Abstract: The self-disinfecting drain trap is an arrangement for the automatic cleaning and disinfecting of drain traps in drain channels. The cleaning and disinfection take place automatically during normal usage and without interruption of the operation of the drain trap. They take place by means of a novel combination for drain traps of electromechanical oscillation, preferably ultrasound, heating the interior space of the drain trap and heating the confining liquid and preventing growth on the inner wall by means of a growth-inhibiting and antimicrobially effective coating. The danger of recontamination of sanitary apparatuses and devices and therewith also of the ambient air by microorganisms from wastewater pipelines is effectively countered therewith.

Abstract: The invention relates to a device for processing, especially for filtering and removing, fluids and fluid remnants in a low-pressure chamber (1). The device comprises a vacuum pump (30) and a separator (16), whereby the low-pressure chamber is connected to the separator via a first line (10), and the low-pressure chamber is connected to the vacuum pump via a second line (20) so that the low-pressure chamber can be evacuated while bypassing the separator. The invention also relates to a low-pressure chamber for processing fluids which is equipped with a heating plate with holes for heating areas of the interior space of the low-pressure chamber.

Abstract: The present invention provides a convenient way to filter water in a body of water. The invention combines an encloseable container with an internal pump producing cyclonic action, with two different types of filters. One type of filtering consists of layers of varied porosity, one layer filtering only very fine debris, while the other layers blocking progressively large debris. The other type of filtering involves stacked discs placed to aid in further filtering of the water in the chamber of the cylinder. Water flows around the bottom disc, through holes in the second disc, and around the third disc before approaching the stacked filters of varied porosity. An internal ultra-violet light helps control algae in the water.

Abstract: A floating bath assembly in which the user gets into an open tank in which he rests floating in a slightly heated high-density saline solution in a decubitus dorsal position. The tank has an electrical means for heating the solution, and in the lower part of the tank, there is a connection to an extraction tube of the liquid. The liquid is taken to a reservoir that has an electric resistance, which, at the same time, is connected to a filling tube that uses a valve to allow the tank to be filled again so the user may fill the tank with the high-density saline solution each time it takes a bath.

Abstract: A liquid circuit for filtering a liquid, comprising a liquid storage vessel (10), a liquid pump (17), a consumer or user device (14), a filter element (23) and a controller (24). A heated liquid can be supplied at least partly to the filter element (23). The liquid circuit may be used in liquid systems in which a liquid, such as water, oil or fuel, is filtered and at least part of the liquid is returned to the storage vessel (10). The liquid is pumped in the liquid circuit from the storage vessel (10) by the pump (17) through lines (11, 13, 15, 16), filtered by filter element (23) and supplied to the consumer device (14). Excess liquid not required by the consumer device (14) is returned through liquid return line (15) to the controller (24) which directs the liquid either to the filter element (23) or the storage vessel (10), depending on the liquid temperature.

Abstract: The invention relates to a device for processing, especially for filtering and removing, fluids and fluid remnants in a low-pressure chamber (1). Said device comprises a vacuum pump (30) and a separator (16), whereby the low-pressure chamber is connected to the separator via a first line (10), and the low-pressure chamber is connected to the vacuum pump via a second line (20) so that the low-pressure chamber can be evacuated while bypassing the separator. The invention also relates to a low-pressure chamber for processing fluids which is equipped with a heating plate with holes for heating areas of the interior space of the low-pressure chamber.

Abstract: An improved water purification system for production of USP purified water and/or USP water for injection include backwashable, chlorine tolerant microfilter or ultrafilter for initial filtration of the feed water (10). The filtrate from the filter (18) is provided to a dechlorinator (18) prior to being subjected to an optional, reverse osmosis membrane unit (60) and then to a still (66) which discharges purified water at USP standards for purified water or water for injection.

