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Document Title |
JPH11117889A |
To provide a pump device which can have a high discharge rate even in a high discharge pressure range. An impeller 16 is provided with first and second stages movable vanes 20, 21, concentric therewith, and the casing 17 side is provided...
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JP2886444B2 |
A full-circumferential flow pump includes a motor having a stator, a shaft rotatably disposed in the stator, and a rotor mounted on the shaft for rotation relative to the stator, an outer frame casing (25) disposed around the stator, an ...
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JP2593986Y2 |
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JP2877497B2 |
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JPH1182358A |
To recover the high-pressure energy discarded from a discharge port so as to effectively utilize this energy as a part of the driving force in a pump having a rotor to be rotated by a driving source by forming a rotor with a fluid receiv...
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JPH1182364A |
To miniaturize related parts so as to reduce the weight of a device while reducing the outer diameter of a balance disk by providing a plurality of vanes for energizing the liquid inside a high-pressure chamber so as to raise the pressur...
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JP2870961B2 |
A hydraulic fluid pump (10, 90) for aircraft turbine engine fuel delivery systems comprises a housing (12, 96) having a pump drive shaft (16) mounted for rotation therewithin. A centrifugal pump stage (26) includes an impeller (28) coupl...
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JP2591739Y2 |
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JP2865716B2 |
A regenerative turbomachine has a rotatable bladed impeller (1) and an annular housing (3) surrounds the impeller (1) and defines a topological flow channel for a working fluid. There is also an inlet port (4) for admitting a working flu...
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JPH1162871A |
To operate with good durability by preventing moisture condensation on a starter winding or a motor bearing part in a motor of a feed water pump for a high floor, for feeding purified water and plant water to the high floor of a building...
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JP2863884B2 |
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JP2858111B2 |
To provide a pump which can restrain the degradation of filtering performance even if a large amount of inclusions gather and facilitate replacement of a filter or removal of the inclusions from the filter. In this pump a motor 4 involvi...
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JPH1137089A |
To provide a centrifugal pump improved in performance so as to be able to increase discharge pressure without adding special constitution. A pump 21 is provided with a centrifugal type closed impeller 22 in a casing 23. The impeller 22 i...
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JP2850116B2 |
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JP2849838B2 |
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JP2846853B2 |
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JP2834644B2 |
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JPH10311298A |
To eliminate an unstable characteristic from a pump head curve by forming a structure of a straightening plate arranged between diffuser blades as a fine mesh structure in the vicinity of a diffuser blade wall, and forming a part where a...
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JP2584408Y2 |
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JP2584018Y2 |
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JP2811527B2 |
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JPH10267310A |
To provide a water draining pump-fixing structure for an air conditioner in which its replacement work can be easily carried out and its workability is improved. One side of a side wall 5 of a main body is provided with an opening 5a hav...
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JP2808417B2 |
PURPOSE: To utilize a circulating pumped-up liquid as a cooling medium and to improve a radiation effect by a method wherein the head part of a heat generating electronic part is disposed in an adhering state on the inner surface of the ...
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JP2794160B2 |
PURPOSE: To improve the efficiency of a centrifugal pump where a guide wheel, a radially and/or axially developed spiral member, and a diffuser-shaped delivery pipe are disposed in the region of the last pump stage as a separate built-in...
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JPH10231793A |
To provide a magnet driving pump which can be composed at a relatively low cost and easily, even though the pump is a multistage pump with a long pump shaft, for example, and prevents the damage of a bearing in a lost operation or an air...
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JPH10227297A |
To put a valve element into close contact with a drain port to prevent a water leak, even if food wastes are attached to the surface of the valve element, by providing an elastic member on the surface of the drain port of a selector valv...
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JP2788186B2 |
PURPOSE: To provide an end cover structure capable of restraining tensile stress which is generated near an R part for joining an end cover to a metallic member. CONSTITUTION: A circumferential groove 13 and an elastic layer 1 which is i...
