part for determining a preset suction pressure that is a suction pressure of a vacuum pump 2 estimated in the case of full water or a preset current value ...
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JP2021063488A |
To provide a pump which can decrease frequency of priming performed at the start of the operation.A pump 1 has a circulation part 20 which circulates a liquid 100 in a housing 10 and has an inflow side storage part 50 which communicates ...
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JP6849988B2 |
To provide a self-priming pump capable of shortening a self-priming time by enhancing discharge efficiency for air in a liquid without using any complicated structure.The present invention relates to a self-priming pump comprising a casi...
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JP2021046848A |
To provide a self-priming pump improved in assemblability.A self-priming pump 1 includes an impeller 2, a motor 3 driving the impeller 2, and a casing 4 housing the impeller. The motor 3 includes: a stator 5; a stator mold 8 covering the...
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JP2021046849A |
To provide a self-priming pump capable of reducing vibration generated by rotation of an impeller.A self-priming pump 1 comprises an impeller 2, an electric motor 3 that drives the impeller 2, and a casing 4 that houses the impeller 2. T...
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JP6823914B2 |
To obtain a vortex flow type pump unit which is inexpensive and achieves excellent durability and low noise.In a vortex flow type pump unit, a rotary shaft of an electric motor penetrates through a synthetic resin-made casing and is fast...
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JP6825829B2 |
To enable a priming plug to be easily rotated with smaller force.A priming plug includes a head part and a screw part, and the screw part is screwed into a priming inlet provided in a pump casing. The head part includes a pair of project...
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JP6775813B2 |
To provide a self-priming pump capable of improving withdrawal performance and improving discharge flow rate.This invention relates to a self-priming pump comprising a casing having fluid intake port and fluid discharging port; an impell...
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JP6754604B2 |
To provide a feed water supply system including a self-priming pump capable of improving a pump performance at the time of liquid pumping-up operation without decreasing a self-priming performance at the time of self-priming operation.A ...
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JP6719103B2 |
A vortex pump (1) is provided with an impeller (3) and a casing (2) which accommodates the impeller (3) with freedom to rotate, and in which a discharge port (22) which discharges a liquid is formed. The casing (2) is provided with a vor...
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JP6665082B2 |
To curb a pressure loss to a maximum extent when a paddle type flow sensor is used.A water supply unit comprises: a self-priming chamber which is installed at a discharge port side of a vortex pump driven by a drive motor; a gas-liquid s...
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JP6655346B2 |
To provide a pump device capable of improving self-priming performance.A pump device 10 comprises an impeller 50, a liner part 70, a cover 100, a motor 20, a rotating shaft 30, a flow passage part 110 which is provided protruding from an...
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JP6647893B2 |
To confirm the soundness of a flap valve in a simple configuration without raising a flap valve on a water level in a pump machine field using a horizontal shaft pump.A pump machine field comprises: a suction sump; a discharge sump; and ...
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JP6647050B2 |
To provide a priming cup structure and a water supply device that can prevent water from splashing from a priming cup.A priming cup structure 33 used for a water supply device 1 comprises: a priming cup provided in an upper surface of a ...
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JP6592231B2 |
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JP2019163715A |
To provide an electric pump usable for a well or the like where a water surface is changed in a prescribed depth (a depth of about 9 m, for instance) without a complicated structure.An electric pump 1 includes: a first fixture 9 for susp...
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JP6571811B2 |
To improve the reliability in decision whether a self-priming pump is performing a self-priming operation or not in a simple configuration.A driving device (inverter 30) of a self-priming pump of the invention comprises a current detecto...
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JP3222609U |
To add a self-priming function to a non-clog pump, which is an apparatus used by attaching to a pump casing of the non-clog pump. A device used by being attached to a casing 2 of a non-clog pump, the suction pipe 20 being attached betwee...
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JP2019132135A |
To provide a self-priming pump and a pump unit capable of accurately detecting full-water in the pump and a suction pipe.A pump 11 includes an impeller 11a, a pump casing 11b storing the impeller 11a, and a switch 33 for switching from a...
