Abstract: A filter unit includes an inlet for receiving unfiltered water. A first fluid path directs water through a membrane and a filter element to a first outlet. Additionally, a second fluid path directs water across the membrane and to a second outlet.

Abstract: An engine oil filtration and temperature regulation assembly (1) mountable on a vehicle engine fluidically connectable to an engine oil circulation system (1). The assembly includes an oil filtration group (2), a heat exchanger group (3) and a support and fluidic connection group (5) to engage to the engine and to support the filtration group (2) and the heat exchanger group (3). The group (5) includes a base plate (50) fluidically connected to receive and return oil from and to the engine. The group (5) includes a support and fluidic connection device (500), between the base plate (50) and the filtration group (2) and/or heat exchanger group (3) having a multi-layer assembly (510) having plate-shaped elements (5101, 5102, 5103, 5104, 5105, 5106) overlappable to constitute respective ducts to create a fluidic connection between the engine and oil filtration group (2) and/or heat exchanger group (3).

Abstract: A filter manifold includes a housing and a shuttle. The shuttle is disposed within the housing such that the shuttle is movable relative to the housing between a plug position and a flow position along an axial direction. The shuttle is also coupled to the housing such that the shuttle is non-rotatable relative to the housing about the axial direction. A spring is disposed within the housing. The spring is connected to the shuttle such that the tension spring urges the shuttle towards the plug position. The shuttle is positioned at the flow position of the shuttle when a filter cartridge is coupled to the filter manifold.

Abstract: A filter precleaner for precleaning an unfiltered gaseous mixture. A coalescing filter includes a filter media for filtering a gas, a nozzle assembly for precleaning an unfiltered gaseous mixture, and a lower endplate. The nozzle assembly includes a first nozzle plate positioned upstream of the filter media. The lower endplate is positioned at a lower end of the filter media beneath the first nozzle plate. The lower endplate allows liquid to drain through the lower endplate. The unfiltered gaseous mixture impacts the lower endplate such that liquid from the unfiltered gaseous mixture flows through the lower endplate and gas from the unfiltered gaseous mixture flows through the filter media.

Abstract: The filter assembly includes a threadless closure system for sealing a filter element of the filter assembly within a bowl of the filter assembly. The bowl is fluidly connectable to opposing fluid transfer passages. The filter element and a cover element connected to the filter element are received into the bowl. The filter element is retained in the bowl via a pin of the filter assembly that engages the cover element. The filter element may be removed and replaced without the unscrewing of threads exposed to an external environment external to the filter assembly during typical use of the filter assembly.

Abstract: A filter assembly includes multiple filter element housings with each filter housing receiving a filter element therein; a manifold supporting the multiple filter element housings; and a filter element housing coupling to attach each filter element housing to the manifold, each filter element housing coupling including a filter housing retainer ring bolted to the manifold to couple the filter housing to the manifold.

Abstract: A fuel injector for a turbine engine, the injector including a body including a mechanism for admitting fuel under pressure, a stop valve for feeding a primary fuel circuit, and a metering valve mounted downstream from the stop valve for feeding a secondary fuel circuit. The injector further includes at least one leakage channel, that can be formed by a thread, that extends from a zone situated downstream from the stop valve and upstream from the metering valve to a zone situated downstream from the metering valve to generate a permanent leakage flow in the secondary circuit.

Abstract: A fuel injector for a turbine engine, the injector including a body including a primary fuel circuit and a secondary fuel circuit fed by a metering valve. A leakage channel extends from a zone in fluid flow connection with the primary circuit to a zone in fluid flow connection with the secondary circuit. The leakage channel is configured to be open in a closed position of the metering valve and to be closed by the metering valve moving.

Abstract: A replaceable filter for a liquid filter cartridge system having a valve body and a valve actuator relatively rotatable to control fluid flow through the valve by aligning and unaligning respective fluid inlet passages and fluid outlet passages of the valve body and the valve actuator.

