Abstract: A mechanical pump having an inlet and spaced therefrom an outlet for the passage of fluid therethrough and incorporating at least one flame arrester.

Abstract: A system and method for reducing the time for charging a filter in a liquid dispensing system, such as one utilizing a positive displacement pump, is disclosed. The filter is located at the input side of the pump between the source of the liquid and the pump. In order to prevent air from the filter from entering the pump a reservoir is provided between the filter and the source of the fluid. Air from the filter is vented into the reservoir through a vent tube. A vacuum is used to draw air from the filter and, through the reservoir.

Abstract: A pump for gases to be measured having a pump housing in which a pump chamber is located. The pump chamber is sealed off by a working membrane that is connected to a crank drive by a connecting rod or similar lifting mechanism. A heating device is provided in an upper area of the pump housing, particularly in the pump head. Heat insulation covering at least the pump head is provided. The heat insulation is in the form of an insulating housing having an inner wall spaced apart from the pump head in order to form a gas insulation layer.

Abstract: Compressor has a driving unit. The driving unit is provided within a crank chamber and decreases the discharge capacity when a control valve opens a control passage to increase the pressure within the crank chamber. The throttle passage delivers oil with the compressed refrigerant to the crank chamber regardless of whether the control valve has opened or closed the control passage. Because the throttle passage may continuously deliver the oil to the crank chamber even when the control valve closes the control passage, the mechanical elements within the crank chamber can be reliably and sufficiently lubricated and the crank chamber is prevented from being in an insufficiently lubricated state.

Abstract: A compressor and an electric motor in which their weights are successfully reduced by employing a light-metal conductor wire for a winding, by reducing constituent components of a stator and a rotor of the electric motor, by providing a notch or a hole, and by eliminating the need for components necessary to mount the stator in a housing or a casing.

Abstract: A ribbon drive pumping apparatus and method for liquids is disclosed wherein the inherent centrifugal separation that occurs adjacent the pump inlet is used to remove contaminants. The pump has an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils decreases from the first end to the second end of the tube. Liquid is collected at the first end, contaminants are centrifugally separated and sorbed or bled off, an axial component of velocity of the liquid is increased via the rotating ribbon, and the purified liquid is ejected from the second end to provide pumping of the liquid. A central opening helps decrease cavitation and can be useful for pumping live fish.

Abstract: Oil which has been heated by use in a gas compressor is cooled by transferring the heat from the oil to gas upstream from the compressor.

Abstract: A combined pump and filter assembly having backwashing apparatus for the filter assembly and apparatus for offsetting the tendency for an increase in pump output flow resistance to cause an increase in fluid flow to the backwashing assembly.

Abstract: Provided is a low-noise, long-life electromagnetic blower that has a simple, low-priced configuration and can realize two different outputs, high and low. When the electromagnetic blower is operated with low output, coils of an electromagnet are connected in series with each other, and an alternating current is supplied from an AC power source. When the blower is operated with high output, on the other hand, current is supplied to the one coil only. In the case where the electromagnetic blower is used for sewage disposal, the electromagnetic blower is operated with low output during aeration and with high output during reverse cleaning operation. Thereupon, the electromagnetic blower can operate with low noise during aeration, and the efficiency of reverse cleaning can be improved. In order to operate the electromagnetic blower with high output, moreover, the coils of the electromagnet may be connected in parallel with each other.

Abstract: A compressor includes a piston slidably received in a chamber of a housing and having an annular groove for receiving a sealing ring, and having one or more conduits and having a number of openings communicating with the annular groove of the piston. The piston includes an inclined peripheral surface having a lower diameter greater the sealing ring for forcing the sealing ring to engage with the housing, and having an upper diameter less than that of the sealing ring for loosely receiving the sealing ring. A spring blade may selectively block the conduits of the piston.

