Abstract: To provide an engine head structure for “omission or shortening a fuel pipe that withstands a high pressure”, “simplification or omission of a support bracket for a fuel accumulator and/or a fuel injection device”, “reduction of the number of parts” by devising a fuel accumulator and a support structure therefor, and the like. An engine head structure has a support bracket for mounting a fuel accumulator including a joining portion with a fuel injection device on a cylinder head, is disposed on a side of the fuel injection device or between adjacent fuel injection devices. The support bracket includes a member having a mounting portion on which the fuel accumulator is placed and mounted, a mounting leg portion extending from the mounting portion and mounted on the cylinder head, and an aligning leg portion extending from the mounting portion for positioning the support bracket with respect to the cylinder head.

Abstract: Methods and systems are provided for a fuel line attachment. In one example, a system comprises a fuel line attachment assembly comprising a fixed portion and a movable portion, wherein the movable portion is shaped to slide along a recess of the fixed portion in response to a vehicle collision.

Abstract: A system, which is used especially as a fuel injection system for the high-pressure injection in internal combustion engines, includes a fuel distributor and a plurality of fuel injectors. Each fuel injector is situated on a cup of the fuel distributor. At least one of the fuel injectors is fastened to the associated cup by a holding element. The holding element has an at least essentially straight first leg and an at least essentially straight second leg. The cup includes at least one recess, which extends through a wall of the cup. The first leg and the second leg are guided through the at least one recess. Furthermore, the connection sleeve of the fuel injector has a collar, which is braced on the first leg of the holding element and on the second leg of the holding element in order to secure the fuel injector on the cup.

Abstract: A fuel injector may include a fuel injector body having a central longitudinal axis, a plate element for coupling the fuel injector to a fuel injector cup, a snap ring and a spring element is specified. The snap ring is operable to block a movement of the fuel injector body relative to the plate element in a first direction of the central longitudinal axis. The spring element is operable to bias the plate element in a second direction of the central longitudinal axis opposing the first direction of the central longitudinal axis to prevent a movement of the plate element relative to the fuel injector body during coupling to the fuel injector cup.

Abstract: Provided is a protective structure (64) for a fuel pipe (45) extending along the intake side of an engine main body (9) under an intake manifold (20). A protective member (61) is placed in front of the fuel pipe. The protective member includes a pair of legs (64, 65) secured to the intake side of the engine main body, a main body (63) extending from the legs upward in an arcuate manner along a front side of the fuel pipe and bent rearward in an upper part thereof, and an abutting projection (63G) extending from an upper end of the main body and projecting upward and rearward. A fastening member (26, 27) is passed through a flange of the intake manifold, and includes an engagement feature (36) positioned behind a free end of the abutting projection. The protective member minimizes the loading transmitted to the fuel pipe at the time of a vehicle crash.

Abstract: A fuel distributor rail for a fuel injection system for an internal combustion engine in motor vehicles, in particular for gasoline engines. The fuel distributor rail comprises a main tube, wherein the main tube has a fuel channel extending in the longitudinal direction of the main tube. The main tube comprises at least two outlet openings, wherein the outlet openings branch off the fuel channel. A connecting element is arranged on the main tube, wherein the connecting element has an attachment wall that rests against the main tube. The connecting element is connected to the main tube in a material bonded manner and comprises at least two connecting pieces. The connecting pieces have a connecting channel each for the fluidic connection of an outlet opening to each injection nozzle.

Abstract: A fuel rail assembly for an internal combustion engine is disclosed. It comprises a plurality of fuel delivery lines branching off from a fuel rail, each fuel delivery line hydraulically coupling one fuel injector to an outlet port of the fuel rail. Each fuel delivery line has a one-piece pipe which extends from an outlet port of the fuel rail to the respective fuel injector. The pipe has a cylindrical connection section adjoining the respective outlet port and a cylindrical injector cup section in which a fuel inlet portion of the respective fuel injector is received. The connection section and the injector cup section have different hydraulic diameters.

