Abstract: A compressor includes a compressing mechanism for compressing refrigerant gas and an oil separator for separating the oil from the gas. The separated oil is used to lubricate the compressor. The compressor has a discharge passage to permit refrigerant gas to flow out of the compressor, a recess located in the discharge passage, a plug press fitted in the recess and a supply passage for returning the separated oil to the compressor. The plug and the recess define a separation chamber having a circular cross-section and an annular chamber. The separation chamber is connected with the annular chamber by an outlet passage formed in the plug. The refrigerant gas swirls along the wall of the separation chamber, which separates the oil from the gas. Since the plug is press fitted in the recess, installation of the plug is facilitated. This structure also prevents the plug from loosening.

Abstract: A compression-pumping system for a multiphase fluid (GLR) includes a compression section, a pumping section, a shaft and a separator. The compression section is sealed off from the pumping section, and the pumping section and the compression section are included in the same enclosure and mounted on the same shaft. The compression-pumping system is associated with a liquid level control system situated at the level of the separator.

Abstract: In order to reduce the amount of air trapped in hydraulic assisted steering systems (1), a communication (13, 14) is established between the area of the oil expanding volume (8, 10, 11), which is the top area in the mounted position, and an open system (2), for example a tank volume.

Abstract: A filter head having a pump housing, a flow passage network, and a mounting bracket is adaptable to engage a replaceable filter cartridge. An electric pump is positioned within the pump housing. A Seal/isolator disposed between the pump housing and electric pump protects the electric pump from vibrations. After changing the filter cartridge, typically an air pocket forms creating a danger for a fuel injector or fuel injector pump. By using an electronic controller, an operator may remotely operate the electric pump to prime the filter cartridge. Also, the electronic controller may selectively determine whether the fluid flowing from the filter cartridge passes through the electric pump or instead passes directly into an outlet.

Abstract: A nozzle device for purging a vacuum pump includes a nozzle, the top portion of the nozzle is a tapered portion, two sides of the tapered portion are installed with nozzle holes for guiding the exhausted air sub-flow to be exhausted from the two sides of vent end.

Abstract: A fuel delivery module (10) adaptable for use in a gasoline or diesel fuel tank includes certain common module components for use in both gasoline or diesel fuel delivery applications. The common module components include a support frame (12) having a first cover (14) for closing off an opening of the fuel tank and including a fuel supply port (20) and fuel return port (22) for communication to the engine fuel supply/return system and a second base cover for positioning on a bottom wall of the fuel tank and having a fuel pump-receiving chamber thereon. The base cover (30) includes a first diesel fuel pick-up opening (44) that can be communicated to the fuel supply port on the first cover by a suitable diesel fuel supply conduit when the fuel tank contains diesel fuel.

Abstract: A method and apparatus for separating entrained gases from a pumped fluid. A degas pipe having an increased inner dimension relative to surrounding process piping is provided to generate a stratified two-phase gas/liquid flow. A controlled release mechanism permits selective removal of gas from the degas pipe.

Abstract: A wet gas compression device combining the following stages: a separation stage providing a gas phase and a liquid phase; a conversion stage for converting a gas phase and a liquid phase; a conversion stage for converting the liquid phase provided by the separation stage to a vapor phase by heat exchange; a compression stage for compressing the gases from the separation stage and the conversion stage and for providing a portion of gas for use in the heat exchange of the compression stage.

Abstract: A pumping system and method according to which a plurality of housings are connected together, with each having an inlet and an outlet for respectively receiving and discharging the liquid to be pumped. A single shaft is driven by a motor and extends though all of the housings, and a plurality of rotors are respectively disposed in the housings and are connected to the shaft for rotation therewith. When the shaft is rotated, the rotors pump liquid passing into their corresponding housings from its inlet, through the housing and out its outlet.