Abstract: A compressed air system for an air brake system includes a heat generating element operating at an elevated temperature to maintain water in vapor state. The heat generating element is preferably an air brake compressor. A discharge oil filter is disposed downstream from the compressor for filtering oil from a stream of compressed air. The discharge oil filter is positioned close enough to the compressor to maintain water in the compressed air stream in a vapor form. The oil filter preferably includes an oil filtering media formulated to agglomerate oil as the stream of compressed air is filtered. The agglomerated oil and compressed air are passed downstream where the agglomerated oil and water from the air stream are removed. Alternatively, the agglomerated oil is filtered to a sump in a housing of the discharge oil filter.

Abstract: This pump has two end chambers (2, 3) in which are housed two pistons (4, 5) which pump sea water towards an reverse osmosis membrane (7), and a central chamber (8) in which a sliding block is housed, activated by displacement of the pistons (4 and 5) performing the piloting of a directional valve (9). This pump alternatively provokes the inversion of the external pressure intake towards the front areas of the end chambers (2, 3) and the inversion of the pressure intake of the water rejected by the membrane towards the rear areas of said chambers (2, 3).

Abstract: A gear pump for the power steering of a motor vehicle is integrated into the housing of the drive unit and is surrounded by both the discharge space and the intake space, which extend over the entire length of the housing Ribs are provided in the discharge space for pulsation damping and for stabilization of the pressure field. A filter space is provided between the cover and a filter cap.

Abstract: In a method and apparatus for treating fluids, a pump delivers a fluid flow from a fluid source to a manifold. The manifold divides the fluid flow into first and second fluid flows, which are delivered from the manifold to a housing. The housing includes therein a first vortex nozzle positioned in opposed relationship to a second vortex nozzle. The first fluid flow enters the first vortex nozzle to create a first rotating fluid flow, and the second fluid flow enters the second vortex nozzle to create a second rotating fluid flow. The first and second vortex nozzles impinge the first and second rotating fluid flows in a collision chamber, thereby treating the fluid.

Abstract: An air compressor system having a cast separator tank for use with an oil-flooded air compressor. The cast separator tank including an integrally cast air-end inlet opening which is mountable in face-to-face engagement with an air-end discharge opening of the compressor; an integrally cast first channel which extends between the air-end inlet opening and a separation chamber; an integrally cast second channel which communicates with a lower portion of the separation chamber and which extends along an outer portion of the cast separator tank; and an integrally cast lip which extends around an inner wall of the separation chamber. The integrally cast air-end inlet opening which is mounted to the discharge opening of the compressor, serves as a mounting foot, and supports the compressor on its discharge end. The compressor system further having a motor, such that the compressor, the motor and the cast separator tank are attached to from a single unit for ease of handling.

Abstract: The operations building comprises a cleaning chamber and a pump chamber with a pump for cooling water, the pump chamber directly adjoining the cleaning chamber and having such a chamber geometry that, during operation of the plant, disruptive vortices are avoided on account of a high flow speed of the cooling liquid. Arranging the two chambers directly adjacent to one another results in reduced costs on account of the absence of the hitherto conventional calming sections.

Abstract: A compressor for providing automatic capacity modulation is disclosed. The compressor comprises a compression chamber, a compressing member, a reexpansion area, a flow passage, a valve member, and a biasing member. The flow passage is in fluid communication with the compression chamber and the reexpansion area. In one position, the valve member permits flow through the flow passage and in a second position it prevents flow. The valve member is subjected to a first operating condition of fluid on one side and a second operating condition of the fluid on the other side. The biasing member exerts a biasing force on the valve member. When the first operating condition reaches a predetermined point relative to the second operating condition, the valve member moves and effects a change in the capacity of the compressor.

Abstract: The equipment for desalination of water by reverse osmosis comprises: a pump 1 for drawing the water to be salinated, a high pressure pump 25, a cylindrical block 8 housing two pistons 3, 4 connected to one another by a shaft 5 and disposed, freely slidable and liquid-tight, within respective cylinders 6, 7 being part of the same block (8) and separated from one another by a central plate 9, the latter being liquid-tight; the equipment further comprises an exchange valve 14 controlled by the position of said pistons 3, 4, as well as a cylinder or, in general, one or more containers, possibly arranged in series, in parallel or in series/parallel 15, containing one or more reverse osmosis membranes (16).