Abstract: A fuel filter assembly includes a filter assembly housing with an annular outer surface and a fuel filter positioned within the filter assembly housing. A heater element is positioned between the annular outer surface of the filter assembly housing and the fuel filter. The fuel filter assembly is part of a fuel system attached to an engine. The filter assembly housing has an inlet and outlet. Fuel traveling through the fuel filter is heated by the heater element when the fuel temperature is below a predetermined temperature. The predetermined temperature preferably corresponds to a temperature below which paraffins form in the fuel. The invention assists in a cold start by avoiding a clogged fuel filter due to paraffin formation.

Abstract: A process is provided to produce water that will meet the specifications of the United States Pharmacopeia Inc. for Purified Water and Water for Injection, and water for dialysis as circumscribed by the American Association for Advancement of Medical Instrumentation (AAMI). The system has no storage tanks where stagnant water will be fouled by biofilm colonizing the tank surface. Water is circulated throughout the purification system and drawn as required, on demand. The water is purified and used immediately or recycled and repurified to ensure quality. Sanitation of the purification system, maintaining microbiological purity and cleaning is done by controlling the pH so that it is normally acidic by maintaining a high carbon dioxide concentration in solution, the carbon dioxide being allowed to pass into the permeate from a reverse osmosis membrane assembly used to purify the water.

Abstract: A liquid filter, especially including an oil filter cartridge (12) which is contained in a pot-shaped or cylindrical housing (10) with threaded cover (11), into which a cooler (13) is preferably installed. An outlet opening (37a) is contained in the oil cooler (13) which facilitates complete emptying of the cooler when the filter is changed. In this way, a complete replacement of the oil can be performed, so that the replaced oil is not contaminated from the outset by residues of the old oil. Thus, service intervals can be lengthened. To prevent a short circuit of the outlet opening (37a) during operation, the opening is closed by a valve stem (33) coupled to the threaded cover (11) and opened by unscrewing the cover.

Abstract: A filter device for separating water and other impurities from liquid fuel including a housing body (11), inside which a first filter element (12) is disposed; a collector vessel (17) which is disposed underneath the filter element (12); a pump (25) which is used to remove water present in the collector vessel (17), and a detector (23) which is used to determine whether water has accumulated in the collector vessel (17).

Abstract: A filter, especially a filter for lubricating oil of an internal combustion engine, including an inlet for the raw liquid and an outlet for the clean liquid. A filter insert (12) is arranged inside the filter, as well as a valve, such as a pressure relief valve (23). Parts of the valve are provided with coatings, for example hydrophobic coatings of polytetrafluoroethylene or silicone. The filter can also contain a heating element (34) in the vicinity of the valve.

Abstract: The present invention provides a convenient way to filter water in a body of water. The invention combines an encloseable container with an internal pump producing cyclonic action, with two different types of filters. One type of filtering consists of layers of varied porosity, one layer filtering only very fine debris, while the other layers blocking progressively large debris. The other type of filtering involves stacked discs placed to aid in further filtering of the water in the chamber of the cylinder. Water flows around the bottom disc, through holes in the second disc, and around the third disc before approaching the stacked filters of varied porosity. An internal ultra-violet light helps control algae in the water.

Abstract: An electric thermos bottle capable of filtering flowing water comprises a thermos bottle, an internal glass container, a heating pipe, a water pump, a filter, and a water supply pipe. The internal glass container is disposed in the thermos bottle and forms a water-storing space therein. The heating pipe and water pump are disposed at the bottom of the water-storing space, and the filter is disposed at the top thereof. One end of the water supply pipe is connected to the water pump, and the other end thereof forms a reflux mouth and a water outlet respectively disposed above the filter and outside the thermos bottle. The water outlet is connected with a water button. Water in the water-storing space can flow via the water supply pipe to the filter and back to the water-storing space by continual action of the water pump, preventing peculiar smell and filtering out impurities.

Abstract: An apparatus for and method of filtering hydrocarbon contaminated water is disclosed herein. The present invention may be used in drainage openings, particularly in parking lots and containment areas for large sources of hydrocarbons such as oil tanks or electrical transformers, to remove hydrocarbons from hydrocarbon contaminated water. The apparatus has a filtration compartment which filters out debris and sediment which may clog the treatment compartment. A pre-filter attachable to the apparatus may be used to further aid in filtering out sediment. A means for melting snow and ice may be incorporated within the filtration compartment such that liquid flow is not hindered during extreme weather conditions. The treatment compartment contains a hydrocarbon absorption media which absorbs any hydrocarbons present in the water rendering such water substantially hydrocarbon-free for discharge directly into a stream or groundwater.

