Abstract: A hydrogen gas generator in the form of a reformer is used to produce a reformate gas containing hydrogen and at least one other component for use as a fuel or part of a fuel for a compression engine. The hydrogen containing gas blend or mix is used as one component of a fuel for the engine using hydrogen assisted combustion. The hydrogen containing gas produced as the reformate does not require the non hydrogen components to be removed from the gas prior to introduction to the engine either directly or indirectly. This provides a significant saving in cost as pure hydrogen is no longer required for hydrogen assisted combustion.

Abstract: A fuel supply system includes a fuel container, fuel channels provided between the fuel container and a fuel cell or a fuel reformer, flow regulating mechanism for regulating flow rate of a fuel flowing through the fuel channel, and cooling mechanism having a cooling portion which cools the fuel such that a relationship Pfuel (Ta)>Pbubble (Tb) is satisfied before the fuel flows into the flow regulating mechanism, the cooling mechanism allowing the fuel having passed through the cooling portion to flow into the flow regulating mechanism as a single-phase flow of liquid. In the above-described formula, Pfuel (Ta) denotes an internal pressure of the fuel container at a room temperature Ta, and Pbubble (Tb) denotes a saturated vapor pressure of an evaporated component in the fuel at a cooling temperature Tb.

Abstract: A fuel cooling system for a diesel internal combustion engine system having a set of engine cylinders, a fuel storage tank, and a common rail fuel injection system comprises of a fuel distribution circuit for carrying fuel from the fuel storage tank to the engine cylinders; a fuel recycling circuit for recycling un-injected fuel; a temperature sensor for sensing fuel temperature; a fuel to coolant heat exchange system for cooling the fuel wherein the fuel to coolant heat exchange system comprises a coolant reservoir, an electric coolant pump, and a heat exchange manifold; a mechanism for controlling the electric coolant pump operation; an air to coolant heat exchange system coupled to the fuel to coolant heat exchange system for cooling the coolant in the fuel to coolant heat exchange system wherein the air to coolant heat exchange system is exposed to vehicle ram air and includes a heat exchange manifold and a cooling fan; and a mechanism for controlling the cooling fan.

Abstract: A fuel cooler with lamellar inner structures for connecting to an air-conditioning system of a vehicle includes an outer housing having outer connections connected to an outer supply pipe and an outer discharge pipe for a first fluid with the outer connections being integrated into walls of the outer housing in a diagonally mismatched arrangement. An inner conduit cell, surrounded by the outer housing, has an inner supply pipe and an inner discharge pipe for a second fluid passing through the inner conduit cell, which includes lamellas oriented parallel to a direction of flow of the second fluid, with the first fluid coming into contact with an outer contact surface of the inner conduit cell prior to exiting the outer housing for creating a heat exchange between, and without a mixing of, the two fluids, which are fuel and a coolant.

Abstract: An engine assembly may include an internal combustion engine configured to combust a gaseous fuel. The engine assembly may also include a fuel intake line operatively connected to the internal combustion engine. The fuel intake line may be configured to direct the gaseous fuel towards the internal combustion engine. The engine assembly may further include a refrigeration assembly operatively connected to the fuel intake line. The refrigeration assembly may be configured to cool the gaseous fuel in the fuel intake line.

Abstract: A returnless fuel system module includes a fuel pump in a fuel pump cavity, a fuel pressure regulator in a fuel pressure regulator cavity, first and second transfer passages therebetween, and a heat exchanger integrally formed in the housing in thermally conductive relation with at least the bypass relief passage.

Abstract: In an arrangement for handling the fuel in a common rail fuel injection system of an internal combustion engine, wherein fuel is supplied from a tank via a fuel delivery line including a first fuel filter, a low-pressure pump arranged upstream from the first fuel filter and a high pressure pump arranged downstream of the first fuel filter to a high pressure fuel rail from which the fuel is distributed to the cylinder of the engine, a bypass line extends from the high pressure fuel rail to the fuel delivery line and includes a second fuel filter and a heat exchanger which is operatively connected to a cooling circuit of an air conditioning system or to a cooling circuit of the internal combustion engine.