Abstract: An air pump for a fish-tank comprises a compartmental air chamber assembly formed by a base plate and a casing in the body. Hence, an indirect prolonged air path is formed in the air chamber assembly, resulting in a great reduction of noise generated while operating.

Abstract: An oil separator comprising a cylindrical portion, an inlet for incoming gas/oil mixture, an outlet for separated gas, a lower portion, and an outlet for separated oil is provided. The lower portion decreases in diameter as it proceeds from top to bottom, thereby providing for an increase in centrifugal force within the oil separator and greater separation of oil.

Abstract: A cassette for directing fluid flow, comprising a body and a valve chamber formed in the body, provides a centralized, programmable, and integrated platform to carry out diverse and coordinated pumping and valving functions, e.g., such as required for blood processing.

Abstract: An air conditioning compressor is equipped with an oil separator for separating high-pressure refrigerant gas and lubrication oil into a gas component and an oil component. The compressor's casing has a barrel portion surrounding an outer portion of the compressor and an enlarged case potion extending from the barrel portion. The enlarged case portion has a discharge chamber disposed between an inner surface of the casing and a rear portion of the compressor for temporarily holding the gas component and the oil component. An oil sump within the discharge chamber is dimensioned to store a sufficient amount of the oil component to suppress an increase in the oil circulation ratio of an air conditioning system while maintaining a sufficient amount of the lubrication oil in the compressor casing to lubricate the compressor.

Abstract: The invention relates to a hydraulic unit for a hydraulic control and/or regulating device, in particular for anti-blocking and/or anti-slipping brake systems, comprising control and regulating electronics arranged in a control housing as well as a valve block connected to said control housing, whereby at least one driving means is provided for at least one pressure-generating element. A cavity associated with the pressure-generating element receives leakage fluid from the pressure-generating element and a discharge channel that is connected to the cavity is provided in the valve block. According to the present invention, a means is associated with the discharge channel, and said means prevents fluid from entering into the discharge channel.

Abstract: To provide an oil-cooled type compressor in which the percentage content of oil of compressed gas delivered to an oil supply destination is always monitored to thereby enable prevention of an abnormal increase of the percentage content of oil.

Abstract: The invention relates to a piston pump (10) for a hydraulic, slip-controlled vehicle brake system. The piston pump (10) has a piston (20), which is inserted with a part of its length into a sleeve (12). A tubular filter (76) that encompasses the piston (20) is attached to the sleeve (12) and constitutes a captive retainer, which secures the piston (20) in a captive fashion in the sleeve (12). In order to reduce an axial mobility of a sealing ring (14) that seals the piston (20) in the pump housing (16), the invention proposes attaching the filter (76), which limits the axial mobility of the sealing ring (24), to the sleeve (12) in an axially mobile fashion.

Abstract: The invention relates to an apparatus comprising a pump unit 22 incorporating an engine driven low pressure pump for drawing fuel from a reservoir and an engine driven high pressure pump connected to supply fuel drawn by the low pressure fuel pump under pressure to a common fuel rail 18. The assembly also includes fuel filter 48 connected in the fuel flow path between the low pressure and the high pressure pump. The fuel filter comprises a fuel filter head 30 mounted directly on, or formed integrally with, the housing of the pump unit 22. The filter head 30 includes a plate 30b for mounting a filter housing 48 containing a filter element, and is formed with a first internal flow passage to enable fuel pressurised by the low pressure pump to be supplied to one side of the filter element and a second flow passage connected to the other side of the filter element to enable the filtered fuel to be supplied to the high pressure pump.

Abstract: A water circulation pump for an aquarium includes a shaft centrally engaged to the impeller. The free end of the shaft includes a pinion securely mounted to drive a reduction device. The reduction device includes a gear set having a final output gear that has an output shaft mounted to provide an extra power source. For example, the output shaft can drive a decorative device to make the aquarium looking more vivid and vigorous.

