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Patent Searching and Data


Matches 601 - 650 out of 6,696

Document Document Title
JP2013019422A
To calculate a characteristic value of a pump with high accuracy without measuring operation characteristic data of the pump in advance.A device for calculating a pump characteristic value includes: a reference operating point identifyin...  
JP2013011241A
To provide a multistage pump with improved tansporting performance.The multistage pump includes a rotating shaft 1, a plurality of impellers 2 fixed at the rotating shaft 1, and a pump casing 3 that accommodates the plurality of impeller...  
JP2013011254A
To solve the problem that water inside a pump powered by an internal combustion engine and inside a pipe on the pump side remain in situ until the pump powered by the internal combustion engine is operated and that there is the risk of r...  
JP5119078B2  
JP5114059B2  
JP5106930B2  
JP5102602B2  
JP2012246865A
To provide a pump facility of high maintainability, by managing and maintaining the pump facility from a present operation state.This pump facility 10 includes: a main pump 301 for pumping liquid; an auxiliary machine facility 303 includ...  
JP2012246826A
To provide water supply equipment that enables easy detection of failure in a backflow prevention valve, includes a plurality of sets of water supply devices each comprising a backflow prevention valve, a pump, etc., and is configured by...  
JP5094156B2  
JP5097228B2  
JP5096405B2  
JP2012531551A  
JP2012241614A
To provide a water supply device using a variable speed pump suitable for a terminal pressure constant control system without the need for concerning about an overload or overcurrent, and not requiring any special preliminary considerati...  
JP2012241567A
To issue a warning of a pump failure due to cavitation or leakage of a pump device which sucks a fluid from a suction port and discharges the fluid from a discharge port without storing the fluid in a pressure tank.The pump device includ...  
JP5083896B2  
JP5085236B2  
JP2012229699A
To provide a method for starting a water supply system that can eliminate a lack of water supply pressure caused in such a case as when flush valves for flushing toilets in facilities such as a school are used simultaneously.The water su...  
JP5075390B2  
JP2012528973A  
JP2012225255A
To provide a water supply system capable of continuing the water supply without suspending the operations of pumps even if transmission faults take place between a plurality of inverter control sections and a control section that issue s...  
JP2012219764A
To improve the reliability of a water supply device by stopping a pump even when the pressure on the discharge side of the pump is not increased due to clogging of a constant pressure valve with a foreign matter or the like.The water sup...  
JP2012219721A
To provide a fluid flowing device inhibiting the deterioration of pump efficiency and inhibiting the occurrence of a pump lock state by magnetic foreign matters.To solve the problem, in the fluid flowing device including a pump 2 for cau...  
JP2012216133A
To provide a liquid level control device and a liquid level control method capable of performing liquid level control with higher accuracy and reducing a useless adjustment.A liquid level control device 1 comprises: a container 20 where ...  
JP2012215176A
To eliminate the work for causing start timing of one submersible pump 1A to be different from that of another submersible pump 1B and to reliably perform automatic alternate operations of the two submersible pumps 1, when installing the...  
JP2012527563A  
JP2012215101A
To improve pump efficiency by reducing unnecessary energy with a simple structure and a simple control.The pump includes a rotary drive shaft 5 provided inside a pump casing 3 having a fluid suction opening on one end side and a fluid ej...  
JP5063744B2  
JP5060426B2  
JP5061621B2  
JP5061620B2  
JP2012207546A
To provide a pump power consumption characteristic model in consideration of non-linearity and multi-valued feature of power consumption characteristics with respect to a flow rate, and a change of the power consumption characteristic ac...  
JP5055517B2  
JP5058893B2  
JP2012197795A
To provide a horizontal shaft pump (a double-suction horizontal shaft pump or self-balance multistage horizontal shaft pump) which has vane wheels disposed symmetrically, makes a radial load borne by a hydrostatic bearing, and effectivel...  
JP5048918B2  
JP5049335B2  
JP5048419B2  
JP2012193585A
To provide a water distribution pressure control apparatus which is capable of highly accurately controlling terminal pressure of a water distribution pipe network.A water distribution pressure control system includes a duct resistance m...  
JP5047747B2  
JP5044105B2  
JP5044569B2  
JP2012188943A
To provide a water supply device that can detect an abnormal state of a CPU.The water supply device includes: pumps 3-1, 3-2 for supplying water; a pressure detector 8 for detecting water pressure at a discharge side of the pump to outpu...  
JP2012522929A  
JP5033460B2  
JP5028949B2  
JP5030518B2  
JP5028398B2  
JP2012177304A
To provide a configuration, by which semiconductor components inside a controller are cooled by air and the controller is manufactured at low cost.The controller 3 is arranged in the rear of a cylindrical fan cover 29 which covers a moto...  
JP5023560B2  

Matches 601 - 650 out of 6,696