Abstract: The invention relates to a common rail for a common rail fuel injection system of an internal combustion engine, and to a method of making such a common rail, having a hollow base body that is equipped with a plurality of connection openings. To enhance the high-pressure strength, the interior of the base body is embodied as substantially flat in the region of the connection openings.

Abstract: The invention relates to a high-pressure fuel reservoir a common rail fuel injection system of an internal combustion engine, with a plurality of fittings for connection fuel lines. In order to improve the mobility of the fuel lines in the connections, an intermediary piece is disposed in each of the fittings between the high-pressure fuel reservoir and the fuel lines.

Abstract: A method for optimizing the geometry of a line providing fluid communication between an outlet of a pump and an inlet, the pump and inlet each having a fixed location, where the pump imposes a periodic pressure pulse on the tubing composing the line. The method comprises the steps of identifying a basic design of the line using conventional industry practices for the specific application and making an initial determination as to the minimum number of bends which are required by the basic line design. If the tubing must be bent, the bend routing is established to best fit the installation constraints set by the design layout, the radii of the bends is maximized within installation constraints using one common radius, a finite element analysis is performed to determine the minimum and maximum loading on the tubing imposed by the expected pressure pulse and the material of the tubing is selected to satisfy design safety factors with the minimal material cost.

Abstract: A fuel injector (1) for the direct injection of fuel, especially into the combustion chamber of a mixture-compressing internal combustion engine having external ignition, is located in a cylinder head (2) of the internal combustion engine in a receiving bore (8) of the cylinder head (2), and includes a nozzle body (10) and a sealing ring (14) which seals the fuel injector (1) from the cylinder head (2) of the internal combustion engine. At an end (12) on the discharge side of the fuel injector (1), an at least partially spherical body (13) is formed which abuts at least partially against a wall (9) of the receiving bore (8), a groove (15) being circumferentially formed on the body (13) in which the sealing ring (14) is positioned.

Abstract: The invention relates to a fuel injection system for an internal combustion engine. The inventive fuel injection system comprises a high-pressure pump (1) for delivering the fuel from a fuel reservoir (2) and a number of fuel injectors (5) for injecting the fuel into the combustion chamber of the internal combustion engine. The system is further provided with a high-pressure fuel line (4) that links the high-pressure pump (1) with the fuel injectors (5) and that contains a high-pressure reservoir (3). A fuel return line (11) returns the fuel that was not injected by the fuel injectors (5) and a leakage line (12) returns the leakage amounts that occur at the fuel injectors (5). According to the invention the high-pressure fuel line (4), the fuel return line (11) and the leakage line (12) are combined in a common fuel line (13) which is characterized by cross-sections of flow that are separated from one another by walls and that correspond to the individual lines (4, 11, 12).

Abstract: A flexible fuel rail system for fuel injection systems for internal combustion piston engines, particularly for engines having at least one or more banks of aligned cylinders. The fuel rail system incorporates two or more longitudinal fuel rails, connected by one or more crossover sections. The crossover section(s) include(s) one or more sections of enhanced flexibility, preferably corrugations. The fuel rails, crossover sections and sections of enhanced flexibility are preferably all fabricated from metal, preferably monolithically formed from a single piece of metal. The fuel rails preferably are provided with non-circular cross-sectional configurations, so that the walls of the fuel rails will flex, under the influence of fuel pressure pulsations caused by the fuel injectors, so as to substantially reduce or eliminate the negative impacts of such pulsations on the operation of the other injectors in the fuel injection system.

Abstract: In dual fuel engines, it is desirable to have injection of two distinct quantities of liquid fuel. Engines with these operating requirements have typically used two separate fuel injectors, or two separate nozzle assemblies, to satisfy this need. However, these systems can be rather complex and difficult to control. In addition, engineers have learned that fuel injectors having direct control have better performance which can increase engine efficiency. Therefore, the present invention addresses the needs of engines desiring injection of two distinct quantities of fuel, such as dual fuel engines, by utilizing a direct control fuel injector having a dual concentric check having separate orifices for the pilot and main injections.

