Abstract: A delivery device (2) for delivering fuel, having a delivery pump (3) and a fuel filter (7), has a bypass line (9) which is conducted past the fuel filter (7). When new, the delivery pump (3) delivers fuel through the fuel filter (7). After the fuel filter (7) has become clogged with dirt, the fuel is delivered by the bypass line (9) through a second fuel filter (10). By this means, pollution of the environment with fuel is kept particularly low.

Abstract: A fuel injection system has a low-pressure pump for withdrawing fuel from a tank and a high-pressure pump, which is supplied by the low-pressure pump and has camshaft-actuated pump elements. An on-off valve is connected on the inlet side to the pressure side of the low-pressure pump and on the outlet side, is connected on the one hand to a camshaft chamber of the high-pressure pump and on the other hand, is connected to the suction side of the low-pressure pump. At a first pressure threshold, a spring-loaded valve piston of the on-off valve opens a connection between the low-pressure pump and the camshaft chamber and at a relatively higher second pressure threshold, opens a connection between the pressure side and the suction side of the low-pressure pump. A throttle bore in the bottom of the valve piston serves to ventilate the low-pressure system.

Abstract: An apparatus and a method of improving performance characteristics of an internal combustion engine is provided which includes electronically coupling a fuel boost controller to a fuel delivery solenoid of a fuel injector. The boost controller measures a timed release of fuel from an activated fuel delivery valve of the fuel delivery solenoid into a cylinder and activates the fuel delivery valve an extended amount of time over a programmed time for injecting additional fuel over the programmed amount into the cylinder to improve the performance characteristics.

Abstract: An electrically conducting fuel filter mechanism for a fuel supply system for an internal combustion engine. The housing for the fuel filter has a conductive inner or core layer and at least one non-conductive outer layer positioned adjacent the fuel. The conductive layer is made from a non-conductive material with conductive fibers or powders mixed in it, while the non-conductive layer is free from the conductive materials. Any electrostatic or electrical charge buildup in the fuel filter, fuel or housing, will be dissipated through the inner non-conductive layer forming conductive paths directly to the conductive layer. This prevents any further charge buildup and pitting.

Abstract: A fuel supply system for supplying an internal combustion engine has a consumption-controlled fuel feeding module which at a suction side is connected with a supply tank and at the pressure side is connected with an internal combustion engine. At pressure side of the fuel feeding module a return conduit is leads to at least one pump for filling of the fuel feeding aggregate. A preliminarily supplied return is blockable by a switchable adjusting member which adjusts the return quantity with an open switchable adjusting member by means of a throttle element in all operational conditions above a minimal pump consumption.

Abstract: The present invention relates to a pump device for a gas oil tank of a motor vehicle, the device comprising a pump (10) and a filtering strainer (20) placed at the intake of the pump (10), and being characterized by the fact that it includes a valve (100) disposed in a passage (22) formed through the strainer (20) so as to close said passage (22) in normal operation, the valve (100) being adapted to open automatically when the pressure difference between the outside of the strainer (20) and the inside thereof exceeds a threshold because of the strainer (20) becoming clogged.

Abstract: The present invention finds application in fuel injectors having the fluid control passage to the needle valve member coupled to another fluid control passage within the fuel injector. Engineers have learned that decoupling the control passage to the needle valve member with other fluid control passages can allow for greater control of injection events. In addition, by decoupling these fluid passages, it is believed that the fuel injector will perform more like a nominal fuel injector, especially under cold start conditions. Therefore, the present invention utilizes a dual control valve member to independently control fluid flow to the back of the needle valve member and fluid flow to various other components of the fuel injector.

Abstract: A fuel pump module for a fuel tank in a vehicle includes a reservoir adapted to be disposed in the fuel tank and a partition disposed in the reservoir to divide the reservoir into a fuel sensing chamber and a fuel storage chamber. The fuel pump module also includes a conduit conducting return fuel from an engine of the vehicle to the fuel storage chamber of the reservoir. The fuel pump module includes a fuel pump disposed in the reservoir and having an inlet disposed in the fuel sensing chamber and an outlet disposed in the fuel storage chamber. The fuel pump module further includes a fuel usage priority valve to allow fuel from the fuel storage chamber to flow to the fuel sensing chamber to provide the inlet of the fuel pump with fuel from the fuel storage chamber.

