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Matches 601 - 650 out of 6,720

Document Document Title
JP5200157B1  
JP2013087622A
To provide a pump capable of stabilizing axial self-oscillation while balancing axial thrust by a simple structure and capable of reducing a leaking flow rate of a slit.The pump includes: a shaft on which an impeller and a pressure sleev...  
JP5193896B2  
JP5193317B2  
JP2013072347A
To prevent an operation deviating from an upper or lower limit input/output range and an operation deviating from a proper rotational speed and a proper guide vane opening, by accurately calculating a simulated total pump head or simulat...  
JP5184416B2  
JP5182479B2  
JP5184417B2  
JP5171419B2  
JP5172245B2  
JP5171429B2  
JP5171013B2  
JP2013050023A
To provide a booster water supply system for determining the performance of a booster pump in a booster water supply part with respect to each of a low-rise zone, a medium-rise zone and a high-rise zone.The booster water supply system in...  
JP2013047499A
To perform pump output regulation simply according to pipe resistance when the pipe resistance is given.A pump device is provided in the middle of a circulation path having predetermined pipe resistance to circulate fluid. The pump devic...  
JP5155709B2  
JP5159187B2  
JP2013040563A
To provide a pump drive control device configured to precisely detect the presence of water using a circulation pump of DC drive.This pump drive control device comprises: a circulation pump 14 of DC drive for circulating hot water; and a...  
JP2013040593A
To provide a pump system for a cold and hot water circulating and supplying system of using a variable speed pump suitable for automatically generating a parameter and an operation expression required for pump operation control and end p...  
JP2013040596A
To provide a pump system in which a plurality of pumps can be driven impartially with a simple constitution.An air vent valve 26 is connected to a suitable portion of a lifting pipe 15 of each of a plurality of pump units 11 and an advan...  
JP5154866B2  
JP5147748B2  
JP5149827B2  
JP5137359B2  
JP5138505B2  
JP2013024073A
To provide a water treatment system in which it is not necessary to install a measurement tank or an electromagnetic flowmeter, entire system costs can be reduced, water can be sent from a flow rate adjusting tank to a treatment tank wit...  
JP2013024151A
To provide a submersible pump control unit, which is capable of reducing costs required for update facilities by effectively utilizing existing control panel facilities, even if installed outdoors under large effects of temperature/humid...  
JP2013027184A
To provide a space-saving pump unit which can perform variable speed operation control by the single pump unit while securely releasing heat.In a pump unit, a pump portion installed in a pump casing and having an impeller and a rotating ...  
JP2013019420A
To calculate shaft power and consumption power required when a pump is operated at an optional operating point based on a pump characteristic value indicating the optional operating point.A reference flow rate calculation part 16A calcul...  
JP2013019421A
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...  
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...  

Matches 601 - 650 out of 6,720