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7591636 |
Negative pressure supply apparatus
When coils of a vacuum pump unit are excited by energization, a piston equipped with magnets reciprocates in a cylinder. Thus, air is sucked in from an outlet passage of a diffuser of an ejector,...
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7497666 |
Pressure exchange ejector
A novel pressure-exchange ejector is disclosed whereby a high energy primary fluid transports and pressurizes a lower energy secondary fluid through direct fluid-fluid momentum exchange. The...
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7056103 |
Method and apparatus for cooling turbomachinery components
An apparatus and method for cooling components associated with turbomachinery by means of one or more venturis placed in the intake flow of air into the compressor with an air inlet upstream of the...
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6817837 |
Jet pump with recirculating motive fluid
A recirculating liquid jet pump for moving a wide variety of materials is described. The pump is preferably equipped with an intermediate collection reservoir enabling the placement of material to...
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6685439 |
Hydraulic jet pump
A hydraulic jet pump comprising: a nozzle housing; a nozzle member disposed within said nozzle housing and including an inlet aperture communicating through a jet nozzle with a mixing chamber along...
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6471489 |
Supersonic 4-way self-compensating fluid entrainment device
A self-compensating, energy saving heat transfer unit to provide an efficient means to transfer energy from steam to water in a central heating system. The steam enters a mixing chamber and creates...
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6450775 |
Jet pumps and methods employing the same
A liquid jet pump for moving a wide variety of material is described. The liquid jet pump is comprised of a nozzle assembly and a target tube, and defines a suction chamber. The nozzle assembly is...
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6394760 |
Vacuum ejector pump
An ejector includes two or more nozzles arranged in series. A stream of air fed at high velocity through the nozzle is used to create a negative pressure in an outer, surrounding space. The...
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6171068 |
Vacuum pump
A hybrid vacuum pump comprising an ejector type compressed air-operated vacuum pump. Such pump comprises a housing having an inlet for compressed air, a second inlet connectable to the enclosure to...
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6162021 |
System for pumping liquids using a jet pump and a phase separator
A device for co-mingling fluids from separate sources comprises a jet pump having high and low pressure fluid inlets, and a main outlet for discharging a mixture of the two fluids. A phase...
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5993167 |
Apparatus and method for energy conversion of pressurized fluid
A method of and apparatus for momentum exchange of a pressurized fluid including a jet nozzle for discharging a jet of pressurized fluid produced by a pressure pump, a first inlet opening provided...
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5931643 |
Fluid jet ejector with primary fluid recirculation means
A fluid jet ejector and ejection method wherein a plurality of high velocity jet streams of a primary fluid are discharged through a vacuum chamber into a convergent-divergent diffuser or nozzle to...
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5810563 |
Ejector pump having flow directing profiles
An ejector pump for the transport of materials or mixtures of materials capable of flowing with the aid of a fluid driving medium is provided. The ejector pump includes at least one flow management...
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5683227 |
Multistage ejector assembly
A multistage ejector assembly which can be assembled in an extremely facilitated manner, at a low cost, and while avoiding from high precision assembling work for a plural number of nozzles and...
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5593284 |
Ejector pump having turbulence reducing flow directing profiles
An ejector pump for the transport of materials or mixtures of materials capable of flowing with the aid of a fluid driving medium is provided. The ejector pump includes at least one flow management...
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5584668 |
Multistage ejector pump for radial flow
A multi-stage ejector pump for suction or for moving materials with the help of a working fluid within one housing is provided. The pump is designed for radial flow and includes at least one inlet...
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5478209 |
Jet barrel and hose fitting insert for a jet pump
A jet barrel and hose fitting insert are provided for a jet pump that supplies coating powder to a spray gun. The insert reduces the likelihood of impact fusion in the barrel and fitting. The...
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5417550 |
Submersed jet pump for generating a stream of water
An apparatus for generating a stream in a body of water has at least one cylinder installed under water, and a water-jet pump housed in the cylinder. The pump draws water in through one end of the...
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5309736 |
Hydrocarbon fluid, ejector refrigeration system
A refrigeration system particularly suitable for an automobile air conditioning system is disclosed. The system includes an ejector to raise the pressure of the working fluid to the condenser...
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5228839 |
Multistage ejector pump
An ejector pump having a plurality of longitudinally aligned chambers, each chamber including a pair of opposed end walls, at least two of the end walls having a nozzle and a one-way valve, with a...
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4960364 |
Vacuum ejector device
The present invention relates summarily to a mult-ejector device with at least one ejector part (2) including at least one array of ejector jets (18, 19, 20) placed one after the other in the...
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4938665 |
Jet pump
A jet pump for the suction and/or conveyance of flowable materials or mixtures of materials by means of a liquid or gaseous propellant medium consists of a housing with inlets (28, 64) as well as a...
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4880358 |
Ultra-high vacuum force, low air consumption pumps
Air-operated vacuum pump assemblies are disclosed which provide a maximum vacuum force and a large vacuum flow per volume of air consumption. The present venturi pump assemblies comprise one or...
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4850752 |
Tool for stone-blowing
There is provided a tool for stone-blowing comprising upper and lower mating parts (13, 14), the upper part being tubular and the lower part being mainly of channel section and having its lower end...
