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| Number | Title | Issue Date |
| 7874812 | Suction jet pump with ribs for guiding the flow of fuel In known devices for pumping fuel, suction jet pumps are used which are driven by the fuel flowing back from the internal combustion engine and pump fuel from a supply tank into an impoundment container of a fuel pumping unit. In known suction jet pumps, the suction... | 01/25/2011 |
| 7789633 | Automatically deformable nozzle regulator for use in a venturi pump The automatically deformable nozzle regulator described herein is for use in a venturi pump. The automatically deformable nozzle regulator automatically adjusts its output area as needed to provide an increased suction force at a venturi pump inlet. The nozzle regul... | 09/07/2010 |
| 7744352 | Method for removing fluid from a well bore A jet pump assembly and method for removing fluid from a well bore extending into a formation is disclosed. The jet pump assembly includes a jet pump interposed between a tubing string and a packer. The jet pump includes a body having an outer surface, a lower tubul... | 06/29/2010 |
| 7497667 | Jet pump assembly A jet pump assembly for removing fluid from a well bore extending into a formation is disclosed. The jet pump assembly includes a jet pump interposed between a tubing string and a packer. The jet pump includes a body having an outer surface, a lower tubular end, an ... | 03/03/2009 |
| 7316222 | Fuel feed apparatus having fuel pump A fuel feed apparatus includes a fuel pump for pumping fuel from a fuel tank to an internal combustion engine. A pressure-control valve controls pressure of fuel, which is discharged from the fuel pump, to be equal to or less than a first pressure. A jet pump genera... | 01/08/2008 |
| 7267382 | Low maintenance vacuum generation The present invention features a system to generate vacuum for picking up and holding a component in a component placement machine wherein the arrangement of the elements comprising the system prevents the flow of foreign matter back through the system. One arrangem... | 09/11/2007 |
| 7096877 | Method of establishing at least one enveloped flow in a channel With a method of establishing an enveloped flow in a channel, in the channel an envelopment area (3) with a channel section (6, 7) is configured to which a stub with an outlet is connected, where the stub, which can be configured as a polyhedron, is ar... | 08/29/2006 |
| 7086417 | Gas flow control device Invention is of an improvement to seat of gate valves used for gas-lift producing oil wells, consisting of a seat lower part of which is curved there being a straight vertical art and a sloping straight lower part, central spacing consisting of a first part in the s... | 08/08/2006 |
| 7066153 | Jet 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 |
| 7063161 | Artificial lift with additional gas assist Well pumping of fluids having low hydrostatic pressure is provided through a combination of jet pumping and gas assisted lifting. A jet pump is located in a borehole in a producing zone of a well, and a source of gas is introduced into the fluid returning from the p... | 06/20/2006 |
| 7044730 | Device for improving gas fuel burning The invention concerns a device for bringing together a gas fuel and an oxidant in proportions providing optimal burning, so as to obtain, in particular for a fuel gas supplied with low pressure level and containing hydrocarbons, a smokeless burning. Said dev... | 05/16/2006 |
| 7045068 | Apparatus and methods for separating slurried material An apparatus for separating liquid from a slurry comprised of a solid and a liquid is described. The apparatus comprises a container sized and configured to receive the slurry which container comprises a removable cover sized and configured to enclose an atmosphere ... | 05/16/2006 |
| 6955526 | Vacuum generator with flow switching means for varying suction capacity through a plurality of nozzles The vacuum generator is capable of quickly and securely holding and releasing a work piece and capable of reducing amount of consuming compressed air. In the vacuum generator, a first nozzle and a second nozzle jet compressed air toward a diffuser nozzle. The second... | 10/18/2005 |
| 6935845 | Plurality 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 |
| 6904769 | Ejector-type depressurizer for vapor compression refrigeration system In an ejector-type depressurizer, a nozzle arrangement converts pressure energy of refrigerant supplied from a radiator into velocity energy to depressurize and expand the refrigerant, and a pressurizer arrangement mixes the refrigerant discharged from the nozzle ar... | 06/14/2005 |
| 6877960 | Lobed convergent/divergent supersonic nozzle ejector system An ejector system comprises a lobed, supersonic primary nozzle and a convergent/divergent ejector shroud. The lobed nozzle is just upstream from the ejector shroud, such that there is an annular space between the nozzle and shroud for admitting a secondary flow. In ... | 04/12/2005 |
| 6851936 | Vacuum producing device A vacuum producing device having an ejector means with a jet nozzle and a receiving nozzle downstream from it. At the outlet end of the receiving nozzle there is a receiving space for the fluid flowing through the receiving nozzle and an exit flow duct extends from ... | 02/08/2005 |
| 6796772 | Ejector and negative-pressure supply apparatus using the same An ejector can obtain a sufficiently large suction air quantity without reducing the ultimate vacuum. A diffuser is disposed downstream of a nozzle to form a single Laval nozzle. A suction port is provided between the nozzle and the diffuser. The inlet of the diffus... | 09/28/2004 |
| 6783334 | Hydraulic pump reservoir having deaeration diffuser A hydraulic fluid reservoir for a hydraulic power system includes a reservoir housing having an internal chamber for containing a supply of hydraulic fluid, an outlet for communicating the fluid from the housing to an inlet of a hydraulic pump, and a return flow inl... | 08/31/2004 |
