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Patent Searching and Data


Matches 751 - 800 out of 7,173

Document Document Title
JP2017048796A
[Subject] When an abnormal value is detected during operation, it is carrying out [not stopping as failure] degradation and performing continuation of operation preferentially, and avoid suspension of water supply if possible. [Means for...  
JPWO2015059800A1
With a boiler feeding device using a plurality of pumps driven with an electric motor by which rate control is carried out with the conventional inverter, If a load current value of a pump under operation is beyond an amperage rating val...  
JP2017048794A
[Subject] When an abnormal value is detected during operation, it is carrying out [not stopping as failure] degradation and performing continuation of operation preferentially, and avoid suspension of water supply if possible. [Means for...  
JP6089423B2  
JP2017044158A
[Subject] Even if the length of wiring which supplies voltage is changed into an electric motor from an inverter, a pump is made to operate appropriately, while holding down cost. [Means for Solution] Pump system 100 is provided with ele...  
JPWO2015029147A1
A pump part which has the impeller provided in a pump casing, and a synchronous motor which rotates the impeller, It is a pump system which has an inverter which controls the synchronous motor, and is the inverter, A signal input part wh...  
JPWO2015037669A1
The present invention is concerned with the turbine pump which acts on a fluid, and relates to the device and method of controlling or easing the cavitation serge which is a characteristic phenomenon which occurs in the turbine pump for ...  
JP6088302B2  
JP2017040211A
[Subject] The unstable characteristic which a shuttlecock produces in turbo machinery which has convex shape outside in vertical section for high loss fluid is improved effectively. [Means for Solution] It is provided in casing 2 and a c...  
JP2017040171A
[Subject] A bite lump of a solid to clearance between a shuttlecock and a casing is more certainly controlled by a simple equipment configuration. [Means for Solution] It is provided in a casing and a casing and an adjustable vane pump p...  
JP2017036669A
To reduce burden on a worker engaging in inspection, and improve accuracy of detecting abnormality or misdetection of measuring instruments.A control device is used in a pump station that has a plurality of pumps provided in parallel and...  
JP6082772B2  
JP2017031948A
To suppress the generation of a vortex with a simple structure, in a vertical shaft pump or a horizontal shaft pump.A vortex suppressing device for suppressing the generation of a vortex around a vertical shaft pump or a horizontal shaft...  
JP2017031966A
To provide a multi-stage pump capable of preventing a rotary member from colliding with a stationary member, when rapid pressure fluctuation occurs at the starting of the multi-stage pump.A multi-stage pump is equipped with a rotary shaf...  
JP2017031902A
To provide a water supply system which can rapidly detect leakage of corrosive fluid in a pressure tank.A water supply system includes a corrosion-resistant pump 1, a pressure tank 3 connected to a discharge pipe 2, and a leakage detecto...  
JP2017031900A
To provide a relatively inexpensive and reliable water supply system applicable to corrosive fluid such as sea water or hot spring water.A water supply system includes a corrosion-resistant pump 1 for transferring fluid, a pressure tank ...  
JP2017031883A
To enable performing optimum pump rotation speed control according to water amount without using mechanical flow rate detection means in a pump device.A pump device includes: a pump; an electric motor for driving the pump; an inverter wh...  
JP2017031901A
To provide a water supply system which can be continuously operated even when abnormality occurs in a pressure tank.A water supply system includes a pump 1 for transferring fluid, a discharge pipe 2 connected to a discharge port of the p...  
JP2017025858A
[Subject] An electric submersible pump which can perform maintenance management easily is provided. [Means for Solution] Pump room 4 where impeller 3 which drives this electric submersible pump 100 by motor 1 and motor 1 is arranged, Oil...  
JP2017025855A
[Subject] In a Vertical axis pump or a horizontal-axis pump, a whirlpool is suitably controlled also in an operation situation of a pump, and transient state of circumference environment. [Means for Solution] Whirlpool control device 40 ...  
JP2017025859A
[Subject] An electric submersible pump which can perform maintenance management easily is provided. [Means for Solution] This electric submersible pump 100 is provided with the following. Motor 1, Pump room 4 where impeller 3 driven by m...  
JP2017025738A
[Subject] An operating method of a boiler feeding device and a boiler feeding device which can discharge air mixed in water with simple composition is provided. [Means for Solution] A boiler feeding device of a direct connection water su...  
JP6072211B1
[Subject] When the flow rate sensor of a paddle type is used, suppress pressure loss as much as possible. [Means for Solution] A self-priming chamber provided in the discharge mouth side of a whirlpool pump driven with a drive motor, A v...  
JP6073141B2  
JP2017020849A
To provide, as one objective, a vortex detector capable of detecting an occurrence state of a suction vortex of a pump in an actual pump machine field, even when the suction vortex is an underwater vortex occurring in a water having a hi...  
