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Class 417/77 - Recirculation of separated motive fluid


Subclass of Class 417 - Pumps
Definition: Apparatus in which the motive fluid and the pumped fluid
No. of patents: 29
Last issue date: 02/22/2011


NumberTitleIssue Date
7891954Method and apparatus for conveying material and ejector apparatus
A method for conveying material by applying a pressure difference in a conveying conduit (4), in which method the material is fed into the conveying conduit (4) and in the conveying conduit further into a separating device (5), where the materia...
02/22/2011
7105040Wine must and pomace pump
A wine must pump (10) for pumping a wine product (23) such as must or pomace, has an intake port (14) for receiving the wine product (23), a discharge port (16) for discharging the wine product (23) under pressure, vacuum ch...
09/12/2006
7066153Jet pump with improved start-up properties and fuel delivery system equipped with such jet pump
The present invention relates to a jet pump having a first inlet duct, a second inlet duct and an outlet duct having an outlet end, wherein the ducts are in fluid communication with each other at a central volume portion. The jet pump also includes a sleeve formed w...
06/27/2006
6942463Combination water pump/air compressor system
A combination water pump/air compressor system for performing two separate functions with one unit by providing compressed air and water. The combination water pump/air compressor system includes a piping configuration including a main pipe capable of carrying a com...
09/13/2005
6935845Plurality of vacuum generation units
A plurality of vacuum producing units capable of being employed together or independently of each other, each have a housing. The housing is internally provided with at least one ejector receiving means fitted with an ejector insert. The housings have the same trans...
08/30/2005
6910343Vapor-compression refrigerant cycle with ejector
In an ejector cycle having an ejector, a decompression amount of refrigerant between a gas-liquid separator and an evaporator is adjusted by a differential pressure control valve, so that a pressure increasing amount in a pressure increasing portion of the ejector i...
06/28/2005
6817837Jet 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 be suctioned into the collection reservoir without bringing together ...
11/16/2004
6799435Vapor compression refrigeration system
In a vapor compression refrigeration system, an evaporator and a gas-liquid separator are received in a common casing, so that the gas-liquid separator and the evaporator are placed close to each other. Thus, it is possible to limit heat absorption of the liquid pha...
10/05/2004
6797401Electromagnetic wave absorbing materials
Electromagnetic wave absorbing materials comprising magnetic alloy particles and an insulating matrix are disclosed. The magnetic alloy particles comprise a transition metal such as Fe and/or Co, and further comprise at least one refractory metal such as Ti, V, Cr, ...
09/28/2004
6511307Method for producing a vacuum by a pumping-ejection system
A method for producing a vacuum, which includes feeding an ejecting vaporous medium into the gas ejector, evacuating an ejected gaseous medium by the ejecting vaporous medium, mixing of the vaporous and gaseous mediums and forming a mixture of the two, ev...
01/28/2003
6431694Pump for recirculating ink to off-axis inkjet printheads
Embodiments of the present invention comprise fluid pumps having two expandable chambers, with each chamber having a fluid inlet and a fluid outlet. Each chamber further has a pressurizing wall causing the chamber to expand or contract, thus drawing fluid...
08/13/2002
6354807Method for generating vacuum and pumping-ejection apparatus for realizing the same
A method for producing a vacuum, which includes feeding an ejecting vaporous medium into the gas ejector, evacuating an ejected gaseous medium by the ejecting vaporous medium, mixing of the vaporous and gaseous mediums and forming a mixture of the two, ev...
03/12/2002
6352413Multi-stage jet pump arrangement for a vacuum apparatus
A pumping-ejection system has a vacuum separator, a pump connected through its suction port to the vacuum separator, an inlet liquid-gas ejector, a discharge liquid-gas ejector and an outlet separator. The outlet separator is furnished with a pipe for liq...
03/05/2002
6334758Pump-ejector compression unit and variants
A pump-ejector compression unit is furnished with a receiver, and a mixing chamber of a liquid-gas ejector and a separator are located inside the receiver. An outlet of the mixing chamber is connected to the separator, the receiver is partly filled with a...
01/01/2002
