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Matches 651 - 700 out of 7,076

Document Document Title
WO/1990/013460A1
A double-acting pump has two outlet channels (47, 48), which can be selectively charged with liquid in function of the direction of rotation, and two movable sealing membranes (36, 37) each of which is associated with an outlet channel (...  
WO/1988/007126A1
A drive assembly brake (80) is mounted in the gearbox (22) connecting a motor driven input shaft (24) to an output shaft (26), the output shaft being connected by a tubing string (10) to a submersed rotary pump. The gearbox includes an o...  
WO/1988/002831A1
Automatic recirculation valve for use in installations where a minimum flow is required for protecting such as centrifugal pumps. The valve includes a valve housing (13) with a plunger (12) controlled by a main flow and a spring (2). The...  
WO/1986/001861A1
Closed piping systems for liquids require pressure maintaining arrangements to define the level of pressure in the piping system in relation to the surrounding atmosphere. Various values of heights of delivery along the piping system are...  
WO/1985/001087A1
In a float switch, which is provided particularly for immersion pump systems with an electric motor connectable and disconnectable as a function of the level and with a pump coupled thereto and immersed into the liquid to be discharged a...  
WO/1983/004286A1
The method is applied to a turbomachine, particularly to a pump, and to a support for a pressure sensor of a gaseous or liquid fluid, particularly an electronic pressure pick-off. The pressure or differential pressure of the fluid (3) co...  
WO/1983/003461A1
A device allows to reduce the power used by the motor of a circulation pump actuated by an electric motor for heating installations. The reduction is obtained by interrupting periodically the network power supply by means of an electroni...  
JPWO2016030975A1
給水装置において、タイマユニットを用いず に給水装置の時刻管理を行うことを可能とす る。複数のポンプと、前記複数のポンプをそ れぞれ回転駆動する複数の電動機と、前...  
JP6100912B2  
JP6096443B2  
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
従来の、インバータにより速度制御される電 動機によって駆動する複数のポンプを用いた 給水装置では、ポンプ1台では供給できない 大流量の給水要求があった場合、運転中...  
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
ポンプケーシング内に設けられた羽根車を有 するポンプ部と、前記羽根車を回転駆動する 同期電動機と、前記同期電動機を制御するイ ンバータと、を有するポンプシステムで...  
JPWO2015037669A1
本発明は、液体に作用するターボポンプにか かわり、液体を対象としたターボポンプに発 生する特有の現象であるキャビテーションサ ージを抑制または緩和する装置及び方法...  
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
【課題】インペラポンプの動作を監視して障 害がないかを確認する方法および装置を提供 する。【解決手段】インペラポンプ内に発生 する固体伝播音を測定し、この固体伝播...  
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
本発明は、流体フロー機械の軸推力を補償す る機構に関する。荷重緩和要素(11)は、 シャフト(1)に回転しないように接続され ている。流量絞り間隙(13)は、ハウ...  
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  

Matches 651 - 700 out of 7,076