Abstract: A fuel supply apparatus reduces the fuel vaporization and leakage. The positions of vaporization and leakage and their amount in the fuel tank and the fuel pipe are detected when using a low boiling point fuel having a vapor phase in the normal temperatures and atmospheric pressures, and the fuel state is controlled based on those detected values. By providing another container made of elastomatic material having an expandable mechanical characteristic inside the fuel storing container, the low boiling point fuel is stored in the separate container. A flow rate controlling apparatus is provided for heating or cooling the fuel pipe leading the low boiling point fuel stored in the fuel storing container to the engine. A flow rate controlling apparatus is provided for adjusting the flow rate of the fuel in the fuel pipe for leading the low boiling point fuel stored in the fuel storing container to the engine.

Abstract: A return fuel temperature control module is adapted for use in controlling the temperature of fuel diverted away from an engine and returned to a fuel tank. The module includes a housing formed to include passageways and a flow controller to control flow of fuel through the passageways.

Abstract: Cooling fins 72, 74 and 76 extend about the fuel pump 24, perpendicular to the longitudinal axis of the fuel pump and parallel to the anticipated direction of flow of the air stream generated by the movement of the vehicle. The cooling fins are formed on the pump bowl 36, hood 34, and mounting arm 49 to extract the heat of conduction transferred from the engine block 12 to the mounting arm 49 and heat of radiation and convection transferred from the engine block and its accessories to the pump bowl 36, hood 34 and mounting arm 49.

Abstract: A fuel vapor recovery system for a vehicle having a fuel tank coupled to a fuel filler tube. The fuel vapor recovery system includes a carbon canister disposed in the fuel filler tube. Thus, the relatively cool stored fuel passes through the carbon canister disposed in the filler tube before entering the fuel tank. A primary advantage of the present invention is that the problem of the temperature of the carbon rising during vehicle fuelling due to displaced fuel vapors desorbing within the canister is mitigated by heat transfer between the cool fuel passing over the filler tube disposed carbon canister and the entering relatively cool fuel. This heat transfer results in a cooling of the carbon in the canister. Consequently, the carbon in the carbon canister remains effective in desorbing fuel vapors. The filler tube has an inlet for receiving fuel from a supply external to the vehicle. The filler tube is disposed to directing such received fuel to the fuel tank.

Abstract: A temperature control system for maintaining a nitrous oxide pressurized bottle at a preselected temperature and pressure for injecting nitrous oxide into an engine is disclosed. The system includes a generally box shaped insulated container having a hinged cover. The nitrous oxide pressurized oxide bottle having an outer surface is disposed within the container and fixed in the bottom thereof. The system also includes a temperature sensor for sensing the temperature of the nitrous oxide bottle and a thermoelectric air conditioner for heating and cooling the pressurized bottle to maintain a preselected temperature and pressure.

Abstract: The invention relates to a fuel injection system for a diesel engine cooled by a cooling water circuit comprising a storage tank, a distribution system, an injection harness and a draining circuit. The distribution system comprises a pump and a device for the selective heating of the fresh fuel flow before admission into the pump, and the injection harness injects part of the fuel into the engine. The draining circuit comprises a device for cooling the flow of non-injected fuel, and is used for the selective return of the flow toward the storage tank. The selective heating device comprises a recycle line and a direction setting element which can be used selectively to recycle the flow of non-injected fuel upstream of the pump.

Abstract: A fluid cooling system having a heat exchanger (2) with a pressure differential between an inlet area (31) and a cooling area created by use of a venturi between the areas and enhanced flow of cooling medium by use of connecting the output (32) of the exchanger (2) to an exhaust pipe (34).