Abstract: An air purging circulator is provided with a reservoir on the suction side of an impeller chamber in a circulation pump, to allow circulating water to reduce its velocity, and remove air from the lowest pressure point in the system, the suction side of the circulator, where the least amount of dissolved air is present in the circulating water, so that entrained air in the water is released, and vented from the system. The flanged inlet and outlet apertures of the pump housing are axially aligned, and preferably are located at one end of the pump housing opposite from the motor, to allow convenient installation in retrofit of existing systems. Separation media, such as marbles, wire mesh, or crumpled wire, to further slow the water flow and enhance separation of the air from the water, can be provided in the reservoir.

Abstract: In open drive refrigerant compressors, the location where the shaft extends through the casing provides a potential location for leakage of refrigerant. Where a shaft seal is used which requires an oil seal, the draining of oil from the shaft seal cavity, upon stopping the compressor, is prevented by placing a check valve downstream of the shaft seal cavity which forms a part of the oil distribution system. An optional check valve may be located upstream of the shaft seal cavity.

Abstract: The invention pertains to the field of fluidics and jet technology. The essence of the invention: is a vacuum-producing device composed of a liquid-gas jet apparatus, a separator and a pump, is furnished with a jet pump, so that the gas inlet of the liquid-gas jet apparatus is connected to a pipeline for discharge of vapors from a rectification column, the liquid inlet of the liquid-gas jet apparatus is connected to the discharge side of the pump, the outlet of the liquid-gas jet apparatus is connected to the separator, the passive medium inlet of the jet pump is connected to the separator, the outlet of the jet pump is connected to the suction side of the pump, the active nozzle of the jet pump is connected to a pipeline for export of a liquid fraction from the rectification column. This vacuum system results in increased efficiency and productivity.

Abstract: A pump and filter assembly including a filter housing secured in a pump housing. The filter housing has a filter outlet portion with a central filter outlet passage. A plurality of nozzle passages are disposed adjacent and radially outward of the filter outlet passage. The nozzles communicate with an annular recess formed in the filter outlet portion. The annular recess receives return bypassed hydraulic fluid from a regulator valve for distribution through the nozzles into an inlet stream of fluid flowing through the filter outlet passage. The inlet stream velocity is increased which increases the pressure at the pump inlet. The increased pressure at the pump inlet allows the pump to operate at higher speeds without cavitation.

Abstract: The present invention relates to a system for minimizing emulsion formation in a pumped oil well by establishing substantially core annular flow at the outlet of the system. The core annular flow regime is established at the outlet of the system through a combination of a pump outlet and a transition conduit.

Abstract: The invention relates to the field of petrochemical industry. The essence of the invention: is a vacuum-producing device, comprising a liquid-gas jet apparatus, a separator and a pump, is furnished with a mixer. The gas inlet of the liquid-gas jet apparatus is connected to the pipeline for export of a gas-vapor phase from a rectification column, the liquid inlet of the liquid-gas jet apparatus is connected to the discharge side of the pump, the outlet of the liquid-gas jet apparatus is connected to the separator, the gas outlet of the separator is connected to consumers of compressed gas, the outlet of the mixer is connected to the suction side of the pump, the inlet of the mixer is connected both to the pipeline for export of a liquid faction from the rectification column and to the liquid outlet of the separator. The offered jet pump vacuum-producing unit is more effective, more capable and less harmful to the environment in comparison to existing units.

Abstract: A filter element is made of a mold body of filter materials and sandwiched between protrusions of a pump casing and a flange, so that the filter element may be assembled easily with the pump casing and the flange. The filter element is disposed within a fuel tank together with a fuel pump and a pressure regulator. Fuel discharged from the fuel pump is led laterally through fuel communication passages along the fuel inlet side surface of the filter element, so that the fuel may flow uniformly across the filter element.

Abstract: A machine including a fluid compressor; a generator; a prime mover operably connected to the compressor and the generator; a machine switching means for switching the machine to a first mode of machine operation where only the compressor is operable, to a second mode of machine operation where only the generator is operable, to third mode of machine operation where neither the compressor nor the generator are operable, or to a fourth mode of machine operation where both the compressor and generator are operable.

