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Patent Searching and Data


Matches 551 - 600 out of 1,279

Document Document Title
JP2001140769A
To provide an eccentric screw pump with a single shaft suitable for long distance transfer and capable of preventing occurrence of a water hammer phenomenon by gradually reducing the speed of a rotor for stopping so as not to suddenly st...  
JP2001132809A
To provide a stroke length adjusting device for reducing the usage of a lubrication oil, improving a lubrication effect and realizing a simple and small structure. In this stroke length adjusting device, the lead screw for vertically mov...  
JP3184960B2
To enable a pump to be usable for various applications by promoting the labor-saving of a gas-liquid pump device which is provided with high pressure feeding force at low speed, in addition to being less in noise and vibration as well as...  
JP2001107900A
To realize a stable operation over a wide operation range by delaying a generation of a stalling phenomenon at a low flow rate area and inhibiting a generation of cavitation phenomenon at a high flow rate area in a double reverse rotatio...  
JP3176336B2
To carry out low speed rotation, to supply force of high pressure, to reduce noise and vibration and reduce energy loss by separating gas and liquid in each communicating ring shaped flow passage into pressurized gas and pressurized liqu...  
JP2001082372A
To prevent a submersible pump from being filled with a solid substance. A cylinder 11 is rotatably supported at the internal part of a casing. The cylinder is supported by a water sealing type bearing and water is prevented from entering...  
JP3158358B2
To generate high pressure at low rpm by rotating a pipe winding body while the half peripheral part of the pipe winding body fitted with a pipe around a hollow rotating shaft is soaked in the water, and accelerating the water scooped up ...  
JP2001501702A
(57) -- it is an impeller pump for sending a lot of water with the head not more than summary 1 meter -- abbreviated -- it consists of the housing with a perpendicular axis which carried out the approximately round shape, and an impeller...  
JP3129927B2  
JP3152974B2
PURPOSE: To provide a liquid pumping device which is suitable for transfer of a slurry solution mixed with solid materials or liquid of relative high viscosity, and insures watertightness in a solution passage so as to heighten liquid pu...  
JP2000320482A
To provide a pump for eliminating a central rotary shaft which is the maximum resistance of fluid movement and cause the occurrence of high efficient fluid movement. A plurality of permanent magnets 3 are attached to the outside of an in...  
JP2000303986A
To provide an integral motor pump integrating an electric motor with a pump shaped up in a compact form while its cooling performance is being made excellent. A stator 10 over the core 32 of which a coil 34 is wound, is sealed in fluid s...  
JP2000287430A
To provide a brushless motor capable of smooth rotation with small torque ripples and a stable output while a magnetic pole position can be detected accurately. A brushless motor includes a stator 22 fed with a driving current for genera...  
JP2000274398A
To connect pipelines before and after a pump or a fan with each other so as to be in a coaxial form without being bent, and to prevent fluid fed with pressure from leaking. In order to axially suck in fluid from one pipeline 2 so as to a...  
JP2000274386A
To provide an external driving type line pump small in size, high in head and efficiency, capable of securing dimensional accuracy with its structure made simple. This is the kind of an external driving type line pump provided with a dri...  
JP2000262404A
To provide an inexpensive, compact pump structure for a hot-water supply device with excellent performance of pouring hot water, with a simplified structure by reducing the number of parts, and with high dependability. A reciprocally rot...  
JP2000257582A
To downsize a device, improve lifting, improve an efficiency, and ensure size accuracy by disposing a rotor provided with a mouth ring part having a driving magnet on a circumference, a stator for generating a rotary magnetic field for d...  
JP2000240562A
To provide a high pressure gas-liquid pumping device capable of rotating at a low speed, providing high pressure power, reducing the noise vibration, reducing the energy loss, simplifying the structure and operation with the low cost, fr...  
JP2000230491A
To provide a compact pump unit and an electric thermo-pot each employing a high efficiency screw pump, and a method of manufacturing a lead screw for a screw pump which makes the pump operation highly efficient. A screw pump having a spi...  
JP3099227B2
To reduce the operation time of a submerged pump by proving a water supply pipe layed across the part between both obstacles, wherein a water suction inlet is positioned below the level of water in the suction inlet, a submerged pump is ...  
JP2000227085A
To carry out increasing pressure and melting liquid without using a compressor by releasing a liquid obtained by melting and liquefying gas from a release port disposed on a lower part of a gas-liquid separating chamber to external water...  
JP2000227175A
To prevent backflow caused by siphon action, prevent clogging with foreign matter, and increase versatility, simply and at a low cost, by sensing change of pressure difference between two points generated by change in flowing direction i...  
JP3073570B2  
JP3068711B2  
JP2000508735A
