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JP3394298B2 |
PURPOSE: To provide a pump group which comprises a plurality of metal plate centrifugal pumps having the same nominal diameter, which does not require enlarged outer diameters of impellers even in a high lift area, and then suppresses an...
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JP3394087B2 |
PURPOSE: To shorten an overhang, to reduce a bearing load, to suppress bending of a main shaft to a low value, and to reduce size and weight by a method wherein a bearing on the side in the vicinity of an impeller is disposed integrally ...
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JP2003097481A |
To provide a drainage pump for preventing the rotation of a case body member by preventing the rotational movement of a motor receiving member for constituting a case and a locking piece in the case body member.This drainage pump 1 is pr...
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JP3380297B2 |
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JP2003013883A |
To provide a centrifugal pump having an impeller capable of generating equilibrium of the thrust force acting on the impeller from ahead thereof and behind.The impeller 26 of the centrifugal pump is furnished with a back face wear ring 4...
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JP3363321B2 |
To provide a multistage pump device in which casing groups can be fastened by a fastening band without using welding while restraining shearing stress from being generated. One fastening seat 20 of a fastening band 8 in which fastening s...
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JP3353098B2 |
PURPOSE: To enable eliminating of sound sufficiently as generated when drain water is stirred by a blade during the operation of a drain water discharging pump and moreover, discharging of the water smoothly without jamming an atmospheri...
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JP3352924B2 |
There is provided a hydraulic turbomachine comprising a housing, one or more impellers arranged rotatably around an axis within the housing, one or more resin-made diffusers provided around the one or more impellers for defining diffuser...
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JP3348226B2 |
To restrict the generation of noises and vibration associated with breaking of bubbles by allowing churning of drain water smoothly without altering the conventional structure of a drain pump significantly to reduce the generation of the...
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JP3340237B2 |
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JP2002310087A |
To reduce a cost by using a mechanical seal for shaft seal of a rotor chamber and easily and simply fitting the mechanical seal thereto.This motor pump connects a pump part P to a motor part M in series and is used in water or in liquid....
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JP2002310086A |
To provide a highly reliable seal-less motor pump retaining circulation liquid to an appropriate quantity even in a high lift, retaining the pressure of a liquid circulation channel to high, eliminating a residual axial thrust force whil...
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JP2002310090A |
To provide a submerged motor pump capable of reducing the cost by reducing the number of components and manhour.This motor pump connects a multistage pump part P to a motor part M in series and is used in water or in liquid. Respective c...
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JP2002310084A |
To provide a pump capable of realizing a high lift by enhancing a viscous and frictional force of liquid refrigerant to be pumped and to provide an air conditioner having the same.This pump is so constituted that an outer cylindrical bod...
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JP2002242885A |
To provide a drainage pump, in particular of an air-conditioning appliance, capable of suppressing or preventing generation of abnormal vibration and associated noise emission while the pump is in operation.The drainage pump is equipped ...
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JP2002242873A |
To eliminate a drain board from a drain pump for an air conditioner.Length of time of reach stopping of the pump is shortened by increasing rotational inertial force of a rotor of a motor part 30 in the drain pump 1 for the air condition...
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JP3317808B2 |
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JP3316514B2 |
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JP3310822B2 |
To prevent the occurrence of cavitation through a simple device, in a pump, having two or more impeller, wherein fluid is sucked through a common suction port and fluid is discharged through delivery ports individual from each other. In ...
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JP2002195198A |
To provide a pump device for liquefied gas capable of assembling a pump without disassembling a rotary body after correcting dynamic balance, shortening assembly work hours, preventing assembly in an unbalance condition due to human erro...
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JP3282772B2 |
PURPOSE: To reduce the size and noise of a drain pump installed in such a device as an air-conditioner. CONSTITUTION: A pump roper 10 of a drain pump 1A has a pump room 12, a suction port 15, and a discharge port 17. A rotary wing 100 di...
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JP2002138992A |
To reduce noise of a drainage pump provided in an air conditioner.The drainage pump 1 has a pump housing 40 having a suction port 42, a pump chamber 44, and a discharge port 46 and a cover 32, and a rotary vane 50 inside it is driven by ...
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JP2002098087A |
To provide economical and multifunctional constitution reduced in the number of motors.This pump unit comprises a plurality of pump chambers 3-8 having blades 2 and stacked in multiple stages being provided on an axis of a rotating shaft...
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JP3264542B2 |
PURPOSE: To prevent leakage of water and noise, and also to enable the ability of a pump to be enhanced. CONSTITUTION: In a pump provided with a runner 3 wherein a blade is hung in an approximately conic pump case 1 whose axis is vertica...
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JP3254325B2 |
PURPOSE: To reduce vibration and noise without lowering the fluid head and the discharge volume, by providing an impeller composed of blades projected from a journal part and an outer ring concentrically surrounding the maximum diameter ...
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JP3249332B2 |
PURPOSE: To realize various pump forms without complicating structure in an outer casing and secure passage area without enlarging the general outer diameter of the outer casing so as to realize a compact pump. CONSTITUTION: A pump assem...
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JP3247992B2 |
The 8 kW refrigerating system comprises a condenser, evaporator and two-stage centrifugal compressor assembly with an electric motor provided with a cooling system. The condenser inlet is connected to the compressor assembly outlet, whil...
