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Matches 551 - 600 out of 6,790

Document Document Title
JP2015031273A
【課題】吸水管路に静電容量センサーを取り 付けた場合に消防車の運用上、水槽や池や河 川など様々な水源からの水を使用するため、 水位スイッチの取り付け位置(高さ)や...  
JP2015025367A
【課題】ヘッドカバー内というモータの発熱 の影響を受けやすく、かつ限られた空間内に 制御回路等を構成する部品が配置された場合 であっても、制御回路の放熱性に優れた...  
JP2015025427A
【課題】ポンプ始動頻度の過多を抑制しなが らも、省エネルギーを達成することが可能な 給水装置を提供する。【解決手段】給水装置 は、ポンプ2の運転を制御する制御部4...  
JP2015025353A
【課題】雨水排水ポンプを好適に制御するこ と。【解決手段】実施形態の雨水排水ポンプ 制御装置は、水位設定部と、ポンプ制御部と を持つ。水位設定部は、複数種類の流域...  
JP2015010479A
To provide a pump which can suppresses an increase of a lift at shutoff time.A pump comprises: an outer cylinder casing in which an internal passage 8 reaching a discharge port 18 from a suction port 17 is formed; an impeller which is ac...  
JP2015012738A
To achieve energy saving of power generation energy for electrical apparatuses in a ship, including an electric motor for driving a pump or the like.A ship includes electric motors 14a-14d for driving pumps 11a-11d. The electric motors 1...  
JP5638502B2  
JP2014222042A
To provide a well pump device that allows a control pressure value to be checked during operation.When control pressure information is changed, display means displays the control pressure information together with a status of the well pu...  
JP2014222038A
To restrict occurrence of hunting of a liquid level and make an average cumulative operation time of a plurality of pumps in pump equipment for discharging liquid under application of a plurality of prior standby type pumps.Pump equipmen...  
JP5629614B2  
JP5631236B2  
JP2014214743A
To provide a pump device capable of automatically determining an optimal target pressure control curve according to an operation condition.A pump device comprises: a pump 2; a motor 3 for driving the pump 2; a driving device 20 for speed...  
JP2014214715A
To provide a pump device capable of automatically determining an optimal target pressure control curve according to an operation condition.A pump device comprises: a pump 2; a motor 3 for driving the pump 2; a driving device 20 for speed...  
JP2014206122A
To provide a pump device capable of detecting a liquid leakage exceeding a predetermined amount and occurring through a mechanical seal during normal time and also detecting a liquid leakage occurring due to failure of the mechanical sea...  
JP2014202144A
To provide a diagnostic method for centrifugal pump capable of recognizing a cause of reducing performance even if the pump is disassembled and capable of estimating a proper parts replacing time.In a centrifugal pump having wear compone...  
JP5612450B2  
JP5613520B2  
JP2014196709A
To improve it with a simple configuration that a self-priming pump performs a self-priming operation under judgment on its reliability.An operation device (invertor 30) for a self-priming pump of this invention comprises a current sensor...  
JP2014194188A
To provide a pump unit capable of properly responding to a demanded discharge quantity without cutting a runner and preparation of many impellers with different sizes as well as capable of restricting increase in cost by efficiently usin...  
JP2014187753A
To provide an on-vehicle feeding controller capable of effectively suppressing generation of wasteful fuel consumption without depending upon determination based on worker's visual observation and even when no workers are present.The on-...  
JP5587386B2  
JP5587270B2  
JP2014163279A
To provide a technique that can appropriately cool a control circuit.A fuel pump 10 comprises: a pump part 30, a motor part 50 for driving the pump part 30; and a housing 2 for housing the pump part 30 and the motor part 50. The motor pa...  
JP5582653B2  
JP2014156789A
To provide a submersible pump that can keep high shaft seal performance.A submersible pump according to an embodiment of the present invention comprises: an electric motor; a pump part including an impeller connected to a rotating shaft ...  
JP2014141939A
To provide a self-priming pump that can secure a high self-priming performance and shorten a self-priming time, and a method for controlling the self-priming pump.A self-priming pump relating to one embodiment comprises: a pump unit havi...  
JP2014138646A
To provide a sprinkler fire-extinguishing pump system capable of executing a jockey pump operation and a sprinkler operation by dispensing with a jockey pump.A control device of each story zone of a medium-high rise building includes: se...  
JP2014138497A
To prolong time of operation with power supplied from a power storage device.A water supply device 300 comprises: a motor pump 310 for transferring water; a power unit 320 which supplies first power supplied from a commercial power suppl...  
JP5550960B2  
JP5543608B2  
JP2014121371A
To provide a fire pump system that meets a standard by controlling an inexpensive general-purse fire pump by inverter drive.An inverter drive fire pump system includes a fire pump for supplying water from a suction side to spray means of...  
JP5524285B2  
JP5518094B2  
JP5508822B2  
JP5513149B2  
JP5506347B2  
JP2014095354A
To provide a pump system that can detect backflow of liquid flowing in a pump pipe without providing a backflow detector in the pump pipe.A pump system comprises: a plurality of pump units 2A, 2B, and 3C each including a pump P and a mot...  
JP5492910B2  
JP2014080874A
To suppress the heat generation of a bearing due to flow rate deterioration by stopping rotations of a rotor, when pump efficiency is deteriorated.A control portion 7 for controlling feeding voltage to a stator 5 so as to keep a predeter...  
JP2014080950A
To provide a low cost water supply system in which a water supply device have functions for specifying a pressure desired value, an initial time inverter frequency (a desired flow rate) and a required number of pumps and a useless operat...  
JP2014074362A
To remove floating contaminant in self-priming pump through repetitive withdrawal operation.A self-priming pump system 1 comprises a lift pump 11 for sucking up sewage water W1, self-priming tank 13 for performing gas-liquid separation o...  
JP5475607B2  
JP2014062505A
To provide a water supply device in which starting frequencies of pumps are managed to a prescribed value, and a wasteful operation is excluded while equalizing operation loads in operating the plurality of pumps.A water supply device in...  
JP5460425B2  
JP2014055532A
To provide a water supply device capable of managing a starting frequency of a pump to a prescribed value, and excluding a wasteful operation while equalizing operation loads in operating a plurality of pumps.A water supply device in whi...  
JP5443645B1  
JP2014043838A
To provide a feed-water pump and a full water level detecting method of the feed-water pump capable of properly judging whether an internal part of a pump body arrives at a full water level when performing the priming water even in the c...  
JP2014043800A
To provide a pump control device in which an additional inverter device can be easily installed at low cost and that can continue pump operation even if a state quantity measuring device such as a pressure sensor fails.A first inverter d...  
JP5439378B2  
JP2014037840A
To provide a fire pump device that can work reliably and effectively under disadvantageous conditions when a disaster occurs.A fire pump device comprises: a pump 10 for supplying water to water discharge means 50 provided to a pipe on ea...  

Matches 551 - 600 out of 6,790