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Patent Searching and Data


Matches 451 - 500 out of 1,504

Document Document Title
JP2004060626A
To provide a low-cost product by improving the construction of a blade for generating a swirling current and simplifying the multistage construction while greatly reducing the number of parts of a high-compression-ratio blower and a vacu...  
JP2004003447A
To improve the fan efficiency of an impeller of a fan for an air-conditioner.In an impeller of a diagonal flow fan having a plurality of blades on a substantially truncated conical hub, an outer circumferential side chord length of the b...  
JP2003322095A
To provide a pumping stage for a vacuum pump having an improved geometry enabling an optimum balance between pumping rate and exhaust pressure in the pumping stage.In this pumping stage 1, an axial extension range, that is, a height of a...  
JP2003314500A
To improve cooling performance without increasing noise.This blower 31 is provided with a casing 35 comprising a frame 32, a disk part 33, and a stay 34 laid at the upper and lower parts between the frame 32 and disk part 33. A motor cas...  
JP3460273B2
PURPOSE: To decrease manufacturing by comparatively simplifying the form of a blade, and to improve aerodynamic characteristics so as to obtain high efficiency. CONSTITUTION: A rotating impeller 2 is stored in a circular casing 1 having ...  
JP3448925B2
PURPOSE: To provide a vortex blower which can be widely used as the air supply source such as combustion heater by varying the output characteristics. CONSTITUTION: An impeller 2 where a number of blades 21A, 21B are formed at equal spac...  
JP3428859B2
To provide a motor with a cooling fan, in which noises from the cooling fan is reduced, by making the cooling fan small. A motor body 1 and a cooling fan 5 are joined by a duct 3. A slantwise flowing fan is used as the cooling fan 5. An ...  
JP2003193997A
To improve blowing performance and reduce noise in a vane wheel used for a ventilating and blowing apparatus.The vane wheel 1 is provided with a blade 3 whose cross section ranging from the front edge 3c by 1-15% having a thickness 4 of ...  
JP2003193992A
To improve pump efficiency of a fuel pump.An impeller rotating in a pump casing is approximately disk- shaped. In an area extending along the outer peripheries of two sides, groups of recess parts are formed repeatedly and mutually space...  
JP2003181884A
To provide a method for manufacturing an injection-molded resin rotary body hard to generate a waste material and capable of obtaining the flatness of a side surface and the dimension of an outer diameter with high accuracy.In the method...  
JP2003161290A
To provide an impeller for vortex blower suitably usable for a vortex blower provided with a blade having a three-dimensional shape, and a method for manufacturing the same.This impeller 1 for vortex blower is formed as a two-divided str...  
JP2003161291A
To provide a general-purpose vortex blower used for blowing, particularly, a suitably usable vortex blower emphasized on lowering noise and improving efficiency.This vortex blower comprises a blower part 2 composed of the combination of ...  
JP2003161284A
To provide a thin vortex pump capable of being thinned and simplified in structure to obtain a lower cost and a cooling system provided therewith.This vortex pump comprises an impeller 1 comprising a number of blades formed at the extern...  
JP2003155992A
To provide a fuel pump having high sealing property and high pump efficiency, and facilitating assembly.A pump channel 42 forming a pump flow passage 11 is formed in a casing main body 40, and a storage part 43 storing a ring member is f...  
JP2003139094A
To provide a small and highly efficient vacuum cleaner by obtaining a small, lightweight, and highly efficient motor-driven fan for the vacuum cleaner.This motor-driven fan 11 for the cleaner is composed of an impeller 14 having a mixed ...  
JP3406321B2  
JP2003129986A
To provide a motor pump having improved performance by reducing size of a motor and increasing durability, and reducing the leakage of a liquid between a diagonal flow vane and a casing.The motor pump comprises a housing case arranged be...  
JP2003120574A
To provide an efficient motor pump capable of minimizing input power even in the rotation of an impeller at high speed in water.This motor pump comprises a housing case having a connecting passage arranged between a first cap and a secon...  
JP2003097486A
To provide a desired gas supply method by a vortex flow blower by performing feedback control from respective sensors of pressure, a flow rate, and a temperature in the rotational speed control of the vortex flow blower.A motor-driven vo...  
JP2003511596A
(57) The summary centrifugal pump (10) is equipped with the housing which has a fluid entrance port (40) which receives the fluid of initial pressure, and an internal chamber which demarcates a medial axis. While demarcating the 1st and ...  
JP2003083284A
To prevent occurrence of cavitation at vanes of a pump.This pump 10 comprises a main shaft 14 longitudinally rotatably supported inside a casing 12 and plural vanes 16 fixed on the main shaft 14 via hubs 14a arranged with a constant inte...  
JP2003070906A
To provide an actuator for an artificial pump of which the energy efficiency is improved.The actuator is provided with an impeller 120 rotated by driving of a motor 123 and a housing 121 having a first port 121a which sucks or delivers a...  
JP3384565B2  
JP2003056485A
To solve such a problem with the conventional structure of a vortex flow fan that noise is high and air quantity is small though a pressure is high. Where the outside diameter of an impeller is D, a clearance between the outer periphery ...  
