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Patent Searching and Data


Matches 751 - 800 out of 6,732

Document Document Title
JP4812327B2  
JP4804171B2  
JP4804747B2  
JP2011214534A
To enhance discharge performance in low-speed rotation of a water pump and to reduce the discharge performance in high-speed rotation, and to prevent a reduction in the discharge performance by other members.An impeller in the water pump...  
JP2011214442A
To avoid a state of insufficient pressure with an inverter pump, and to save energy by eliminating operations of an extra number of secondary pumps.A secondary pump reduction function 14B by lowering an inverter output is provided in a c...  
JP4795172B2  
JP2011202525A
To prevent occurrence of failure when an operation mode is changed from a manual mode to an automatic mode.A number control part 14, when the operation mode is changed from the manual mode to the automatic mode, determines whether or not...  
JP2011202509A
To provide a high specific-speed pump in which an axial power in a small water volume area during a cutout operation or the like is reduced despite a simple structure.The axial-flow pump P includes a spindle 2 rotatably disposed in a cas...  
JP2011202524A
To always obtain target capacity without concentrating a load at a specific water suction pump.A control part 35 controls the total discharge capacity of a plurality of water suction pumps P1-P8 to the target capacity by repeatingly perf...  
JP4789333B2  
JP2011185190A
To provide an efficient control device integrated type motor pump.The control device integrated type motor pump includes a pump 1, a motor 2 driving the pump 1, a control device 3 controlling the motor 2, and a discharge side pressure me...  
JP4778994B2  
JP4772968B2  
JP2011176946A
To provide a motor device that reduces load on a switching element, and also reduces power consumption, and to provide a pump with the motor device.The motor device 1 includes, a rotor 2, a stator 3 that drives the rotor 2, the switching...  
JP4769937B2  
JP4767488B2  
JP4768133B2  
JP2011163298A
To provide a water feeding pump control device and a water feeding pump control method, which reduce leakage of tap water stored in water supply equipment when leakage occurs by a disaster in the water supply equipment and fire extinguis...  
JP2011157949A
To prevent both of delay in start of drainage and hunting operation, in a drainage pump installed to a suction water tank in which water flowing over a mount flows from the upstream.Pumps 4A-4E are installed to the suction water tank 5 i...  
JP2011157894A
To provide a method and device for predicting a cavitation erosion quantity in a fluid machine, enabling easy prediction of the cavitation erosion quantity.The method includes mounting a vibration acceleration sensor on the fluid machine...  
JP4743147B2  
JP4741312B2  
JP4732229B2  
JP4733381B2  
JP2011520061A  
JP2011137406A
To provide a status diagnosis system and method for a cargo pump, which diagnose the status of the secular change in the cargo pump without opening a cargo handling tank while monitoring the status of the cargo pump, and also provide an ...  
JP2011127460A
To provide a water supply device which prevents the occurrence of water hammer when a pump is started for the first time after the water supply device is stopped for a long period.This water supply device 1 includes: the pump P; a motor ...  
JP4706437B2  
JP4708273B2  
JP2011111982A
To provide reduction of the installation cost of a water level detecting means, reduction of installation man-hours, enhancement of operability, standardization and commonization on a plurality of water level control and functions.A wate...  
JP2011111983A
To provide a water level control system of a water supply pump system, improving problems by parameterizing respective threshold values of operation and stop of water level control and function according to the water level of a water sou...  
JP2011112277A
To perform change control of a set differential pressure and a set water supply pressure without causing problems even in a system having both an inverter pump and a constant-speed pump.A lower limit set value change function of inverter...  
JP4697471B2  
JP4699447B2  
JP4690970B2  
JP4694023B2  
JP4689794B2  
JP4685227B2  
JP2011094563A
To provide a highly reliable pump facility and an operating method, by preventing turbulence of a flow near an intake port caused by back-flow in a suction part, smoothly sucking air therein to shorten the starting time, and thereby impr...  
JP4680922B2  
JP4678798B2  
JP4678799B2  
JP4677081B2  
JP4676721B2  
JP2011080858A
To provide a full water level detector provided with a countermeasure against rusty water that can be equipped to a pump installed outdoors.In a body housing 10, an air passage and an electrode bar chamber 12 including two or more electr...  
JP4675056B2  
JP4675057B2  
JP4668403B2  
JP2011066088A
To provide a function for assuring circulation of an etchant by effectively removing the gas, generated from the etchant, from within an injection line and an injection pump, while using a pump of blade water pump type which does not cau...  
JP2011064113A
To provide an automatic pressure tank type pump that replenishes air into a pressure tank when an inching occurs.An automatic pressure tank type pump 1 includes a pump head 6, a pressure tank 10 that accumulates water pressurized by the ...  

Matches 751 - 800 out of 6,732