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Patent Searching and Data


Matches 501 - 550 out of 2,711

Document Document Title
JP3637154B2
To attain low noise by rotating a runner at a low speed through a motor equipped with a permanent magnet rotator, improve durability, and attain size reduction and easy fitting inside a washing machine body or the like, in a pump device ...  
JP2005048675A
To provide a self-priming pump having improved pumping performance and efficiency by reducing a gap between the inner diameter of a mouth portion of a partition plate and the outer diameter of an impeller.The self-priming pump comprises ...  
JP3618077B2  
JP2004332594A
To minimize syphon breakage, by securing water in a pump chamber by an amount enough for its self-priming action, in a self-priming pump.In an upper casing 20 and a lower casing 30, a suction pipe 23 is disposed to a ceiling part, and a ...  
JP3586392B2  
JP2004293449A
To provide a water filling device which has fewer factors of failure and high certainty in the operation when needed as the water filling device using a dry type vacuum pump having high economical efficiency as a whole of the device.The ...  
JP3576081B2  
JP2004278404A
To provide a self-priming pump not needing connection of an internal suction pipe inside an enclosure of a water heater or the like, capable of having an external suction tube directly connected at the lower edge of the enclosure.A pump ...  
JP2004278470A
To provide a small, low-cost pumping system capable of being easily operated, a priming device used suitably for this system, and a pumping method.The pumping system is constituted so as to include a pump 1 having a water suction pipe 3 ...  
JP2004270447A
To provide a seawater intake/supply pump apparatus low in cost, high in reliability and having corrosion resistance to seawater without using a special high-cost pump and equipment.This seawater intake/supply pump apparatus is provided w...  
JP2004263653A
To provide a further compact pump while securing opening/closing stroke of a check valve.The check valve is disposed in a space in a steam separating chamber on the upper side of a pump runner, and a bag-shaped section for securing the o...  
JP2004251287A
To provide a filter to be used in a washer pump in which a water film on the filter can be broken to suck cleaning liquid into a pump chamber to be securely discharged from a liquid discharge port by evacuating a pump chamber to make it ...  
JP2004245374A
To solve a problem of an air vent valve used in a pump and piping wherein a clearance between a float and a guide is narrow because opening and closing operation of the valve is performed by buoyancy of the float and impurities included ...  
JP2004202093A
To ensure that the air does not remain in a main body of a pump or in discharge piping.In the fire fighting pump wherein a vacuum pump is connected through suction piping to a proximal end part of intake piping fixed to an intake apertur...  
JP2004183566A
To significantly eliminate the noise generated by discharging water used as sealing water onto the water surface of storage water.This pump apparatus, equipped with a vacuum pump 1, a water tank 2 for storing the water for supplying seal...  
JP2004183561A
To provide a self-priming pump which immediately shifts to pumping operation while rapidly separating and removing gas in self-priming operation, and which has low return flow-rate and good pump efficiency in the pumping operation.A part...  
JP2004176708A
To quickly supply water while preventing damage of an engine caused by overheat/seizure of the engine driving an impeller.In a portable fire engine, an intake flow passage communicates with an inlet port of an impeller chamber, and a dis...  
JP3537268B2
To provide a controller of a ventilator suitable for use with a car air conditioner. This controller comprises a stator 1 provided with coils with plural phases, a cage-like rotor opposing to the stator 1 and connected to a ventilator me...  
JP2004162591A
To provide a self-priming pump shortened in air discharge time and reduced in size and weight as compared with a self-priming pump of a conventional structure by enhancing self-priming performance.In this self-priming pump, a water stora...  
JP3533448B2
To provide a pump device to prevent the occurrence of siphon break during opening operation of a discharge valve, line resistance is rapidly decreased and a pressure in a pump discharge pipe is decreased to a value lower than an atmosphe...  
JP2004132328A
To provide an evacuation equipment using a water seal type pump which can be operated without the necessity of supplying new water from the outside.The evacuation equipment includes the water seal type vacuum pump 1, a separator tank 2 w...  
JP2004116311A
To provide a pumping system with high reliability, at the same time with simplifying a control substrate of the pumping system and making it compact.The control substrate is comprised of a main substrate for controlling the whole operati...  
JP2004092527A
To further shorten air discharge time, compared with a self-prime pump having a conventional structure by increasing the inlet angle of an impeller and further enhancing the self-priming performance.A volute-shaped water storage space (s...  
JP2004092439A
To further miniaturize a water storage space by adapting self-priming system and effectively use the water storage device in pumping up.An intake spiral chamber 26 communicating with an intake port 10 opened in a transverse direction is ...  
JP2004060463A
To lower and suppress the generation of vibration and noise in the operation of a pump at low head.Swirl vanes radially extend from a runner boss to connect outside arcuate barriers 15 to the runner boss, and the base of a trapezoid whos...  
JP3499743B2
To provide a self-priming pump which has high self-priming efficiency and high pumping efficiency. A self-priming pump 1 is composed of a pump part 4 which has an inner space divided into a tank chamber 20 and a pump chamber 21 by means ...  
JP3499008B2