JP2003042090A
To provide a lubricating device for a regenerative type vacuum pump or the like. This invention relates to the lubricating device for an upper side bearing 24 of the regeneration type vacuum pump or the like having a vertical shaft 22 su...  
JP2003042091A
To provide a lubricating device avoiding lack of lubrication of an upper bearing supporting a vertical shaft of a vacuum pump. This invention relates to the lubricating device lubricating an upper side bearing and a lower side bearing of...  
JP2002371992A
To reduce the manufacturing cost of an air pump (blower) while preventing an offset between the shaft center of an impeller and the shaft center of a motor (motor shaft). A motor casing part 228 and a pump casing part 229 are integrated,...  
JP2002544428A
(57) in order to improve the efficiency of a summary reproduction pump type machine and to decrease the time and effort and manufacturing expenses of an assembly simultaneously, It has a runner (4) arranged rotatably in a casing (1, 2), ...  
JP2002364579A
To provide a high specific speed pump capable of enhancing the centrifugal effect for a fluid and operating stably over the whole flow range. An impeller 2 is supported in a casing 4 rotatably and the meridian plane of the blades 10 of t...  
JP2002349468A
To provide a cascade pump capable of preventing leakage of liquid from a discharge area side to a suction area side of an operation passage, noticeably improving pump efficiency, and being operated semipermanently without maintenance to ...  
JP2002339889A
To provide an impeller for a circular flow pump capable of increasing the discharge flow and improving the performance of the pump.A blade 13 dividing a blade groove 12 of the impeller 7 is formed so that an inner part 20a in the radial ...  
JP2002540350A
(57) The side channel compressor which has an entrance port for summary gas (42) and an exit port for compression gas (44) is indicated. The side this channel compressor has a side channel (32) which carries out fluid contact of between ...  
JP2002332988A
To provide a vortex blower capable of providing a large quantity of wind with high pressure and reduced noise.A part of the wall of a casing of the vortex blower is made of a porous material which air can permeate. As a result, a large q...  
JP3342914B2  
JP2002310092A
To provide a low-cost vacuum pump comprising a single part, having a compact structure, and occupying only a small area in the vacuum pump to cover the whole pressure range from the atmospheric pressure to the high vacuum of approximatel...  
JP3330606B2  
JP2002276580A
To efficiently transmit the rotation force of an impeller to a fuel smoothly flowing in a blade part and in a blade groove, and mold the impeller easily in a turbine type fuel pump with an impeller rotatably stored in a casing.The rear s...  
JP3328292B2  
JP2002266785A
To provide an impeller for a pump and its molding method enhancing pump efficiency, while having such a vane shape as being molded without forming a scratch thereon.This impeller 42 for the pump and its molding method are so formed that ...  
JP2002266783A
To provide an impeller for a pump further increasing boosting by suppressing a parasitic vortex of a fluid in the impeller and strengthening a vortex.This impeller 42 for the pump constituted by forming a vane part in its circumferential...  
JP2002221183A
To provide a control method of a movable vane pump capable of automatically removing a foreign matter caught in between an impeller vane and a casing liner.This control method of the movable vane pump, constituted of the casing liner 1a ...  
JP2002174193A
To constitute a fuel pump to have excellent pump efficiency.The groove face shape of a blade groove 12c provided to form a closed blade type blade 12c formed at the outer periphery of an impeller 12, and that of recessed grooves 8e, 9d f...  
JP2002089477A
To provide a pressurizing centrifugal pump with a simple and low-cost structure capable of smoothly feeding a sucked fluid with applying both push-out force by a pressurizing face and centrifugal force by blades, and setting both a flow ...  
JP2002081392A
To provide a peripheral type pump in which it is no fear that much heat is generated even at a small size and a cavitation is generated and which is preferable as an auxiliary thermal source of a heating for vehicle.Blades 14 are radiall...  
JP3262802B2  
JP2002039092A
To provide a turbo type dry pump, a coolant gas cooled bearing is arranged as not discharged at high temperature.The supply pipe 10 which supplies the cooling gas which cools the foil bearing 5 for thrust of a turbo type pump mechanism, ...  
JP2002031081A
To provide an improved type molecular resistance vacuum pump structure in the case when pumping speed and a compression ratio are not so important in comparison with lightening and miniaturization.A vacuum pump device is furnished with a...  
JP3243191B2
To excellently damp a noise by arranging at least notches having an almost heart shape in a plan view over its whole radial directional height on both side boundary surfaces in the circumferential direction of an interrupting part to sep...  
JP3243163B2
To improve a compressor unit so as to unite regeneration pump compressors of the same housing diameters with regeneration pump compressors with different housing diameters to one unit. An axial extension 11 is extended to a parting plane...  
JP3082477U
In a housing (1), this design is arranged so that rotation of an impeller (2) is possible, It has the supporter ring (3) in which this impeller attached a shuttlecock (4), and projects in the direction of an axis in one side at least fro...  

Matches 451 - 500 out of 1,504