Abstract: A closed level control system includes an air dryer (10) which is mounted in a pressurized air line (4). The compressor output (16) can be connected to the pressurized air supply vessel (12) via the pressurized air line (4). Air from the atmosphere can be transferred via an intake valve (30) into the pressurized air supply vessel (12) via the compressor and the air dryer (10). Furthermore, pressurized air can be discharged into the atmosphere from the pressurized air supply vessel (12) via the air dryer (10) and the intake valve (30). There is a flow in the opposite direction through the air dryer than when filling the pressurized air supply vessel (12) from the atmosphere. In this way, an excellent regeneration of the air dryer (10) is ensured.

Abstract: A filter 42 comprises a cylindrical filter body 45 which is disposed in a suction passage 41, a lid portion 47 which closes an opening 45b positioned in a downstream side of the suction passage 41 in the filter body 45, communication holes 48 which penetrate through the filter body 45 and communicate the inside of the filter body 45 with the outside thereof, and filter elements 49, 50 which are disposed downstream of the communication holes 48 and the lid portion 47, in the filter body 45; wherein a gap between an outer circumferential surface 45c of the filter body 45 and an inner circumferential surface 45a of the suction passage 41 is closed upstream of the communication holes 48.

Abstract: A filter unit in which a solution storage chamber for storing a chemical liquid supplied from a solution tank and a filter material housing chamber for filtering the chemical liquid in the solution storage chamber by a filter to supply the chemical liquid to a pump are integrally formed is integrally arranged together with the pump. An exhaust path for exhausting air in a solution guide path for causing the solution storage chamber to communicate with the solution tank and the solution storage chamber, and a pump inlet-side path for causing the filter material housing chamber to communicate with the pump are arranged.

Abstract: To provide a gas compressor that is suitable for reducing cost for the overall compressor without degrading the oil separation performance needed for the compressor and that may keep the oil separation performance constant for a long period of time. An oil separator having a pipe structure composed only of a discharge pipe formed integrally with a side block as a means for separating a lubricant oil component contained in high pressure cooling medium gas is adapted. In this case, the discharge pipe is adapted to form a discharge route for the high pressure cooling medium gas without any bypass immediately before an inner wall of a compressor case from a first discharge chamber. The separation of the lubricant oil component is performed by collision of the high pressure cooling medium gas, immediately after discharged from a cylinder discharge port to the first discharge chamber, against the inner wall of the compressor case through the discharge pipe without reducing a high flow rate.

Abstract: A compressor system having a first compartment for housing relatively quietly operating equipment, and a second compartment for housing relatively noisy operating equipment. The second compartment is substantially closed off from the surrounding atmosphere to reduce the amount of noise that can be heard outside the compressor system on account of the noisy equipment operating within the compressor system housing. The second compartment includes a small air inlet opening and a small air outlet opening to allow enough air to flow through the second compartment to cool the equipment housed therein. The small openings reduce the amount of air-born noise which is released to the outside environment.

Abstract: An apparatus comprises a tank, an air compressor, and a motor with an output shaft. A fan is mounted on the output shaft. A drive assembly interconnects the motor operatively with the compressor. The apparatus further includes a base structure and a shroud. The base structure is configured to support the compressor, the motor and the drive assembly on the tank. The shroud is configured to cover the compressor, the motor, the drive assembly and the base structure on the tank. The shroud has a cooling air inlet port and a cooling air outlet port. A plurality of internal wall portions of the shroud are configured to direct cooling air to flow over the motor and the compressor upon flowing through the cover from the inlet port to the outlet port under the influence of the fan.

Abstract: An air compressor unit having an enclosure that permits adequate cooling air flow, and reduces the amount of noise that emanates from the air compressor unit. The enclosure has a partition that separates the interior of the enclosure into two compartments: a discharge compartment and a component compartment. A discharge aperture is in fluid flow communication with the discharge compartment. A compressor and motor are contained in the component compartment. The component compartment may be separated in a first compartment and a second compartment. Inlets allow cooling air to enter the enclosure, and a discharge aperture permits the cooling air to exit the enclosure. A blower draws cooling air into the enclosure through the inlets. An aftercooler is located between the compressor and the discharge aperture. The enclosure and compartments are configured to reduce the amount of direct “line of sight” noise that emanates from the air compressor unit.

