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Match
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Document |
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7445429 |
Crossover two-phase flow pump
A hydrocarbon well pump has impellers and diffusers configured with inner and outer sections. The central section contains impeller passages configured for pumping liquid. The outer section...
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7419354 |
Centrifugal pump with screw pump accelerator
Method and apparatus for pumping drilling fluid (mud) containing drill cuttings, comprising a centrifugal pump with screw pump accelerator. The screw pump creating positive pressure for centrifugal...
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6923621 |
Diffuser for a turbo pump
To suppress degradation of the pump efficiency while preventing the diffuser from stalling on a turbo pump Opening 48 is provided at a specified position in the cord length direction of vane 42...
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6913444 |
Thin-form centrifugal fan
A small, lightweight and inexpensive thin-form centrifugal fan having a first moving blade; a second moving blade; and a stationary blade disposed between the first moving blade and the second...
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6634856 |
Integrally formed stamped sheet-metal blades having 3D structure
Integrally formed stamping sheet-metal blades having 3D structure for impeller or diffuser of a centrifugal pump or blower includes at least two integral forming blade or vane members. Each blade...
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6481961 |
Stage for a centrifugal submersible pump
A stage for a centrifugal submersible pump has a base, a connecting plate and an impeller. The base has multiple ribs integrally formed in the base. The connecting plate is securely attached to one...
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6446457 |
Fan and tunnel with fans
A intended in particular for equipping a tunnel for refrigeration of products such as food products, wherein this tunnel has a gaseous current flowing through it. The fan includes at least one pair...
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6162015 |
Centrifugal type fluid machine
A highly efficient centrifugal type fluid machine is configured so that the vane outlet angle or the vane outlet diameter at a side plate end (4a) of a single stage or a plurality of stages of a...
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6106224 |
Downthrust pads for submersible centrifugal pumps
A submersible centrifugal pump is claimed which includes an inner downthrust washer for receiving the downthrust load from the upward movement of the produced fluid, and an outer sealing washer,...
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5562405 |
Multistage axial flow pumps and compressors
A multistage axial flow pump or compressor comprises at least one stage (10) including a rotor (16) and a stator (20). The rotor (16) is arranged to impart whirl in one direction, while the stator...
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5385445 |
Centrifugal pump
A multi-stage open impeller centrifugal pump, primarily used for charging service. The pump uses multivane, 27 vanes, impellers, mounted on a single shaft. Rotor parts are a loose fit to the pump...
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5383764 |
Diffusor pump having diffusor blades
The present invention provides a novel diffusor for a diffusor pump. The diffusor comprises a body having a side portion and a plurality of blades placed on the side portion of the body so as to be...
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5344285 |
Centrifugal pump with monolithic diffuser and return vane channel ring member
A segmental ring centrifugal pump wherein the channel ring and the diffuser/crossover hydraulics are formed as a single monolithic casting. By casting the diffuser and the channel ring as a unit,...
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5330318 |
Centrifugal pump with an improved axial diffusor
The invention provides a centrifugal pump having an axial diffusor with plural blades having such a specific incident angle as to prevent appearance of revolving and stall of a treating liquid. An...
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5286164 |
Radial blower with blower wheel rotating in spiral housing
A radial blower for producing an air stream which is supplied as a secondary air to a waste gas stream of an internal combustion engine has a spiral housing having a substantially tangentially...
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4938661 |
Multistage centrifugal compressor
A multistage centrifugal compressor has a shaft rotatable on an axis and a plurality of centrifugal impellers fixed on the shaft and having outlets at outer peripheries thereof. Conduits connect...
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4865519 |
Oil submersible pump
A multi-stage centrifugal pump mainly used for oil extraction, which incls two essential components, namely, a rotational impeller comprising several blades and a stationary diffuser. The shapes of...
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4859144 |
Fan stage configuration
The invention comprehends an inter or after stage of a fan system in which the stage has curvilinear spiralling guidance blades and integral blade tips angled in an axial direction to provide...
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4564334 |
Guide wheel for multistage centrifugal pumps
The follow-up guide wheels of a multistage centrifugal pump define flow paths whose cross-sectional area increases exclusively in the axial direction of the respective stages, or axially and...
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4293288 |
Submersible pump housing
A housing of a single material of construction for a submersible pump adapted to integrally contain the usual diffuser stack and a mounting bracket for the pump motor. The housing is provided...
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4135852 |
Centrifugal slurry pump and method
A multiple stage centrifugal pump for the handling of slurries. At each stage the slurry enters and is centrifugally discharged from an unobstructed chamber in which a vortex is created by an...
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3975113 |
Centrifugal pump
A rotary centrifugal pump having an axial inlet and discharge in a casing together with an impeller having liquid impelling vanes on both surfaces thereof with the impeller having central openings...
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3963370 |
Laundry machine blower mechanism
A combinaton washer-dryer laundry machine having a washing, extraction and drying operations. There is included in the machine a rotatable drum for tumbling the clothes, a liquid pump for removing...
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3861825 |
MULTISTAGE PUMP AND MANUFACTURING METHOD
A multistage centrifugal pump having a divided forged and formed housing with a generally round and elongated pumping chamber defined within the housing, an integral multistage impeller assembly...
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3788764 |
MULTI-STAGE CENTRIFUGAL PUMP WITH MEANS FOR PULSE CANCELLATION
A multi-stage, double volute, centrifugal pump has an intermediate discharge and a final discharge constructed so that the pulses in the fluid at the discharge stages created by the impeller vanes...
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3779668 |
STAGE FOR A CENTRIFUGAL PUMP
Disclosed is an improved stage adaptable for use in multistage centrifugal pumps which find their primary use in moving liquids from deep wells and the like. The pump can include a motor, rotatable...
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3612716 |
MULTISTAGE CENTRIFUGAL PUMP
Several embodiments of pumps are shown which are advantageous in pumping liquids containing abrasives. FIGS. 1-4 show a centrifugal pump with floating stages. Each stage has a rubber journal and a...
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3477384 |
SUBMERSIBLE MULTI-STAGE DIFFUSER TYPE PUMP
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3440968 |
CENTRIFUGAL PUMP
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3438329 |
MULTISTAGE HYDRAULIC PUMP HAVING IMPROVED DIFFUSER MEANS
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3437045 |
SUBMERSIBLE PUMP
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3375789 |
Split case submersible pump
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3363576 |
High pressure pump with drive end suction side
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3313476 |
Centrifugal fan having substantially reduced internal air recirculation
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3306574 |
Rotary fluid flow machine
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3305165 |
Elastic fluid compressor
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3303996 |
Fan having annular frustro-conical diffuser space
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3298318 |
Submersible motor-pump construction
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3289923 |
Multi-stage pump
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3288074 |
Submersible pump
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3286984 |
Rotary turbine
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3279384 |
Rotary machine
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3263909 |
High-efficiency fan assembly for vacuum cleaner
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3227089 |
Centrifugal pump
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3224667 |
Multi-stage air blower
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3188967 |
Fluid pressure booster
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3154019 |
Shaftless submersible pump
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3150598 |
Combination deep well and portable irrigation pump
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3145913 |
Multi-stage turbo-compressors
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3131877 |
Pump
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