Abstract: A fuel delivery system for an internal combustion engine, having a fuel feed pump, which delivers fuel which is at pilot pressure to a high-pressure fuel pump that communicates on the high-pressure side with at least one injection valve, in order to deliver fuel at high pressure to the injection valve or valves. To prevent vapor bubble development in the high-pressure fuel pump, which impairs its pumping capacity and pressure generation, a coolant medium flow can be delivered to the high-pressure fuel pump via at least one coolant conduit, in order to keep the temperature (THDP) of the high-pressure fuel pump below a critical operating temperature (Tk1).

Abstract: A watercraft engine fuel cooling system that cools a fuel vapor separator through a detachable heat exchanger. The detachable heat exchanger allows for inexpensive replacement of the detachable heat exchanger if the heat exchanger should become damaged from corrosion. The detachable heat exchanger can transfer the heat from the vapor separator through a water cooling jacket, a thermoelectric element, or through fins to the surrounding air. The transfer of heat from the fuel vapor separator allows the fuel to be kept within a predetermined fuel temperature range.

Abstract: A method and system for freeze protecting liquid NOx reductants, preferably used in vehicle applications, wherein a liquid NOx reductant, carried onboard a vehicle exposed to cold weather conditions, is heated by existing thermal energy generated by fuel compression. The heated fuel heats a potentially frozen reductant and the liquid reductant is supplied to an exhaust gas pipe in front of a catalyst for reducing NOx on the surface of the catalyst and catalytically converted into environmentally safe nitrogen and water.

Abstract: A diesel fuel delivery system contains a variety of components that individually and in combination improve fuel economy and reduce environmental pollution. System improvements include a neck-stabilized check valve body, a fuel heating system, a screen water separator, a stress relieving groove in a fuel pump cavity, a divider wall in the filter head, an inverted cup formed in the filter head with improved positioning of the fuel ports, and a non-spilling filter head for use in retaining fuel while changing the fuel filter.

Abstract: An apparatus is disclosed for cooling fuel by means of the cold side of a thermoelectric unit just prior to entry of the fuel into the fuel delivery components (injectors, carburetors and throttle bodies). An excess of cooling is supplied sufficient to cool the fuel delivery components so as to provide an additional buffer of cooling for the fuel and to prevent substantial re-absorption of heat after the fuel is cooled. The hot side of the thermoelectric unit is cooled by a secondary cooling fluid system separate and distinct from the principal cooling fluid system for the engine block. In one embodiment, excess fuel is shunted by a fuel bypass pressure regulator to a fuel bypass line, and the excess fuel is the cooling fluid which is returned to the fuel tank.

Abstract: An object of the present invention is to provide an accumulator fuel injection system comprising a pressure increasing unit 7 and a pressure increasing common rail 6, in which leaked fuel is recirculated from a high pressure side to a low pressure side, and which is capable of reducing the amount of fuel that must be delivered under pressure by a low pressure pump 3. The focus of the present invention is to return high pressure leaked fuel to between the low pressure pump 3 and a high pressure pump 5.

Abstract: A fuel supply apparatus reduces the fuel vaporization and leakage by means that the positions of vaporization and leakage and their amount in the fuel tank and the fuel pipe is detected properly in case of using a low boiling point fuel having a vapor phase in the normal temperatures and atmospheric pressures, and the fuel state is controlled based on those detected values. By providing another container made of elastomatic material having an expandable mechanical characteristic inside the fuel storing container, the low boiling point fuel is stored in the separate container. A flow rate controlling apparatus is provided for heating or cooling the fuel pipe leading the low boiling point fuel stored in the fuel storing container to the engine. A flow rate controlling apparatus is provided for adjusting the flow rate of the fuel in the fuel pipe for leading the low boiling point fuel stored in the fuel storing container to the engine.

Abstract: An apparatus is disclosed for cooling fuel by means of the cold side of a thermoelectric unit just prior to entry of the fuel into the fuel delivery components (injectors, carburetors and throttle bodies). An excess of cooling is supplied sufficient to cool the fuel delivery components so as to provide an additional buffer of cooling for the fuel and to prevent substantial re-absorption of heat after the fuel is cooled. The hot side of the thermoelectric unit is cooled by a secondary cooling fluid system separate and distinct from the principal cooling fluid system for the engine block. In one embodiment, excess fuel is shunted by a fuel bypass pressure regulator to a fuel bypass line, and the excess fuel is the cooling fluid which is returned to the fuel tank.