Abstract: A disposable cartridge device is provided for use in a heated cartridge water treatment system in which particles, formed by the heat-induced reaction of bicarbonates in the water, can be efficiently collected in non-turbulent particle settling zones. The cartridge includes multiple containers which are assembled to fit into each other and which form channels for the flow of water within gaps between the walls of the containers. When the particle collecting section becomes full, the water flow automatically is blocked, or cut-off, which signals the need to replace the cartridge. The cartridge also can include a polishing filter and a heater mounted to a surface of the outer container.

Abstract: A filtering apparatus having a vessel and a filter made from fluororesin and treated before filtering operation by at least one of adding thermal treatment in gas or liquid and penetrating with fluid composed of hot water or steam at a temperature of less than melting point of the fluororesin.

Abstract: A liquid cooling system 10 for cooling liquids including a housing 11, a housing cover 12, and a liquid cooler 13. The housing 11 is sealingly fastened to the housing cover 12. The liquid cooler 13 is composed of cooling plates 19 stacked one on another. The cooling plates 19 sealingly separate a liquid space 20 from a coolant space 21. The coolant spaces 21 are connected by openings 26 which are disposed on projections 27 on the plates 19. In the housing 11 there is a liquid inlet 15, a liquid outlet 16, a coolant inlet 17 and a coolant outlet 18. The liquid inlet 15 leads into a housing volume 14 on an uncooled side 31 which is formed by the housing 11 and the liquid cooler 13. The uncooled side 31 lies opposite a cooled side 32 which communicates with a return passage 22 extending through the liquid cooler 13. The liquid inlet 15 is sealingly separated by a seal arrangement 25 from the coolant inlet 17 and coolant outlet 18.

Abstract: An apparatus and methods for sanitizing and cleaning filtration systems is provided. The apparatus includes a chamber fluidly connected to a source of fluid for backwashing the system, and a heat exchanger for increasing the temperature of the fluid. A filter media is positioned within the chamber. The method of sanitization involves backwashing the apparatus to remove debris, then continuing to circulate the backwash fluid through the system while increasing the temperature of the fluid, until the temperature of the water and apparatus is sufficient to deactivate microorganisms. The method may also involve increasing the disinfecting power of the fluid by adjusting the pH of the fluid. The apparatus may be provided with a scavenger to assist in the substantially complete removal of fluid from the chamber during and after a steaming or cleaning process.

Abstract: A thermostatic heating device for liquids, provided with a recirculation pump, comprising a heat-insulating dielectric material outer housing, a heat-conductive dielectric material inner casing, a resistive film interposed between said outer housing and said inner casing, and a tube of heat-conductive material positioned in the interior of said casing, said tube being lowerly open to house an impeller of a pump applied to one end of said cylindrical housing.

Abstract: A spring-loaded filter assembly for a liquid dispenser is disclosed that permits ready removal of a filter element from a filter housing. The filter assembly includes the filter housing having a liquid inlet, a liquid outlet, and a liquid passageway between the inlet and outlet. An opening is affixed to the filter housing and is removably closed by a closure element. A filter element is positioned for movement within the filter housing between a filtering position and an access position. According to the present invention, a biasing member is positioned in the filter housing. When the closure element is removed from the opening, the biasing member is configured for urging the filter element from the filtering position to the access position for removing the filter element from the filter housing.

Abstract: A filter (10) for use in a water heating vessel, such as an electric kettle, to filter sedimentary material in the water includes a scale collector (25), for example in the form of a compacted mesh block, carried on the filter. The block can be supported by a carrier member (27) permanently or detachably mounted on the filter frame, preferably towards an end of the filter closest to the bottom of the vessel.

