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Patent Searching and Data


Matches 751 - 800 out of 6,796

Document Document Title
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  
JP2012172565A
To improve pump efficiency by lengthening effective lengths of blades of an impeller, and attract a bearing by magnetic attractive force to prevent reflux from suction to discharge.In a pump 110, a liquid sucking direction X and a liquid...  
JP5017665B2  
JP5014093B2  
JP5004905B2  
JP5007577B2  
JP5004498B2  
JP5005052B2  
JP5005304B2  
JP5007434B2  
JP2012154186A
To provide a bypass energy recovery device of a fluid machine that can improve the total efficiency of the machine by effectively utilizing a pressure-loss amount of fluid energy in a pressure-loss mechanism.In a multistage centrifugal p...  
JP2012154286A
To provide a water supply device capable of easily setting a parameter required for performing end pressure constant control.A target pressure setting means of the water supply device operates an electric motor at a variable speed by a v...  
JP2012149529A
To provide a drainage pump for an air conditioner, achieving a smaller occupied space in the air conditioner by eliminating the need to externally mount a sensor, etc. for detecting a drainage water level.A motor part 10 is supported by ...  
JP2012149649A
To improve stall-resistant characteristics of a pump to be used, to provide the pump with characteristics more resistant to stall, and to combine constant shaft power with rotation speed to enable stable operation over a wider operation ...  
JP2012144976A
To provide an abnormality detection method of a pressure tank which can accurately detect the abnormality of the pressure tank such as decrease in the charged pressure, and a water supply device with an abnormality detection function for...  
JP4981870B2  
JP4982294B2  
JP4972984B2  
JP4974946B2  
JP2012127360A
To provide a pump installation having improved reliability, safety and economic efficiency by shortening the time for stating a horizontal shaft pump to allow quick start of draining operation.The pump installation 1 including the horizo...  
JP2012514709A  
JP4964308B2  
JP4961276B2  
JP2012117371A
To provide a pump device that can detect the rotational direction of a pump without depending on visual confirmation, and can rotate the pump in a positive direction.The pump device comprises the pump P, a motor M, an inverter 12, and a ...  
JP2012112363A
To provide a water supply device capable of stabilizing a water supply pressure when renewing a target pressure of terminal pressure constant control (or discharge pressure constant control).In the water supply device including a pump co...  
JP4950222B2  
JP4944837B2  
JP2012101136A
To provide a fire pump system which can steadily and effectively work under unfavorable conditions when a disaster occurs.The fire pump system includes a motor-driven pump 10 for feeding water, a plurality of discharging means 50 mounted...  
JP4938304B2  
JP2012087688A
To provide a pump control device, which is capable of reducing a variation rate of an actual flow rate with respect to a target flow rate of a pump device during a low flow rate, while a control of the pump device is simplified.A pump co...  
JP2012082688A
To achieve a high pumping efficiency in a wide flow rate range.A drive control device of an electric pump includes a pump for supplying a dynamic pressure to a fluid by rotating an impeller, and a motor serving as a rotation drive source...  
JP4922348B2  
JP2012077684A
To provide a highly reliable pump apparatus having a simple apparatus constitution and capable of reliably executing the start and the continuous operation of a pump without stopping a prime mover to a large fluctuation of the water suct...  
JP2012077701A
To automatically measure pump characteristics without stopping operation of a water treatment plant facility.A control device 10 monitors whether a pumping amount q and an average rotation speed n of suction pumps P1-PN are within prescr...  
JP2012072697A
To provide a centrifugal pump unit capable of generating sufficient negative pressure in a case.In this centrifugal pump unit 10, a delivery nozzle 45 is arranged in an upper part 38 of the case 33, an impeller 23 is rotatably arranged i...  
JP4905305B2  
JP4901574B2  
JP2012052440A
To achieve prevention or mitigation of a surging phenomenon of a suction water tank and reduction of a load of power supply equipment, while equalizing a discharge operation time of each pump, without increasing the scale of a pump stati...  
JP4879526B2  
JP2012026376A
To provide an overheating protection system of a pump that has a thin pipe diameter and a short bypass pipe, and that prevents a temperature of liquid from increasing at low cost and effectively.The overheating protection system 20 of th...  
JP4873328B2  
JP4874048B2  
JP4865394B2  
JP4854478B2  
JP4849932B2  
JP4851774B2  
JP2012002231A
To provide a system and method of determining a centrifugal turbomachinery remaining life.A centrifugal turbomachine 10 includes an impeller 16 and a speed sensor 22 arranged to detect a speed associated with an impeller speed. The speed...  
JP2012002197A
To provide an automatic operation device of a non-automatic operation type electric pump capable of immediately responding to a liquid level, by an automatic operation device of a non-automatic operation type electric pump which eliminat...  
JP2011256769A
To provide horizontal shaft pump equipment capable of suppressing starting current of an electric motor serving as a driving machine, completing a water filling process in a short time, and allowing a draining operation at an early stage...  

Matches 751 - 800 out of 6,796