Abstract: A fluid cooling system having a heat exchanger (2) with a pressure differential between an inlet area (31) and a cooling area created by use of a venturi between the areas and enhanced flow of cooling medium by use of connecting the output (32) of the exchanger (2) to an exhaust pipe (34).

Abstract: A fuel supply for an internal combustion engine includes an improved construction for inhibiting vapor from appearing in the fuel supplied to the engine's combustion chamber(s). A fuel injector, as one of fuel supply devices, is provided for supplying fuel to the combustion chamber of the engine. There are a first and second fuel reservoirs. The first fuel reservoir stores fuel and delivers it to the second fuel reservoir through a first fuel supply conduit, while the second fuel reservoir temporarily store the fuel and delivers it to the fuel injector through a second fuel supply conduit. The excess fuel is returned to the second fuel reservoir from the fuel injector through a fuel return conduit. The fuel supply includes a fuel cooling device for cooling the fuel passing through at least one of the conduits. The construction of the fuel supply and the fuel cooling device permits them to be located with the tight confines between the engine and a protective enclosure (e.g.

Abstract: A method and apparatus for the operation of a fuel flow system, including a recycling path and a cooler, comprising: sensing the temperature of the fuel; and inserting the cooler in the recycling path when the temperature of the fuel exceeds a threshold temperature. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR. 1.72(b).

Abstract: A fuel line cooling device and method of use including a bag with a pair of pockets separated by a fold line, a frozen material contained within the pockets, a waterproof material separating the frozen material from the bag and wherein the bag includes straps for securing it to itself while wrapped around a fuel line. The method of cooling a fuel line of a vehicle having the following steps (a) placing frozen material enclosed within a waterproof receptacle into a bag; (b) sealing the bag closed; (c) wrapping the bag containing the frozen material around the fuel line and securing it to itself; (d) permitting the bag to remain in contact with the fuel line for a length of time; and (e) removing the bag from the fuel line.

Abstract: A method for cooling a fuel injection system and fuel injection systems are proposed that improve the hot-starting performance of the internal combustion engine.

Abstract: A fuel pump assembly for use with a fuel injected combustion engine has a liquid cooled vapor separator from which conditioned fuel is drawn by a high pressure fuel pump. The vapor separator has an internal heat conductive sleeve which defines a fuel chamber or reservoir. A coolant chamber surrounds the heat conducting sleeve and is carried laterally between an exterior housing of the fuel pump assembly and the internal sleeve. A coiled baffle disposed within the coolant chamber forms a coolant channel which spirals about the sleeve. The channel has a first end which communicates with a coolant passage inlet and an opposing second end which communicates with a coolant passage outlet carried by the housing. The introduction of the baffle, therefore the channeling of coolant flow through the spiraling channel, improves the fuel cooling efficiency of the vapor separator by eliminating hot spots created by stagnate or non-flowing coolant areas within the coolant chamber.

Abstract: A fuel vapor treatment or recovery system for an automotive internal combustion engine. The system comprises a canister containing a fuel vapor adsorbing material. A membrane separation module is provided to be connected to the canister and including a separation membrane for separating a mixture gas into an air-rich component and a fuel vapor-rich component. The separation membrane has an air-selective permeability so that the air-rich component is be able to pass through the separation membrane, the mixture gas containing air and fuel vapor. Additionally, a gas transporting device is provided to be connected to the canister, for causing purge gas to be introduced into the canister to purge fuel vapor from the fuel vapor adsorbing material and causing fuel vapor purged from the canister to be fed to the membrane separation module.