Abstract: The present invention provides a diesel filter system and a fuel heating device comprising a PTC heating element and a rod-shaped heat conductor which is in thermal contact with PTC heating element. The rod-shaped heat conductor comprises at least two tubular parts arranged in parallel. The PTC heating element is located between said at least two tubular parts. The system and device according to the invention is of compact constructional design and can therefore be installed in different kinds. The invention increases the rate of flow and allows for a high heat transfer from the PTC heating element to fuel.

Abstract: A filter device for fuel supply system of an internal combustion engine of a vehicle has a housing, a filter insert arranged in the housing, at a dirt side a supply from a fuel container, at a clean side an outlet to an internal combustion engine, a return to the fuel supply container from the dirt side, a valve controlling the return, the valve having a movable wall which is loaded with a fuel pressure at the clean side and holding the return closed until a fuel pressure at the clean side exceeds a predetermined value, and thereafter is released by the valve, the valve having a rod which is displaceable by the movable wall and extends through the filter insert from the clean side to the dirt side, the movable rod having an end region which is arranged at the dirt side and controlling the return.

Abstract: The filter cake in a filter press is heated by direct contact with a heating plate opposite the pressing membrane so that a vapor phase is generated which moves uniformly in a planar pressure front through the filter cake to dry residual liquid therefrom. The filter cake is maintained under vacuum during the drying step.

Abstract: An oil filter 1 for an internal combustion engine includes a filter body 3 and a plastic filter housing 2. Integrally formed within the filter housing, a safety wall 7 is radially fitted around the feed channel 4 and the return channel 5 creating a collecting space 6 that surrounds both channels. If seal leaks occur when the device is connected to a flange, e.g. of an engine block, the leaked oil will accumulate in the collecting space.

Abstract: An automated system for removing waste grease is provided employing a pump, the pump being used to draw waste grease from a grill grease trap via an intake assembly and pump the waste grease through the system, the intake assembly comprising a wand, hose, and in-line filter. The intake assembly is connected in flow communication with a suction line which guides waste grease into the pump. A pressure line then guides the pumped waste grease out of the pump and to a waste grease storage container which may be connected to the system. The suction line, pump, and pressure line are heated to prevent solidification of the waste grease as it flows through the system.

Abstract: A fuel filter assembly for the filtering of a flow of fuel includes an outer shell defining a hollow interior and, at a first end, a fuel inlet passageway, a fuel outlet passageway, and a water collection region. The outer shell has a second end which is open and constructed and arranged to be closed by a removable lid. Installed within the hollow interior of the outer shell is a fuel filter cartridge which includes a filter element constructed and arranged for water separation. The filter element defines an interior space into which a fuel transfer pump is installed and which is operable to push fuel through the filter element. Included as part of the fuel filter assembly is a filter detector control circuit including a normally-open filter detector switch which is electrically and operably coupled to the fuel transfer pump. A plunger on the filter detector switch must be depressed in order to close the circuit and enable operation of the fuel transfer pump.

Abstract: A fuel filter comprises a filter head having an inlet and an outlet. A filter element is connectable to a nipple portion in the filter head. An actuating projection supported by the element is engageable with a valve element in the nipple portion to open flow through the nipple portion when the filter element is attached to the filter head. The filter head includes an annular threaded peripheral flange, and the element includes a corresponding annular threaded peripheral flange which together cooperate to secure the element to the head. A manual priming pump in the filter head includes a pair of check valves to control the flow of fluid through the head when priming the filter. A heater assembly includes a heater pan which encloses the heater elements and also includes the nipple portion, formed unitary therewith.

Abstract: A liquid cooling system 10 for cooling liquids including a housing 11, a housing cover 12, and a liquid cooler 13. The housing 11 is sealingly fastened to the housing cover 12. The liquid cooler 13 is composed of cooling plates 19 stacked one on another. The cooling plates 19 sealingly separate a liquid space 20 from a coolant space 21. The coolant spaces 21 are connected by openings 26 which are disposed on projections 27 on the plates 19. In the housing 11 there is a liquid inlet 15, a liquid outlet 16, a coolant inlet 17 and a coolant outlet 18. The liquid inlet 15 leads into a housing volume 14 on an uncooled side 31 which is formed by the housing 11 and the liquid cooler 13. The uncooled side 31 lies opposite a cooled side 32 which communicates with a return passage 22 extending through the liquid cooler 13. The liquid inlet 15 is sealingly separated by a seal arrangement 25 from the coolant inlet 17 and coolant outlet 18.