Abstract: The invention concerns a vacuum generating device wherein the vacuum pump body (1) comprises cavities forming regulating chambers (12), closed at their ends by closure means such as sealing plus (26, 27), and run through by an exchange pipe (14) wherein flows a liquid coolant coming from a heat source. The regulating chamber (12) is connected by a pipe wherein flows thermal conduction liquid (17) which, through a piston (18) stressed by an actuator (19), adjusts the upper level (22) of a thermal conduction liquid (1) in the regulating chamber (12), thereby modifying the thermal conductance between the pump body (1) and the liquid coolant flowing in the exchange pipe (14). Thus the risk of scale deposit is reduced in the exchange pipe (14) of a vacuum pump (1), while controlling the temperature of the pump body (1).

Abstract: An air compressor system having a cast separator tank for use with an oil-flooded air compressor. The cast separator tank including an integrally cast airend inlet opening which is mountable in face-to-face engagement with an airend discharge opening of the compressor; an integrally cast first channel which extends between the airend inlet opening and a separation chamber; an integrally cast second channel which communicates with a lower portion of the separation chamber and which extends along an outer portion of the cast separator tank; and an integrally cast lip which extends around an inner wall of the separation chamber. The compressor system further having a motor, such that the compressor, the motor and the cast separator tank are attached to form a single unit for ease of handling. The compressor system also has a plurality of mounting feet for attachment to an appropriate subbase.

Abstract: A compressor system having a first compartment for housing relatively quietly operating equipment, and a second compartment for housing relatively noisy operating equipment. The second compartment is substantially closed off from the surrounding atmosphere to reduce the amount of noise that can be heard outside the compressor system on account of the noisy equipment operating within the compressor system housing. The second compartment includes a small air inlet opening and a small air outlet opening to allow enough air to flow through the second compartment to cool the equipment housed therein. The small openings reduce the amount of air-born noise which is released to the outside environment.

Abstract: A self priming pump system that includes a motor coupled to a centrifugal pump for driving the centrifugal pump. A separator having a reservoir is provided for storing a limited amount of pumped fluid in advance of the centrifugal pump. A vacuum source provides a vacuum suction to the reservoir to draw pumped fluid into the reservoir to prime the pump. To increase the reliability of the vacuum pump system, a deflector and/or extension may be provided in the reservoir to help prevent pumped fluid from entering the vacuum pump input. Also, the configuration of a tank used to store liquid for the vacuum pump system may be configured to separate and collect sediments near a drain port, which then can be easily drained. For positive head pressures, one or more valves may be used to prevent pumped fluid from escaping the reservoir, if desired.

Abstract: A fan assembly for an umbrella including a first integrated sub-assembly clampable about an umbrella pole. The first integrated sub-assembly has a split collar surrounding the umbrella pole, a support housing on a lower end of the collar defining a drive ring support plate, and a motor housing enclosing a motor therein on an upper end of the collar spaced from the drive ring support plate. A second integrated sub-assembly is rotatably disposable about the collar and the umbrella pole and includes a drive ring having a lower surface which is supported by the drive ring support plate of the support housing, a drive ring drive mechanism, and a plurality of fan blades coupled to the drive ring.

Abstract: A pump 12 is (or pumps are) located in a blind foundation pile 14 that has been driven into the sea floor. The top of the pile 14 is provided with a fitting that includes an inlet 18, a hanger 24 for the pump 12, and an outlet 20. water is delivered from a filtering and treatment apparatus into the pile 14 through the inlet 18. The pump 12 delivers the water under pressure through the outlet 20 into piping that directs the water to the water injection well.

Abstract: Pumping cartridges are disclosed for use in pumping systems. One such cartridge includes a series of fluid flow paths therein and a bypass valve therein, the bypass valve can selectively block fluid flow along one or both of two fluid flow paths through the valve. In some embodiments, the pumping cartridges are removable from a reusable pump drive component. In some embodiments the pumping cartridges comprise a substantially rigid component having one or more channels and/or depressions therein covered by a membrane so that together the rigid component and the membrane define a series of fluid flow paths, pump chambers and fluidic valves, including a bypass valve.

