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8113791 |
Integrated hydrogen recirculation blower for fuel cell vehicle
A hydrogen recirculation blower for a fuel cell vehicle includes an ejector integrated with a housing of the blower. An integrated hydrogen recirculation blower for a fuel cell vehicle includes: a...
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8047807 |
Vehicle transmission with jet pump
The present disclosure relates to a vehicle transmission with jet pump. The jet pump includes a hydraulic control system that has a nozzle fitted between a first and second housing. The nozzle is...
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7997335 |
Jet pump with a centrifugal pump
A seafloor pump assembly is installed within a caisson that has an upper end for receiving a flow of fluid containing gas and liquid. The pump assembly is enclosed within a shroud that has an upper...
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7452191 |
Vacuum pump and method for generating sub-pressure
According to the invention, a vacuum pump is disclosed comprising a screw-rotor pump having a compression section (8) and an expansion section (7), and wherein a discharge (10) from the compression...
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7443671 |
Axial duct cooling fan
A cooling fan comprising a housing that connects to a chassis that is operable to support an electronic component. An axial duct runs through the housing. A blade assembly is rotatably disposed...
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7192257 |
Jet pump for boosting pressure at an inlet supplied from a sump and second fluid source
The automatic transmission for motor vehicles includes a positive displacement pump, a sump hydraulically connected by a passage to the pump inlet, a line pressure control valve having a high...
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7048514 |
Downhole jet unit for testing and completing wells
The invention relates to pumping engineering, mainly to downhole jet production units. The inventive downhole jet unit comprises a packer, a pipe column and a jet pump. An active nozzle and a...
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6877961 |
Vane pump with a bypass valve and passage arrangement for equalizing excess fluid flow through dual suction passages
In a housing of a pump apparatus having a flow control valve to discharge a part of excess fluid in a deviated slanting way to a bypass pass 11, a pair of suction paths 19, 19′ is formed opposite t...
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6857859 |
Gasket for jet pump assembly of a fuel supply unit
A fuel supply unit 10 includes a fuel reservoir 22 for holding fuel, a fuel pump 18 within the reservoir for pumping fuel from the reservoir, a jet pump assembly 16 within the reservoir for drawing...
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6672828 |
Vacuum pump
A turbomolecular vacuum pump (5) comprises a first pumping section (1) having pumping stages with bladed rotor discs, a second pumping section (2) having pumping stages with smooth rotor discs, a...
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6250889 |
Pump with improved priming
A pump assembly having a pump with an inlet duct and an outlet duct, the inlet duct including an air separation chamber, which is communicable with a vent of an ejector head in which is provided a...
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6155793 |
Recessed fuel pump module
A fuel pump module constructed to be disposed in a vehicle fuel tank has a primary fuel pump with a fuel inlet disposed adjacent the bottom of the module and a fuel outlet which delivers...
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5806560 |
Aircraft fuel transfer pump with auxiliary fuel line scavenge pump
An improved fuel transfer pump is provided for relatively high flow transfer of fuel from one aircraft to another during an inflight refueling procedure, wherein the fuel transfer pump includes a...
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5551841 |
Axial-flow fan
An axial-flow fan includes a cylindrical casing having an inlet port at one axial end and an outlet port at the other axial end, and in which a motor for driving vanes is mounted. The casing is...
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5458467 |
Jet pump and method of operation thereof
A pump (10) for providing water from a source to a remote location includes a casing (11) which receives the water through an inlet port (22) which is provided to the remote location through a...
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5454532 |
Aircraft deicer pumping system
In an aircraft deicer comprising a reservoir and a pump connected to the reservoir through a first conduit, the pump operating to circulate a fluid contained within the reservoir throughout at...
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5451139 |
Self priming centrifugal
A self-priming centrifugal pump includes a cylindrical metal plate case forming a pressure chamber and provided with a suction inlet and a pressure outlet. The pressure chamber has a bladed...
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5395514 |
Ultrafiltration system and assembly
A portable ultrafiltration device is disclosed comprising a centrifugal pump, membrane filter and an eductor means, arranged at or before the inlet of the centrifugal pump in a recycle loop from...
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5330475 |
Modular fuel sender for motor vehicle
A modular fuel sender including a reservoir in a fuel tank of a motor vehicle, an electric fuel pump in the reservoir, and a jet pump for aspirating fuel into the reservoir. The electric fuel pump...
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5312231 |
Slurry conveyor device
The objects of the invention are to prevent the backflow of slurry by first enclosing it in a closed space and then using air to force it along a discharge channel, and at the same time to ensure...
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5145314 |
Low drag pitot pump and method of operating same
A method of operating a pitot pump that pressurizes a first fluid of a first viscosity and first density wherein the pump includes a rotatable housing and a stationary probe disposed within the...
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5088896 |
Jet pump with rotatable venturi cartridge
A jet pump having a rotatable venturi cartridge to permit any of several different sized venturi tubes to be aligned with a nozzle in the pump casing. A knob is provided on the pump casing to...
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4883410 |
Fuel supply systems
A liquid fuel pump arrangement for delivering fuel to an engine comprises a liquid-ring pump including a motor driven bladed impeller rotor which is located eccentrically within a cylindrical bore...
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4877377 |
Rotary pump system
A rotary pump system for pumping a liquid which is delivered under pressure from a backing pump 8, in which a rotary pump 1 has a pump body which is required to be drained of liquid at times when...
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4864825 |
Suction type turbo-supercharger
A suction type turbo-supercharger (6) is driven by highly negative pressure suction air produced by a negative pressure generator (4) which accelerates the exhaust gas stream of an internal...