Abstract: A liquid filter, especially including an oil filter cartridge 12 which is contained in a pot-shaped or cylindrical housing 10 with threaded cover 11, into which a cooler 13 is preferably installed. An outlet opening 37a is contained in the oil cooler which facilitates complete emptying of the cooler when the filter is changed. In this way a complete replacement of the oil can be performed, so that the replaced oil is not contaminated from the outset by residues of the old oil. Thus, service intervals can be lengthened. To prevent a short circuit of the outlet opening 37a during operation, the opening is closed by a valve stem 33 coupled to the threaded cover and opened by unscrewing the cover.

Abstract: An oil filter assembly comprises: a cylindrical main housing having an open upper end; a cover assembled with an upper end thereof; an impeller housing disposed beneath a lower surface thereof; a mixer disc fixedly inserted in the impeller housing; an impeller disposed on an upper surface of the mixer disc to mix foreign material contained in an oil; an adjust housing disposed under the impeller to supply the oil when an engine is operated; a filter member for filtering off the foreign material from the oil supplied from the impeller; an overflow valve for controlling a quantity of introduced oil and capturing metallic foreign material from the oil supplied from the impeller by means of a magnetic force; and a fixing-and-oil-discharging bolt for assembling elements disposed in the main housing by means of the cover and supplying the oil filtered and cleaned to parts of an engine.

Abstract: An oil cooler has a tube disposed in a cooling water passage and defining an oil passage therein, an oil side inner fin brazed to an inside wall of the tube in the oil passage, and a water side inner fin brazed to an outside wall of the tube in the cooling water passage. The thickness Tw of the water side inner fin is thicker than the thickness To of the oil side inner fin. The water side and oil side inner fins are corrugated fins.

Abstract: Described is an oil filtration apparatus that includes external vanes 120 and associated outer flow passages 140 for allowing a heat exchange to occur between oil passing therein and cool air that passes by the vanes. A manually rotatable valve 154 is provided at one end of the filtration apparatus for controlling the flow of oil through the manifold. In a first position, the valve allows oil to flow through the outer flow passages through the end cap 152 and into an inner flow passage 142 where it is filtered before flowing through a central passage 134 and out the flow manifold. In a second position, the outer flow passages are blocked so that oil flows directly into the inner flow passage. A pressure sensitive valve 164 is provided in the end cap so that when the filter becomes clogged, oil is diverted directly to the central flow passage bypassing the filter.

Abstract: In order to make more compact drive train and engine configurations, filter media and oil coolers are mounted within transmission oil pans and/or lubricating oil pans. Preferably, the heat exchanger is mounted on the upstream side of the filter media to cool the oil before the oil passes through the filter media and is recirculated by an oil pump. It is also preferable that both the filter media and the heat exchanger are integrally molded with a panel which is removably inserted into the oil pan to separate the oil pan into a first chamber, which is an upper chamber, and a second chamber, which is a lower chamber, so that oil drained into the upper chamber pools in the lower chamber and is recirculated back through the transmission or engine by a suction tube communicating with the lower chamber.

Abstract: A filter assembly for use with a bottle having a substantially circular cross-section neck or open end includes a cap for closing the bottle neck or open end including an upper surface, and a manual valve associated with an outer substantially liquid impermeable housing may be operatively connected to the cap at an upper end of the housing and has a number of substantially radially extending openings adjacent the upper end portion to allow liquid to flow into a substantially annular open cavity within the housing. The cavity substantially radially surrounds an inner at least primarily radial flow filter element, such as a carbon/plastic matrix which removes chlorine from drinking water. A treating element is positioned so that water flowing through the openings and into the cavity is treated, either by removing contaminants from the water, or by chilling it.

