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Matches 751 - 800 out of 3,457

Document Document Title
JP2006234075
To provide a thrust bearing structure for a fluid compressor capable of canceling thrust force without requiring a special device, and capable of improving reliability.This structure is provided with a balance chamber 24 formed in a hous...  
JP2006233865
To provide an energy-saving lifting pump device and its operating method, for securing an optimum pump operational status, in contradictory pump specifications of high lift and low lift before and after providing siphonage.A plurality of...  
JP2006233793
To provide a liquid supply device capable of reducing vibration and noise of a pump.This liquid supply device has at least a pair of pumps constituted by pump parts 13, 14 incorporating an impeller for absorbing and discharging liquid an...  
JP2006217957
To provide a fire engine which needs only the necessary number of signal lines, does not require continuous operation of a signal generator, and quickly adjusts a rotational speed of an engine for driving a pump for discharging a fire fi...  
JP2006220022
To provide a pump capable of reducing heat generation when a motor generates heat.A current detection means 9 detecting a value of current carried to the motor 4 and a drive circuit 2 having a switching function turning on and off electr...  
JP3840620
To automatically control the second auxiliary pump by the vertical movement of a float-lifted/lowered level switch in a breeding device when an axial flow pump used therein for breeding various live fishes in a breeding tank becomes out ...  
JP2006200132
To provide a dredging device capable of efficient dredging in response to an alluvium state of a sand pocket.A plurality of dredging pumps 8 are suspended in a sedimentary sand section 3 of the sea bottom from a pier 7 arranged in a sand...  
JP2006194185
To provide a high pump head operation control method and a high pump head operation control system for a water feed system driven by a various voltage and a various frequency power source controlled by delivery pressure constant control ...  
JP2006194186
To provide a large flow rate operation control method and a large flow rate operation control system capable of performing operation with room in a capacity of a pump and solving a problem of lack of the flow rate of the pump without cha...  
JP3827911
To ensure drainage even when a pump flow passage is not fully filled with water. A pump flow passage 20 is connected to an intake water tank 10 and a horizontal pump P is installed in the passage 20, whereby water in the tank 10 is sucke...  
JP2006183496
To supply fluid without shortening the pump life and fluctuation of a delivery pressure in supplying the fluid by combining a pump for performing variable-speed operation and a pump for performing constant velocity operation.When pumps 3...  
JP2006177157
To provide an automatic water supply device capable of constructing a feed water pump with different powering characteristics by changing the operation specification of a motor for driving the pump.The automatic water supply device is pr...  
JP2006161791
To provide a water level control device for a plumbing tank capable of preventing accidents due to abnormality in a circuit inside a water level detecting device in advance.The water level control device is equipped with the water level ...  
JP2006164750
To allow a fuel cell system to release a lock in impeller freezing with less amount of heat.A hydrogen circulation pump 21 comprises a pump 51 having an impeller 69, rotation of which transfers hydrogen from a hydrogen tank and exhausted...  
JP3814635
To provide a submersible motor pump having the convenient and, highly reliable function of automatically starting and stopping and its automatic starting and stopping method. The submersible motor pump has a temperature sensor 48 to sens...  
JP3816198
To provide a power system for driving a nuclear reactor coolant recirculation pump consisting of a simplified structure by reducing the number of units of a static type variable frequency supply device ASD at ABWR. At least one of normal...  
JP2006153023
To suppress pressure fluctuation at a time of parallel operation of a plurality of pumps directly connected to a water line main pipe.A plurality of pumps sucking water from a suction pipe directly connected to the waterline main pipe an...  
JP2006153025
To establish a new pump structure increasing overall productivity while improving each function with three forms of a mechanical seal, a canned motor pump and a magnet pump taken into consideration.In a magnet driven type motor pump prov...  
JP3814331
To achieve a light-weight, compact motor pump by a pump casing with a storage chamber for storing a control unit for motor drive control in a motor pump comprising mounting the pump casing at the tip end face part of the motor casing. A ...  
JP2006125275
To provide a performance diagnosing device or system for a fluid machine, capable of easily evaluating a deterioration degree of the fluid machine.This performance diagnosing device for the fluid machine is provided with a predicted perf...  
JP2006118414
To provide a method for supplying water extending life of facility by extending pump start cycle time from completion pressure retention to pump start at a time of water leak operation.In the method for supplying water starting a pump to...  
JP3793885
To provide highly accurate estimated end pressure constant control by obtaining a flow rate signal based on a no-discharge pump head, a push-in pump head or check valve fixing loss head and performing accurate flow rate detection not aff...  
JP2006097662
To provide a control device for a supply water device, and a method for composing the control device at low cost without wasting the performance of control boards for composing a control part.This control device is for a supply water dev...  
JP2006097494
To provide an electric pump capable of increasing the straight advance force and acceleration of a fluid.Double reversely rotating vanes are rotated reverse to each other by the drive force of a driving source. Also, a forward shaftless ...  
JP3781567
To normally start/stop a rotary machine even if an abnormal operation occurs in a CPU or the supply of power to the CPU is cut off. A running controller including the starting and stopping of a rotary machine is provided with a CPU 11, v...  