Abstract: An aircraft hydraulic system for operating a plurality of hydraulically-operated actuators in the aircraft having a hydraulic reservoir in which hydraulic fluid is stored, a hydraulic distribution system coupling the hydraulic reservoir to the actuators and having a main flow line coupled to the hydraulic reservoir, a hydraulic pump fluidly coupled to the main flow line and the hydraulic reservoir to pump hydraulic fluid from the reservoir to the main flow line, a main filtration system fluidly coupled to the main flow line upstream of at least some of the actuators, and a self-cleaning filter fluidly coupled upstream of the main filtration system.

Abstract: A self-bypassing filter system for a fluid reservoir. The system includes a filter disposed within the reservoir, positioned to intercept the fluid flow proceeding out of the reservoir. A bypass fluid flow path extending from upstream to downstream of the filter, without passing through the filter. In addition, the system includes a membrane, positioned to completely block the bypass fluid flow path upstream of the filter, the membrane being formed of a material dissolvable in the fluid.

Abstract: A filter device, in particular a return line suction filter, has at least one filter housing (3) receiving a filter element (17) defining a longitudinal axis. The filter element has an end cap with an enclosure at one filter element end enclosing an end edge of the filter material (39) and fixed to an element receptacle (5) connected to the filter housing (3) for fixing the location of the filter element (17) in its functional position. The element receptacle (5) and the associated end cap (21) of the filter element (17) have design irregularities (63, 65) adapted to each other at their parts (23, 47) engaging each other in the functional position of the filter element (17). The irregularities enable the engagement in a positional alignment to each other.

Abstract: A filter element includes in an end cap assembly an internal bypass valve such that the bypass valve can be replaced along with the filter element. Additionally or alternatively, the filter element end cap assembly has a reverse flow valve for enabling reverse flow across the filter element without passage through filter element.

Abstract: A fluid filter having a filter basket is described. The filter basket defines a filter interior through a first wall, formed of a filter element, which surrounds the filter interior, and a second wall, located at the bottom of the filter basket, accommodating an inlet to receive a fluid. The second wall includes a bypass channel extending into the filter interior, defining a bypass inlet therein, which in turn includes a bypass valve for routing the fluid to bypass the filter element based on the pressure differential across the filter. Further, the second wall includes at least one collecting pocket where filtered contaminants of the fluid can deposit and accumulate. Here, the bypass inlet extends above the second wall, placing the bypass inlet above the at least one collecting pocket.

Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.

Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.

Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.

Abstract: A filter element for filtering liquids or gases, having a concentrically arranged filter medium with zigzag pleats. The filter medium is provided with end disks on its axial end faces, each end disk having an inside that is connected to the filter medium and an outside that faces away from the filter medium. At least a first end disk carries a valve element which is situated concentrically inside the filter medium. This valve element includes a valve seat which bulges outward above the plane of the outer side of the end disk. The valve element includes a valve body which cooperates with the valve seat and which is arranged on the first end disk so that it is axially movable and is inside of and surrounded by the filter medium.

Abstract: The present disclosure provides methods, compositions and systems for drying coal fines.

Abstract: A filter element for filtering liquids or gases, having a concentrically arranged filter medium with zigzag pleats. The filter medium is provided with end disks on its axial end faces, each end disk having an inside that is connected to the filter medium and an outside that faces away from the filter medium. At least a first end disk carries a valve element which is situated concentrically inside the filter medium. This valve element includes a valve seat which bulges outward above the plane of the outer side of the end disk. The valve element includes a valve body which cooperates with the valve seat and which is arranged on the first end disk so that it is axially movable and is inside of and surrounded by the filter medium.

Abstract: Liquid filter assemblies, features, components and methods are described. In general, a liquid filter cartridge is provided which includes features that help ensure that when the assembly is serviced, the cartridge positioned within the assembly is a proper one, in proper sealing orientation, for appropriate use. Features that can be used to provide for this include: a seal on the filter cartridge that defines a seal pattern non-orthogonal to a plane perpendicular to a central axis of the filter cartridge; and, a member of a projection/receiver arrangement on the filter cartridge which is orientated to engage a portion of a liquid filter assembly, for example a liquid flow collar, to allow sealing when the cartridge is a properly positioned cartridge and a properly configured cartridge. Assembly features are described. Also, a flexible radial projection arrangement providing snap-fit interaction between a cartridge and housing is provided. Methods of assembly and use as described.

