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7513755 |
Submerged motor and pump assembly
An in-line motor and pump assembly is supported at the bottom of a fuel storage tank by a pipe and an internal concentric conduit for housing electrical conductors extending therewithin to the...
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7481619 |
Extended venturi fan ring
A high efficiency, low-noise fan ring for use with a heat exchanger having an annular fan ring body attached to a coaxial mounting ring. The fan ring body extends in a substantially perpendicular...
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7478993 |
Cooling fan using Coanda effect to reduce recirculation
A cooling fan for an engine in a vehicle. Ordinarily, a fan rotates within a shroud, which surrounds the fan. Leakage can occur between the tips of the fan blades and the shroud, wherein fan...
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7473075 |
Liquid pump
A liquid pump ( 100 ) includes a top cover ( 40 ), a back plate ( 50 ), and a spacing member ( 60 ). The spacing member is sandwiched between the top cover and the back plate, thereby dividing an...
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7374399 |
Inline fan housing assemblies
The present invention relates to an inline fan housing assembly adaptable for connection with conduits of various diameters. The inline fan housing assembly comprises a connector collar for...
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7331759 |
Drying fan
A drying fan, including for water damage restoration, including for drying a room corner extending axially along an interface between a wall and a floor, has a shrouded housing having an axial flow...
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7331756 |
Axial-flow fan unit and heat-emitting element cooling apparatus
An axial-flow fan unit that produces less noise is provided. Blades 19 are exposed from a venturi 29 . The shape of each of the blades 19 is so defined that a space formed between at least an...
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7284948 |
Turbine with tube arrangement and method of preventing detachment of a fluid flow
Turbine system including a turbine and a tubular arrangement having an exit opening. The tubular arrangement is arranged on a downstream side of the turbine. At least one flow controlling device at...
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7249931 |
High efficiency air conditioner condenser fan with performance enhancements
Twisted blades for outdoor air conditioner condensers and heat pumps that improve airflow efficiency to minimize operating power requirements. The blades can run at approximately 850 rpm to produce...
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7201562 |
Fan with central intake
A fan with central intake comprises a fan frame, a fan wheel and a fan motor. The fan frame provides a hub seat with an annular spacing for fluid flowing through and a joining part at the center of...
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7150599 |
Frame structure for fan unit
A fan frame ( 10 ) for encircling an impeller ( 20 ) of a fan unit is disclosed. The fan frame includes a base ( 11 ) and a plurality of sidewalls ( 12 ) extending from the base. The base defines a...
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7134835 |
Process for manufacturing a stator for vacuum pump and stator obtained thereby
A process for manufacturing stators of vacuum pumps, and stators obtained thereby, wherein a plurality of stator discs or rings are formed, preferably by pressing, and then stator discs or rings...
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7118344 |
Wind power plant for generating energy
A wind power system ( 1 ) for generating power is proposed, comprising a rotor which is axially flowed through, is rotatably held on a shaft ( 2 ) and is provided with blades ( 3 ), as well as a...
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7029229 |
Axial flow fan
An axial flow fan of high efficiency and low noise level is provided. The fan includes a motor, an impeller having a plurality of blades around a hub fitted to the motor, and a fan casing having an...
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7018169 |
Fluid flow control apparatus
A device for controlling a fluid flow is disclosed. The device includes at least two fluid flow drivers, a plenum disposed to receive a fluid flow from the at least two drivers, and a baffle...
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6877953 |
Gas turbine
A gas turbine with a compressor area has a rotor shaft 2 to carry rotor blades 1 and a casing 4 to carry stator vanes 3, with the related rotor blades 1 and stator vanes 3 forming an...
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6866479 |
Exhaust diffuser for axial-flow turbine
An axial-flow turbine has an exhaust diffuser including a hub-side tube and a tip-side tube. In the exhaust diffuser, front struts and rear struts are placed to cross a flow of working fluid. A...
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6827547 |
Engine cooling fan having improved airflow characteristics
A stator and diffuser assembly is introduced between an engine cooling fan and engine. The stator acts increase the static efficiency per unit airflow of the axial fan by reducing the rotational...
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6814542 |
Blower especially for ventilating electronic devices
The invention relates to a blower, especially for a personal computer. The air of the invention is to reduce the noise produces by such a blower. To this end, the inventive blower comprises: a) a...
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6802691 |
Maintainable compressor stability bleed system
The present invention relates to an axial flow rotary machine and to a maintainable compressor bleed system therefore. The axial flow rotary machine comprises a primary flow path for a working...
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6776578 |
Winglet-enhanced fan
Small winglets placed at the outer end of each fan blade substantially reduce the vortices created in conventional fans by the pressure differential between the low pressure and high pressure sides...
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6736594 |
Axial-flow type hydraulic machine
In an axial flow hydraulic machine, a plural number of grooves 5 are formed on an inner surface of a casing, directed into a pressure gradient direction, for connecting between an inlet side of...
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6705829 |
Cover for LP first stage diaphragm and method for improving inflow to first stage diaphragm
A cover is provided to conceal the forward-facing step defined by the protrusion of the first stage diaphragm into the LP inlet. The cover presents a smoothly contoured surface to the flowing fluid...
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6692225 |
Liquid pressing device
A liquid pressing device includes mainly a power device consisting of a motor with a spindle, an upper cap on the motor and a lower cap under the motor, a shell for containing the power device, a...