| 6619272 | In-tank fuel supply unit An in-tank fuel supply unit has a reservoir mounted on the floor of a fuel tank, and a fuel pump mounted in the reservoir. The fuel level in the reservoir is maintained by means of a jet pump which is supplied with fuel through a passage. The jet pump has... | 09/16/2003 |
| 6582199 | Multi-stage ejector pump A multi-stage ejector pump having an ejector nozzle system with the nozzles situated coaxially behind each other and axially set apart from each other by a spaced distance. The ejector a nozzle system is made up of a set of individual nozzles and nozzle s... | 06/24/2003 |
| 6575705 | Jet pump throat pipe having a bent discharge end A jet pump has a jet nozzle that discharges an operating fluid, a chamber into which a transfer fluid flows and which encloses the end of the jet nozzle, a throat pipe having a constriction portion and a jet nozzle through which the transfer fluid that fl... | 06/10/2003 |
| 6547532 | Annular suction valve An annular suction valve includes a substantially tubular member having an inner surface defining a valve flow passage having an inlet, a nozzle disposed in the inlet and spaced from the inner surface so as to define an annular passage between the inner s... | 04/15/2003 |
| 6537036 | Flow amplifying pump apparatus A flow amplifying pump apparatus includes a body member that defines a flow passageway and a compressed air inlet. The body member includes a main segment and an insert segment which extends into a container and rotates relative to the main segment. A cov... | 03/25/2003 |
| 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 a negative pressure environment. Water in a backwater pip... | 10/29/2002 |
| 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 configured to pull in gas, causing a gas bearing effect wh... | 09/17/2002 |
| 6422828 | Cyclonic ejection pump A cyclonic ejection pump is designed for large flow rates, for example, applicable to the so-called "Oceanic Thermal Energy Conversion," normally abbreviated to OTEC, an energy generating system developed for utilizing the potential thermal oceanic energy... | 07/23/2002 |
| 6354371 | Jet pump assembly A jet pump assembly 10 for use in a subterranean wellbore 82 to lift produced fluids 72 to the surface, comprising a fixed type jet pump assembly 10 including a retrievable insert assembly 30 for retrieving substantially all working components of the jet ... | 03/12/2002 |
| 6322327 | Jet pump for transfer of material An improved liquid jet pump for moving solid or other materials is provided. The liquid jet pump includes a nozzle assembly, a suction chamber, and a target tube. The nozzle assembly pulls in atmospheric air, causing an air bearing effect around the liqui... | 11/27/2001 |
| 6312230 | Liquid-gas jet apparatus variants The mixing chamber of a liquid jet apparatus is composed of a convergent inlet section and a cylindrical outlet section and the ratio between of the surface area of the minimal cross-section of the mixing chamber and the surface area of the inlet cross-se... | 11/06/2001 |
| 6296454 | Suction jet pump having an inlet diffuser with an elliptical inflow cone A suction jet nozzle and a diffuser having an inflow cone with an elliptical cross-section is implemented in a suction jet pump to be used in a motor vehicle's fuel tank. The jet nozzle is configured to produce a flat propulsion jet that seals the diffuse... | 10/02/2001 |
| 6276903 | Liquid-gas ejector Each of a liquid gas ejector's mixing chambers has a cylindrical inlet section, a convergent intermediate section and a cylindrical outlet section. The ratio of the cross-sectional area of the inlet cylindrical section of the mixing chamber to the cross-s... | 08/21/2001 |
| 6269800 | Device for feeding fuel A device for feeding fuel from a supply container to an internal combustion engine of a motor vehicle has a supply container, a collecting cup arranged in the supply container, a fuel feeding pump which aspirates fuel from the collecting cup, a feeding co... | 08/07/2001 |
| 6261067 | Liquid-gas jet apparatus having a predetermined ratio for a cross-section of an active liquid nozzle and a mixing chamber The invention relates to the field of jet technology. The surface area of the minimal cross-section of the mixing chamber represents from about 1.1 to about 7.98 times that of the minimal cross-section of the active liquid nozzle. A liquid-gas jet apparat... | 07/17/2001 |
| 6250888 | Pumping-ejector unit and process therefor The invention pertains to the field of jet technology and relates to an operating process which essentially includes feeding of a gas-liquid flow from an ejector into a chamber for supersonic flow conversion, where the gas-liquid flow is exposed to an abr... | 06/26/2001 |
| 6210123 | Jet pumping device A jet pumping device includes an injection nozzle (1) intended for injection of a working fluid, placed in a line (3) including from upstream to downstream, a substantially cylindrical barrel (4), a convergent neck (5), a mixing channel (6) and a diffuser... | 04/03/2001 |
| 6164922 | Flow control valve for a pump for conveying a medium A pump for conveying a medium, in particular hydraulic oil, comprising a flow-control valve for controlling the flow of medium conveyed by the pump and a discharge channel (7) releasable by the flow-control valve. In order to prevent cavitation, a flow di... | 12/26/2000 |
| 6155794 | Aspirating aerator This invention relates to aquaculture machinery, particularly an aspirating aerator which is intended to enrich dissolved oxygen in the water body of high density aquaculture. The aerator comprises an aspirating device, a submersible pump and a support, w... | 12/05/2000 |
| 6149395 | Suction pulsator A suction pulsator (1) used to periodically generate a vacuum in a container connected to it, especially in a collection container for mother's milk, which is provided with a suction funnel. A central nozzle hole (25) of a nozzle body (20) is provided, wh... | 11/21/2000 |
| 6042341 | Suction 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 |