Abstract: A disposable, spin-on fluid filter for mounting to a fluid-directing head includes a molded housing having a closed base and a sidewall defining a hollow cavity. Filtering media is positioned within the hollow cavity and a nutplate is joined to the housing so as to enclose the filtering media. The nutplate includes a plurality of inlet flow openings and a lobed sleeve extending into the filtering media. An endplate is joined to the filtering media including a flange portion and a sleeve portion. The fluid filter includes an elastomeric valve having a first portion positioned between the flange portion and the inlet flow openings and a second portion positioned between the sleeve portion and the lobed sleeve. The valve provides an anti-drain back capability and in cooperation with the lobed sleeve provides a filtering media by-pass capability.

Abstract: A filter unit includes an outer filter assembly, a bypass valve assembly, and an inner filter assembly. The bypass valve assembly can be separated from the outer filter assembly, allowing the bypass valve assembly to be recycled/reused when the outer filter assembly is disposed of. In addition, the bypass valve assembly and the inner filter assembly can be connected together, then inserted into the outer filter assembly.

Abstract: A filter assembly comprises a filter housing (23) into which a filter element is insertable. A core element (38) is provided extending within the housing (23). The filter assembly comprises a coupling assembly (200) that is insertable into the housing (23), the coupling assembly (200) comprising a leaf spring (201) having a span larger than an internal diameter of the filter housing (23), such that when the leaf spring (201) is inserted into the filter housing (23) the outer edge of the leaf spring (201) engages an inner surface of the filter housing (23) and the leaf spring (201) bulges in the direction of insertion of the leaf spring into the housing, preventing removal of the leaf spring, in a direction opposite to the insertion direction, from the filter housing (23), the coupling assembly (200) comprising a connecting part for connecting the core element (38) to the coupling assembly (200).

Abstract: Systems and methods are disclosed for performing hemodialysis that include fluid handling systems that provide accurate control over the type and level of hemodialysis being performed. The system includes a first pump for pumping dialysate into a dialyzer and a second pump for pumping dialysate out of the dialyzer. The system also includes a third pump that provides improved control of a level of ultrafiltration, hemodiafiltration, or both.

Abstract: An apparatus and a method for filling a container containing a dry powdered salt concentrate for use in dialysis with purified fluid and removing the trapped air or gases generated during the filling of the container, while maintaining the required fluid level in the container and without the need for evacuating gases from the container prior to filling.

Abstract: A de-aeration system for a fuel system, the fuel system having a housing for containing a fuel filter element, a fuel inlet and a fuel outlet is disclosed. The de-aeration system includes a de-aeration valve having a valve inlet in a lower face of the valve for connection to the housing for purging the air trapped in the housing. The de-aeration valve also includes a valve outlet in an upper face of the valve and a ball. The ball is configured to lift between the lower face and the upper face in response to an air pressure differential acting on the ball. This opens the valve to purge air trapped in the housing. The ball is further configured to close the valve by sealing against the valve outlet in the upper face in response to a pressure differential across the ball created by unfiltered fuel entering the valve.

Abstract: According to the invention, the filter is fixed to the engine block by screwing it to an attached connecting sleeve. The connecting sleeve contains a bypass valve, in the form of a tubular piston sliding in a through-passage and pushed against an intermediate shoulder by a spring. By sliding, the piston opens or closes a radial passage establishing direct communication between the inlet passage and the through-passage of the device. If the filter element of the filter is clogged, the pressure rise in the inlet passage causes the piston to move and the radial passage to open to reduce the pressure rise and ensure a satisfactory flow of oil. This reduces pressure rises upstream of the filter and ensures sufficient lubrication of the engine even in the case of clogging of the filter.