Abstract: The present invention finds application in engines using mechanically actuated electronically controlled fuel injectors having direct control needle valves. In valves such as these, a spill control valve member controls fuel pressurization within the injector while a needle control valve member controls the timing and duration of the injection event. However, when the momentum of fuel exiting the fuel injector past the spill valve is greater than that of the tappet and plunger moving toward their downward positions, engine components upstream of the tappet can briefly separate and re-engage, which can result in increased mechanical noise levels. Therefore, the present invention is directed to maintaining sufficient contact force in the various engine components to reduce the mechanical noise levels by positioning a flow restriction between the fuel pressurization chamber of the fuel injector and a fuel source.

Abstract: A convoluted tubing assembly for use in essentially fluid-tight connection with a suitable connector body which includes a multi-layer or single layer tubing having an elongated cylindrical wall having an outer surface and inner surface parallel to the outer surface. The inner surface defines an essentially unobstructed circular interior opening extending longitudinally through the tube. The tubing includes a first region in which the cylindrical wall is essentially parallel to the longitudinal axis running coaxially through the cylindrical interior. The tubing includes another region continuous to the first region, wherein the other region includes at least one corrugation in the cylindrical wall. The corrugated region has a cross sectional diameter which varies depending on position with respect to the corrugations longitudinal length and has a diameter different from the essentially uniform cross section diameter of the first region.

Abstract: A fuel supply device for an internal combustion engine having at least one cylinder that is formed in a cylinder block, a fuel injection valve and a fuel passage that supplies fuel to the fuel injection valve, includes a portion of the fuel passage that is formed as a delivery pipe that is embedded in a cylinder head and is joined to an upper portion of the cylinder block. The fuel injection valve is positioned so that it intersects the delivery pipe and receives the supply of fuel from the side at a portion that intersects with the delivery pipe, and a sealing member is positioned at the joint portion between the delivery pipe and the fuel injection valve.

Abstract: The invention relates to a piston engine comprising an engine block that contains several cylinders. The inventive piston engine also comprises a fresh-gas supply device that is provided with several supply pipes (1) which are arranged on the cylinders and are fixed to the engine block. Said piston engine further comprises a fuel injection system that is provided with a high-pressure supply line (5) which is allocated to the cylinders. The aim of the invention is to fix the supply pipes (1) and the high-pressure supply line (5) to the engine block in a simpler manner. Holding-down clamps (7) for the supply pipes (1) are configured on the high-pressure supply line (5) in such a way that the high-pressure supply line (5) fixes the supply pipes (1) to the engine block.

Abstract: A manifold assembly comprises an air intake manifold (42) having at least one duct (70) communicating air to an engine and a fuel conduit (46) having at least one fuel injector (54A) for communicating fuel to the engine (52) (FIG. 2). The fuel conduit (46) comprises at least a first fuel injector (54A) and a second fuel injector (54B) extending from the fuel conduit (46) wherein the first fuel injector (54A) extends in a direction transverse to the second fuel injector (54B). At least one support member (50A) comprises at least one duct passage (62C) in communication with the at least one duct and at least one fuel injector port passage (53C) in communication with the at least one fuel injector (54C) (FIG. 2A). The fuel injector port passage (53C) has a predetermined length greater than the length of the duct passage (62C) (FIG. 2A).

Abstract: A clamping element for a fuel injector (18) that is insertable into a mounting hole of a cylinder head (26) of an internal combustion engine and directly injects fuel into a combustion chamber of the internal combustion engine has a first step ring (19). This at least partially surrounds the fuel injector (18) and has a valve pressure surface (20) that may rest on the fuel injector (18). The first step ring (19) has at least one circumferential slope surface (21) on its side facing away from the valve pressure surface (20), which engages with a corresponding circumferential slope surface (24) of a second step ring (22), which has a counterpressure surface (23). The slope surfaces (21, 24) are arranged so that the first step ring (19) and the second step ring (22) are pressed axially apart when they are rotated relatively to one another.