Abstract: A fuel feed module for a motor vehicle has a storage container adapted to be arranged in a fuel supply tank of a motor vehicle, a feed aggregate arranged in the storage container and having a drive formed as an electric motor for driving fuel from the storage container to an internal combustion engine of a motor vehicle, means forming at least approximately hollow cylindrical receptacle arranged on the storage container, formed so that the feed aggregate is insertable into the receptacle in direction of its longitudinal axis, at least one mounting element fixed in the feed aggregate in direction of its longitudinal axis, the mounting element being formed as a cover part arranged on the feed aggregate and being at least partially electrically conductive.

Abstract: A fuel supply device for an internal combustion engine has a supply container, at least one feed pump for supplying a fuel from the supply container, a high pressure pump to which the fuel is supplied from the supply container by the feed pump, so that the fuel is supplied under high pressure at least indirectly to injection points of an internal combustion engine, the feed pump being driven mechanically by the internal combustion engine, and a further feed pump provided additionally to the mechanically driven feed pump and supplying the fuel from the supply container to the high pressure pump, the further feed pump having an electric drive and being operable independently from the mechanically driven feed pump.

Abstract: The solenoid valve has a fuel feed conduit, and a shutter in the form of a ball controlled by an electromagnet and cooperating with a conical seat in the conduit. The conduit has a fuel filter for preventing particles of dirt from getting between the seat and the shutter, without causing an excessive fall in fuel pressure. The filter is defined by a metal plate having a number of holes of about 0.1 mm in diameter and formed using laser technology; and the plate is fitted to the opposite end of the conduit from the seat.

Abstract: An integrated fuel system unit (10) comprises a two-stage fuel pump (16) and fuel filter (34). The fuel filter is interposed between the first and second pump stages (S1,S2) so fuel flowing between the stages is drawn through the filter. A spiral-wound fuel line (44) delivers fuel from a fuel inlet (18) to the first pump stage. Water is circulated about the fuel line to cool the fuel flowing therethrough. A fuel pressure regulator (60) in an outlet (20) of the unit diverts fuel from the engine back to a cavity (36) in which the filter is housed if an overpressure condition occurs. This fuel is then mixed with the fuel flowing between pump stages. Water also collects in the cavity and a solenoid (74) controlled water passage (72) allows this water to be entrained with fuel flowing to the second pump stage for the water and fuel to be mixed together and pumped to an internal combustion engine to be combusted therein.

Abstract: Onboard refueling vapor recovery canister for a gasoline-powered vehicle including an unequally-divided carbon bed, a vent solenoid, and a high-capacity, self-cleaning vent filter. Integral configuration of the canister reduces its size and also increases the allowable carbon volume over prior art canisters, permitting use of a lower grade carbon at a significant cost savings while meeting all working capacity requirements. The filter box has an air inlet port and contains a high-efficiency filter wrapped around a feature enclosing a solenoid for opening and closing the air flow through the canister. Wrapping the filter increases the available surface area by more than 50% over that of a flat filter. Outward air flow during refueling partially backflushes the filter, thereby extending the useful life of the filter media.

Abstract: In a fuel supply system for an internal combustion engine having a fuel tank for liquid fuel, a fuel pump which draws fuel from the fuel tank and pressurized the fuel to an injection pressure at which the fuel is made available to the internal combustion engine, a fuel-fractionating device which produces at least one liquid fuel fraction from the fuel, and an accumulator which receives the liquid fuel fraction from the fuel-fractionating device, stores it and makes it available to the internal combustion engine, the fuel fraction made available and the fuel made available being fed to the internal combustion engine by the fuel supply system as a function of demand, the accumulator is a pressure accumulator and includes pressure-generating means for pressurizing fuel fraction in the pressure accumulator to the injection pressure.