Abstract: An apparatus for filtering water has a valve head and a filtration/purification canister removably mountable thereon. Connecting the canister to the valve head automatically opens a check valve in the valve head to permit water to flow from the valve head into and through the canister, and then back to and through the valve head to an outlet port. Disconnecting the canister from the valve head automatically closes the check valve, stopping the flow of water. A bypass valve is provided in the valve head to permit a sanitizing solution to flow through the valve head and along the lines of the water distribution system to sanitize the system, while bypassing the canister. The outlet port may be directly connected to an appliance that uses water, to eliminate possible contamination that may occur when water is brought indirectly from the outlet port to the appliance instead.

Abstract: A liquid filter assembly is provided. The preferred assembly includes a serviceable filter cartridge having a primary filter section and a secondary or bypass filter section. The preferred assembly includes a bypass valve arrangement and a suction filter arrangement. A valve, to allow flow from an interior of the assembly to a reservoir if needed, is provided. Preferred serviceable filter cartridges are shown.

Abstract: A filtering system has a filter housing and a filter element and having a raw side and a clean side arranged in the filter housing. Liquid introduced into the filter housing flows through the filter element from the raw side to the clean side. An overflow valve is disposed between the raw side and the clean side of the filter element. The overflow valve is moved into an open position should a pressure of the liquid on the raw side of the filter element surpass a limit value. The overflow valve has an adjustable valve body loaded by a valve spring and made from plastic material. The filter element and of the filter housing structurally supplement one another such that the filter element is positioned precisely in the filter housing and relative rotation of the filter element relative to the filter housing is prevented.

Abstract: The present invention relates to a water filter device comprising a filter head with filter head components, a replaceable filter candle with filter candle components, and an encoding structure which is formed between a filter head component and a filter candle component. Said water filter device is distinguished, in a first embodiment, in that an encoding structure is formed with axial orientation on an end face of the filter candle and/or on an element which is associated with such an end face of the filter candle. In a second embodiment, said water filter device is distinguished in that an encoding structure is formed separately from a fixing structure.

Abstract: A valve assembly for reducing water loss from a leak from a water device. The valve assembly includes a first passage through which water flows from a water source to the water device and a second passage through which water flows from the water device. A first valve is in fluid communication with the first passage and the second passage. The first valve is operable for obstructing the first passage in response to a change in pressure differential between water in the first passage and water in the second passage resulting from a leak of water from the water device. The valve assembly also includes a second valve in fluid communication with the first passage. The second valve is responsive to the obstruction of the first passage to close the first passage and thereby stop water from flowing from the water source to the water device.

Abstract: A de-aeration system for a fuel system, the fuel system having a housing for containing a fuel filter element, a fuel inlet and a fuel outlet is disclosed. The de-aeration system includes a de-aeration valve having a valve inlet in a lower face of the valve for connection to the housing for purging the air trapped in the housing. The de-aeration valve also includes a valve outlet in an upper face of the valve and a ball. The ball is configured to lift between the lower face and the upper face in response to an air pressure differential acting on the ball. This opens the valve to purge air trapped in the housing. The ball is further configured to close the valve by sealing against the valve outlet in the upper face in response to a pressure differential across the ball created by unfiltered fuel entering the valve.

Abstract: A fluid filter includes a vertical housing, a filter cartridge, and a bypass valve. The housing has a fluid inlet for communicating a fluid into the housing and a fluid outlet for communicating fluid downstream of the housing. The filter cartridge is disposed within the housing between the fluid inlet and the fluid outlet and includes a filter element for filtering the fluid, as well as means for maintaining and relieving a predetermined level of pressure across the filter element to provide an accurate visual indicator as to whether the filter element needs replacement. The bypass valve allows fluid to flow from an unfiltered side of the filter element to a filtered side of the filter element when the pressure across the filter element exceeds the predetermined pressure.

