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JP2690432B2 |
PURPOSE: To eliminate an axial thrust acting on a rotor and generated by a pressure difference between a pressure side and a suction side as much as possible, in a turbo machine having magnetic bearings on both sides of the rotor. CONSTI...
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JP2557672Y2 |
PCT No. PCT/EP85/00057 Sec. 371 Date Sep. 11, 1985 Sec. 102(e) Date Sep. 11, 1985 PCT Filed Feb. 20, 1985 PCT Pub. No. WO85/03745 PCT Pub. Date Aug. 29, 1985.An apparatus for transporting gases, liquids and the like by means of a conical...
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JPH09303281A |
To use internal water for a lubrication purpose for the elimination of an external bearing lubrication device and reduce cost by providing a bearing in a shaft seal chamber, regarding the double barrel multistage pump where a balance cir...
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JPH09303282A |
To prevent an impact noise of water in a pump body and a backflow noise to be produced during the rotation and stoppage of a moving blade from leaking outside to generate noise. A pump case 3 is made up of a body part 11a having an inner...
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JP2672034B2 |
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JPH09264283A |
To provide a pump device in which prevention of vibration generation, compactification, and suppression of a frictional loss of fluid can be accomplished. In a pump device, an impeller 36 is surrounded by means of a pump casing 40, and f...
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JP2650395B2 |
An absorption-cycle heat pump comprises a rotary assembly including a vapour generator (GE, 14), a condenser (CO, 23), an absorber (AB, 22), an evaporator (EV) and a solution heat exchanger (X,16). The vapour generator, the condenser and...
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JPH09209962A |
To prevent ability deterioration, drainage defective, or increase of noise in a drain pump by installing an eddy protective plate on an outer circumference of a drain suction port. Four triangular flat plates having one side at a lower p...
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JPH09209961A |
To provide a fluid drive device integrated with a piping and without occupying a place. When an electric power is supplied to a motor 28, the motor 28 is rotated and its torque is transmitted to a ring body 4 through a gear 30 mounted on...
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JPH09195985A |
To achieve optimal operating condition for compressing a multiphase fluid by setting an angle foamed by a tangent of a skeleton curve rated from leading edges of first and second impellers for forming a vane to a specified numeric value ...
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JPH09195968A |
To prevent liquid flaw and deterioration by forming a narrow groove having a required curve shape and required thread numbers, housing a disk plate in a required casing, installing and rotating the disk on a main shaft, and applying pres...
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JP2613363B2 |
PURPOSE: To prevent a passage from being narrowed by stay of air bubbles by providing ejectors repectively adapted to extract gas staying in a casing, and inject the extracted gas to an air bubble staying area in each of the first and fo...
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JP2534014Y2 |
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JP2534284Y2 |
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JPH0988864A |
To reduce the thickness of a cover by communicating a suction chamber of an impeller closest to the cover side with an inner space from which the pressure is applied to the cover to reduce the internal pressure on the cover in a double b...
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JPH0979601A |
To improve flow rate performance and reduce the generation of noise through smoothening of a flow supplied from a cross flow fan by a method wherein the shape and arrangement of a coupling beam for upper and lower blades and right and le...
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JP2527293Y2 |
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JPH0953596A |
To obtain a multiple stage pump in which a new balancing method of ZN fluid exciting force in consideration of a higher-order natural bending mode such as that in which the torsion of the central orbit of the rotor turning shaft is recog...
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JPH0942193A |
To highly reliably fix an rotary impeller to a rotary shaft. In a boss part 4e wherein a rotary impeller 4 is fitted to a rotary shaft 3, the interference of a side plate area part 4e1 whose outer periphery is provided with a side plate ...
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JP2578232B2 |
PCT No. PCT/FR89/00119 Sec. 371 Date Sep. 10, 1990 Sec. 102(e) Date Sep. 10, 1990 PCT Filed Mar. 17, 1989 PCT Pub. No. WO89/09342 PCT Pub. Date Oct. 5, 1989.A rotary machine, having non-positive, displacement, which can be used as a pump...
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JPH09501125A |
(57) [Summary] Amphibious propulsion devices have blades (3) that rotate with the wheels. Each of these wheels has an open delivery channel (4) adjacent to and directed to this area within the area where the liquid exits the blade (3) an...
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JPH0921400A |
To provide a diffuser with vane which can stabilize the Q-H characteristic by eliminating the infection point of the Q-H characteristic curve generated in the low flow rate area of a centrifugal or a mixed flow type pump having a diffuse...
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JP2519265Y2 |
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JPH08296864A |
PURPOSE: To provide a drain pump capable of preventing generation of the noise and the vibration due to the reciprocating drain in the drain pump or the noise due to the suction of the air into the pump, and capable of being operated in ...
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JP2548490B2 |
PURPOSE: To enable the feeding of washing water and rinsing water to a dish washing tank alternately by operating a pump impeller mounted on both shafts of one motor selectively with the normal or reverse rotation of the motor. CONSTITUT...