Abstract: A fuel filter drain system continuously pumps filtered and water from a locomotive diesel engine fuel filter. A ball valve disposed along the drain line between the fuel filter and the fuel tank is modified to include a ball valve that is approximately 0.031 inches in diameter or sufficiently small to purge the fuel and water, and also maintain fuel pressure within acceptable limits.

Abstract: A fuel system for an internal combustion engine, the fuel system including a fuel tank, a fuel pump communicating with the fuel tank, a fuel manifold downstream of the fuel pump, and a return line downstream of the fuel pump, the return line communicating with the fuel tank. The fuel system also includes a self-relieving fuel filter assembly having a filter member. The self-relieving fuel filter assembly communicates with the return line and is variable between a first state, wherein fuel passes through the return line and the filter member before returning to the fuel tank, and a second state, wherein fuel passes through the return line without passing through the filter member before returning to the fuel tank. The self-relieving fuel filter assembly therefore permits the continuous passage of fuel through the return line even when the filter member becomes plugged.

Abstract: A fuel shut-off safety device is mounted in a fuel injection system for an internal combustion engine. The fuel shut-off safety device includes a cylindrical body having a fuel passage and a valve seat, a piston disposed to slide in the fuel passage, a valve body to shut off the fuel passage when it is seated on the valve seat, a center bore connected to the fuel inlet, and an aperture connecting the center bore and the fuel passage, and a compression coil spring for biasing the piston to unseat the valve body from the valve seat.

Abstract: A fuel delivery module for an automotive fuel delivery system includes a reservoir and a fuel pump. The fuel pump delivers fuel from the tank to the reservoir via a fuel tank inlet and reservoir outlet and from the reservoir to the engine via a reservoir inlet and engine outlet. The reservoir is formed with a plurality of contaminant traps for collecting contaminants contained in the fuel as the fuel is pumped through the reservoir such that the contaminants settle unto said contaminant traps thereby reducing the amount of contaminants entering the reservoir inlet.

Abstract: A fuel supply apparatus for installation in a fuel tank includes a fuel pump, a housing, and a filter element disposed in the housing and having an upstream side communicating with the discharge port of the fuel pump. A check valve communicates with a downstream side of the fuel filter, and a pressure regulator communicates with the upstream side of the filter element. A sedimentation flow path may be provided for removing sediment from fuel discharged from the pressure regulator. The sedimentation flow path may be substantially cylindrical vortex spaces between fins disposed on the inner periphery of the pump holder and has blind holes at the bottom for trapping the sediments.

Abstract: A fuel system pressure valve includes is interposed in a fuel line between a fuel pump and a fuel rail for controlling fuel flow from the pump to the rail and from the rail to the pump. The valve includes a valve housing having a pair of half sections to form a valve chamber. A check valve is mounted in the chamber and is operable to allow fuel flow from the pump to the fuel line upon the fuel pump delivering a predetermined fuel pressure to the fuel line. A pressure relief valve is mounted within the chamber parallel to the check valve and is operable to allow fuel in the fuel line to flow through the housing to the fuel pump upon fuel pressure in the fuel line exceeding a predetermined relief pressure. In addition, a parasitic flow orifice is mounted in fluid communication with the valve chamber and allows fuel in the valve chamber to flow through the orifice to a fuel tank when valve chamber pressure is below a predetermined valve chamber pressure.

Abstract: A high flow rate fuel vapor vent and rollover valve assembly with a float valve that provide a progressive closing of a vapor outlet to control the venting of fuel vapors from a fuel tank and the addition of liquid fuel to the tank. The float closes a portion of the vapor outlet in response to liquid fuel at a first level in a vehicle fuel tank. A body completely closes the vapor outlet in response to rollover attitudes of the vehicle. One or more separate baffles are constructed and arranged to prevent the escape of liquid fuel through the vapor outlet.

Abstract: The Fuel supply system reduces fuel quantity initially supplied and ineffective residual quantity of fuel. A throat in the shape of a passage is provided at a bottom portion of a sub-tank that supplies fuel from the fuel tank to the interior of the sub-tank by a jet pump. The throat has a suction port communicating with the exterior of the sub-tank and a supply port communicating with the interior of the sub-tank. The throat is inclined with respect to a bottom surface of the tank so that the height of the throat increases gradually from the suction port toward the supply port. The sub-tank has a check valve for opening and closing the supply port. This check valve prevents the fuel in the sub-tank from flowing out to the exterior of the sub-tank through the throat and becomes substantially vertical during valve closing.