Abstract: An oil filter arrangement (10) comprises a housing (12) provided with a reception compartment for receiving a filter element (20), which is insertable in the housing and which the oil radially passes through, an oil output and a support tube (22) which is arranged in the reception compartment and supports the filter element (20), wherein a bypass valve (24) which is arranged in the support tube (22) opens when a limiting pressure is exceeded and which the oil flowing from the oil input to the oil output passes through by passing the filter element, said bypass valve comprising a valve seat (36), a valve body (38) interacting therewith and a cage-like lid part (49). The support tube (22) and the lid part (40) are embodied in a single piece form of a plastic material.

Abstract: An oil filter for dispensing additive into oil used in an engine, comprises: a canister; a filter within said canister, said filter having an outside and an inside and defining a space between the filter outside and the canister; a chamber within the canister and defined by a member having an opening therethrough; at least one additive disposed in said chamber; and a gate accruable between open and closed positions, said gate being disposed so as to occlude said opening when in the closed position and being disposed so as to allow fluid flow through said opening when in the open position. The additive may be in a solid form and may contact the oil when said gate is in the open position. The gate may be temperature- or pressure-actuated.

Abstract: A fluid treatment device includes at least one treatment module (“pod”) releasably connected to a head unit, the pod and head unit each including riser tubes which may be connected to adjacent riser to form a flow passage through the fluid treatment device. A connection mechanism allows a control valve to be rotatably connected to a fluid treatment device so that it may be oriented as desired.

Abstract: An oil filter by-pass adapter for placement between an internal combustion engine block and a spin-on type oil filter comprising a wafer plate having a first face adapted to contact the engine block, and a second face adapted to contact the oil filter. The second face has a peripheral wall to retain the oil filter. A central through passage extends through the wafer and provides clearance for the oil to enter and exit the oil filter. There is a choked flow oil conduit from the input oil stream having at least one oil transfer passage which takes oil from before the oil filter and passes it to an oil transfer channel. The oil filter by-pass adapter can be an ultra high molecular density plastic or aluminum. The oil filter by-pass adapter oil transfer passages are between 1/64- 7/64 inches in diameter and the oil transfer channel is between 3/64-¼ inches in diameter.

Abstract: A water treatment system for removing impurities from incoming feed water includes a manifold having a plurality of water treatment filter housings connected thereto. The filter housings are configured to accept a plurality of water treatment filter cartridges, which have, at one end, a filter housing cap fixedly attached thereto. The system manifold is also adaptable to be able to connect to peripheral accessories, filtration devices, and identical water treatment systems.

Abstract: A dry change water filter assembly is provided. The filter assembly includes a filter head including a water by-pass valve, and a filter body configured to removably attach to the filter head. The water by-pass valve is actuated by at least one of attaching the filter body to the filter head and removing the filter body from the filter head.

Abstract: A water treatment system includes a pump adapted and configured to pressurize a flow of untreated water. A water treatment tank downstream from the pump includes an inlet in fluid communication with an outlet of the pump and an outlet in fluid communication with an outlet line. A check valve downstream from the water treatment tank includes an inlet in fluid communication with the outlet line of the water treatment tank. The check valve is adapted and configured to permit fluid flow therethrough only in a direction that permits the water treatment tank to evacuate water through the outlet line of the water treatment tank. A flow manifold includes a first inlet in fluid communication with an outlet of the check valve, a second inlet in fluid communication with an outlet of the pump, and an outlet.

Abstract: A kidney failure treatment system includes: (i) a dialysate supply; (ii) a weighing device; a control container coupled operably to the weighing device; (iii) a diffusion membrane; (iv) a drain; first and second pumps; (v) a first fluid conduit coupled fluidly to the dialysate supply and the diffusion membrane, the first fluid conduit coupled operably to the first pump; (vi) a second fluid conduit coupled fluidly to the control container and the drain, the second fluid conduit coupled operably to the first pump; and (vii) a third fluid conduit coupled fluidly to the diffusion membrane and the control conduit, the third fluid conduit coupled operably to the second pump.