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JP2544799B2 |
A centrifugal pump of the "sealless" type including a casing containing a pumping chamber, inlet and outlet, and an impeller mounted on a shaft supported by an independent bearing system. The impeller shaft is driven by a motor located o...
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JPH08270587A |
PURPOSE: To estimate the life accurately by expressing the drop of the shutoff pressure at the time of performance deterioration of a centrifugal pump and the increase of the pressure drop coefficient as the function of time passage, in ...
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JPH08270588A |
PURPOSE: To estimate the life accurately by performing the life estimation, based on the change to the time passage of the increased inner leakage of a centrifugal pump, in the case of performing the estimation of life by the discharge p...
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JPH08270589A |
PURPOSE: To estimate the life accurately by performing the life estimation by estimating the amount of increase of inner leakage within a centrifugal pump only by the measurement of currents at the time of pump exit shutoff operation, in...
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JPH08247078A |
PURPOSE: To manufacture a pump of required capacity by accumulating the required number of pump parts by constituting a pump main body by way of accumulating a boss for connecting projected from a guide vane by means of fitting it in a h...
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JPH08232879A |
PURPOSE: To reduce piping resistance to enable water conveying to an elevated spot by disposing a suction pipe of a suction casing in the vicinity of a rotary shaft core of the suction side impeller, and disposing plural discharge pipes ...
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JPH08232880A |
PURPOSE: To improve assembling work efficiency and to reduce manufacturing cost by engaging an upper surface cover with the upper part of a pump main body and engaging an engagement part with the outer peripheral part of a fitting cover ...
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JP2509080Y2 |
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JPH08219077A |
PURPOSE: To enlarge the outer diameter of an impeller without changing the outer diameter of a pump so as to obtain the inexpensive pump that can cope with high head by providing a guide device after handling at a double-shell structure ...
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JPH08214495A |
PURPOSE: To minimize a size of coupling portion of a rotary machine utilizing a coupling shaft by fixing a rotary portion of a bearing to an external diameter part of a coupling for coupling between shafts. CONSTITUTION: A pump shaft 2 o...
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JP2516766B2 |
The present invention provides a pump by vessel revolution comprising a vessel (1) having an inlet (2) for liquid and an outlet opening (3) in a specific tangential direction of an outer peripheral portion thereof, wherein the vessel (1)...
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JPH08177782A |
PURPOSE: To provide a double suction pump by which the thrust direction is stabilized in a reduced space and convection of a handling liquid in a rotary body chamber becomes excellent and remaining water at drain time is reduced without ...
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JPH08159072A |
PURPOSE: To provide a liner ring durable for practical use even when a sliding member made of a rubber material is deteriorated because of aged deterioration, etc., and easy in dimensional control. CONSTITUTION: A cutout is provided on a...
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JPH08151993A |
PURPOSE: To attain reducing a cost and noise by fitting in internal/external peripheral surfaces of an outer/inner casing, and further providing an O ring and a backup ring in order to seal an intermediate stage emerging chamber and a de...
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JPH08144997A |
PURPOSE: To provide a full circumferential flow type pump in which deformation of a liner portion of a pump casing is suppressed, there is no need for increasing thickness of plate more than necessary, the plate having proper thickness f...
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JPH08135556A |
PURPOSE: To prevent the damage to a pump reversing water turbine to which a trouble occurs and to relax the limit of the effective head of pump reversing water turbine type power generating equipment by preventing losing of an operation ...
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JPH08105396A |
PURPOSE: To provide a vertical shaft multiple stage centrifugal pump with high efficiency which is small in height and small in installation area. CONSTITUTION: A main shaft 3 of a motor is directly connected to an upper end of an impell...
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JPH0816478B2 |
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JPH0828483A |
PURPOSE: To prevent thermal bending of a main shaft by preventing the convection of fluid inside a thermal sleeve, and uniformizing the temperature distribution in the circumferential direction inside the thermal sleeve. CONSTITUTION: A ...
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JPH082487A |
PURPOSE: To always cruise at high speed with water resistance kept little regardless of the conditions of the sea by extending and shortening a hydraulic cylinder for opening and closing a rectangular opening formed from the lower end of...
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JPH07332274A |
PURPOSE: To aim at standardization by enabling the use of the same shaft without changing shaft end length even wit,h a change in the number of stages. CONSTITUTION: In a pump leg 1, a discharge opening 1c and a casing /cover 1x are inte...
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JPH07117056B2 |
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JPH07117283B2 |
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JPH07317689A |
PURPOSE: To resolve the occurrence of a water leak accident by specifying the pressure of the air enclosed in a pump at the air intake port of a cover section in the drain pump for continuously discharging the drain generated from an air...
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JPH07317696A |
PURPOSE: To provide a mixing pump effectively mixing a liquid and a gas or liquids together and feeding the mixed fluid at a low cost. CONSTITUTION: This mixing pump is provided with one or more liquid feed pump sections 20 and mixing pu...
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