6312229Method for operating a pumping-ejection apparatus and apparatus for realising said method
The introduced process essentially includes feeding a gas-liquid flow from a liquid-gas ejector into a hydrodynamic device for adjusting the flow speed, where the gas-liquid flow is exposed to an expansion and hence a subsonic flow regime is provided. The...
11/06/2001
6302655Jet pump and porting for a pumping-ejection unit
The invention relates to the field of jet technology. Essentially a pumping-ejector unit comprises a separator and a liquid-gas ejector. Gas inlet of the ejector is connected to a source of evacuated medium, outlet of the ejector is connected to the separator ...
10/16/2001
6042341Suction nozzle operated with compressed air
A suction nozzle operated with compressed air is used to generate vacuum in hollow spaces connected on the suction side. Two cylindrical nozzle bores (1, 2) that are coaxial to one another, through which a compressed air flow flows, which are separated by...
03/28/2000
5993166Diffusion pumps having an integrated reservoir for the working fluid
A diffusion pump having a hollow outer body and a heater to heat working fluid that is used in the pump. The hollow outer body includes an outlet for connection to a backing pump and an inlet for communication with the chamber to be evacuated. A sump cont...
11/30/1999
5582509Circulating aspirator with improved temperature control
A vacuum aspirator apparatus uses circulating water from a reservoir while avoiding or reducing temperature rise in the circulating water. The apparatus consists of a reservoir with aspiration and cooling circuits, both of which are external to the reserv...
12/10/1996
5366395Pulsating impeller
A pulsating impeller system is provided for moving a body through a fluid medium. The pulsating impeller includes an enclosure mounted on a vessel or other body. The enclosure is provided with an inlet-outlet aperture to facilitate the flow of the fluid m...
11/22/1994
5363664Single and multistage refrigeration system and method using hydrocarbons
A hydraulic refrigeration system (10) employs as a preferred embodiment a hydrocarbon fluid as a refrigerant in combination with a non-miscible carrier fluid. A plurality of stages (110, 210, 310) of hydraulic refrigeration system (10) may be used by conv...
11/15/1994
5287694Fluid channeling system
A fluid channeling system includes a fluid ejector, a heat exchanger, and a fluid pump disposed in series flow communication The ejector includes a primary inlet for receiving a primary fluid, and a secondary inlet for receiving a secondary fluid which is...
02/22/1994
5088896Jet 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 permit convenient rotation of the venturi cartridge. Printed in...
02/18/1992
4792284Device for creating and exploiting a pressure difference and the technical application thereof
A device for creating a pressure difference in the flow of a fluid which may be a liquid or a gas and a number of technical applications. The fluid medium is fed along the longitudinal axis of a double cone, consisting of two coaxial hollow cones linked b...
12/20/1988
4516987Deaerator usable in a system for a steam powered torpedo and deaerating method
An apparatus and method for removing air and other gases entrained in water or other liquid and, more particularly from water delivered from a steam condenser and used in a steam-generating system for powering a prime mover of a torpedo. The apparatus inc...
05/14/1985
4505645Process and installation for rapidly creating a high vacuum using a single stage liquid ring pump
An installation for rapidly obtaining a high vacuum, comprising two compression stages, the first of which is a liquid ring vacuum pump, characterized in that means are provided for instantaneously coupling or dissociating the first stage and the second s...
03/19/1985
4249864Centrifugal 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 to produce the required vacuum....
02/10/1981
4149828Apparatus for removing dust from aeriform substances
The invention provides a jet pump system for removing dust from aeriform substances. The dust-laden, aeriform substance is entrained by at least one water jet pump to cause precipitation of the dust and water as sludge out of the aeriform substance....
04/17/1979
4053181Seabed mining utilizing circulating current based on water level differences
Apparatus for extracting mineral resources lying on the bottom of sea into a working ship floating on an ocean utilizing circulating current based on the difference of water levels. A hollow box shaped tank has its bottom opened and sunk liftably into the...
10/11/1977
 
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