Abstract: An air pump (10) having a separation chamber (15) defined by a top wall (11), a bottom wall (12) and generally annular side walls (13). A liquid entry tube (24) configured to draw air into a stream of liquid passing through the liquid entry tube is coupled to the separation chamber so that the air/liquid mixtures rotates within the separation chamber. The rotation of the mixture causes air to accumulate within a central zone (30) and the liquid to accumulate about a peripheral zone (31). The continued flow of the mixture causes the accumulating air to become pressurized where it is released through an air exit tube (20) in fluid communication with the central zone of the separation chamber. The liquid is expelled through a liquid exit port (18).

Abstract: The invention relates to a piston pump having a piston that is axially displaceable in a bush. In order to keep the piston in the bush in a manner secured against loss, a tubular filter is secured to the bush in the extension thereof; the filter has a smaller inside diameter than the bush and in this way keeps the piston in the bush.

Abstract: A linear compressor having improved heat-radiating performance incorporates first and second cylinders disposed coaxially, a first piston reciprocatably disposed inside the first cylinder, a second piston reciprocatably disposed inside the second cylinder, a compression chamber formed by the front face of the first piston and the front face of the second piston and a connecting wall connecting the first and second cylinders, and multiple working gas passages having openings formed in the connecting wall and connecting the compression chamber to the outside via these openings. The working gas passages are formed on a plane perpendicular to the axial direction of the first and second cylinder. Heat-radiating means are provided around the working gas passages. The first cylinder and the second cylinder are made of aluminum (or an aluminum alloy).

Abstract: The present invention provides an air compressor which includes an air drier filled with a drying agent and having a first passage for supplying compressed air to one air supplied part while absorbing moisture from the compressed air by passing the compressed air through the drying agent (27) and a second passage (28a) for supplying the compressed air to another air supplied part without passing the compressed air through the drying agent. The air supplied through the first passage returns through the same passage to dry the drying agent.

Abstract: In one embodiment a reverse osmosis permeate pump with shut off valve and reverse osmosis system employs bypassed feed water from the reverse osmosis membrane to drive a water wheel and gear set to reciprocate a piston back and forth between two chambers in the pump. Permeate from the membrane is introduced to the respective chambers by a pair of fluid inlets and discharged from the respective chambers through a pair of discharges to a storage tank. Flow through these respective inlets and discharges is a function of the direction in which the piston is moving and whether it is imparting a pressure or suction on a given chamber. A second piston is exposed to the pressure in the discharges from the chambers and the second piston moves between a position permitting incoming feed flow to the membrane, and a position blocking that flow upon increase in pressure in the fluid discharge from the chambers. In another embodiment, the reverse osmosis permeate pump is powered by an independent source of power.

Abstract: A rotary pump includes a housing having an inner surface that confines a rotor chamber. Two parallel shafts are mounted pivotally on the housing and extend axially through the rotor chamber. Two meshing multi-lobe rotors are mounted on the shafts within the rotor chamber, respectively. Each of the rotors has a plurality of lobes projecting radially therefrom toward the inner surface without contacting the inner surface.

Abstract: A water release system includes a compact aftercooler connected to receive hot, moisture laden compressed air from a compressor having a load cycle under control of a governor. A water release valve is connected between a header of the aftercooler and an unloader pressure line connected to the governor. The valve ordinarily remains open until it receives a certain, pressure value signal from the unloader line which is effective to close the valve. A switch is located in pressure sensing relationship with the aftercooler, and a solenoid valve is electrically connected to the pressure sensitive switch and pneumatically connected between the water release valve and the governor.

Abstract: An integral oil filter-pump system for an electric power device which involves a cabinet having an oil-filled compartment for containing the power device, as well as a circulation pump for circulating oil through the system, including the compartment for containing the power device.

Abstract: A modular fan filter unit designed to supply process control air to mini-enclosure clean rooms. The modular fan filter unit is easy to remove, repair, and replace in the clean room environment. It has a readily accessible filter mounted across its bottom surface and an internal variable frequency drive fan. The fan pushes air through the filter into a clean room. Multiple numbers of modular fan filter units may be connected together as an array.