Abstract: A fuel supplying apparatus has a fuel pump for pumping fuel stored in a fuel tank. The fuel pump supplies fuel from the fuel tank to outside the fuel tank via a take-up portion having a fuel take-up opening that opens in the fuel in the fuel tank and a gas take-up opening that opens in a space formed above the fuel liquid surface in the fuel tank. Fuel vapor formed in the fuel tank can be supplied to outside the fuel tank without being released to the atmosphere, by using a minimal number of component elements.

Abstract: A fuel system for fluidly connecting a fuel tank with an engine includes a low-pressure fuel circuit fluidly connected to the fuel tank. A high-pressure fuel circuit is supplied with fuel by the low-pressure fuel circuit, and is fluidly connected to the engine. A priming fuel circuit includes a priming fuel conduit and a priming valve. The priming fuel conduit has a first segment and a second segment. The priming valve has an inlet and an outlet. The first segment of the priming fuel circuit fluidly interconnects the low-pressure fuel circuit and the outlet of the priming valve. The second segment of the priming fuel circuit fluidly interconnects the high-pressure fuel circuit and the inlet of the priming valve. The priming valve is operable to control a flow of fluid through the priming fuel conduit to thereby selectively fluidly connect and disconnect the high-pressure fuel circuit and the low-pressure fuel circuit.

Abstract: A fuel delivery system of an automobile that eliminates the vapor canister and includes leak detection of the fuel tank while also permitting failsafe operation when there is a leak in the fuel tank. The fuel tank includes a flexible member defining a first chamber that stores fuel in a chamber devoid of air while a second chamber is at ambient pressure. The fuel system can be formed as a module for installation or retrofitting to various applications using an internal combustion engine, including automobiles. A method of operating the fuel system to purge fuel vapor is also disclosed. A method of preventing fuel leaks is additionally disclosed.

Abstract: A fuel feed device in a motorcycle fuel injection device has excellent normal travel operation and hot restart property after high speed travel. A fuel case A has a fuel introduction chamber 4 to which a fuel introduction passage 6 is opened, a pump receiving chamber 5 for receiving a fuel pump P and a filter 9 on a longitudinal axis X—X and further has a fuel discharge passage 11 and a fuel discharge chamber 8 to which the fuel introduction passage 17 is opened. The longitudinal axis X—X is arranged substantially in a vertical direction. The fuel introduction chamber 4 of the fuel case A is disposed below a bottom surface Ta of a fuel reservoir T.

Abstract: A valve arrangement is provided for a feed line to supply fuel from a tank to a combustion engine consisting of a valve housing with an inlet channel and outlet channel, and a valve with a movable valve head to seal the outlet channel from the inlet channel, whereby a feed pump is assigned to the feed line, and the valve head is in closed position when there is no feed pressure from the feed pump. The danger of feed line leakage for combustion engines that burn liquid fuel is eliminated using a coaxial second valve using no additional space to solve the problem. The other essentially coaxial valve within the main valve is in open position opposite the feed direction when the pressure at the outlet channel is greater than the feed pressure. The valve arrangement functions as a check valve when the combustion engine is running, and as an overpressure valve when it is off.

Abstract: The invention provides a fuel injection apparatus in an internal combustion engine for an outboard machine which improves a pump performance of the high pressure fuel pump and accurately and stably supplies a fuel from a fuel injection valve. There is provided an injection fuel flow passage system in which a fuel within a vapor separator V is sucked and discharged by a high pressure fuel pump, a high pressure fuel discharged from the high pressure fuel pump is supplied to a fuel distribution pipe provided with a fuel injection valve and a return fuel of a pressure regulator connected to the fuel distribution pipe is returned into the vapor separator via a return fuel passage. A heat exchanger is arranged in the injection fuel flow passage system, and a cooling water branched from a discharge passage of a cooling water pump for cooling an engine is supplied to the heat exchanger via a cooling water introduction passage and is discharged toward the outside via a cooling water discharge passage.