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JPH10184590A |
To reduce noise without collision noise of water colliding with a housing and eliminate any generation of a vortex by constituting a spiral peripheral portion of a spiral portion curved into a spiral shape on a drive shaft in such a mann...
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JP2766637B2 |
A pump (10) is provided with a vortex generaing member (35) which rotates about a central axis (32) to generate a vortex column (30) of liquid which has a rotary velocity and which is directed to the pump inlet (15). At the pump inlet, t...
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JPH10159783A |
To automatically lessen a flow at a low water temperature and ensure the reduction or the like of the warming-up time of an internal combustion chamber by providing a variable volute between a volute chamber inner wall and an impeller so...
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JP2764677B2 |
PURPOSE: To provide a multistage pump capable of safely running continuously for a long time without degrading the pump performance even if a handled liquid containing foreign matters such as calcium carbonate or sand is pumped up. CONST...
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JP2762210B2 |
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JPH10141287A |
To switch a circulating direction of hot water without a three way valve which is provided separately by selectively close first and second pipes according to a rotational direction of an impeller, and providing a valve member for delive...
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JP2572060Y2 |
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JPH10131893A |
To reduce vibration and noise of a centrifugal fluid machine with a vaned diffuser by reducing propagation of vibration, generated at the front edge of a diffuser vane, to a stage. A diffuser vane 6 is formed as a separate body from a st...
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JPH10504779A |
(57) [Summary] A marine water jet propulsion device that navigates even in shallow water has a pump wheel (3) that sucks water in the vertical direction, and has blades that allow water to flow from the pump wheel in a direction between ...
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JPH10108416A |
To suppress the formation of vortexes of cooling air and reduce noise without degrading cooling capability, by forming the end face of a fan blade outlet section so that it will be gradually away from the end face of an end bracket as it...
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JP2568209Y2 |
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JPH1089279A |
To eliminate the need for a temporary clamping work and to damp vibration through internal viscosity of water at the gap of an intermediate casing. A single drum sectional type multistage pump comprises an impeller 3; a diffuser 12; a si...
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JPH1089283A |
To enable a static pressure bearing to function by a method wherein when the discharge pressure of a pump is used as pressure water used for the static pressure bearing, even when a discharge pressure is not sufficiently high, pressure w...
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JP2729637B2 |
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JP2718969B2 |
PCT No. PCT/AU87/00423 Sec. 371 Date Aug. 4, 1989 Sec. 102(e) Date Aug. 4, 1989 PCT Filed Dec. 15, 1987 PCT Pub. No. WO88/04733 PCT Pub. Date Jun. 30, 1988.A centrifugal pump for accommodating entrained gas and vapor at low absolute suct...
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JP2563543Y2 |
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JPH1047286A |
To obtain a water pump, which can overcome the disadvantage that an impeller and a casing are stuck to each other by rust generated when the water pump is not operated and let along over a long period of time. This water pump comprises i...
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JP2561854Y2 |
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JPH1030731A |
To provide a seal device with both the sealing effect and the bearing effect. A plurality of stages are provided between a balance sleeve 6 and a balance drum 7 to form a seal device, and the length of one stage is larger than that of ot...
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JPH1018999A |
To prevent harsh abnormal sounds or noises from being emitted from a drain pump. This drain pump comprises an impeller 3 having a plurality of blades 2, and a pump casing 1 housing the impeller 3 therein. The pump casing 1 has a drain su...
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JPH09512872A |
A multistage centrifugal pump for increasing the pressure of a product fluid passing through it. The pump includes a casing, an impeller shaft mounted for rotation within the casing and a plurality of impellers mounted back-to-back on th...
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JPH09329100A |
To provide a drain pump having enhanced ability in draining and pumping up, and mountable with advantages such as facilitated construction, less restricted and easier equipping, and good apperance. In this drain pump 18, good flowing out...
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JPH09324785A |
To sufficiently enhance pump efficiency by improving a shape of an opening part while maintaining a shape small in resistance to a high speed fluid. In this Pitot tube type pump, a rotary body is rotatably housed and arranged in a housin...
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