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JP6882349B2 |
A centrifugal fluid pump with a fully magnetically suspended rotor to improve blood compatibility when pumping blood is disclosed. The pump stabilizes radial displacements of a disc-like rotor with active control through separate electri...
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JP6875897B2 |
To provide a self-suction operation detection system that can promptly detect completion of self-suction operation.A self-suction operation detection system includes: an input part 25 for receiving a measured value of a pressure measurem...
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JP6875841B2 |
To provide a pump equipment which prevents liquid from leaving in a water bath for a long time by arranging and effectively operating a plurality of motor pumps in a water bath, a motor pump, a control device and a malodor preventing typ...
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JP6867760B2 |
To secure a sufficient pressure just after starting water supply while giving consideration to protection of a water supply device, noise, the device service life, stability of water supply, or power consumption reduction.A water supply ...
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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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JP6857081B2 |
To detect a vortex occurring in a suction sump with high accuracy.A pump monitoring device 30 monitors a pump 10 including a pump casing 12 and a rotary shaft 22 which is disposed penetrating through the pump casing 12. The pump monitori...
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JP2021055674A |
To provide a water supply device capable of keeping discharge pressure within a proper range during an increase or a decrease in the number of devices, and a method for controlling a water supply device.According to an embodiment, a wate...
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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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JP2021049235A |
To provide a water-supply fire-extinguishing system, a fire-extinguishing method and a program which can achieve fire-extinguishing performance suitable for the site, even with limited installation space.A water-supply fire-extinguishing...
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JP6852982B2 |
To provide water supply equipment and a control method enabling transmission of versatile display information to an external indicator.In a nonvolatile memory of water supply equipment, equipment information including at least one of the...
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JP6850148B2 |
To cool a motor which generates heat in a vertical pump.A vertical pump includes: a pump casing 3 having a sub passage pipe part 4a provided with a first flange 13 defining an opening 4 above a suction port 1; a main shaft 5 extending wi...
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JP6846021B2 |
[Problem] To provide a fluid transfer system with which it is possible to suppress a deterioration in efficiency. [Solution] A pump system 1 comprises: a pump 3 for transferring a fluid; a motor 4 which is provided with a plurality of wi...
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JP6845648B2 |
To propose a feed water supply system capable of corresponding to both of a direct connection feed water system and a water reservoir system, and achieving both prevention of malfunction and convenience for a user.A feed water supply sys...
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JP2021042822A |
To provide a magnetic bearing device which can suppress heat generation while securing support rigidity in a low-load region.A magnetic bearing device 130 supports a rotating shaft 124 in a non-contact manner. The magnetic bearing device...
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JP6839041B2 |
To ensure efficient operation even under circumstances where the inflow amount cannot be reliably predicted in a simple configuration.A pump facility part 10 having a plurality of pump devices which are activated by supplying air by a va...
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JP2021032167A |
To provide a pump system that can accurately detect a water level.A pump system PS includes a pump device P and a water level detector 300. The water level detector 300 includes: at least two RFID tags including 301A, 301B; and a reader/...
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JP2021032193A |
To provide an improved pump device capable of attaining high pump efficiency and energy saving.A pump device comprises a pump 1 having an impeller 5, an electric motor 7 for rotating the impeller 5, and an inverter 10 for driving electri...
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JP6833589B2 |
To provide a submerged pump device capable of operating two submerged pumps alternately/in parallel even without using a float switch.A submerged pump device comprises: a submerged motor 11 including a motor frame 41 consisting of a meta...
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JP2021025467A |
To provide a structure for a pump driving motor in a home electric well pump device that allows for continuous water supply without stopping a pump device even when a failure occurs in the pump driving motor.A pump driving motor is provi...
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JP3230667U |
To provide an automatic water supply pump for automatically stopping water supply by a pump when a predetermined water level is reached. A pump main body 6 having a built-in motor, a control device 10 having a pair of electrode terminals...
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JP6828072B2 |
To provide water supply equipment in which breakage of a sliding member due to rapid cooling can be prevented, the sliding member being used in a pump device and supporting rotation of a main shaft and an impeller and being increased in ...
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JP2021008855A |
To provide a pump device which can shorten a stop time of a submerged pump more than before at the occurrence of an abnormal operation state.A pump device including an impeller and a motor which is constituted so as to drive a rotating s...
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JP6823120B1 |
To provide a water supply device and a control method of a water supply device capable of maintaining a discharge pressure at an appropriate range when the number of units is increased or decreased. The water supply device according to t...
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JP6814550B2 |
To provide water supply equipment and a control method capable of preventing malfunction of the water supply equipment due to a change of set information made by an external indicator and of preventing an unintended change of the set inf...