PURPOSE: To provide an automotive fuel pump causing little noise during operation and having a good pump efficiency. CONSTITUTION: A fuel pump of the regenerative turbine type has an impeller enclosed between a pump cover and a pump bott...  
JP2004052577A
To provide a self-priming pump having improved compact construction and pumping performance by optimizing the shape of a discharge flow path and the spreading angle of the discharge flow path for suppressing the interaction of swirl gene...  
JP2004044487A
To provide a self-priming vortex pump requiring no gas-liquid separating tank and also capable of suppressing malfunction such as air lock even in the case that a great amount of air is mixed in fluid.This self-priming vortex pump 1 equi...  
JP2004027960A
To improve the discharging performance in starting by easily automatically discharging the air stored in a casing, while improving the pumping efficiency in an immersed pump.In this immersed pump wherein an impeller 5 is mounted on a rot...  
JP2004027915A
To reduce the number of part items constituting a pump for cost cutting and miniaturization, to prevent the backflow of the pump and a fall of an impeller, and to improve a pump efficiency.The pump is provided with an impeller 22 in a ro...  
JP2003328975A
To provide a pump reduced in the generation of noise and vibration and shortened in self-priming time.In a motor part of this pump, a rotor having a magnetic body in the inner periphery of a stator is supported freely to rotate by a supp...  
JP2003328976A
To provide a self-priming pump which reduces foreign materials to be caught by a rotor or winding on the rotor, adhering and staying to/in the pump.This self-priming pump 1 is provided with a motor part 10 having a water suction opening ...  
JP2003301788A
To provide a self-priming type pump which prevents any foreign matters from entangling with its rotor and allowing loose hairs, thread waste, etc., having flowed into the pump eventually to be discharged to outside the pump as they are.T...  
JP2003278685A
To provide a self-priming volute pump capable of matching pump specifications to actual user's specifications while maintaining self-priming ability only by application of simple machining to an impeller without diamond- cutting of the i...  
JP2003269360A
To provide a self-priming pump which avoids a shortage of a fluid film in an idle rotation state of a mechanical seal by automatically supplying priming water to the mechanical seal upon priming operation without interrupting a circulati...  
JP2003254278A
To provide a self-priming pump that shortens a self-priming time by efficiently discharging air in the pump and improving self-priming performance.The self-priming pump 1 integrally comprises a motor part 10 with a water suction opening ...  
JP2003239887A
To provide a self suction type pump in which noise is reduced, and, a self suction characteristic and stable operation is maintained.This self suction type pump is provided with a main body casing 20 housing an impellor therein, a second...  
JP2003227599A
To provide a power generating device adding all electric requirements including propulsion force on the basis of an alternating current generator driven by an internal combustion engine or a gas turbine supplied with loaded gas.The metha...  
JP2003227488A
To provide a full-water holding device for a horizontal pump which performs quick response operation during a rainfall period.In this horizontal pump wherein an opening part 3a is formed on an upper part of a pump 3, a priming detector 1...  
JP2003227487A
To provide a self-priming pump improved in self-priming performance while keeping pumping performance.This self-priming pump comprises an impeller chamber 33 communicated to a water sucking channel 43 and accommodating an impeller 44, a ...  
JP2003172263A
To provide a vacuum pump capable of preventing a damage and a degradation in performance caused by a rotation of a piston against a cam.A pair of opposed receiving surfaces 36, 37 is provided on the piston in a casing 20. The piston 23 i...  
JP2003148373A
To shorten air discharge time compared to a self-priming pump of conventional structure by enlarging an inlet angle of a runner.Between a suction port 10a and a delivery volute 22, a volute- shaped water storage space (suction volute) 40...  
JP2003139083A
To quickly put the inside of a suction pump and the inside of a pump body in a vacuum state, and to eliminate the remainder of air in the pump body.In this fire pump, a vacuum pump is connected via a suction side suction pipe to a base e...  
JP2003120568A
To reduce facility cost by allowing the formation of a condition of filling with water without using a vacuum pump in the start-up of a volute pump.A seal water line 14 provided with a sealing pump 11 and a cut-off valve 13 is laid in or...  
JP3394432B2
To provide a horizontal shaft pump reducing the starting torque required for a motor driving the pump and capable of quickly starting a pumping operation. An opening section 35 is provided at the upper section of a suction elbow 12 on th...  
JP3394544B2
PURPOSE: To prevent the occurrence of vapor in a trochoid pump type gear pump. CONSTITUTION: A plural number of pressure chambers 50 is formed between the outer rotor 33 and the inner rotor 34 of a trochoid type pump section. When these ...  
JP3388946B2
PURPOSE: To reduce a noise and vibration by lowering discharging speed of vapor entrained fuel. CONSTITUTION: In a fuel pump device having a vapor by-pass port 50 communicated from a pump house to the inside space of a fuel tank, a vapor...  
JP2003065276A
To provide equipment which is inexpensive and can easily pump up water.This self-supply pump mainly comprises a small-diameter intake pipe, a liquid tank with a liquid-level meter, an oil-rotation type vacuum pump and a liquid feed pump,...  
JP2003056711A
To provide a plug having superior corrosion resistance. This plug is so formed that a hollow part 10 recessed inward is formed in the tip surface of a plug body 7, a fitting insertion part 17 capable of press-fitted inside the hollow par...  

Matches 501 - 550 out of 2,711