Abstract: A fuel pump module with an inlet fuel filter has a vapor inlet in communication with the interior of the filter and constructed to reduce the size of larger vapor bubbles trapped within the filter before they are ingested by the fuel pump downstream of the filter to limit the amount of fuel vapor ingested by the fuel pump at one time. Preferably, a tubular inlet sleeve is integrally connected with the fuel filter and press fit onto the inlet of the fuel pump as a subassembly with the vapor inlet passage formed in the inlet sleeve. The vapor inlet passage may be a slot formed in the inlet sleeve providing a reduced area flow path through which vapor in the interior of the filter may pass before entering the fuel pump.

Abstract: A compressor that includes a base; a housing supported on said base, said housing and base defining a compression chamber; and a compression module supported on said base within said compression chamber, said base including at least two support channels, each of the at least two support channels including a first group of flow openings for supplying a volume of uncompressed fluid to the compression module.

Abstract: A system of geometric guides and baffles is used for directing and diffusing external air drawn from a fan blower before distributing the flow evenly to the outlet of a fan filter unit. This arrangement not only reduces the turbulence within a fan filter unit but also maintains the particle count of air drawn through the same system. Furthermore, the present invention is implemented in dimensions substantially similar to that of the fan blower. As such, the present invention minimizes noise of a fan filter unit even in confined clean room facility.

Abstract: There is a cooler fan assembly having a shroud, a fan blade and motor to produce an air flow, a first heat exchanger, and a second heat exchanger. The first heat exchanger cools compressed air; the second heat exchanger cools a coolant. The shroud defines an air passageway. The air passageway directs an air flow produced by the fan blade and motor in a path having a direction going into an inlet portal of the shroud and out of a discharge portal of the shroud. The first heat exchanger is coupled to the shroud and is in the path of the air flow. The second heat exchanger is coupled to the shroud and is in the path of the air flow. The fan blade and motor is completely disposed within the shroud.

Abstract: A fuel filter assembly employs a hand primer and a disposable filter cartridge mounted to a header. The filter cartridge has a filter element which defines an interior chamber for receiving the filtered fuel. The hand primer includes a diaphragm which cooperates with the header to define a reservoir and a valve plate having a plurality of orifices and an axial opening for providing fluid communication between an exit passage of the header and the reservoir and between the chamber and the reservoir, respectively. A first check valve is mounted in the opening and a second check valve is mounted in an axial bore in the first check valve. The first and second check valves are moveable between an open position for allowing flow through the orifices of the valve plate and orifices in the first check valve, respectively, and a closed position for preventing such flow.

Abstract: A compressor having an oil separator at a shell portion of a housing of the compressor. The oil separator is constructed by a front part 61 integral to a front housing 11 and a rear part 62 integral to a cylinder block 12. The oil separator has an oil separation chamber 1 formed between the front and the rear parts 61 and 62. The oil separator is formed integrally with oil separating passageway forming plates 67 and 68 which partially divide the separation chamber 63 to create a serpentine shaped passageway 66 which extends from an inlet 64a to an outlet 65 of the separation chamber. The passageway 66 is in communication with the crank chamber 15 via a oil return passageway 69 at a location adjacent its outlet.

Abstract: A hermetically sealed compressor includes a cylinder forming a compression chamber, and a piston reciprocally mounted in the cylinder for compressing gaseous refrigerant. A mixture of gaseous refrigerant and lubricating oil is conducted via a conduit arrangement to a suction muffler located upstream of the compression chamber. The conduit arrangement includes, at an inlet to the suction muffler, radially inner and outer tubes forming a channel therebetween. Gaseous refrigerant flows into the suction muffler through the inner tube. Lubricating oil traveling radially outwardly of the gaseous refrigerant enters the channel and is discharged from a downstream end of channel and thus does not enter the suction muffler.

Abstract: A liquid-sealed vane oscillator includes a housing defining a cavity corresponding to part of a virtual annulus centered around, and extending at least 180.degree. about, an axis of rotation and delimited by first and second ends. A vane is mounted rotatably within the cavity. The vane includes a first seal and a second seal carried with the vane and deployed so as to subdivide the cavity into a first chamber of variable volume between the first end and the first seal, a second chamber of variable volume between the second end and the second seal, and an intermediate volume between the first seal and the second seal. At least one port is provided in fluid communication with each of the first and second chambers. The oscillator also has an axial shaft, penetrating and extending from the cavity, which is mechanically coupled to the vane so as to allow exchange of mechanical power with an external device.