Abstract: A resilient seal member disposed in an alignment groove of an accumulator body centers the accumulator body in an oversized accumulator bore of a cylinder head to prevent assembly damage. The seal member can compress to allow the accumulator body to move off center within the accumulator bore so that an end may be received by and form a seal with a port of a fuel injector. The alignment groove and the seal member are configured so that cooling fluid can flow past the seal member when the accumulator body is installed. In one implementation, the accumulator body includes at least one fluid flow channel at the alignment groove having a depth greater than the alignment groove so fluid can flow through the channel to pass the seal member.

Abstract: Disclosed herein is the structure of a GDI fuel delivery pipe. The structure of a GDI fuel delivery pipe includes: a main pipe configured to flow fuel through a hollow formed therein; a plurality of injector cups formed in cylindrical shapes having open lower ends, and configured to be coupled and fastened to the main pipe, to flow fuel therethrough, and to be coupled to respective injectors; a plurality of mount holders configured to form tubular parts each having a bolt hole in a lengthwise direction, and to be coupled and fastened to the main pipe; and fastening members configured to fasten the plurality of injector cups or mount holders to the main pipe by being coupled to the outer circumferential surface of the main pipe at both left and right ends thereof while surrounding the outer circumferences of the plurality of injector cups or mount holders.

Abstract: A fuel tank assembly includes a securement structure that may be secured to a fuel tank. The securement structure may stabilize the lower regions of a draw tube and a return tube positioned within the fuel tank such that movement and vibration of the draw and return tubes is reduced during motion of the vehicle to which the fuel tank is secured.

Abstract: Vehicle engine systems and protectors for such systems are presented. The protector can include a first end that is operatively connected to an intake manifold of the engine system. The protector can include a second end positioned between a fuel component of the engine system and a vehicle firewall. The protector can include one or more hooks that extend from an outer surface of the protector near the second end. The hooks are configured to engage the vehicle firewall during an impact collision. In one or more arrangements, the hooks can be configured to pierce through the vehicle firewall during the impact collision.

Abstract: A system, which may be embodied particularly as a fuel injection system for high pressure injection in internal combustion engines, includes a fuel distributor and a mounting support, which is used for fastening the fuel distributor to an externally-mounted structure, particularly a cylinder head, of an internal combustion engine. In this case, a damping composite element is provided, which is connected to the mounting support and/or the fuel distributor. The damping composite element includes at least one metal layer, which is formed at least essentially of a metallic material, and at least one elastically deformable damping layer.

Abstract: A mounting is provided for fuel injection systems, the mounting connecting a fuel injection valve to a fuel-conducting component, and having a connecting body and a connecting piece that are connected to one another. Inside the connecting body and the connecting piece there is configured a receptacle space in which a fuel connector of the fuel injection valve is at least partly situated. An inner collar is configured on the connecting piece. In addition, an elastically deformable element is provided. The elastically deformable element is supported at least indirectly on the inner collar of the connecting piece. In addition, the fuel connector is supported at least indirectly on the elastically deformable element. In addition, a fuel injection system having such a mounting is described.

Abstract: A device is described for metering fuel in internal combustion engines is provided, which includes a fuel distributor provided with a flow channel and at least one discharge orifice connected thereto, a valve which is connected to the fuel distributor for metering the fuel and has a pipe connection that is able to be attached to the discharge orifice, and connection means, which connects the fuel distributor and the valve to each other in the attachment region of the pipe connection and the discharge orifice in a pressure-tight manner.

Abstract: A fuel quill passageway assembly for an engine is disclosed. The engine includes a head pot; a cylinder head having an outer wall situated adjacent to the head pot, an inner wall, and a water jacket situated between the outer wall and the inner wall; and a fuel injector situated adjacent to the inner wall. The assembly may include a first sleeve extending through an aperture in the head pot toward an aperture in the outer wall of the cylinder head. The assembly may also include a second sleeve extending from the aperture in the outer wall of the cylinder head, through the water jacket, to an aperture in the inner wall of the cylinder head. Additionally, the assembly may include a seal joining the second sleeve to the first sleeve.