Abstract: A fuel supplying apparatus for a vehicle for supplying fuel including an in-tank type fuel pump 7 provided in a sub-tank 5 inside a main tank 1 and a tubular fuel holding case 21 surrounding a suction filter portion 20 of this fuel pump 7 and having an opening portion 21B which is open in an opposite direction to a forwardly moving direction of the vehicle, so as to supply fuel 2 to outside the main tank 1 through a delivery pipe 16 by means of the fuel pump 7. The fuel 2 can be supplied to an engine even during the quick braking of the vehicle when the amount of fuel 2 is small without increasing the number of component parts of the apparatus.

Abstract: A high-pressure fuel pump is provided for an internal combustion engine having an intake system and an exhaust system installed to the front and back of the engine, respectively. The fuel pump is located adjacent to a front upper part of the engine so as to be driven by a camshaft, but is positioned in an inclined position relative to the engine instead of a vertical position. This arrangement shifts the fuel pump backward in installing position with an effect of eliminating mechanical interference of the fuel pump with an engine compartment hood, and provides a long distance between the fuel pump and a dash panel behind the fuel pump with an effect of lowing energy of an impact applied to the fuel pump from the dash panel when the engine moves rearward due to a front-end collision.

Abstract: A fuel delivery unit for a motor vehicle is disclosed. The fuel delivery unit has a fuel pump (5) which is clamped in between a retaining part (1) and an elastically configured pump-retaining means (6) which is clipped on the retaining part (1). The retaining part (1) is open toward one side, so that the fuel pump (5) can be fitted once the delivery unit has been preassembled. It is thus possible to replace the fuel pump (5) in the case of a defect.

Abstract: A fuel delivery module with an integrated fuel filter is disclosed. The fuel delivery module can be mounted in a fuel tank for supplying fuel from the fuel tank to an engine. The fuel delivery module includes a fuel reservoir, a sealed main fuel filter housing, a fuel pump, a pressure regulator, and a jet pump. The main fuel filter housing is mounted to the fuel reservoir and defines a main fuel filter chamber that contains a main fuel filter. The fuel pump is located within the fuel reservoir for pumping fuel from the fuel reservoir through a fuel pump outlet conduit and into the main fuel filter chamber. A filter housing outlet conduit is provided for routing fuel from the main fuel filter chamber to the engine. The pressure regulator is in fluid communication with the main fuel filter chamber and a jet pump fuel inlet conduit for routing a portion of fuel from the main fuel filter chamber and to the jet pump fuel inlet conduit when a threshold pressure is reached in the main fuel filter chamber.

Abstract: A system for supplying an internal combustion engine with fuel present in a tank, in which a feed segment for the fuel extends from a feed pump through a fuel filter, is characterized in that the fuel filter includes a prefilter and a fine filter. It is especially suitable for supplying an internal combustion engine by direct injection.

Abstract: A liquid filter (10) with a built-in pressure regulator (11) for fuel is proposed, wherein the pressure regulator (11) with its diaphragm (41) is built on the housing (12) on a component (18) on the front with at least one connection (19). The disk-shaped diaphragm (41) has a single clamping site (39) on its external circumference and a centrally arranged movable closure closure member (42). The diaphragm (41) is acted upon by pressure in a pressure chamber (45) connected with the clean side against the force of a spring (49) in a gas-filled spring chamber (48). The integration of the pressure regulator (11) in the housing (12) permits a simple, compact, cost-effective construction of the liquid filter (10), through whose valve (44) in the pressure regulator (11) only cleaned fuel flows and which is insensitive to backpressure in the tank connection (17).

Abstract: In a pressure-maintaining device for a fuel supply system of an internal combustion engine (1) of a motor vehicle, a pressure reservoir (5) is arranged in a supply line (7) leading to the internal combustion engine (1). The pressure reservoir (5) has a pressure chamber (13), which is bounded by a movable wall (14) that is pretensioned by a compression spring (15). The position of the movable wall (14) is registered by a displacement transducer (18) and forwarded to a regulating device (12). The regulating device (12) regulates the rotational speed of a fuel pump (3) as a function of the position of the movable wall (14).