Abstract: Through a series of valves that are preset to control the fuel flow, volume low and high for starting, idling and high maximum RPM engine running. The fuel delivery system is coupled to fuels of choice. Fuels consisting of the following: Liquefied petroleum gas (LPG), compressed natural gas (CNG), liquefied natural gas (LNG), and biogas. It can also be used with a combination of gases and liquefied hydrocarbon fuels.

Abstract: The invention relates to a common rail injector for the injection of fuel in a common rail injection system of an internal combustion engine, which has an injector housing with a fuel inlet that communicates with a central high-pressure reservoir outside the injector housing and communicates with a pressure chamber inside the injector housing, from which highly pressurized fuel is injected depending on the position of a control valve, which assures that a nozzle needle, which can move axially back and forth in a longitudinal bore in the injector housing counter to the initial stress of a nozzle spring, lifts up from a seat when the pressure in the pressure chamber is greater than the pressure in a control chamber, which can be connected via an inlet throttle to the fuel inlet and can be connected via an outlet throttle to a relief chamber, and in order to produce a common rail injector which is simple in design and inexpensive to produce, the connection between the fuel inlet and the pressure chamber is dispo

Abstract: Injectors 105 (#1 to #3) are connected to a connector block body 130 and an external wiring connector 150 is formed on the connector block body 130. The external wiring connector 150 has external wiring independent connecting terminals 151 to 153 and an external wiring common connecting terminal 158. Wires are wound around wiring guides 158a, 161, 162, 165 to 170, 173, 174 and are hooked on wiring guides 163, 164, 171, 172, which wiring guides are provided in the connector block body 130. Wires 111 to 113 121 to 123 are installed without crossing each other between injector connecting terminals 101a, 102a, 103a, 101b, 102b, 103b of the injectors 105 and external wiring connecting terminals 151 to 153, 158.

Abstract: An improved closed nozzle injector assembly for injecting high pressure fuel into the combustion chamber of an engine is provided which includes a first needle valve element associated with a first set of injector orifices, a first needle valve control device for controlling the opening and closing of the first needle valve, a second needle valve associated with a second set of injector orifices and a second needle valve control device for controlling the opening and closing of the second needle valve. Each needle valve control device includes a control volume positioned at one end of the respective needle valve, a control volume charge circuit for supplying high pressure fuel to the respective control volume and the respective injection control valve for controlling the flow of high pressure fuel from the respective control volume to a low pressure drain thereby controlling the movement of the respective needle valve.

Abstract: A fuel injector has at least two generally parallel feed strips. Each of the feed strips is constructed from a single bonded together pair of lengthwise extending plates, each plate having a single row of widthwise spaced apart and lengthwise extending parallel grooves. The plates in each strip are bonded together such that opposing grooves in each of the plates are aligned forming internal fuel flow passages through the length of the strip from an inlet end to an outlet end of the strip. The inlet ends are spaced apart from each other and the outlet ends are spaced apart from each other. Each of the feed strips has one or more convolutions along a length of the strip and the feed strips are not bonded together along the convolutions. The feed strips may be spaced apart from each other or may be in contact with each other.

Abstract: The invention relates to a common rail for a common rail fuel injection system of an internal combustion engine, having a tubular base body which is equipped with a plurality of connection openings. To enable the common rail to withstand higher pressures than conventional common rails, according to our embodiment at least two connection openings are disposed diametrically opposite one another in the tubular base body. In a further version of the invention, diametrically opposite at least one of the connection openings, there is a machining opening, which is closed by a closure plug.

Abstract: A connection stub and a housing, in particular a high-pressure fuel reservoir, for fuel injection system for internal combustion engines with a welded connection stub, are proposed, in which sealing faces between the housing and the connection stub are provided, spatially separately from the weld seam.