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JP2020203619A |
To provide a pump freezing prevention system for an earth removal device of a vehicle that can prevent a pump from being frozen to break by automatically draining the pump under certain conditions according to a fall in ambient temperatu...
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JP6805299B1 |
To provide a water supply device and a control method of a water supply device capable of quickly and surely detecting an abnormality of a pressure sensor and shifting to automatic operation by a normal pressure sensor. The water supply ...
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JP6805065B2 |
To provide a submersible pump that further effectively cools an electric motor in a submersible pump to enable a long term operation in air at a low-water level which brings the pump into a heat-up state.A submersible pump includes: an i...
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JP6797368B2 |
To provide an operation control system and operation control method for a horizontal mixed flow pump, capable of dropping water from a halted horizontal mixed flow pump without using a vacuum breaker valve, to automatically drop residual...
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JP6795328B2 |
To provide malodor prevention type drainage equipment that can suppress putrefaction by decreasing a residual quantity of waste water when drainage operation of a pump is over and that can be easily installed and prevent malodor.A malodo...
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JP6793484B2 |
To provide a pump device that can start a pump without causing a decrease in a discharge pressure.A pump device comprises: a pump 2; an electric motor 3 for driving the pump 2; a pressure sensor 13 for measuring a discharge side pressure...
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JP6794234B2 |
To provide an electrically-driven pump system capable of changing-over an operation of the electrically-driven pump between an automatic operation and a manual operation that enables discharging water to be carried out appropriately even...
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JP6772316B2 |
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JP6767273B2 |
To provide a pump observation system capable of observing an inside of a pump, and to provide a pump observation method.A pump observation method includes: floating an imaging device on water inside a water pumping pipe of a pump to be o...
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JP2020165344A |
To detect a position of a rotor with respect to a bearing with high accuracy.A pump comprises: a pump body including a casing and a rotor which is disposed inside of the casing and to which an impeller is fixed; and a bearing device whic...
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JP6766204B2 |
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JP2020159244A |
To provide a water supply device capable of continuing the supply of water even when abnormality occurs in a water level gage.The water supply device having a pump is provided for supplying transportation liquid to a water supply destina...
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JP2020159276A |
To provide a fluid pump controller capable of defrosting a fluid pump early.In a controller of an air pump 12 comprising a motor 21, when it is determined that the air pump 12 is frozen, switching energization defrosting control of defro...
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JP2020159916A |
To provide a pump soundness evaluation device allowing for improvement of correctness of a residual life prediction of pump facility.The pump soundness evaluation device comprises: a storage unit storing first and second management refer...
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JP6763797B2 |
A binary cycle power generation system includes a working fluid circulation line, an evaporator, an expander, an energy recovery apparatus, a condenser, and a pump. The pump includes a casing, a rotary shaft, and impellers. The casing is...
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JP6760769B2 |
To suppress energy loss or a decline in efficiency due to existing relief piping while maintaining effect of relief piping.A pump unit includes: a pump; relief piping connected to the pump; a relief valve installed to the relief piping; ...
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JP6760723B2 |
To provide a feed water system capable of preventing complete shutting off of water without requiring additional equipment.One embodiment of this invention relates to a feed water system. The feed water system includes a pump for transfe...
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JP6759394B2 |
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JP6759392B2 |
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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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JP6750058B1 |
To provide a water supply device capable of reliably performing a backup operation when a pressure detector fails. A water supply device 1 includes an inverter 51 for driving a pump device 11, a plurality of first flow rate detectors 19 ...
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JP2020133579A |
To provide an impeller capable of preventing noise due to Karman vortex.An impeller 10 includes a plurality of impeller blades 12 arranged side by side in a rotation direction R. A linear member 13 is attached to a rear edge of at least ...
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JP2020133566A |
To provide a pump device which can reduce a possibility of deterioration of usability at low costs.A pump device has an impeller which is rotationally driven by an electric motor and a casing located so as to cover an outer periphery of ...
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JP6741819B2 |
A turbo pump acts on a liquid, and an apparatus and a method suppresses or alleviates a cavitation surge which is a unique phenomenon occurring in a turbo pump for a liquid. A method of operating a turbo pump while suppressing cavitation...
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JP2020122384A |
To provide a drainage channel monitoring system and drainage channel monitoring method, and drainage channel monitoring program, capable of preventing collapse and overflow of a drainage channel by controlling drainage volumes of a plura...
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JP6739875B2 |
To provide an electric pump system which can install a control unit on a wall surface without damaging the wall surface.An electric pump system 100 includes underwater electric pumps 3a and 3b, a control board 6 which controls the operat...
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