Abstract: A fuel injector pump for an internal combustion engine including a camshaft-driven fuel delivery plunger, a solenoid valve for controlling transfer of liquid fuel from a fuel plunger cavity to a fuel injector nozzle, and a snubber valve located between the fuel injector nozzle and the plunger whereby unrestricted fuel flow is distributed to the injector nozzle and reverse flow from the nozzle to the plunger chamber is restricted so that cavitation in the fuel delivery passage extending to the nozzle will be avoided and undesirable pressure peaks at the fuel pump are avoided.

Abstract: A subtank is connected to a bracket fitted in an opening of a fuel tank via a L-shaped sliding plate. The L-shaped plate is movably supported by the bracket, and the subtank is rotatably supported by the L-shaped plate. A spring force is applied to the subtank toward the fuel tank by a spring via the L-shaped plate. Accordingly, a fuel supply apparatus is easily installed in a flat fuel tank without enlarging the opening of the fuel tank.

Abstract: A fuel filter 10, constructing a supply unit 8, comprises a filter case 11 having an electric conductivity and a filter element 14. The filter case 11 is formed with an inside wall portion 11A and an outside wall portion 11B into a U shape in lateral cross section, so as to enlarge a contact area contacting with fuel in a fuel tank. The fuel discharged from the fuel pump 9 flows into a fluid chamber 15 of the fuel filter 10, and then be supplied from a fuel supply conduit 20 through a fuel flow passageway 12A to the outside. At this time, static electricity charged in the filter case 11 is discharged through its outer peripheral surface into the surrounding fuel having a slight electric conductivity.

Abstract: A fuel system, particularly a diesel fuel system for a car engine (12), includes a fuel filter (11). The filter (11) has an air outlet (18, 22) spanned by an oleophobic filter medium (26). This allows significant volumes of air to be vented while not wetting out when contacted by fuel and so allowing only very small quantites of fuel to pass the filter medium (26).

Abstract: A safety system for use in a motor vehicle fuel system in which fuel flow components generate electrostatic charges. The system includes a fuel pump that has a housing that is electrically connected to ground potential and an electrically conductive safety device that connects each fuel flow component to the fuel pump housing for discharging static electricity to ground through the fuel pump housing.

Abstract: A fuel pump module with a housing which carries a fuel pump and a fuel filter between an outlet of the fuel pump and an outlet of the module housing to filter fuel discharged from the fuel pump before it is delivered under pressure to an operating engine. The fuel filter preferably provides the final filtering of the fuel before it is delivered to the engine and preferably has a large surface area to extend the life of the fuel filter in use. The fuel filter is preferably generally cylindrical and has a casing defining an interior opening in which the fuel pump is received with a seal to prevent fuel leakage between them. Preferably, the components of the fuel pump module are generally telescopically and coaxially fitted together to provide a compact fuel pump module while still providing a large surface area fuel filter.

Abstract: A pressure control valve for installation in a supply line between a pump work chamber of a fuel injection pump and an injection point in the engine to be supplied. A valve body that has a first valve seat and an axial through conduit in which a pressure control valve closing member is guided. The pressure control valve closing member opens toward the injection point counter to the force of a first valve spring and has a sealing face that cooperates with the first valve seat, as well as with an axial through bore in the pressure control valve closing member. The bore can be closed by a back-flow valve that opens in the direction of the pump work chamber and has a second valve spring. For an optimal, unthrottled fuel flow through the pressure control valve, fuel conduits are respectively formed between the radially outer circumference faces of the first and second valve springs and the housing walls that encompass them, through which conduit the fuel flows in an unthrottled fashion.

Abstract: A fuel injector comprises first and second housing parts, the first housing part being located within a bore or recess formed in the second housing part, the housing parts defining therebetween an inlet chamber, a delivery chamber axially spaced from the inlet chamber, and a filtration flow path interconnecting the inlet and delivery chambers to remove particulate contaminants from the flow of fuel therebetween.