Abstract: The present invention relates to a leak fuel connection, in particular for a common rail system or a common rail injector, for connecting a leak fuel line (2) via a connecting conduit (3) to a connection end piece (4). The leak fuel connection (1), on the outer circumference of a component (18) on which the leak fuel connection (1) is provided, has an at least intermittently annularly embodied conduit (5), into which the connecting conduit (3) for connecting to the leak fuel line (2) discharges. The annular conduit (5) is connected to the connection end piece (4) via a connection element (6).

Abstract: In dual fuel engines, it is desirable to have injection of two distinct quantities of liquid fuel. Engines with these operating requirements have typically used two separate fuel injectors, or two separate nozzle assemblies, to satisfy this need. However, these systems can be rather complex and difficult to control. In addition, engineers have learned that fuel injectors having direct control have better performance which can increase engine efficiency. Therefore, the present invention addresses the needs of engines desiring injection of two distinct quantities of fuel, such as dual fuel engines, by utilizing a direct control fuel injector having a dual concentric check having separate orifices for the pilot and main injections.

Abstract: A fuel delivery system comprises a fuel conduit having a gas permeable wall. A gas conduit is in communication with the fuel conduit. Gaseous fuel and liquid fuel are communicated through fuel conduit. Gaseous fuel permeating through the gas permeable wall is captured and channeled by gas conduit. Gaseous fuel may be passed to an air intake manifold and consumed by engine combustion.

Abstract: A common rail housing for a common rail injection system is composed of a pressure accumulation pipe whose outer circumference is formed in complete round shape in cross section and which is provided inside with a pressure accumulation chamber having oval cross section and a plurality of blanch pipes each of which is provided inside with a fuel conduit bore. Outer circumference of the oval cross section has a specified portion whose curvature is smaller than that of complete round shape having an area equal to that of the oval cross section. Each of the blanch pipe is connected to the pressure accumulation pipe so that the fuel conduit bore and the pressure accumulation chamber intersect nearly perpendicularly to each other at the specified portion. Accordingly, when fuel is supplied to the pressure accumulation chamber, not only the stresses concentrated on the specified portion are limited but also wall strength of the pressure accumulation pipe at the specified portion is reinforced.

Abstract: A fuel injector module for an internal combustion engine having two banks of cylinders includes a longitudinally extending central portion with opposing sides, at least two branches extending laterally from one of the opposing sides, and at least two more branches extending laterally from the other of the opposing sides. Each of the branches includes an injector receptacle for housing a fuel injector that injects fuel into a respective cylinder. Each of the branches also includes an electrical connector adjacent the injector receptacle for providing electrical power to the fuel injector. Preferably, each of the electrical connectors includes a pogo-pin electrically coupled to the fuel injector.

Abstract: A common rail includes a main pipe rail having a circulating passage extending in its inside in the axial direction thereof, branch holes formed in an axial peripheral wall portion of the main pipe rail, and branch connectors connected to the respective branch holes integrally or via separate connecting members. A Ni-diffused fatigue strength reinforcing layer is formed by heating a Ni layer plated in advance on at least a portion of an inner circumferential surface of the common rail. The increased strength and the action of the fatigue strength reinforcing layer lowers the degree of fatigue concentration to increase fatigue strength against inner pressure.

Abstract: An improved fuel supply arrangement for a direct fuel injected engine. In one feature, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a fuel injector for directly injecting the fuel into combustion chamber of the engine and a flexible conduit for connecting the high pressure fuel pump and the fuel injector. In another feature that is for a multi-cylinder engine, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a plurality of fuel injectors for directly injecting the fuel into respective combustion chambers of the engine, a fuel supply rail for supplying the fuel from the high pressure fuel pump to the fuel injectors and a flexible conduit for connecting the high pressure fuel pump and the fuel supply rail.

Abstract: The invention relates to a high-pressure fuel reservoir for a common rail fuel injection system of an internal combustion engine, with a tubular base body which has a blind bore extending in the longitudinal direction and a number of connections. In order to improve the high-pressure-tightness and the service life of the high-pressure fuel reservoir, a stopper is disposed in the closed end of the blind bore.