Abstract: A lubricating oil filter has a housing which includes a first shell providing a housing base and a second shell providing a housing lid, wherein a filter media is suspended in a space defined by the shells by being clamped between a shoulder in the housing base and a rib projecting from the housing lid. The filter media may be either a flat filter media or a pleated pack filter media. In a preferred configuration, the housing is rectangular and has both an unfiltered oil inlet and a filtered oil outlet in the first shell forming the housing base so that the filter element may be changed without disconnecting the lubricating oil filter from inlet and outlet lines.

Abstract: A filter module assembly utilizes a priority valve installed in a manifold to allow for continuous filtration of hydraulic fluid up to a predetermined flow value and diverts occasional high flow to a secondary circuit. This arrangement provides both a low pressure drop at a high flow condition and structural integrity (1,000,000 impulse cycles from 0 to 6000 psi) while at the same time may reduce the weight by as much as 50% from a conventional design approach.

Abstract: The invention relates to a especially an oil filter for cleaning lubricating oil, especially for internal combustion engines of automobiles, comprising a filter housing which is positioned essentially upright when installed, which contains a filter receiving area for accommodating a ring-shaped filter insert in an upper section and which contains an inlet channel for unclean liquid, which connects a supply line of the liquid filter to an unclean side of the ring-shaped filter insert in the filter receiving chamber and an outlet channel for clean liquid, which connects a clean side of the ring-shaped filter insert in the filter receiving area to a discharge line of the liquid filter, in a lower section. The invention provides for a functional support insert which can be inserted into the support receiving area formed in the lower section of the filter housing and which contains the outlet channel, in order to simplify the production of the liquid filter.

Abstract: A filtering device, especially a suction return filter includes a filter housing having two useful connections and a tank connection, and accommodates at least one filter element. The filter housing also provided with three return valves, two of which are held in the closing position by spring loads. All of the return valves are combined as a module at one end of the filter housing. The remaining return valve is configured as an integral constituent part of one of the spring-loaded return valves, has an opposite opening direction relative to it, and is not spring loaded. This arrangement enables the return valve unit to have a compact arrangement which can be structurally easily connected to the filter housing at a central point.

Abstract: A filter module assembly utilizes a priority valve installed in a manifold to allow for continuous filtration of hydraulic fluid up to a predetermined flow value and diverts occasional high flow to a secondary circuit. This arrangement provides both a low pressure drop at a high flow condition and structural integrity (1,000,000 impulse cycles from 0 to 6000 psi) while at the same time may reduce the weight by as much as 50% from a conventional design approach.

Abstract: A coolant filter kit, for attaching in-line to a coolant hose of a combustion engine, includes a fluid conduit member and a coolant filter apparatus. The fluid conduit member has a stem and two opposed branches connected to the stem, with an inlet formed in a first branch thereof, and an outlet formed in a second branch. The fluid conduit member further has a partition in the stem thereof, substantially separating a first flow chamber from a second flow chamber therewithin. In a preferred embodiment of the invention, a limited amount of fluid is allowed to flow directly from the inlet to the outlet without passing through the filter apparatus. The filter apparatus includes a hollow housing defining a filter chamber therein. A porous cylindrical filter element is disposed in the filter chamber of the housing. Optionally, the filter apparatus may include a slow-dissolving tablet or plug for releasing a supplemental coolant additive into coolant over time.

Abstract: A liquid filter assembly comprises a filter cartridge and a filter head in fluid communication with the filter housing. A filter media construction is positioned within the housing. The filter media construction, in combination with the housing, defines an unfiltered liquid volume and a filtered liquid volume. The filter head includes an inlet for conveying liquid to the unfiltered liquid volume, a first outlet for conveying liquid from the filtered liquid volume, and a second outlet. A first valve assembly is provided which is constructed and arranged to selectively permit passage of liquid from the unfiltered liquid volume through the second outlet, in response to a first selected liquid pressure level within the unfiltered liquid volume.