JP3781546
To make a priming detector small-sized and lightweight and to prevent a malfunction by inclining the lower end or both ends of a connecting pipe which connects the lower section of a container and a pump or a pipe connected to the pump w...  
JP3781140
To reduce kinds of power units to a turbo-molecular pump body having various characteristics. In a turbo-molecular pump having a turbomolecular pump body 2 and a power unit 3 capable of transmitting/receiving a power and a signal to or f...  
JP2006070713
To provide a liquid supply device employing a magnet pump capable of supplying liquid without an overload on the magnet pump even in a small amount of discharge flow.The liquid supply device is provided with a tank 11 for reserving liqui...  
JP2006070543
To provide a stormwater drainage control system capable of carrying out operation control of a stormwater drainage pump, at the same time, automatically making the proper operation control of a private power generation facility supplying...  
JP2006070729
To provide a submersible pump effectively preventing failure and malfunction by breakage or the like and easy to know an operating water level.A mounting rod 29 vertically extending is supported through a support bracket 30 on a side of ...  
JP2006070780
To provide a pump driving method in a pump site and a pump driving device, capable of suppressing surging even when a gate is used instead of a discharge valve and an axial-flow pump is used as a pump.In this pump driving method in the p...  
JP3777490
To prevent stagnation of liquid in a discharge pipe and stop fluid flow by means of a pump itself, by arranging a screw type pump having a pump rotor which can be controlled in rotational speed in both normal and reverse directions on th...  
JP2006063842
To efficiently and promptly perform recovery operation to an operating condition before power failure after recovery of power from power failure while suppressing fluctuation of a flow rate and pressure, in a system for directly supplyin...  
JP2006063961
To easily change a throttling ratio of an orifice responding to change in operating conditions, in a turbo pump having the orifice and an inducer.A centrifugal pump 10 belonging to turbo pumps has the orifice 24 formed in a suction port ...  
JP3776162
To stably levitate a disc type impeller magnetically by applying the constitution that two radial shafts of the disc type impeller are controlled with a non-control type bearing, while the radial shafts in an axial direction being active...  
JP2006057567
To provide an inexpensive pump system with a storage tank having a sufficient capacity and a motor having a longer life without mounting a flywheel on the rotating shaft of the motor, for eliminating the event of water hammering.The pump...  
JP2006057623
To provide a direct-connection type water supply system capable of reducing installation cost and running cost of the system and being suitably used for water supply to in particular relatively low-rise and small buildings.This water sup...  
JP2006057571
To provide a water level detecting unit having compact construction for increasing heat radiating effects of a semiconductor contact which opens/closes a power supply to a pump motor, without the need for mounting a heat radiating alumin...  
JP2006057582
To provide a double suction centrifugal pump having less reduced pump efficiency by varying a flow amount with a change of a required liquid amount as keeping a pump head unchanged.The double suction centrifugal pump comprises two impell...  
JP3768045
To perform an optimal operation in a load condition by corresponding an inner condition rate of an inverter to a control condition rate of a turbo machine, memorizing the inner condition rate in the inverter as a target value, and contro...  
JP2006037819
To enable stable operation in a wide operation range from low pump head high flow rate to high pump head low flow rate by improving anti stall characteristics of a pump to be used to characteristics not easily stalling and combining fixe...  
JP3766531
To electrically detect the rotational direction of a pump using an inverter in an automatic feed water supply system whose pump is in automatic operation. This method is formed out of a first process in which after the definite period of...  
JP2006033836
To provide a hot swap circuit system of a fan module capable of reducing manufacturing costs of the system, and for making the system to be operable in a condition of large current and voltage while improving stability of the system.The ...  
JP2006029222
To provide a method of early detecting an abnormal operation due to the invasion of foreign matters, and of controlling a pump which can be used to remove the sensed foreign matters in a pump unit with the function of preventing an overl...  
JP2006029266
To provide a water feed device unit formed that a pump, a motor, and a control part are unitized in a manner to be capable of corresponding to various water feed devices, and the water feed device constituted that a piping unit, and an a...  
JP2006020846
To provide a fire pump apparatus which allows a sure and effective action under disadvantageous conditions in a disaster.The fire pump apparatus has a motorized pump 10 to convey water with pressure, a main pipe 52 attached to the discha...  
JP2006022611
To provide a pump gate which can not only forcibly drain from a low level side to a high level side but also can generate electric power by naturally flowing down water from the high level water level side to the low water level side.In ...  
JP2006022668
To provide a submerged pump capable of roughly automatic alternate operation with one kind of submerged pump.Two submerged pumps 1 are installed in a reservoir tank 21 of a submerged pump device 20. A water level sensor of each submerged...  
JP2006017025
To deliver more liquid with the same pump and reduce a remaining volume in a tank when delivering the liquid from the tank storing the liquid.The storage tank 10 is provided with a level gauge 18 for detecting a liquid level. When an eff...  
JP2006009749
To provide a pump device performing estimated terminal pressure constant control without getting into shortage of supply water quantity or shortage of supply water pressure.This pump device is provided with a pump 310, a pressure detecti...  

Matches 751 - 800 out of 3,457