(57) In the slewing mechanism with a shuttlecock which consists of the external casing which has forced to be able to perform either fixation or attachment for summary rotation, and for fluid to pass when using it, It is characterized by...  
JP2000170649A
To generate high pressure at low rpm by rotating a pipe winding body while the half peripheral part of the pipe winding body fitted with a pipe around a hollow rotating shaft is soaked in the water, and accelerating the water scooped up ...  
JP2000170682A
To make liquid be discharged efficiently, prevent cavitation, and make the liquid flow backward surely and smoothly.A small pump device 1 is provided with an introducing part 10 for introducing liquid, a discharging part 11 for dischargi...  
JP3050407B2  
JP2603893Y2  
JP2000073982A
To provide a line pump of a miniaturized size, less reflux quantity at high pump head, low demand, high motor efficiency and pump efficiency, and non-adherence of foreign matter. This line pump, which is equipped with a housing 1 provide...  
JP2000073995A
To improve the finishing accuracy of a surface of a casing by turning a turning arm so as to work a surface to be placed with cement of an inner surface of the casing along a turning arc, and moving the position of the turning arm along ...  
JP2000073979A
To improve increase of pressure gain and lowering of pressure received by multiphase fluid. This device includes a housing, a hub, a rotary shaft, and a means capable of varying fluid pressure and this means includes at least two blades ...  
JP2000502420A
PCT No. PCT/CH96/00335 Sec. 371 Date May 6, 1998 Sec. 102(e) Date May 6, 1998 PCT Filed Sep. 26, 1996 PCT Pub. No. WO98/11650 PCT Pub. Date Mar. 19, 1998The rotary pump (3) according to the invention comprises a housing (9) and a rotor (...  
JP2000054978A
To pass an inclusion in a fluid in a center part of a fluid machine by arranging a fluid step difference part having a specified radius on a part of a static flow passage, and not having a fluid machine composing element in a specified r...  
JPH11336687A
To enable a pump to be usable for various applications by promoting the labor-saving of a gas-liquid pump device which is provided with high pressure feeding force at low speed, in addition to being less in noise and vibration as well as...  
JPH11311194A
To prevent advance of air toward a pump so as to prevent falling of water by arranging a closing valve for shutting out flow of air reserved in a delivery pipe side when a delivery valve is opened, in a direction perpendicular to a flow ...  
JPH11304553A
To provide a flow rate detector with pumping function for hot water supply apparatus, usable also as a high-energy efficiency pump and capable of detecting the flow rate during using as a pump. A baffle blade 3 which is twisted to give a...  
JPH11303788A
To prevent contamination of chemicals to be transferred by a liquid feeding line pump, and improve its maintenance property. In an in-line screw pump for transferring liquid, a rotor 30 is radially supported by means of magnetic bearings...  
JP2965843B2  
JPH11280917A
To provide a sealing device to achieve necessary circulation even at a low rotation speed and reduce a necessary space through an efficient and safe method, in a sealing device of a type circulating barrier liquid and being a replacement...  
JPH11247788A
To transfer and treat drainage containing large-sized solid while keeping transferring performance and reliability. An impeller 8 is attached to a leading end of a motor shaft. The impeller 8 is composed of a substantially cylindrical hu...  
JPH11247783A
To optimize a load of a blade, prevent inclination of a blade and suppress abrasion thereof in a fluid machine. A spiral blade 33 is reciprocably attached to a spiral groove 31 formed on an outer periphery of a roller 21 which can relati...  
JP2969321B2
PURPOSE: To reduce the size and weight by introducing high rotating speed, to realize cavitation free operation, and to improve efficiency by improving the suction performance so as to enable compatibility of specific speed with suction ...  
JPH11230088A
To reduce vibration and noise by forming the intake path of a fluid between a housing and one end section of a rotor, forming the discharge path of the fluid between the housing and the other end section of the rotor, and allowing the ro...  
JP2598613Y2  
JPH11210662A
To provide an inexpensive and compact axial-low pump by reducing parts in number, and facilitating its assembly works. This axial-flow pump 1 is so constituted as to be formed out of a stator 3 composed of a laminated core 10 wound in th...  
JPH11201072A
To prevent interference and clogging as well as to enhance pump capacity by making difference in the clearance of a gap such that the clearance of a gap in a radial direction between a screw and a screw housing part is smaller than that ...  
JPH11201087A
To solve problems such as clogging and a low efficiency by arranging a front edge of an impeller in a plane surface which is perpendicular to an impeller axis, and extendedly arranging a supplying groove from an inlet to an outlet in a p...  
JPH11201071A
To carry out low speed rotation, to supply force of high pressure, to reduce noise and vibration and reduce energy loss by separating gas and liquid in each communicating ring shaped flow passage into pressurized gas and pressurized liqu...  
JPH11201073A
To provide a shaft bearing base for a screw pump to easily and correctly install the screw pump without reducing rigidity of the shaft bearing base, and an assembling method therefor. In a shaft bearing base assembled around an upper sha...  

Matches 551 - 600 out of 1,279