Abstract: A sealing system comprising a cylinder head, a coupler, a fuel injection line, and a cap. The coupler is positioned in the cylinder head, and the fuel injection line extends into the coupler so as to at least partially define a fuel leak passageway therebetween. The fuel injection line extends through the cap, and the cap yieldably urges itself into a seated position in which the cap establishes a first sealed connection with the fuel injection line and establishes a second sealed connection with the coupler, so as to block ingress of moisture into the fuel leak passageway. Additionally, the cap allows movement of itself away from the seated position to an unseated position in response to a pressurized leaked fuel, in the fuel leak passageway, so as to allow the pressurized leaked fuel to flow out of the fuel leak passageway.

Abstract: A coaxial quill assembly is used for supplying gaseous and liquid fuels from separate common rails to individual fuel injectors of a compression ignition engine. Each coaxial quill assembly includes a matched pair of an outer quill and an inner quill that are matched based upon a fuel system dimensional specification that causes both the inner and outer quills to sealingly engage a common conical seat of a fuel injector. During pre-installation handling, the matched pair of inner and outer quills are retained together with a retainer.

Abstract: A fastening assembly for mounting a fuel rail in an engine includes a bracket which includes a longitudinal axis and is coupled to the fuel rail, a retainer which includes a first through opening for receiving a bolt, and a bolt which is inserted through the first through opening. The bracket includes a second through opening for receiving the retainer and the bolt. The retainer is arranged in the second through opening such that it can rotate relative to the bracket. The cross-section of the first through opening perpendicular to the longitudinal axis has an elongated shape.

Abstract: The present invention relates to a mounting structure for a direct injection fuel rail. Specifically, a mounting structure 120 for a direct injection fuel rail comprises a mount unit 124 and an injector cup 122 combined with a main pipe 110, wherein the injector cup 122 and the mount unit 124 are connected to and integrated with each other via a bridge 126, wherein the injector cup 122 is bonded to the main pipe 110, and wherein the mount unit 124 is separated from the main pipe 110. As such, concentration of stress due to displacement may be prevented, resistance against fatigue fracture may be increased, thermal deformation and additional concentration of stress may be prevented, manufacturability may be improved, and precise assembling positions may be easily ensured.

Abstract: A fuel injector assembly has a fuel injector and a coupling device for hydraulically and mechanically coupling a fuel injector to a fuel rail of a combustion engine. The coupling device includes a fuel injector cup configured to be hydraulically coupled to the fuel rail and to engage a fuel inlet portion of the fuel injector, a plate element fixedly coupled to the fuel injector cup and comprising a groove, and a snap ring arranged in the groove and configured to fixedly couple the plate element to the fuel injector to retain the fuel injector in the fuel injector cup in direction of a central longitudinal axis of the fuel injector and to prevent a movement of the fuel injector relative to the plate element in a first direction of the central longitudinal axis. A circlip arranged axially between the fuel injector and the plate element prevents a movement of the fuel injector relative to the plate element in a second, opposite direction of the central longitudinal axis.

Abstract: A coupling device for hydraulically and mechanically coupling an injection valve to a fuel rail of a combustion engine has a fuel injector cup with a central longitudinal axis, is hydraulically coupled to the fuel rail and in engagement with the injection valve. A first retaining element is fixedly coupled to the fuel injector cup, a second retaining element is fixedly coupled to the injection valve, the second retaining element being coupled to the first retaining element to prevent a movement of the second retaining element relative to the first retaining element in a first direction of the central longitudinal axis to retain the injection valve in the fuel injector cup, and an interface element which is operable to axially couple the injection valve with the second retaining element in a fixed way. Fuel injection arrangement with a coupling device and an injection valve which is coupled to the coupling device.

