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JP6634269B2 |
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JP6634361B2 |
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JP2020007909A |
To solve such a problem that a conventional control method of a pump has a risk of erroneously detecting clogging of foreign matters in the pump since the control method does not discriminate between reduction of the number of revolution...
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JP6630704B2 |
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JP6621349B2 |
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JP6617183B2 |
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JP6612110B2 |
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JP6607687B2 |
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JP6607693B2 |
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JPWO2018123452A1 |
The present invention relates to a pump device. The pump device includes an impeller (1) in which a permanent magnet (5) is embedded, a pump casing (2) that houses the impeller (1), and a motor stator (6) having a plurality of stator coi...
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JP2019190966A |
To make the supplied flow rate of cooling water stable without using an AC power source.The present invention includes: pumps 32, 35, an 38 for sending cooling water to a supply target unit; motors 33, 36, and 39 for operating the pumps ...
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JP2019190337A |
To provide a water supply device having excellent heat dissipation performance.A water supply device according to an embodiment comprises: a plurality of pump devices arranged in a first area of a housing part formed in a housing; a cont...
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JP6591391B2 |
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JP6592231B2 |
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JP6592082B2 |
A water supply apparatus for the supply of water to a machine tool, including a water pump, a water accumulator device, a suction line, a supply line and a valve device reversibly adjustable into a first and a second position. The water ...
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JP6590696B2 |
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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JP2019173579A |
To provide a pump system capable of easily deciding the kind of fault.A pump system 2 comprises: a centrifugal pump 4; a current detection part 9 for detecting the current of an electric motor 7 for driving the centrifugal pump 4; a firs...
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JP6586772B2 |
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JP6584665B2 |
A method for controlling a coolant pump for an engine includes delivering a coolant via a coolant pump impeller into a delivery duct to a pump outlet, and adjusting the delivery based on a position of an adjustable control slide which co...
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JP6582538B2 |
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JP2019157772A |
To provide a turbomachine appliance and an operational method of the turbomachine appliance capable of reducing the load applied to the management operation.A turbomachine appliance having a control device 60 that comprises: a communicat...
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JP6573878B2 |
The invention relates to a method of monitoring an impeller pump used in a medical application, wherein the structure-borne noise arising in the impeller pump is measured and this measured structure-borne noise is compared with a referen...
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JP6569580B2 |
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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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JP6568961B2 |
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JP6569029B1 |
To provide an underground water tank for temporarily storing water overflowing from a gutter. The underground water storage tank 20 is installed in the basement of a building or the like for storing water overflowing from a side ditch, a...
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JP6563319B2 |
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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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JP2019120146A |
To provide an electric motor assembly that can identify abnormal vibration of a component.An electric motor assembly 100 comprises a motor 3, an inverter 22 that is variable speed means for the motor 3, and a control device 23 for contro...
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JP2019120195A |
To provide a pump system and its control method.A pump system and its control method of this invention are constituted by a centrifugal pump, an inlet pressure gauge, an outlet valve and a control device. The centrifugal pump is used for...
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JP2019120145A |
To provide a pump device capable of accurately determining occurrence of abnormal vibration.A pump device 200 comprises: a pump 50; an electric motor 3 configured to drive the pump 50; an inverter 22 as variable speed means of the electr...
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JP2019120158A |
To provide a pump device that can cope with handled liquid having a relatively high temperature without upsizing the device.A pump device comprises a tank in which handled liquid having an insulation property is stored, and a pump instal...
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JP6534546B2 |
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JP6535269B2 |
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JP6528021B2 |
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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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JP6522816B1 |
To provide a water supply device capable of detecting a water level with a simple configuration. A water supply device 1 has a pump device 73 having a pump whose suction port is connected to a water receiving tank 40 and driven by a moto...
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JP2019079688A |
To provide a float switch and a pump device, in which wiring of electric wires for a plurality of water level detection units arranged at the inside of a float and wiring work for the electric wires can be simplified.A float switch 3 inc...
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JP6518714B2 |
To provide a space-saving pump unit enabling a variable speed operation control to be carried out by a single pump unit while performing a positive heat radiation.This invention relates to a pump unit in which a pump part arranged in a p...
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JP6513781B1 |
To improve cooling performance by making it possible to form an air flow inside a cabinet while reducing the size of the cabinet when a plurality of drive motors and a pressure tank are housed inside the cabinet. A pressure tank 30 is ar...
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JP6510890B2 |
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JP6504247B2 |
This horizontal shaft submersible pump includes: a casing having a suction port and a discharge port; an impeller supported in the casing; a suction cover connected to the suction port; a first suction opening which is provided in the su...
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JP6502972B2 |
To elongate operating time by using electric power supplied from a power storage device.A water feeding device 300 includes: a motor pump 310 for transferring water; a power section 320 for supplying first electric power supplied from a ...
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JP6490416B2 |
The invention relates to a control method for minimizing the electrical energy consumed during a process of filling or draining a tank (R), said process of filling or draining the tank being implemented using a pumping equipment item (EP...
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JP6488174B2 |
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JP6485893B1 |
To provide an emergency water supply system capable of stably continuing to use water in a water tank even if a normally used water supply pump is stopped in a building provided with a water supply system having a water tank. .. In order...
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JP6481712B2 |
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JP6476951B2 |
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JP2019031926A |
To provide a pump unit having a function for setting a time by a start of an operation of the unit and a time for performing the operation, starting the operation after the lapse of the set time, and performing the operation for only the...
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JP6474332B2 |
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