Abstract: A gas pulsation and noise reduction system for positive displacement blowers and compressors. A resonator is placed in one or both of the inlet and outlet conduits of the blower or compressor. The resonator is sized to damp out gas pulsations by providing a reflected wave 180.degree. out of phase with the gas pulsation in the associated conduit. Multiple resonators can be used in one or both conduits to dampen gas pulsations of different frequencies.

Abstract: A cover for a pump jack includes a main rear wall with two slots for engaging over a pair of shafts of the pump jack at the drive belt on the pulleys on the drive shafts. The rear cover portion includes a peripheral wall extending around the sides and top of the peripheral edge with the bottom of the cover panel being opened. A front panel portion manufactures a single piece or as multiple pieces fits over the rear cover panel with a lip engaging onto the peripheral wall to which it is connected by latches. A stiffener member extends across the rear wall and closes the slots. A similar stiffener member can be attached across the front panel portion. Both the rear panel and the front panel are manufactured from glass fibre reinforced resin allowing the product to be manufactured in lightweight. The front cover panel can therefore be readily removed to allow replacement of the belt.

Abstract: An apparatus is configured for mounting a blower motor into a blower housing. The blower housing has an interior region for receiving the blower motor. The apparatus comprises a top shell configured to surround a top portion of the blower motor and a bottom shell configured to surround a bottom portion of the blower motor. The top and bottom shells are configured to hold the blower motor in the interior region of the housing without a rigid connection between the blower motor and the blower housing. The top shell cooperates with the bottom shell to define an air intake manifold to provide flow of intake air to the blower motor.

Abstract: A paint spraying device has a housing with two halves and a hydraulic device mounted in the housing. The hydraulic device includes a valve system and a pump for conveying a medium to be sprayed. The pump is loaded by a hydraulic medium. A vertical plate flange has a first and second end and is connected by the first end to the hydraulic device. The second end of the vertical plate flange comprises a first support leg projecting from the housing. A drive motor is positioned in the housing for driving the pump and is connected to the vertical plate flange. The housing has at least one second support leg remote from the first support leg. The halves are fixedly connected to the hydraulic device.

Abstract: A security device in which a cap-shaped element is mounted covering essential functional and/or adjusting elements of a fuel delivery device. The cap-shaped element is connected to the parts of the fuel delivery device that it encloses in such a way that gaining access to the parts or to removing the cap-shaped element is only possible through destructive means and that when a particular destructive force is exceeded, a fracture occurs at a rated break point by means of which a functional or adjusting element or the defining wall that carries this element is fractured in relation to a fuel-carrying space of the fuel delivery device.

Abstract: A piston assembly comprising a piston sleeve having an interior wall, a piston carried in the piston sleeve, a cup seal carried by the piston which engages the interior wall of the piston sleeve, and a valve plate matingly adapted to receive the piston sleeve. A firm thermal-insulating barrier is disposed between the valve plate and the piston sleeve for reducing the heat flow from the valve plate to the piston sleeve.

Abstract: A fuel filter assembly of modular form is adapted to incorporate a lift pump or an automatic primer. The lift pump is mounted to the filter base by means of a lock ring. Fuel supplied to the filter base inlet is supplied to a rotary vane-type or gerotor pump which may be electrically activated from the vehicle console or a location remote from the fuel filter assembly. The lift pump regulates the fuel pressure to provide a sufficient fuel flow through the supply system and the filter for ultimate delivery to the fuel injection pump or engine. The pump/filter flow sequence is bi-directional and may be selected by the angular position of an adapter.

Abstract: A fluid compressor including a compression module driven by a prime over, a separator tank having a separation chamber, a scavenge flow connector having a T-shaped housing that is adapted to produce scavenge vacuum pressure to drain lubricant from a scavenge cavity when the fluid compressor is continuously running loaded.