Abstract: System for supplying fuel from a tank (2) to a manifold (5) that distributes fuel into an engine (3); the system (1) having a pumping unit which connects together the tank (2) and the manifold (5) and has a fluid line (11) with a first or low-pressure portion (P1), a second or high-pressure portion (P2), a high-pressure pump (9) connecting together the first and second portions (P1, P2); the first portion (P1) having a plurality of low-pressure branches (23-28, 30-34), a plurality of fluid components (8, 13, 21, 29, 231, 232, 233, 241, 242, 251, 261, 271, 311), each of which has at least one connector (36) and at least one tubular coupling (40; 140; 340; 440), which latter is inserted partly into the connector (36) and partly into a low-pressure branch (23-28; 30-34); each coupling (40; 140; 340; 440) having a plastic tubular body (145; 345; 445).

Abstract: The present disclosure provides an enclosure or containment assembly adapted to seal a high pressure fuel rail, and an engine system including such an enclosure or containment assembly. The assembly includes two portions that can sealingly engage to form an enclosure or compartment that contains the high pressure fuel rail. Fuel line connectors leading into the enclosure to ports of the high pressure fuel rail are in a sealing engagement with the enclosure to seal the high pressure fuel rail from the atmosphere and provide an enclosed low pressure region between the high pressure fuel rail and an inner surface of the enclosure. In this way, leaked fuel can be collected from the high pressure fuel lines and contained. The collected and contained leaked fuel can be channeled to a leak detector, which can trigger an alarm with detection of a leak.

Abstract: A duel fuel quill assembly and method for assembling such an assembly for an engine are disclosed. The dual fuel quill assembly may comprise a cylinder head including a main bore and a receiving cavity, an outer quill tube, an inner quill tube nested within the outer quill tube, an adapter slidingly received inside the main bore of the cylinder head, and a manifold secured to the adapter. The adapter may be moveable between a first position and a second position and may define an axial bore configured to receive the outer quill tube and the nested inner quill tube. The manifold may define a recess configured to compress the outer and inner quill tubes against the cylinder head cavity when the adapter is in the second position.

Abstract: A vibration isolation fuel rail mounting arrangement is configured for in-plane shear type damping by spacing the mid-width points of the elastomer compression areas of two stacked-layer isolators away from the central fastener axis by a distance between about 1.5 times the bolt diameter and about 3.0 times the bolt diameter.

Abstract: This disclosure provides a fuel line assembly for use with an internal combustion engine, an internal combustion engine including such as fuel line assembly, and a method for providing leak containment and detection in a fuel system, each of which include a double-walled fuel line including a high pressure fuel line component. The double-walled fuel line includes a high pressure fuel line, a jacket surrounding the high pressure fuel line, and a low pressure passage between the high pressure fuel line and the jacket. A fuel line nut includes a main body that houses a portion of the high pressure fuel line, and a first end portion supporting an enlarged end portion of the high pressure fuel line protruding from the first end portion. A second end portion of the fuel line nut sealingly connects to the jacket to extend the low pressure passage into an area between the main body and the housed high pressure fuel line.

Abstract: A low mass draw and return tube assembly, for use in fuel tanks, is disclosed.

Abstract: A motor vehicle assembly unit having a connector, in particular a quick connector, and having a motor vehicle fluid line, wherein the connector includes an insertion end for inserting the fluid line, wherein there is a securing spike on the insertion end, which is encompassed by an outer sleeve. An annular insertion space for the fluid line or a fluid line end of the fluid line is disposed between the securing spike and the outer sleeve. The outer sleeve is connected to the securing spike by means of at least one break-away element, that breaks when the fluid line is inserted in the annular insertion space, such that the outer sleeve can be slid onto the securing spike, or further slid onto the securing spike from, or with, the fluid line.