Abstract: A fuel injection valve for internal combustion engines, having a fuel inlet conduit, which originates at a connection stub and discharges at at least one injection opening. A rodlike fuel filter is inserted into the fuel inlet conduit and is guided in the inlet conduit on opposite axial ends. Two groups of longitudinal grooves are formed in the jacket face each of which are axially closed on one end. The first group of longitudinal groove originate at an upper end face of the fuel filter remote from the injection opening, and the second group originates at a lower fuel filter end face oriented toward the injection opening. The size of the flow cross section at the fuel filter and the size of the flow cross section of the inlet conduit in the region downstream of the fuel filter amounts to from approximately 5-10 times the size of the total flow cross section of all the injection openings in the fuel injection valve.

Abstract: A pressure compensating valve is configured as a pressure control valve for a fuel tank. The valve body is operatively connected to a membrane via a two-arm valve lever so that, when there is an underpressure in a control chamber, which is bounded by the membrane, the membrane is displaced in the direction toward the lever. The lever is then pivoted and opens the valve for pressure compensating the fuel tank by allowing air to flow in.

Abstract: A fuel delivery module for an automotive fuel delivery system includes a reservoir and a fuel pump. The fuel pump delivers fuel from the tank to the reservoir via a fuel tank inlet and reservoir outlet and from the reservoir to the engine via a reservoir inlet and engine outlet. The reservoir is formed with a plurality of contaminant traps for collecting contaminants contained in the fuel as the fuel is pumped through the reservoir such that the contaminants settle unto said contaminant traps thereby reducing the amount of contaminants entering the reservoir inlet.

Abstract: A fuel filter 10, constructing a supply unit 8, comprises a filter case 11 having an electric conductivity and a filter element 14. The filter case 11 is formed with an inside wall portion 11A and an outside wall portion 11B into a U shape in lateral cross section, so as to enlarge a contact area contacting with fuel in a fuel tank. The fuel discharged from the fuel pump 9 flows into a fluid chamber 15 of the fuel filter 10, and then be supplied from a fuel supply conduit 20 through a fuel flow passageway 12A to the outside. At this time, static electricity charged in the filter case 11 is discharged through its outer peripheral surface into the surrounding fuel having a slight electric conductivity.

Abstract: A fuel pressure regulator and fuel filter module constructed to be connected to a vehicle fuel tank has a body with an integral, radially extending flange constructed to overlie and to be attached to the fuel tank and an integral depending skirt constructed to contain a fuel filter and to define in part an integral fluid passage communicating a fuel pump through the filter with a fuel line attached at one end to the module and through which fuel is delivered to an operating engine. Fuel discharged from the fuel pump flows through the fuel filter before entering the fuel line for delivery to the engine. An inlet of the fuel pressure regulator communicates with the fuel downstream of the fuel filter to bypass excess fuel delivered from the fuel pump through a bypass outlet of the regulator and into the fuel tank.

Abstract: A filter in a fuel channel is made of a synthetic resin material and is inserted into the fuel channel of one edge portion on the inserting side of a second fuel pipe that is inserted and connected into a first fuel pipe, thereby removing a foreign matter in a fuel. The filter is made up of an annular flange portion having an outer diameter larger than an outer diameter of the second fuel pipe, a cylinder portion having an outer diameter smaller than the outer diameter of the annular flange portion, the cylinder portion having an opening portion provided in an outer peripheral portion so as to be communicated with a channel provided in the cylinder portion, a filter net provided for the opening portion and an annular collar member which is made of a metal material and has an outer diameter larger than an inner diameter of the second fuel pipe.

Abstract: A self-washing device for separating and filtering solid particles from a ow of liquid includes a tubular casing defining an internal chamber, a tangential liquid inlet opening into the internal chamber and arranged to create a vortex in the internal chamber which acts to centrifuge out solid particles and carry them at the vortex periphery, a tangential liquid outlet for discharge of liquid carrying the solid particles from the internal chamber, and a tubular filter disposed longitudinally within the internal chamber for taking and filtering a portion of liquid flow at a center of the vortex, the filter having a longitudinal central duct communicating with at least one longitudinal liquid outlet for the filtered liquid. The device is of particular use in a fuel injection circuit.