Abstract: A method and apparatus for the operation of a fuel flow system, including a recycling path and a cooler, comprising: sensing the temperature of the fuel; and inserting the cooler in the recycling path when the temperature of the fuel exceeds a threshold temperature. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: An engine includes an air induction system, a fuel supply system, a lubrication system and a ventilation system. The fuel supply system has a fuel reservoir in which a space for fuel vapors is defined. The lubrication system lubricates a component of the engine with lubricant. The ventilation system couples a crankcase of the engine with the air induction system so as to deliver oil vapors in the crankcase to the air induction system. A fuel vapor passage is arranged to couple the space of the fuel reservoir with the ventilation system.

Abstract: The invention relates to a fuel delivery system for an internal combustion engine, having a fuel feed pump (10), which delivers fuel which is at pilot pressure to a high-pressure fuel pump (11) that communicates on the high-pressure side with at least one injection valve (14), in order to deliver fuel at high pressure to the injection valve or valves (14). To prevent vapor bubble development in the high-pressure fuel pump (11), which impairs its pumping capacity and pressure generation, it is provided according to the invention that a coolant medium flow can be delivered to the high-pressure fuel pump (11) via at least one coolant conduit (21, 31), in order to keep the temperature (THDP) of the high-pressure fuel pump (11) below a critical operating temperature (Tk1).

Abstract: A fuel supply for an internal combustion engine includes an improved construction for inhibiting vapor from appearing in the fuel supplied to the engine's combustion chamber(s). A fuel injector, as one of fuel supply devices, is provided for supplying fuel to the combustion chamber of the engine. There are a first and second fuel reservoirs. The first fuel reservoir stores fuel and delivers it to the second fuel reservoir through a first fuel supply conduit, while the second fuel reservoir temporarily store the fuel and delivers it to the fuel injector through a second fuel supply conduit. The excess fuel is returned to the second fuel reservoir from the fuel injector through a fuel return conduit. The fuel supply includes a fuel cooling device for cooling the fuel passing through at least one of the conduits. The construction of the fuel supply and the fuel cooling device permits them to be located with the tight confines between the engine and a protective enclosure (e.g., a cowling of an outboard motor).

Abstract: A fuel system for a marine engine has a recirculation cooler which receives a portion of fuel discharged from a fuel pump, cools that fuel, and then returns the cooled fuel to the inlet of the fuel pump to reduce fuel vapor formation and to cool the pump as the cooled fuel flows through the pump. The recirculation cooler is preferably formed of a material of high thermal conductivity and has a water passage adjacent to the fuel passage to reduce the temperature of the fuel that flows through the recirculation cooler. The recirculation cooler is preferably used in high heat applications or with a speed controlled fuel pump, with a pulse width modulated drive, for example. In these applications, during at least some fuel flow conditions, the flow of fuel through the fuel pump may be insufficient to cool the fuel pump motor and may cause increased fuel vapor formation.

Abstract: A device for compressing a gaseous medium such as those used in energy generating systems or gas separation systems, including a compressor unit provided with a medium inlet, an outlet for the compressed medium and with means for the atomising of a liquid evaporation agent in the medium, wherein the atomising means include at least one flash swirl atomisation unit, arranged and mounted such that the atomised evaporation agent fragmentises by means of the formation of gas in the atomised evaporation agent.

Abstract: A cyclonic ice separator (72) is provided for removing ice from low temperature aviation fuels. The temperature of the fuel is lowered beneath the freezing point of water, such that significant amounts of dissolved water leaves solution and becomes free water, and the free water freezes and becomes filterable. The fuel is then passed through the cyclonic separator (72), which spins the fuel in an intense cyclonic spiral path 121 to create centrifugal forces which separate the ice from the fuel. Heating elements (110, 128) are provided within the cyclonic separator (72) to prevent blockage of ice and water discharge ports (118, 78). A mixture of fuel, ice and water is passed from the cyclonic separator (72) and into a reclamation unit (80), in which gravity separates a reclaimed portion of the fuel from the ice and water. The fuel is then passed through conventional aircraft filtration equipment (130).