Abstract: A compressor having a cam plate disposed in a crank chamber and mounted on a drive shaft. The cam plate is tiltable between a maximum inclined angle position and a minimum inclined angle position with respect to a plane perpendicular to an axis of the drive shaft according to a differential pressure in the crank chamber and in a cylinder bore. The cam plate varies the stroke of a piston based on an inclination thereof to control the displacement of the compressor. A supply passage connects a discharge chamber with the crank chamber to deliver the gas from the discharge chamber to the crank chamber. The supply passage has an inlet that is open in the discharge chamber. A control valve is disposed midway on the supply passage. The control valve adjusts the amount of the gas introduced into the crank chamber from the discharge chamber through the supply passage to control the pressure in the crank chamber. A filter is disposed at the inlet of the supply passage to filter the oil.

Abstract: An oil pickup device is provided which is adapted to replace the standard oil pump cover plate and pickup tube typically utilized for use with a conventional oil pump for an internal combustion engine. The oil pickup device comprises an oil pump mounting section having a front wall which complimentarily conforms with the mating surfaces of the pump housing to provide an oil seal and for segregating the discharge chamber of the oil pump, and an oil pickup section for extending into the oil contained in the engine supply reservoir formed within a conventional oil pan to provide a continuous supply of oil to the oil pump. The oil pickup device further includes an oil filter or screen positioned between the oil pump mounting section and the oil pickup section for filtering inlet oil to prevent particulate matter, such as dirt or metal shavings, from entering into the oil pump.

Abstract: An oil free compressor uses special structure to interface the engine and compressor. Special quieting structure is also disclosed, including an upward exhaust mechanism, to maintain quiet operation.

Abstract: The device of the current invention produces volumes of compressed air by utilizing a turbocharger, a compact combustion assembly, and a hydraulic power pack. The turbocharger includes a turbine and centrifugal compressor, each being interconnected using a pressure-lubricated bearing such that the turbine drives the compressor. Compressed air leaving the compressor is passed through a junction box containing a plurality of air distribution nozzles. The nozzles direct the compressed air either to a pressurized receptacle or back to the combustion assembly in order to provide a source of air for a combustion chamber. This device will economically obtain significant volumes of compressed air more efficiently than other known methods.

Abstract: A drive unit for driving an electrically-operated compressor mounted in an automotive vehicle is provided with a ventilation arrangement. The ventilation arrangement includes a casing having a vent hole defined therein. A filter having an air permeability and a water repellency is mounted on the casing so as to cover the vent hole. An elongated ventilation member is mounted on the casing so as to communicate with the vent hole and extends in a direction diverting from the direction in which the casing is splashed with water. The filter may be accommodated in the elongated ventilation member.

Abstract: Disclosed is a method and apparatus for the continuous remediation of a site contaminated with a hazardous substance. The remediation apparatus includes a material selectively permeable to the hazardous substance located at the site. Once isolated, the hazardous substance is removed to a remote vessel by mechanical means or by utilization of an gas-injection system. The invention also contemplates a valve configured to protect remediation apparatuses from detrimental overloadings of hazardous substances during a remediation procedure.

Abstract: The objects of the present invention are to remove the dust in a closed container, to keep the pressure in the closed container within a predetermined range, and to shorten the maintenance time of a vacuum pump system.The present invention provides a centrifugal dust collector 2 on main pipes which connects a furnace body 1, a mechanical press 9 and a dry pump 10, and a metal mesh dust collector 15 on a bifurcated pipe in a single-crystal semiconductor pulling apparatus. When the vacuum pump process begins, the metal mesh dust collector 15 collects amorphous silicon generated in the furnace 1. As the pressure in the furnace is reduced, the centrifugal dust collector 2 collects the dust particles instead. Since the gas flow rate increases as the vacuum state become higher, the critical diameter of collectable particles decreases, thereby improving the dust collection efficiency.

Abstract: A reduced noise radial piston pump with a driving motor for a controlled brake system. The noise reduction is primarily accomplished by locating and orienting the motor/pump bearings with respect to the pump pistons.