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JP2002501602A |
The use of a working fluid that is subject to freezing is achieved in a fluid system including a rotating fluid management device (RFMD) (10) and a pair of fluid flow loops (22, 27) connected to the RFMD (10) and arranged so that the inv...
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JP3231453B2 |
PURPOSE: To reduce a bearing load when a pump is started, and improve reliability by constituting respective delivery holes of holes having a high pressure holding valve and holes in an always opening condition in a submerged pump device...
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JP2001522425A |
(57) [Summary] According to the principles of the present invention, a pumping system (90) is provided in one preferred embodiment. The system includes a housing (108) that rotatably supports the tube (112), and a plurality of magnets (1...
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JP3226853B2 |
To reduce the cost of a pump and to prevent the reduction in sealing property by constituting a flat flange member for forming an O-ring groove on a seal surface by means of press working separately from a pump casing, and connecting it ...
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JP3207858B2 |
A sealless centrifugal blood pump (10) is provided in which a rotatable impeller (64) is supported in a pump housing (12) by fluid bearings (30, 182) during operation. Rotational movement of the impeller (64) is accomplished with an inve...
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JP2001241396A |
To provide a compact multi-stage pump capable of improving freedom degree related to the connection direction to pipings, and facilitating non-oil and degreasing treatment.This multi-stage motor pump is provided with a motor frame 2 for ...
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JP2001241400A |
To provide a pump unit capable of saving space by rationally coping with many piping assembly forms without impairing productivity.This pump unit comprises a pump casing 24a-24c as a one side-opened cylindrical container having a bottom,...
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JP2001207987A |
To provide a drainage pump, which is reduced in size and weight without lowering pumping function and can reduce a space for installing the drainage pump to an indoor device to implement size reduction of the indoor device.The drainage p...
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JP2001178991A |
To provide a washing machine with excellent quietness. An impeller 41 is provided with plural blade plates 45 separated with equal pitches in a peripheral direction and a spiral plate 47 is oppositely arranged on the outer peripheral sur...
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JP3182307B2 |
PURPOSE: To provide a full arc flow type pump by which external force (external pressure) applied to a motor frame outer barrel to surround a motor stator is uniformized and strain and deformation of a motor frame are prevented and which...
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JP3179672B2 |
PURPOSE: To provide a pumping device having self-control mechanism provided at a pump itself so as to control discharge pressure to be constant to load fluctuation. CONSTITUTION: A pumping device is provided with a vortex chamber 7 dispo...
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JP3176494B2 |
PURPOSE: To provide a multistage centrifugal pump that is able to disperse all the load to be added to a thrust bearing and to miniaturize this l:earing by setting up at least more than one impeller shiftably on a pump main shaft. CONSTI...
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JP2001132692A |
To promote lubrication of a sliding surface of a mechanical seal by shortening the length of a centrifugal multistage pump. In this centrifugal multistage pump having a guide blade for guiding liquid discharged from the final stage impel...
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JP2001123976A |
To provide a pump having an oscillating inner ring having long life by simplifying a structure in which an oscillating inner ring for improving lifting characteristics of the pump by absorbing vibration caused by eccentricity of a suctio...
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JP2001123977A |
To reduce noises of operating sound in a drainage pump. A plurality of vane members 22 extending toward the axial core of a shaft part 21 and having the inner ends separated from the shaft part 21 are attached inside a drain guide member...
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JP2001123975A |
To provide a pump with the cost reduced by simplifying a structure in which an oscillating inner for improving lifting characteristics of the pump by absorbing vibration caused by outer diameter eccentricity of a suction part of an impel...
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JP2001115981A |
To provide a multi-stage pump that can be miniaturized, reduce its cost, keep a pump performance, further miniaturize an impeller diameter, increase rotation, and decrease number of stages. This multi-stage pump 1-1D comprises a hollow l...
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JP2001107883A |
To provide a centrifugal fluid machine capable of compensating an impeller thrust by the impeller itself and easily realizing a small size and a cost reduction. A centrifugal pump 1 for feeding a fluid by rotating an impeller 8 mounted t...
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JP2001099091A |
To provide a centrifugal compressor so as to obtain the high pressure A device of this invention includes an impeller, which has vanes 5, 6 forming two pressure steps and directed in the radial direction and a circular disk 3 provided on...
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JP2001099090A |
To provide a pump improved in efficiency at a low cost while lowering the disk frictional loss with the simple structure in response to a request for miniaturization and high-efficiency of pump, comparing with a conventional one with the...
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JP2001070438A |
To enable the suction or injection of high-viscosity liquid while suppressing the invasion to the living body to a lower level by providing a suction and injection pump capable of exhibiting a sufficient transfer quantity to the high-vis...
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JP2001050267A |
To provide a damping bearing that incorporates a compact-sized bearing and can prevent a drop in critical speed of higher or the third and fourth orders, and a rotary machine that uses the damping bearing. This damping bearing has a main...
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JP2001020896A |
To reduce the size of a drainage pump with which an air-conditioning device is equipped and to reduce the generation of noise.The pump body 10 of a drainage pump 1A is provided with a pump chamber 12, a suction opening 15, and a discharg...
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