Abstract: A fuel-piping attachment structure includes a fuel piping, at least one fastening portion, and a protective member. The at least one fastening portion is to be joined to an internal combustion engine main body to support the fuel piping with respect to the internal combustion engine main body. The protective member includes at least one base portion to be joined to the internal combustion engine main body. All of the at least one fastening portion are disposed on a first side in a Z direction with respect to the axis of the fuel piping. All of the at least one base portion are disposed on a second side in the Z direction with respect to the axis of the fuel piping.

Abstract: A connector for coupling a high pressure fuel line with a fuel rail, the connector including a connector body disposed along a longitudinal axis, and having a first end portion, and a second end portion opposite the first end portion. The connector body is configured to couple with a high pressure fuel line at the first end portion, and is configured to couple with a fuel rail at the second end portion. The connector body defines a fluid passage along the longitudinal axis between the first end portion and the second end portion. The fluid passage includes an orifice portion having a length along the longitudinal axis and a diameter, and the length of the orifice portion is more than 3 times greater than the diameter of the orifice portion.

Abstract: A fuel pipe assembly for supplying fuel to a fuel injector located within a bore of an engine cylinder head comprises a tube nut for connecting the fuel pipe to the fuel injector and a securing arrangement comprising a locking nut and a deformable clamp member for securing the fuel pipe within the tube nut. The tube nut comprises a tubular member defining an axial bore to receive the fuel pipe, a distal end shaped for cooperation with the head of the fuel pipe, and a proximal end having an attachment mechanism for engaging a compatible attachment mechanism of the locking nut. The locking nut has an axial bore to receive the fuel pipe, and an attachment mechanism for engaging a compatible attachment mechanism of the tube nut. The clamp member defines a bore to receive the fuel pipe and is deformable under compression.

Abstract: A flange device for an air induction device of an internal combustion engine may include a housing of plastic having at least one inlet channel for each cylinder of the internal combustion engine. A fuel distribution rail of metal may have a connection for each cylinder for connecting a fuel injector, wherein the housing may have a flange that surrounds the outlet openings of the inlet channels and be configured to fasten the housing on the internal combustion engine. The housing may have a plurality of bridge sections that overlap the fuel distribution rail on a side facing away from the flange. Each bridge section may have a support sleeve arranged distally to the inlet channels and be configured to fasten the respective bridge section on the internal combustion engine.

Abstract: A fuel system for an engine is disclosed. The fuel system may have a pump, a plurality of fuel injectors, and a plurality of fuel accumulators. Each of the plurality of fuel accumulators may be disposed at least partially within a different cylinder head of the engine in fluid communication with an associated fuel injector of the plurality of fuel injectors. Each of the plurality of fuel accumulators may also be in fluid communication with adjacent fuel accumulators of the plurality of fuel accumulators. At least one of the plurality of fuel accumulators may also be in fluid communication with the pump. The fuel system may further have a plurality of flow limiters. Each of the plurality of flow limiters may be disposed between an associated fuel accumulator of the plurality of fuel accumulators and an associated fuel injector of the plurality of fuel injectors.

Abstract: A fuel rail for high-pressure direct-injection internal combustion engines has an injector holder and a fastening bracket directly attached to a main body of the fuel rail. Thermal deformation may occur at the time of temporary fitting or brazing when assembling the rail. However, positional accuracy of the injector holder can be assured, which results in having an excellent sealing property. Components of the fuel rail for direct-injection internal combustion engines are made of steel or stainless steel, and the components are joined reciprocally by brazing. The components joined by brazing are finished by cutting work and/or burnishing processing after the brazing step.

Abstract: A fuel distribution pipe includes a pipe having a tubular main bore through which fuel is to be passed, a cylindrical injector attachment portion having a cylindrical injector bore to which an injector is to be attached, and a cylindrical bolt attachment portion having a cylindrical bolt bore through which a bolt is to be passed to fix the pipe to the cylinder head with the bolt. The injector bore communicates with the main bore such that an axis of the injector bore intersects with an axis of the main bore. An axis of the bolt bore intersects with the axis of the main bore.