Abstract: A process and a corresponding device for filtering plastics in an injection molding machine having a plasticizing unit and a mold cavity. A slide having a receptacle for a filter element is arranged between the plasticizing unit and the mold cavity. A piston cylinder displacing unit is mounted parallel to a principal axis of the plasticizing unit so as to be slideably contactable by the slide holding the filter element. The displacement unit has a filter holder surrounded by a filter preheater for the insertion and preheating of a fresh filter element. The slide is displaced so that the filter receptacle in the slide corresponds to the filter holder in the displacement unit thereby enabling a spent filter element to be ejected while simultaneously inserting the fresh filter element into the receptacle. The slide is then returned to its operating position in which the filter element is acted upon by the plastic casting substance.

Abstract: A materials treatment system which initially separates liquid and solid components with a separator. The system can be advantageously utilized for household sewage handling, however various components have other applications. Once the separator separates the solids and liquids, a fire tube combusts the solids with microwaves. The liquids exiting the separator are treated in a liquid treatment system which includes additional particle filtration/separation, treatment of the liquids with an oxidant liquid, and an ultraviolet treatment. An advantageous microwave cavity assembly is also provided for dehydration/combustion of solids exiting the separator and/or for solids filtered from liquids in the liquid treatment system.

Abstract: A combined power steering hydraulic fluid reservoir and cooling unit (12, 112) includes a housing (14, 114) having a reservoir tank (16, 116) for receiving and collecting hydraulic fluid from a power steering gear (18) and holding the hydraulic fluid in readiness for supply to a hydraulic pump (20). The housing has a heat exchanger (22, 122) with a cooling liquid flow path therethrough in heat transfer relation with the hydraulic fluid, eliminating a hydraulic fluid cooler otherwise connected in series between the power steering gear and the reservoir tank, and eliminating two extra hose connections therefor.

Abstract: An oil reclamation device includes a full flow filter (10) fitted around a partial flow filter (12) within an open-ended casing (8). The open end of the casing is capped by a housing defining a vaporization chamber (6). In normal operation, oil flows from oil passage (14) through the full flow filter (10) to a branched leg (22). A metering jet (34) provided in the branched leg allows a minor portion of the oil to flow through the partial flow filter and then into the vaporization chamber. The full flow filter extracts solid contaminants having a particle size of 15 microns or greater. The partial flow filter extracts solid contaminants of 1 micron or greater. The filter element of the partial flow filter is composed of compressed cotton fibers and preferably has a higher density in an upper end adjacent the vaporization chamber. In the vaporization chamber, liquid contaminants are removed from the minor portion by a heating element (72).

Abstract: A materials treatment system which initially separates liquid and solid components with a separator. The system can be advantageously utilized for household sewage handling, however various components have other applications. Once the separator separates the solids and liquids, a fire tube combusts the solids with microwaves. The liquids exiting the separator are treated in a liquid treatment system which includes additional particle filtration/separation, treatment of the liquids with an oxidant liquid, and an ultraviolet treatment. An advantageous microwave cavity assembly is also provided for dehydration/combustion of solids exiting the separator and/or for solids filtered from liquids in the liquid treatment system.

Abstract: A filter and heat exchanger device comprises a substantially cylindrical housing (11) accommodating a tubular heat exchanger body (31) having fins (35) on the outer side thereof and an axial through passageway (32, 33) communicating with secondary-liquid inlet and outlet ports (19, 20). A heat exchanger compartment (26) inside a cylindrical partition (28) in the housing (11) accommodates the heat exchanger body (31) and a filter compartment (27) outside the partition accommodates a filter body (30). The two compartments (26, 27) communicate with one another and form successive sections of a primary-liquid flow path extending between primary-liquid inlet and outlet ports (17, 18). An elongate opening in the partition (28) is substantially coextensive with the heat exchanger body (31) and defines a flow passage (29) which interconnects the heat exchanger and filter compartments (26, 27).