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4807814 |
Pneumatic powder ejector
The invention is in a pneumatic powder ejector comprising a suction stage and an injection stage. The suction stage includes a suction chamber (16), a venturi (14) communicating a primary gas to...
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4781537 |
Variable flow rate system for hydrokinetic amplifier
A hydrokinetic amplifier 10 having a primary liquid input formed into a primary liquid jet surrounded by a motivating vapor that transfers vapor momentum to the primary liquid jet and accelerates...
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4759691 |
Compressed air driven vacuum pump assembly
Compressed air driven vacuum pump assembly wherein the energy contained in compressed air is used to create a vacuum flow within a housing unit. Preferably, the modular housing unit includes a...
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4748826 |
Refrigerating or heat pump and jet pump for use therein
A refrigerator or heat pump with a jet pump (1) as the compressor, in which the evaporator (2) of the heat-pump or refrigerator circuit is incorporated in the jet pump (1). In the simplest case,...
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4725201 |
Automatic starting system for hydrokinetic amplifier
Automatic starting of a hydrokinetic amplifier 10 is accomplished by: an overflow pilot valve 32 responsive to output pressure for opening an overflow line 30 when output pressure drops below a...
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4718835 |
Mining apparatus and jet pump therefor
This disclosure relates to deep sea mining apparatus, comprising a relatively straight lift pipe, the lift pipe being adapted to extend substantially vertically from the floor of a body of water...
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4696625 |
Ejector and method of fabrication
An ejector device consists of a number of ejector units each of which includes a suction chamber. The individual units are positioned in a common housing. For making the ejector the housing is...
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4673335 |
Gas compression with hydrokinetic amplifier
A hydrokinetic amplifier 10 that combines a liquid and vapor to produce an amplified liquid output pressure is used for compressing or liquifying gas by admitting gas to be compressed into a region...
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4634560 |
Aspirator pump and metering device
An apparatus is disclosed for controlling flow rates of a primary fluid including aspirating, mixing, and metering the primary fluid with a secondary fluid. In one aspect, the invention includes...
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4566862 |
Fluid apparatus and methods, as for inflating inflatable structures
In a system for inflating airslides and the like, the pressure of the primary gas supplied to an ejector is controlled so as to maintain a constant mass flow rate into the airslide over its...
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4565499 |
Ejector
An ejector device having large evacuation capacity comprises a cylindrical body the cylinder face of which is subdivided into ring shaped chambers which extend around and are partitioned off from...
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4551042 |
Transfer system for fish and similar articles
Pumping efficiency for fish and other articles has been achieved far beyond expectations. By extracting water and adding air at a location in the pumping system higher than the initial air...
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4466778 |
Ejector device
An ejector device which has at least two ejectors formed by a corresponding number of axially aligned nozzles of increasing cross section in the direction of flow. The device is formed as a series...
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4397226 |
Method and device for extracting contaminated air by suction
In a method of removing contaminated air by suction, ejector air is blown towards a tangentially directed inlet slot (3) in a cylinder (2a) comprising part of an air extractor (1). The contaminated...
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4395202 |
Multi-ejector
The present invention relates briefly to an improved multi-ejector having at least one set of ejector nozzles (12, 13, 14, 15) arranged successively for evacuating of successively arranged chambers...
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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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4184417 |
Plume elimination mechanism
A discharge apparatus for dispersing exhaust gases discharged into the atmosphere and eliminating the steam plume, is disclosed. A plurality of conical diffusing elements are supported in spaced...
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4165571 |
Sea sled with jet pump for underwater trenching and slurry removal
The sea sled includes a pair of pontoons mounting depending rollers for straddling a pipeline disposed on the sea bottom. Water jets fluidize the sea bottom to form a trench in which the pipeline...
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4075296 |
Idle speed needle screw for carburetors
This invention relates to an idle speed adjustment needle screw for carburetors for internal combustion motors, and more particularly to an improved tubular screw and preferably of three...
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4048798 |
Suction power-driven air turbine
An engine which includes a combustion chamber and a work function chamber enclosing the combustion chamber. A burner means is located in the combustion chamber for combustion. A rotatable turbine...
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4002110 |
Automatic obturator for a gasodynamic ventilation device
Gasodynamic ventilation device consisting of a prime ejection channel provided with a nozzle for the introduction of the operative fluid and a secondary ejection channel mounted coaxially with a...
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3968538 |
Double suction unit
An apparatus for removing both cut threads and trimmed edges from the working area of a sewing machine with a unit having a first air passage coupled to the area for removing trimmed edges, a...
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3959864 |
Method for producing an ejector device
Method for producing an ejector device including forming a profile rail, drilling holes in the rail to receive ejector nozzles therein and inserting the nozzles in the holes, closing the ends of...
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3877283 |
WELD BEAD-REDUCING APPARATUS
Apparatus for reducing the internal weld bead of welded tubing. An anvil plug is mounted so as to be omni-directionally movable to a limited extent within continuously formed and welded tubing...
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3853079 |
DOUBLE SUCTION UNIT
An apparatus for removing both cut threads and trimmed edges from the working area of a sewing machine with a unit having a first air passage coupled to the area for removing trimmed edges, a...
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3640645 |
METHOD AND APPARATUS FOR ASPIRATING FLUIDS
An aspirator check valve in the form of a cylindrical sleeve which is restrained at its front end and along circumferentially spaced lines extending axially rearwardly from said front end, and is...
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