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6565315 |
Rotation device
A rotation device including first and second passages and a rotor shaft with a rotor which connects onto the first passage with a third passage which branches into rotor channels from the third to...
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6558116 |
Gas-cooled machine, in particular a turbo-generator
A turbo-generator comprising a shaft, on which is positioned an axial ventilator, a cover that divides an inflow chamber for a cooling gas transported by the axial ventilator from an outflow...
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6540482 |
Turbo-type machines
A turbo-type machine, comprising a casing 2 storing an impeller within an inside thereof, and a plural number of grooves formed on an inner surface of the casing in a direction of pressure...
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6533546 |
Low-pressure steam turbine with multi-channel diffuser
An axial/radial three-channel diffuser is provided with two guide vanes for dividing the diffuser into three partial diffusers that are distributed so that the distribution of the surface area over...
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6517315 |
Enhanced performance fan with the use of winglets
Small winglets placed at the outer end of each fan blade substantially reduce the vortices created in conventional fans by the pressure differential between the low pressure and high pressure sides...
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6375418 |
Heat sink-equipped cooling apparatus
A heat sink-equipped cooling apparatus capable of increasing a size of an air discharge port as compared with a prior art. A fan unit is mounted on a heat sink. The heat sink includes a base formed...
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6338609 |
Convex compressor casing
A compressor casing includes an axially convex inner surface for surrounding a row of rotor blades with radial gaps therebetween. The tip of the blades complement the casing contour for reducing...
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6312216 |
Multiphase turbo machine for improved phase mixing and associated method
The invention is a device and method which varies the pressure of a multiphase fluid comprising at least one liquid phase and at least one gaseous phase. The device comprises a housing, a hub, a...
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6293753 |
Air moving apparatus and method of optimizing performance thereof
An air moving device in the form of an axial flow fan is provided that is adapted for use in substantially enclosed high-density electrical systems, e.g. computers and the like. The fan includes an...
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6227800 |
Bay cooled turbine casing
A turbine casing supports a row of nozzle vanes through which are flowable hot combustion gases. A baffle surrounds the casing to define a cooling duct. A nacelle surrounds the turbine casing to...
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6168373 |
Dual hydroturbine unit
An environmentally non-intrusive multiple turbine unit for adjustable deployment in water. The turbines are captured in a shroud having an integrally formed augmentor ring and ballasting member to...
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6139267 |
Fluid machine
A fluid machine comprising a fluid storage tank (1), provided with an inlet (2) and at least with one outlet nozzle (3), and in the area of the outlet nozzle (3) there is mounted, on a holding...
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5951246 |
Exhaust system for marine gas turbine
An exhaust system for a marine gas turbine may suppress a reduction of an efficiency even if a space therefor is small. In the exhaust system for a marine gas turbine, in which an end portion of an...
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5944482 |
Front-removable bearing housing for vertical turbine pump
A bearing housing in a bowl of a vertical turbine pump for a lower bearing of a rotatable pump shaft on which an impeller is mounted includes a separable hollow substantially cylindrical housing...
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5785495 |
Fiber-repellant centrifugal pump
A centrifugal pump having a housing which includes an impeller mounted in the housing. At least one guide vane is mounted between a hub and the housing and in-line with the impeller. The guide vane...
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5727381 |
Duct flow control system
A duct fixed to a vehicle propelled through an ambient fluid medium is innally provided with spaced channel passages from which the fluid medium is ejected under pressure tangentially of local duct...
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5679037 |
Stationary screw induction system
A stationary screw induction system for improving performance of a watercraft has a cylindrical housing with a first closed end and a second open end. A housing inlet opening is disposed within the...
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5597245 |
Cavitation suppressing ducted propeller system
This invention relates to a device for use with a ducted propeller system r suppressing gap cavitation between a moving rotor tip and duct wall and more particularly to means for supplying fluid to...
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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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5266009 |
Impeller structure for water jet propelled boat
A water jet propelled boat is equipped with a water intake opening, a water jet outlet, and with a mixed flow type impeller, where the above mentioned water intake opening and the above mentioned...
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5222863 |
Turbine multisection hydrojet drive
A hydrojet turbine drive 10 is described with a first turbine assembly 40 including a first compressor rotor 46 with blades 48 having a water pitch for drawing water into the turbine drive 10. The...
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5017087 |
Multi-functional rotary hydraulic machine systems
Multi-functional rotary hydraulic machines and machine systems combining a common rotary drive system with a family of mechanically interchangeable rotary hydraulic machine units having different...
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4936803 |
Propeller assembly
A boat or ship's propeller system utilizes a rotary propeller comprised of a plurality of short blade elements arranged annularly and supported from a central propeller shaft by spokes, there being...
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4804312 |
Flow guide for ship propellers
This arrangement concerns a flow guide surface for ship propellers, at least for twin propellers, the propellers being mounted by means of propeller brackets. It is provided for to arrange, at...
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4789302 |
Propeller shroud
A propeller shroud or nozzle, made with airfoil section of high lift to drag ratio, increases thrust, speed and efficiency of a fixed or controllable pitch propeller operating inside the shroud....
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4776755 |
Shrouded propeller
A shrouded propeller for operation in ice-filled waters, which arrangement comprises a propeller and a nozzle encirculating the propeller, which propeller arrangement comprises an ice crusher...
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