Abstract: A high pressure fuel pipe construction for an internal combustion engine, such as a direct injection engine. A conduit for the fuel is open at each end and a ball having a throughbore is slidably positioned over one end of the conduit. A reinforcing sleeve is positioned inside the end of the conduit so that the sleeve extends entirely through the ball. The sleeve, ball and the end of the conduit are then brazed together to attach the ball and conduit together. A double chamfer is provided at one end of the ball throughbore to facilitate inspection of the brazing quality. Additionally, a loop is formed in the conduit and a dampener is attached to the loop.

Abstract: A dual fuel common rail system includes first and second common rails fluidly connected to a fuel injector by a co-axial quill assembly. Distillate diesel fuel at a first pressure moves from the first common rail through a first fuel passage defined by a quill, through an inner tube and into the fuel injector. Liquid natural gas a second lower pressure moves from the second common rail through a second fuel passage defined by the quill, through a space between the outer tube and the inner tube, and finally into the fuel injector. The quill is partially positioned in a block. First and second compression load adjusters are threadably attached to the block to adjust a compression load on the inner tube and outer tube to inhibit leakage of fuel from the tubes.

Abstract: An internal combustion engine with a fuel injection system is provided. The injection system includes a source of pressurized fuel positioned outside an oil-wetted space of an engine and a fuel injector positioned within the space. An engine component that is a part of an engine system other than the fuel injection system is attached to the engine outside the oil-wetted space by a fastener. The fastener is provided with an internal passage forming part of a hydraulic communication between the source of pressurized fuel and the injector.

Abstract: A fuel supply system of a vee engine includes a high-pressure fuel pump. A first delivery pipe is to distribute fuel to injectors disposed on a first bank. A second delivery pipe is to distribute the fuel to injectors disposed on a second bank. The fuel is to be supplied from the high-pressure fuel pump to the first delivery pipe through a first joint pipe. The fuel is to be supplied from the high-pressure fuel pump to the second delivery pipe through a second joint pipe. A direction of a connecting part of the first joint pipe on a side of the high-pressure fuel pump substantially matches a direction of thermal expansion of the first bank. A direction of a connecting part of the second joint pipe on a side of the high-pressure fuel pump substantially matches a direction of thermal expansion of the second bank.

Abstract: The present invention provides a common rail formed by bonding a common rail body and a common rail holder which has a pressing surface and a convex bonding surface, by means of a heat pressure bonding process and a liquid phase diffusion bonding process, wherein the height H of the convex bonding surface satisfies 1 ?m?H?50 ?m, and the common rail holder includes a deformation introducing portion in which an area of a cross-section parallel to the pressing surface is smaller than the area of the pressing surface.

Abstract: A system of alternate hose line bundling allows for exclusion of a higher pressure hose line from fasteners directly attached to a vehicle body. Alternatively to mounting to the vehicle body, the higher pressure hose line is coupled to a lower pressure hose line via fasteners which lack mounting features. Eliminating attachment of higher pressure hose lines to the vehicle body reduces noise, vibration, and harshness (NVH) experienced by passengers in the vehicle.

Abstract: The motorcycle includes a power unit having an output shaft in a crankcase of an internal combustion engine, a fuel injection system mounted to the power unit, the fuel tank, the fuel pump unit by which a fuel in the fuel tank is supplied to the fuel injection system through a fuel passage, the fuel filter device connected to the fuel passage on the downstream side relative to the fuel pump unit, and a shock absorber provided in a vertically oriented state on the front side of a rear wheel. The fuel supply system for the motorcycle includes the fuel pump unit being disposed outside the fuel tank, on the rear side of the output shaft and on the front side of the rear cushion, and the fuel filter device is disposed on the upper side of the crankcase.