Abstract: A fuel management and delivery system for a vehicle having a fuel tank supplying an engine includes a heat exchanger positioned within a sender unit positioned within the fuel tank and at least one insulated fuel line extending between the fuel tank and the engine. A controller may be connected with respect to the heat exchanger for regulating a temperature of the heat exchanger and fuel within the insulated fuel line.

Abstract: A fuel supply for an internal combustion engine includes an improved construction for inhibiting vapor from appearing in the fuel supplied to the engine's combustion chamber(s). A fuel injector, as one of fuel supply devices, is provided for supplying fuel to the combustion chamber of the engine. There are a first and second fuel reservoirs. The first fuel reservoir stores fuel and delivers it to the second fuel reservoir through a first fuel supply conduit, while the second fuel reservoir temporarily store the fuel and delivers it to the fuel injector through a second fuel supply conduit. The excess fuel is returned to the second fuel reservoir from the fuel injector through a fuel return conduit. The fuel supply includes a fuel cooling device for cooling the fuel passing through at least one of the conduits. The construction of the fuel supply and the fuel cooling device permits them to be located with the tight confines between the engine and a protective enclosure (e.g.

Abstract: A fuel injection system is provided for use in an internal combustion engine, where the engine includes at least one cylinder head cover. The fuel injection system includes at least one fuel injector assembly that is inserted into an inlet in the cylinder head cover. The fuel injector assembly includes an upper body portion and a lower body portion that extends through the inlet of the cylinder head cover, where at least part of the lower body portion is comprised of a low radiant heat absorbent material having a high radiant heat reflectance color for reflecting radiant heat away from the fuel injector assembly during engine operating conditions.

Abstract: An engine includes an air induction system, a fuel supply system, a lubrication system and a ventilation system. The fuel supply system has a fuel reservoir in which a space for fuel vapors is defined. The lubrication system lubricates a component of the engine with lubricant. The ventilation system couples a crankcase of the engine with the air induction system so as to deliver oil vapors in the crankcase to the air induction system. A fuel vapor passage is arranged to couple the space of the fuel reservoir with the ventilation system.

Abstract: The invention provides a fuel distribution pipe which can restrict an increase of temperature of a fuel flowing within a fuel distribution path of the fuel distribution pipe, whereby it is possible to improve an operation property of the engine. In the fuel distribution pipe, the fuel distribution path is pierced along a line X—X in a direction of a longitudinal axis of the fuel distribution pipe and an injection valve supporting hole for inserting and supporting a rear end portion of the fuel injection valve and a fuel introduction path for supplying a fuel having a pressure increased by a fuel pump are continuously provided in the fuel distribution path of the fuel distribution pipe, and a cooling water flow path extending along the line X—X in the direction of the longitudinal axis of the fuel distribution path and sectioned from the fuel distribution path is provided on an outer periphery of the fuel distribution path, thereby introducing a cooling water into the cooling water flow path.

Abstract: The present invention improves operation of a compression ignition engine using a fuel emulsion. Fuel emulsions tend to separate at high temperatures and pressures as a surfactant in the emulsion looses its effectiveness. The present invention employs a fuel cooling device to reduce the fuel emulsion temperature before returning the fuel emulsion to a fuel tank.

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: Inert loading jet fuel (302) is a provided by directly injecting an inerting agent (316) directly into jet fuel (308) while it is being loaded onboard an aircraft (13) to ultimately make aircraft fuel tanks (17) safe from ignition and explosions. The inerting agent (316) is preferably gaseous nitrogen (N2) which is directly injected into the fuel flow (346) during refueling of the aircraft (13), and travels to the fuel tanks (17) and then separates from the fuel (302) within the fuel tank (17) to substantially fill the ullage of the fuel tank (17) with a non-explosive atmosphere. The inerting agent (316) may also be injected in to aircraft fuels (8) which are cooled to reduced temperatures such that the volume of the fuel (8) is reduced, thereby allowing more fuel (8) to be held in the storage (17). The inerting agent may further be injected into aircraft fuels which are heated and then stored in fuel storage (17) of the aircraft (13) to de-ice the wings (15) of the aircraft (13).

