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JP6917704B2 |
To improve pump efficiency by suppressing a flow force loss of a fluid in a multi-stage pump which comprises an impeller and a guide blade and generates a centrifugal force in the fluid.A multi-stage pump 1 comprises: a main shaft 3 whic...
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JP6882959B2 |
The invention provides a drainage pump and an air conditioner. In the drainage pump enabling a pump rotor (2) to rotate in a pump case (1), the vibration of the pump case (1) can be inhibited withoutreducing drainage flow. A centrifugal ...
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JP6876457B2 |
The present invention discloses a pump, a home appliance having the same, and a method used for operating the home appliance. The pump used for the home appliance using water, such as a dish-washing machine, a washing machine, etc., comp...
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JP6857429B1 |
To provide a drainage impeller having an annular groove. A drainage impeller having an annular groove is composed of a shaft center and an annular bottom plate. The axis has a plurality of main blades. The plurality of main blades are fo...
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JP6854687B2 |
To provide a multistage fluid machine capable of improving revolution removal performance in a return channel while reducing rotor-stator blade interference with a blade of a subsequent stage of impeller.With respect to a height of a rev...
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JP2021050693A |
To provide a vertical multistage pump that can restrain a decrease in suction performance of the pump.A vertical multistage pump 1 comprises: a rotating shaft 2 extending in a vertical direction; a plurality of impellers 4 fixed to the r...
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JP2021050652A |
To provide an air conditioning device that can reduce noise.An air conditioning device according to an embodiment comprises a centrifugal pump and a control unit. The control unit controls an operation of the centrifugal pump. The centri...
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JP6850628B2 |
To provide a centrifugal pump that comprises a casing that can improve pump efficiency.A centrifugal pump comprises a main shaft 1, an impeller 2 fixed to the main shaft 1, and a casing 3 internally housing the impeller 2. The casing 3 c...
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JP6831108B2 |
The purpose of the present invention is to provide a drain pump which, even when reduced in size, can prevent entry of water into a motor. For this purpose, a drain pump of the present invention is provided with: a motor provided with a ...
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JP2021011840A |
To form a simple constitution of an inducer which can suppress an instable phenomenon of a cavitation, and can improve suction performance.An inducer 1 comprises: a hub 1D which is arranged so as to be rotationally driven; and a first bl...
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JP6823649B2 |
A shear flow turbomachinery device includes a housing having housing walls defining a cavity, a shaft extending into the cavity though a shaft opening in the housing wall at an end of the cavity, a rotor coupled to the shaft within the c...
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JP6800712B2 |
Provided is a drainage pump capable of suppressing the occurrence of a separated flow at a discharge part. The drainage pump (1) has a housing (10) housing a rotary vane (30) for taking up drainage water by being rotated by a motor (40)....
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JP6793254B2 |
A double suction impeller is disclosed. In at least one embodiment, the impeller is configured for centrifugal pumps and hydraulic power recovery turbines. The impeller's flow-path arrangement comprises inter-blade channels, intersecting...
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JP6785000B2 |
To attain a rotary machine with less vibration.A rotor includes an internal flow passage 10 configured to guide liquid from a rotational axis core L1 to radial outside. The internal flow passage 10 comprises a plurality of flow passages ...
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JP6771768B2 |
The purpose of the present invention is to provide a drainage pump capable of reducing the amount of water outflow into a chamber positioned above a pump chamber. In order to achieve this purpose, the drainage pump is equipped with: rota...
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JP6771784B1 |
To provide a drainage impeller having a balance hole. A drainage impeller having a balance hole includes a shaft center, an annular bottom plate and an annular wall surface. The axis has a plurality of main blades extending outward along...
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JP6761047B2 |
[Problem] To provide a drain pump configured so that the accumulation of water in a discharge section can be prevented. [Solution] A drain pump 1 is provided with a housing 10 having: a body section 11 inside which a space into which wat...
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JP2020148111A |
To suppress deterioration of pump efficiency of a centrifugal pump.A centrifugal pump 10 includes an impeller that has a plurality of blades on a surface of a main plate, and a housing 11 that has a pump chamber rotatably housing the imp...
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JP2020143599A |
To improve a seal performance and to achieve improvement in pump performance as a result while suppressing increase in processing cost of a seal and maintaining a vibration performance.In a multistage centrifugal pump, a position separat...
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JP6754333B2 |
The utility model provides a drainage pump. In drainage pump, can be so that the rotation center of rotor and the the central axis of the rotor receiving room of casing down lie in mode on the commonthe central axis at rotor receiving ro...
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JP6730955B2 |
To accurately machine a flow passage from both directions on an upstream side and a downstream side.A casing for storing a plurality of impellers (5) is constituted of a first casing (11) and a second casing (12). A plurality of partitio...
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JP6720373B2 |
[Problem] To provide a drain pump configured so that the accumulation of water in a discharge section can be prevented. [Solution] A drain pump 1 is provided with a housing 10 having: a body section 11 inside which a space into which wat...