JP2017020396A
To provide a thermal energy recovery device which is stably operated using a pump having a mechanical seal part, and to provide a pump replacement method of the thermal energy recovery device.An energy recovery device comprises an evapor...  
JP2017013858A
[Subject] A fuel automatic supply system which enabled it to ensure supply of fuel from a refueling tank to a fuel acceptance tank is obtained. [Means for Solution] Refueling part 4 provided with conveyance-of-oil pump 2 which attracts a...  
JP2017014931A
[Subject] A fuel pump which reduces wear of an impeller by collision with a shaft to rotate is provided. [Means for Solution] Fuel pump 1, A plurality of winding 23Fuel inhaled from admission port 151 when it was provided in rotor 24, ro...  
JP2017500903A
[Subject] The method and device which check whether operation of an impeller pump is supervised and there is any obstacle are provided. [Means for Solution] A solid borne sound which occurs in an impeller pump is measured, and measured v...  
JP2016223337A
[Subject] A cavitation which occurs with suction environment or a pump discharge is controlled, and a pump which prevents improvement in pumping performance, reduction of noise or vibration, and corrosion is provided. [Means for Solution...  
JP6055190B2  
JP2016217157A
[Subject] A water hammer phenomenon at the time of a control member which controls the amount of sending of fluid reaching an inside of pump housing is controlled. [Means for Solution] Control member 20 which has tubed part 21 arranged a...  
JP2016217073A
[Subject] A plurality of devices enable it to acquire information about a boiler feeding device from a remote place. [Means for Solution] Boiler feeding device 100 is a device for supplying a fluid. Boiler feeding device 100 is provided ...  
JP2016217259A
[Subject] It makes it possible to change returning-water capability suitably according to a flow needed. [Means for Solution] Two or more sets of hydraulic submerged pumps 1, and common hydraulic pump 2 for driving these hydraulic submer...  
JP2016540152A
The present invention relates to the mechanism in which the axial thrust of fluid flow machinery is compensated. The load relief element (11) is connected so that it may not rotate at a shaft (1). A flow iris diaphragm gap (13) is formed...  
JP2016217267A
[Subject] A control method of a pump unit and a pump unit that proper control processing is realizable is provided. [Means for Solution] Pressure sensor 14 by which pump unit 1 concerning one embodiment can detect discharge pressure by t...  
JP2016217156A
[Subject] A fluid pressure pump which enables regulation of the amount of discharge of fluid consists of simple composition, controlling enlargement. [Means for Solution] It has operation control mechanism C which operates control member...  
JP2016217195A
[Subject] In presumed terminal pressure constant control, optimal target preassure force control curve according to an operation situation is determined automatically. [Means for Solution] A pumping plant is provided with a pump which tr...  
JP2016211561A
[Subject] A pump is provided. [Means for Solution] Pump housing (2) which the present invention equipped with an inhalation opening (3) and a discharge opening (4), It is related with a pump (1, 100) which has an impeller (5) which is ar...  
JP6042746B2  
JP2016205311A
[Subject] Provide a control method of a boiler feeding device which can adjust a precise stop flow, and a boiler feeding device. [Means for Solution] Impeller 53b which boiler feeding device 1 rotates by pump 61 and a flow of water, Flow...  
JP2016201072A
[Subject] A boiler feeding device which energy-saving operation is possible and can prevent a fall of detecting accuracy of a flow is provided. [Means for Solution] Connecting tubule member 30 which a boiler feeding device equips with ch...  
JP2016200049A
[Subject] Constitute from an easy circuit, are strong in both noises from the outside, and raise sensitivity. [Means for Solution] A starting water level detection sensor attached to the higher rank side of a submerged pump, and a stoppi...  
JP6035382B1
[Subject] A fuel automatic supply system which enabled it to ensure supply of fuel from a refueling tank to a fuel acceptance tank is obtained. [Means for Solution] Refueling part 4 provided with conveyance-of-oil pump 2 which attracts a...  
JP6030384B2  
JP2016194287A
[Subject] A simple pump controlling method which can perform tendency management without pulling up a pump without being able to grasp damage and degradation of a part by securing the same reproducible conditions and choosing time preser...  
JP6027326B2  
JP2016188637A
[Subject] A monitor method of a pumping plant which can acquire information for managing operational status irrespective of shape of a pump, and a pumping plant is provided. [Means for Solution] A pumping plant is a pumping plant which i...  
JP2016188618A
[Subject] A centrifugal type pumping plant with which stability at the time of surfacing rotation of an impeller was improved is provided. [Means for Solution] At least 1 side of the 1st actuator (coil 20) and the 2nd actuator (coil 20D)...  
JP2016188617A
[Subject] A centrifugal type pumping plant with which stability at the time of surfacing rotation of an impeller was improved is provided. [Means for Solution] An actuator which drives impeller 10 maintains a position of impeller 10 in t...  

Matches 751 - 800 out of 7,173