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4820131 |
Venturi nozzle assembly construction in a shallow well pump casing
A shallow well centrifugal pump having a casing forming a fluid flow cavity and having a fluid intake end with a threadless bore and a suction inlet communicating with the cavity through the bore,...
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4799863 |
Vacuum flow device
A vacuum device comprising a by-pass fan pump, a conduit connecting the inlet of the pump to a member in which pressure is to be reduced and a flow passage formation enabling a stream of air to...
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4767281 |
Centrifugal pump system with inlet reservoir
Pump system includes a centrifugal pump having an inlet reservoir connected to the upstream end thereof for initially receiving the vapor/liquid mixture entering the system to allow air or vapor to...
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4704070 |
Fuel system bubble dissipation device
A fuel system bubble dissipation device wherein fuel is delivered through a fuel line from a fuel tank to an engine. The device includes an ejector having a casing with a fuel flow passage...
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4693085 |
Device for increasing the rotational speed of an exhaust gas turbo-charger on an internal combustion engine
The invention concerns a device for increasing the rotational speed of an exhaust gas turbo-charger on an internal combustion engine. The compressor casing of the exhaust gas turbo-charger is...
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4627792 |
Rotating flow pump with a feed pump unit formed as an ejector
A rotating flow pump such as a centrifugal pump is provided with a feed pump unit formed as an ejector. The feed pump unit comprises an inlet portion, a nozzle, and a diffuser arranged in...
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4623302 |
Arrangement for facilitating the start-up of not self-priming centrifugal pumps
Arrangement for facilitating the start-up of not self-priming centrifugal mps for the pumping of radioactive liquids in a nuclear fuel reprocessing plant wherein radioactive liquid is pumped from a...
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4609328 |
Method and apparatus for total energy systems
Combustion jet pumps ingest waste heat gases from power plant engines and boilers to boost their pressure for the ultimate low temperature utilization of the captured heat for heating homes,...
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4606703 |
Fluidic pumping systems with control means responsive to liquid level
A fluidic pumping system comprises a reverse flow diverter positioned below the level of a liquid to be pumped and inserted between a charge vessel and a delivery pipe. A control system including...
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4431377 |
Compressor with pump recycling for isotopic separation through gaseous scattering
A compressor which compresses a principal flow at low pressure and recompses a secondary flow at medium pressure to deliver a common flow at high pressure. The compressor includes, in addition to...
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4422829 |
Sump drain system
A drain system for a sump, including an electrically powered sump pump normally operable in response to the water level in the sump to drain the sump when the level reaches a predetermined point,...
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4381175 |
Jet electric pump
A pump assembly for limited production wells comprises an electric motor driven centrifugal pump having a controlled amount of recirculation through a jet pump. The recirculated fluid is the power...
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4365938 |
Modular low head high volume water pump and aquaculture system
A water pump system having a float and underwater intake with discharge into an increasingly sized series of consecutive pipes, open to the water body, for entraining additional water with that...
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4362474 |
Centrifugal fuel pump with automatically switched jet injection
A centrifugal pump for pumping fuel to a gas turbine engine is equipped with a start injector and a run injector. The pump has a single fuel output nozzle from which fuel goes to the engine. It...
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4294573 |
Submersible electrically powered centrifugal and jet pump assembly
A petroleum well has a plurality of centrifugal pump stages, a jet pump stage, and an electrical drive motor. A recirculated portion of the output from high pressure stages of the centrifugal pump...
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4249864 |
Centrifugal pump system for water desalinization
A centrifugal pump for producing a vacuum, the pump recirculating fluid through a vacuum chamber into which a vacuum line opens, the flow of water across the chamber carrying air or gas therewith...
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4142839 |
Centrifugal pump for high V/L performance
The centrifugal pump comprises a unique combination of a centrifugal impeller, inducer and jet pump having the capability of handling incoming fluids with a minimum V/L ratio of 1.0. The motive...
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4060341 |
Automatic auxiliary jet sump pump
An auxiliary jet sump pump, particularly for use with a main conventional electrical sump pump or the like, as a substitute pump in the event the main pump is inoperative, or as a supplemental pump...
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4045522 |
Animal waste treatment system
Provided is a combined aerating and agitating pump having an adjustable air vent for establishing an optimum level of aeration of a slurry in a farm animal waste treatment system to minimize the...
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4037991 |
Fluid-flow assisting devices
An inlet line connected to the inlet of a hydraulic pump includes a jet pump having a Venturi nozzle though which the aspired liquid is passed, and into which a coaxial jet of liquid under higher...
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3981626 |
Down hole pump and method of deep well pumping
A down hole pump and, more particularly, a turbine driven geothermal down hole pump has a housing insertable in a well casing to a depth wherein geothermal liquid is exposed to the inlet of the...
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3963376 |
Automatic water powered sump drainer
An automatic water powered sump drainer comprises valve means, a float assembly, a venturi, means connecting one side of the sump drainer to a water supply, and means connecting the other side of...
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3943329 |
Hair dryer with safety guard air outlet nozzle
A hair dryer includes a housing defining an air inlet and an air outlet and blower means within the housing for drawing a stream of air into the inlet, through the dryer housing and forcing the air...
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3894813 |
Aircraft fuel supply system having a dual stream tow-phase fluid pump
An aircraft fuel supply system has a two-stage fuel pump having a first centrifugal booster stage receiving a main inlet flow stream and a second positive displacement pumping stage and is combined...
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3817659 |
PITOT PUMP WITH JET PUMP CHARGING SYSTEM
A pitot pump having means built into the pump for reducing the net positive suction head otherwise required for such a pump, and increasing the pump discharge for a given such suction head.
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