Abstract: A vibration isolation fuel rail mounting arrangement is configured for in-plane shear type damping by spacing the mid-width points of the elastomer compression areas of two stacked-layer isolators away from the central fastener axis by a distance between about 1.5 times the bolt diameter and about 3.0 times the bolt diameter.

Abstract: A fuel injector cup assembly (26) includes a fuel injector cup (10) having an opening (18) to receive fuel from a fuel rail (15). An open end (27) receives an inlet of a fuel injector (10) therein such that an O-ring (16) seals with the injector cup. A mounting portion (20) extends from a body (29) of the cup and mounts the cup with respect to a cylinder head. Rotation limiting structure (26) is associated with the mounting portion such that when the cup is coupled to the cylinder head and when a first moment is created about the mounting portion causing rotation of the cup with respect to the fuel injector, the rotation limiting structure will engage at least the mounting portion of the cup and create a second moment equal and opposite to the first moment, to prevent further rotation of the cup.

Abstract: A fuel line may include a hollow elongate body having a first end and a second end. A first sealing member located on the first end of the hollow elongate body may have a monolithic construction and include a base region and a sealing region. The base region may have a first material hardness and the sealing region may have a second material hardness, the second material hardness being less than the first material hardness. A first connector may be coupled with the elongate body and the first connector and the first sealing member may be configured to sealingly connect to a fuel injector.

Abstract: The invention relates to an injection device for injecting high-pressure fuel into the combustion chamber of an internal combustion engine, the device comprising an injection valve assigned to a discrete reservoir chamber. A non-return valve operates between the chamber and the high-pressure supply line and the filter, which is preferably designed as an edge filter, forms a stop for limiting the opening motion of the valve member that is preferably designed as a valve member plate.

Abstract: A method for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions includes the steps of removing mechanical fuel injectors and associated components and installing of electronic unit fuel injectors and associated components. Also disclosed is a kit for retrofitting an existing EMD 567/645 two-cycle diesel engine to reduce exhaust emissions.

Abstract: An engine assembly may include a cylinder head, a cam cover and a fuel rail assembly. The cylinder head may define intake and exhaust ports and the cam cover may be fixed to the cylinder head. The fuel rail assembly may include a fuel rail, a bracket assembly and a fuel injector. The bracket assembly may be fixed to the fuel rail and may include a fastener and an isolation member. The fastener may be engaged with the cam cover and may secure the fuel rail thereto. The isolation member may be located between the fuel rail and the cam cover to isolate vibration therebetween. The fuel injector may be in communication with the fuel rail and may extend into a combustion chamber defined by the cylinder head at a location between the intake and exhaust ports.

Abstract: A connection arrangement for a fuel line. The fuel line has a pressure nipple having a forward a sealing surface and a rear pressure receiving surface. A cap screw element projects into the passage with a tube portion which when tightened exerts on a pressure transmission arrangement a force which is directed axially towards the nozzle holder and which is transmitted to the pressure receiving surface of the pressure nipple to press its sealing surface against a counterpart sealing surface on the nozzle holder. A sealing arrangement which seals off a first free space between the outside wall of the fuel line and the inside wall of the pressure transmission arrangement and a second free space between the outside wall of the pressure transmission arrangement and the inside wall of the passage relative to the exterior is positioned completely in the interior of the passage.

Abstract: A dual fuel connector separately supplies two different fuels to fluidly isolated fuel passages within a fuel injection valve of an internal combustion engine. The dual fuel connector comprises a body with separate fluid connections to the first fuel inlet, the second fuel inlet, a first fuel rail and a second fuel rail. A first fuel passage within the body is in fluid communication with the first fuel rail and the first fuel inlet. A second fuel passage within the body is in fluid communication with the second fuel rail and the second fuel inlet, and wherein the first fuel passage is fluidly isolated from the second fuel passage. The dual fuel connector supplies two different fuels to a fuel injection valve, for engines that are not designed with a cylinder head that has internal bores that can serve as fuel rails.