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JP6712159B2 |
This diffuser (250) is provided with: a case part (260, 270) for demarcating a cylindrical passage so that the diameter thereof is narrowed from a fluid inflow side toward an outflow side; and a plurality of diffuser blade parts (280) fo...
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JP2020076323A |
To provide a return blade assembly which can reduce a loss of fluid energy.A return blade assembly 12 is a device for introducing liquid discharged from an impeller up to a fluid inlet of a next-stage impeller. The return blade assembly ...
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JP6694615B2 |
The purpose of the present invention is to provide a rotary vane member for a pump and a drainage pump with a high lift capability for liquids such as water. In order to achieve this purpose, the rotary vane member for a pump is provided...
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JP2020070718A |
To provide a liquid delivery pump capable of suppressing operation noise of the pump while reducing leakage loss to improve pump efficiency.A liquid delivery pump 1 includes a fluid suction part 11 formed at one end of a pump housing 10,...
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JP2020060115A |
To provide a liquid feed pump capable of forming smooth flow of fluid inside the pump to improve pump efficiency.A liquid feed pump 1 is configured such that a centrifugal impeller 11 and a centripetal impeller 15 are alternately arrange...
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JP2020041539A |
To solve a problem that, when rotating a cylindrical vessel having a radius of, for example, 15 cm at 3,000 rpm, a water level difference between surfaces of an external periphery and a center part reaches 113 m, however, it is a surpris...
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JP6668313B2 |
[Problem] To provide a motor for a drain pump, a manufacturing method therefor, and a drain pump having the motor, wherein misalignment between axes can be effectively suppressed in a structure in which a bearing is mounted to a resin mo...
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JP6647277B2 |
A centrifugal pump with a barrel casing and a ventilation arrangement is provided. A plug-in unit is arranged in the barrel casing. The plug-in unit has a shaft, and at least one impeller is arranged on the shaft. The impeller is enclose...
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JP6639881B2 |
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JP6636468B2 |
A rotor assembly for a centrifugal pump includes a rotor and a rotor cover, defining a fluid chamber therebetween, and having openings or channels that are provided in either the rotor cover or the rotor, or both, to direct fluid from th...
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JP6621115B2 |
A centrifugal pump of the pitot type is structured with axially-arranged inlet and discharge features positioned on opposing axial sides of a rotor, the rotor being journalled between a rotating sleeve and a suction inlet, and the rotati...
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JP6608015B1 |
To provide a vertical multi-stage pump having a high lift at a low cost. A vertical multi-stage pump 1 is connected to a motor 11 and an inverter 91 whose rated rotation speed of the motor 11 is set higher than the maximum rotation speed...
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JP6602008B2 |
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JP6596307B2 |
The present invention provides a drain pump with easy dismounting of a pump housing and improved work such as maintenance. A snap joint arm (11) is installed at the pump housing (10) through a U-shaped flexible portion (11a). The U-shape...
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JP6596545B1 |
To provide a vertical multi-stage pump for preventing deterioration of pumping performance. A vertical multi-stage pump 1 is arranged above a main shaft 12 extending in the direction of gravity, a plurality of first pumps 32 for pumping ...
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JP6582086B1 |
To provide a pump device and a pump casing capable of obtaining high pump efficiency. A pump device according to an embodiment includes a first impeller configured to be rotatable, a second impeller arranged in one of the axial direction...
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JP6570721B1 |
To provide a pump capable of suppressing a flow of a fluid toward a shaft sealing portion. A pump 1 of the present invention has a rotating shaft 11, one or more impellers 32 fixed to the rotating shaft, a suction port and a discharge po...
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JP2019143630A |
To provide a pump in which rapid abrasion is reduced.In a pump, an angle between a virtual contact surface which is a virtual contact surface P with respect to a lip 10 and passes through an axis, and a virtual straight line D which is v...
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JP6566788B2 |
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JP6566684B2 |
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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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JP2019100253A |
To provide a drainage pump which inhibits noise caused by change of pressure of drain water in a pump chamber and achieves quietness during operation.A drainage pump 1 houses a rotary impeller vane 30 in a pump chamber 25 defined by a ho...
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JP2019103363A |
To provide a drainage pump motor capable of suppressing a problem caused by press-fitting of an oil-impregnated bearing while suppressing destruction of a resin member by oil of oil-impregnated bearing and a drainage pump including the s...
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JP2019100319A |
To provide a drainage pump rotor blade that can reduce noise while effectively enhancing pumping performance, and a drainage pump comprising the drainage pump rotor blade.A rotor blade 30 of a drainage pump 1 comprises a shaft part 31, a...
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JP6476011B2 |
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JP6461243B2 |
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JP2018204518A |
To provide a pump for circulating brine with good pump efficiency.A pump 10 for circulating brine for adjusting temperature of an external device 50 is provided. The pump comprises a pump main shaft fitted with an impeller, a pump casing...
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JP6438055B2 |
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