Abstract: 11.

Abstract: The present invention provides a device for drawing-off fuel from a motor vehicle tank, the device comprising a drawing-off pump and a fine filter placed upstream from the pump, wherein the drawing-off pump is a brush-less pump.

Abstract: A package-type screw compressor includes a low-pressure stage state compressor and a high-pressure stage compressor. Motive power is transmitted from an electric motor to the two compressors via a speed increaser. The discharge gas, compressed and heated to a high temperature by the low-pressure stage compressor, is cooled by an intercooler. The discharge gas, compressed and heated to a high temperature by the high-pressure stage compressor, is cooled by an aftercooler. A casing of the intercooler and that of the aftercooler are formed integrally with a speed increaser casing, reducing the number of component parts. A cooler portion, formed by the intercooler and the aftercooler, is spaced from the speed increaser casing, thereby preventing heat, produced by the compressed air, from being transmitted to the speed increaser casing.

Abstract: A drive unit for hydraulic consumers for individual structural component parts of a machine for producing shaped articles from molding materials, including a motor, a pump driven by the motor, and a carrying part configured to connect at least one of the pump and the motor to the machine. The carrying part has a pipe-shaped area which is closed at both ends by at least one of a bottom and a cover. At least the pump projects into the carrying part and is enclosed by the carrying part. The pump is attached to the carrying part on a side facing away from the motor. A portion of the carrying part is constructed as a connection block.

Abstract: A gas compression system and method according to which product gas is introduced into and compressed in, a compressor. A portion of the compressed gas is discharged to external equipment, and a portion of the gas is trapped in response to deactivation of the compressor. The trapped gas is passed back to the deactivated compressor.

Abstract: Disclosed herein is a disposable combination pump/filter assembly to simultaneously dispense and filter aseptic solutions. The disposable pump and filter assembly includes a piston assembly incorporating a piston rod and a piston head, a pump head assembly with inlet and outlet ports, a vacuum chamber, a rolling diaphragm seal, a filter element, intake and discharge valve mechanisms, flexible intake/discharge tubing, and a clamping assembly that holds the head, diaphragm, and vacuum chamber together. The assembly minimizes the total number of individual parts that make up the pump and filter assembly, as well as the cost to manufacture.

Abstract: The method relates to the operation of a cross-flow filtration installation for a product. This installation includes a filtration module (6), a pipeline (3) for the inflow of the product, a pipeline (9) for removing the product, a pump (4) with an electric motor (12) for recirculating the product, and a control valve (5′) for setting the conveying flow (Q1) of the pump (4). In order to make possible the maximally possible filtration output, based on the installation, along with a high proportion of solids of the product, without endangering operational safety by means of overloads, the strength of the operating current (i1) of the electric motor (12) is measured. The operating current (i1) is adjusted to a maximally, permissible value via a regulator (20) by setting the conveying flow (Q1) of the pump (4) by adjusting the flow control valve (5′).

Abstract: A vacuum-generating device including at least one vacuum pump associated with a suction pipe and with a delivery pipe, at least a portion of the vacuum-generating device is separated from the ambient atmosphere by a volume in which a suitable vacuum prevails. The solution is applicable in particular to delivery pipes of primary pumps, and it makes it possible to prevent the pumped gases from condensing and solidifying, while also reducing the noise given off.

Abstract: An apparatus for making a sterile emulsion, comprising a fluid pathway, a pumping bore, a reciprocable (reciprocal) member, and a valve body. The pumping bore being in fluid communication with the fluid pathway and having a reciprocable member reciprocably disposed in the pumping bore. The reciprocable member having first portion disposed in fluid communication with the fluid pathway and a second portion isolated from the fluid pathway, said second portion having a sterilant passage adjacent thereto. The fluid pathway, reciprocable member first portion and reciprocable member second portion may be sterilized and one or more emulsion constituents may be directed into the fluid pathway defined by the piston apparatus after sterilization. The valve body defines a valve bore in communication with the fluid pathway and a valve plunger disposed therein. The valve body may also be configured to maintain emulsion sterility.