Abstract: A liquid cooled fuel rail assembly includes an elongate tubular fuel conduit having a longitudinal central axis and a first diameter. The fuel conduit is configured for carrying fuel and defines at least one port, each port being configured to receive an intake end of a corresponding fuel injector. A first end plug is associated with a first end of the fuel conduit and defines a first bore and a second bore therethrough. The first end plug seals the first end of the fuel conduit. A second end plug is associated with a second end of the fuel conduit and defines a first bore and a second bore therethrough. The second end plug seals the second end of the fuel conduit. A fuel inlet is in fluid communication with the second bore of the first end plug. A fuel outlet is in fluid communication with the second bore of the second end plug. An elongate tubular coolant conduit has a second outside diameter that is less than the first outside diameter of the fuel conduit.

Abstract: A fuel feeder comprises a filter case installed in a fuel tank through a fuel-tank access hole by means of a mounting bracket. An in-tank fuel pump and a filter element are both disposed in the filter case, while a fuel-pressure regulator having a fuel return port is mounted on the upper side of the filter case. Also provided is a fuel return pipe connected at its upstream end to the fuel return port of the pressure regulator, and having a conduit portion extending downwards from the upstream end along the outer periphery of the filter case. The fuel return pipe has a return-fuel outlet formed at a side of the conduit portion facing the outer periphery of the filter case, whereby superfluous fuel returned from the pressure regulator flows into the tank at a position spaced apart from the bottom of the tank with impingement of the superfluous fuel flow against the outer periphery of the filter case to reduce noises and to effectively release static electricity from the electrified filter case.

Abstract: A device for supplying an internal combustion engine (1) of a motor vehicle with fuel has a return line (4) which is passed into a fuel tank (2) and has a wall made of a material of high thermal conductivity. The return line (4) is arranged within a ventilation duct (5). Cooling air is conveyed through the ventilation duct (5) to the return line (4). This is a simple means of limiting the maximum temperature of the fuel in the fuel tank (2).

Abstract: A fuel rail for the distribution of fuel is disclosed. The fuel rail includes an extending primary conduit having a first open end for receiving fuel and a second open end for returning fuel. The primary conduit has a plurality of ports for injector cups disposed in spaced intervals between the two ends. The fuel rail further includes a secondary conduit extending over a portion of the primary conduit. The secondary conduit is closed at its ends to form a cavity between the portion of primary conduit and the secondary conduit. Fluid communicates between the primary conduit and the cavity through small apertures disposed in the portion of the primary conduit. A vapor fuel return conduit is selectively opened to the cavity when the fuel reaches a predetermined temperature. When the fuel return conduit is opened to the cavity, the increase in volume of the fuel rail causes some of the liquid fuel in the primary conduit to change to vapor as it goes through the small apertures.

Abstract: In a fuel supply system for diesel engines, which comprises a fluidic series connection of a fuel pump (5) sucking out of a tank (1), of a fuel filter (7) and of a high-pressure pump (9), a parallel connection, located downstream of the high-pressure outlet (14) of the high-pressure pump (9), of a plurality of injectors (16) or injection nozzles and of an electrically controllable high-pressure regulating valve (17) with a return line (20), said parallel connection being capable of being fed by the high-pressure pump with a fuel stream under a pressure which is variable, as required, by the activation of the high-pressure regulating valve, at least one return line (18) for recirculating a fuel excess from the high-pressure regulating valve and/or the injectors into the tank (1), and at least one cooler (19, 21) arranged in a return line, according to the invention a first return line (18) is located downstream of the injectors (16) and a second return line (20) downstream of the high-pressure regulating v

Abstract: A fuel tank fabrication, a fuel system and a method for refueling a vehicle each employ a fuel tank having contained at least in part therein a liquid fuel and a fuel vapor. The at least one of the liquid fuel and the fuel vapor is then cooled while employing a Stirling cooing apparatus such that upon refueling the fuel tank there is attenuated an escape of the fuel vapor from the fuel tank.