Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 651 - 700 out of 7,095

Document Document Title
WO/1992/001289A1
A reactor core (104) includes upper and lower matrices of fuel bundles. Fuel rods in the upper matrix (126) have their plenums oriented upward, while fuel rods in the lower matrix (124) have their plenums oriented downward. Refueling inv...  
WO/1992/001294A1
A drive (10) for positioning a control rod (12) in a nuclear reactor is disclosed. The drive (10) includes a housing (112) having a piston disposed therein, with a piston rod extending from the piston and through the housing for being jo...  
WO/1991/019170A1
A detector for detecting flow of fluid (4) having a heater (1) operable to transfer thermal energy (6) to a body of fluid (5) with which the detector is associated and first (2) and second (3) temperature sensors each of which is operabl...  
WO/1991/016541A1
The pump (P) includes a discharge head (34) having a pair of axially spaced end walls (56, 58). A tank (12) includes a housing (52) in communication with a liquid outlet conduit and forms part of a substantially permanently stationary pi...  
WO/1991/004099A1
An anti-flooding sewage grinder pump liquid level control system in a separately mounted canister is provided for installation within and controlling operation of a sewage grinder pump installed within a sewage collection tank (11). With...  
WO/1990/015252A1
A low pressure recirculation valve for cooling a centrifugal pump. A valve casing (12) having a first chamber (14) with an inlet (18) and a recirculation port (22), and a second chamber (16) with an outlet (20). A multiple piece check va...  
WO/1990/015251A1
The present invention relates to a method and apparatus for controlling the operation of a centrifugal pump. The method and apparatus in accordance with the present invention is especially developed for eliminating or minizing the proble...  
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...  
JP2017129108A
[Subject] A pumping mode pattern control method controlled so that a pumping plant serves as energy-saving operation is provided. [Means for Solution] In a pumping mode pattern control method of the present invention, it is not because i...  
JP2017518462A
第1の態様によれば、本発明は、導管(4) を介し液体をポンプ移送するように構成され たポンプ(2)を停止操作する方法に関し、 このポンプ(2)は、停止操作される前...  
JP2017516947A
本発明は、ポンプが詰まっているときにポン プ装置を制御するための方法に関連し、ポン プ装置がポンプおよび制御ユニットを備え、 ポンプがモータを備え、制御ユニットが...  
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...  

Matches 651 - 700 out of 7,095