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JP6530993B2 |
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JP2019086004A |
To improve the reliability in decision whether a self-priming pump is performing a self-priming operation or not in a simple configuration.A driving device (inverter 30) of a self-priming pump of the invention comprises a current detecto...
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JP6514643B2 |
An entrainment-reducing assembly may include a container configured to hold a liquid. A venting arrangement may extend into an upper portion of the container and be configured to direct condensable and non-condensable gases into the cont...
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JP6469384B2 |
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JP6463131B2 |
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JP2019011702A |
To restrict the increment in passing water resistance during pump unit operation.A pump unit comprises an impeller 12 connected to an electric motor in a casing 11 and connecting a casing cover 14 to a suction flange 15 via a water-seali...
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JP2018204566A |
To provide a self-priming centrifugal pump capable of improving self-priming performance with a simple structure.A self-priming centrifugal pump comprises an impeller, and a pump casing storing the impeller. In the pump casing, provided ...
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JP2018178856A |
To suppress heating of a casing during self-priming operation of a pump device.A pump device includes: an impeller (16) rotationally driven by a motor (2); a casing (17) positioned so as to cover an outer periphery of the impeller (16), ...
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JP2018178742A |
To provide a pump unit that can properly support a frozen crack due to handling fluid.A pump unit 100 includes: a pump device 1 provided with a plurality of entry/exit ports for water; and a closing device 60 closing at least a discharge...
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JP2018178716A |
To provide a pump inspection jig capable of easily inspecting an inspection portion using an endoscope, even in a pump casing not provided with an inspection port at an upper part of the inspection portion.A pump inspection jig 20 inspec...
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JP2018178855A |
To achieve cost reduction, miniaturization and lightweight of a device by reducing the number of components and acquire stable and excellent self-priming performance.A pump device includes: a head chamber (23) having an air-water separat...
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JP2018145931A |
To provide a pump facility that can reliably prevent liquid from flowing into a vacuum device.A pump facility comprises an impeller 6, a pump casing 7 in which the impeller 6 is housed, a vacuum pipe 9 connected to the pump casing 7 at a...
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JP2018131992A |
To provide a water supply device which does not require opening of a faucet (such as a cock) in a building and further is capable of preventing water from being splashed when a water drain valve is unfastened during water drain work.A wa...
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JP2018112070A |
To provide a fluid delivery device which enables gas drainage from a motor pump to be securely performed even if a non-return valve is provided at a discharge pipeline.A canned motor pump 12 has: a suction port 22 provided at a lower par...
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JP2018066278A |
To provide a water supply system that can constantly fill inside a pump with water and transport the water immediately.A water supply system includes: a pump 1; a suction pipe 2 connected to a suction port 1a of the pump 1; a discharge p...
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JP6316613B2 |
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JP2018009549A |
To improve self-priming performance during a self-priming operation of a pump, without deteriorating discharge performance during normal operation of the pump.A self-priming pump 10 is equipped with a pump case 12; an impeller case 22 di...
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JP2017210930A |
To provide a regenerative pump capable of suppressing energy loss produced on a gas-liquid separation plate and suppressing deterioration of efficiency of the pump.A regenerative pump 1 includes a casing 2 formed of a delivery port for d...
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JP6236535B2 |
An open water pump comprises an upper casing, a lower casing, an impeller having a central shaft and a plurality of blades. Each blade has an upper portion and a lower portion. The upper casing has an upper chamber, the lower casing has ...
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JP6229514B2 |
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JP2017180254A |
To provide an impeller in which noise can be reduced without degrading pump performance by simple processing.An impeller 1 according to the present invention comprises a disk-shaped main plate 12, and a blade 14 erected from the main pla...
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JP2017180655A |
To provide a non-return valve which unfailingly prevents reverse flow of a liquid.A non-return valve 7 of the invention has: a valve seat 15 having a seat surface 15a and in which a passage 15b extending from the seat surface 15a is form...
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JP2017172376A |
To provide a water supply unit having excellent cooling performance.A water supply unit according to an embodiment of the present invention comprises: a box-shaped first base that comprises a bottom part, and a peripheral wall part exten...
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