Abstract: For processing raw water into drinking water, a dispensing apparatus is provided with a filter member disposed in a water tank through which the raw water is made to flow. The filter member captures microorganisms contained in the raw water. A heating arrangement is thermally connected to the filter member and heats the filter member to kill the microorganisms that is captured by the filter member. It is preferable that the dispensing apparatus further provided with a adsorber member for adsorbing unfavorable substances contained in the raw water.

Abstract: A medium is separated into a solids-containing component and a liquid component. The latter flows through a filter. Clogging of the filter is avoided in that the latter is moved relative to the medium perpendicularly to the flow direction of the liquid through the filter element. At the same time, the medium is agitated.

Abstract: A waste treatment device for treating waste having both liquids and solids therein includes a primary waste reservoir, a solids processor operably connected to the primary waste reservoir to receive waste therefrom in a manner to permit combustion of a substantial part the solids and generate a resultant waste, ash and gas, a secondary waste reservoir operably connected to the solids processor to receive the resultant waste, and a liquid processor operably connected to the secondary waste reservoir to receive the resultant waste in a manner to separate at least a part of the resultant waste into an environmentally safe water and resultant waste concentrate.

Abstract: A combined power steering hydraulic fluid reservoir and cooling unit (12, 112) includes a housing (14, 114) having a reservoir tank (16, 116) for receiving and collecting hydraulic fluid from a power steering gear (18) and holding the hydraulic fluid in readiness for supply to a hydraulic pump (20). The housing has a heat exchanger (22, 122) with a cooling liquid flow path therethrough in heat transfer relation with the hydraulic fluid, eliminating a hydraulic fluid cooler otherwise connected in series between the power steering gear and the reservoir tank, and eliminating two extra hose connections therefor.

Abstract: A process for separating oil from a lubricant composition containing solid particles. The contaminated lubricant composition is mixed with liquid or supercritical CO.sub.2 before the lubricant composition and CO.sub.2 mixture is filtered through a filter medium. The CO.sub.2 is then evaporated, leaving an oil residue. Mixing the lubricant composition with CO.sub.2 before filtration prevents the filter medium from being blinded by solid particles.

Abstract: The present invention relates to an arrangement in an oil filter with integral oil cooler with a filter material (7) in the form of a tubular casing, which is enclosed in a housing (1). The latter is defined by a cylindrical wall (4) and two ends (5, 6), one (5) of which can be opened for changing the filter material (7). Two essentially concentric annular circulation chambers (8, 9) are arranged in front of the cylindrical wall. Of these the one that connects with the inside of the housing (12) is intended to accommodate the flow of oil and the other which has an inlet opening (10) and an outlet opening (11) is intended to accommodate the flow of coolant. The coolant circulation chamber (8), which is the outer of the two circulation chambers, is divided by a partition wall (25) into two essentially equal sub-chambers (8a, 8b) into each of which an opening (10, 11) respectively opens.

Abstract: A fuel filter constructed and arranged for fuel-water separation which is designed with an integral fuel pump includes a unitary housing designed with a fuel filter cavity for receipt of a fuel filter cartridge, and a pump receptacle cavity for receipt of a fuel pump. A separating wall is disposed between the fuel filter cavity and the fuel pump cavity and this wall defines a flow passageway for fuel flow communication between the fuel pump and the fuel filter. Included as part of the fuel filter assembly is a lid designed to attach over the fuel filter cavity of the unitary housing and a lid designed to attach over the pump receptacle cavity of the unitary housing. The combining of the fuel filter cartridge and the cooperating fuel pump within the same unitary casting provides design efficiencies and economies.

Abstract: A method and an apparatus for cleaning filters contaminated by hot-melting resins and polymers in situ, without removing the filtering elements. The method comprises a preliminary step, during which the circulation of the product to be filtered through the filter to be cleaned is interrupted, and a draining step, during which a pressurized draining fluid is passed through the filter in order to empty the filter of the residual product. A filter cleaning step is then performed during which a cleaning fluid, constituted at least partially by superheated steam, is passed through the filter. The fluids used to clean the filter are then subjected to treatments to eliminate pollutants.