Abstract: A V-type diesel engine with a common rail, which does not elongate a total length of the engine even if a supply pump and/or common rail becomes longer. Two intake manifolds are mounted on inner walls of two banks of the engine. The common rail spans these intake manifolds to leave space below itself. The fuel pump is located at a bottom of an interbank valley of the banks and the common rail extends above the fuel pump so that the fuel pump and common rail can extend in an overlapping manner. The space below the common rail can accommodate other devices such as turbocharger and EGR cooler. Thus, a compact engine can be designed. The common rail bridging the intake manifolds also serves as a reinforcing member against vibration of the two banks.

Abstract: A high-pressure fuel reservoir is proposed in which the hydraulic connection between the connection fitting and the reservoir chamber is produced by a number of connecting bores. This reduces the stress peaks in the vicinity of the intersections of the connecting bore and reservoir chamber so that the compression capacity of the high-pressure fuel reservoir increases.

Abstract: The invention relates to a method for machining a common rail for a common rail fuel injection system of an internal combustion engine, having a base body, which is equipped with a plurality of connection openings. The invention also relates to a common rail and to a connection stub for application of the method. In the method, the base body is deformed in the region of the connection openings. In the region of each of the connection openings, one through bore is provided, which has two segments of different-sized internal diameters. The connection stub of the invention is characterized in that the outside diameter of the connection stub, on its end toward the common rail, is substantially equivalent to the internal diameter of the segment of the through bore in the common rail having the larger diameter.

Abstract: An improved fuel supply arrangement for a direct fuel injected engine. In one feature, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a fuel injector for directly injecting the fuel into combustion chamber of the engine and a flexible conduit for connecting the high pressure fuel pump and the fuel injector. In another feature that is for a multi-cylinder engine, the fuel supply arrangement comprises a high pressure fuel pump for developing high pressure in fuel, a plurality of fuel injectors for directly injecting the fuel into respective combustion chambers of the engine, a fuel supply rail for supplying the fuel from the high pressure fuel pump to the fuel injectors and a flexible conduit for connecting the high pressure fuel pump and the fuel supply rail.

Abstract: A fuel injector module for an internal combustion engine having two banks of cylinders includes a longitudinally extending central portion with opposing sides, at least two branches extending laterally from one of the opposing sides, and at least two more branches extending laterally from the other of the opposing sides. Each of the branches includes an injector receptacle for housing a fuel injector that injects fuel into a respective cylinder. Each of the branches also includes an electrical connector adjacent the injector receptacle for providing electrical power to the fuel injector. Preferably, each of the electrical connectors includes a pogo-pin electrically coupled to the fuel injector.

Abstract: In a fuel high pressure accumulator for fuel injection devices an intersecting region between a storage chamber and a connection opening of a connection pipe, as well as a region of an outer wall which is opposite to the connecting region are designed to improve pressure strength.

Abstract: An engine of an outboard motor includes a fuel injection system. In a preferred mode, the fuel injection system comprises a high pressure fuel system and a vapor separator assembly. The high pressure fuel system includes a fuel injector that is removably attached to the engine. The vapor separator assembly includes a vapor separator and is also removably attached to the engine. The high pressure fuel system and said vapor separator assembly are connected by a quick connector. Preferably, one end of the quick connector is formed from an outlet end of a fuel filter.

Abstract: A fuel system is provided for supplying fuel to a fuel injector associated with a cylinder head, wherein the fuel injector has an opening and the cylinder head has a bore. The fuel system includes a fuel pipe disposable in the bore of the cylinder head and including a pipe body having first and second ends. The first end is engageable with the fuel injector and alignable with the opening. The fuel system further includes a fuel line assembly including a fuel line having an end that is engageable with the second end of the pipe body. The assembly further includes a rotatable nut engageable with the fuel line and threadingly engageable with the cylinder head for urging the end of the fuel line into engagement with the second end of the pipe body to thereby urge the first end of the pipe body into engagement with the fuel injector.

Abstract: A fuel injection system for direct injection of fuels into at least one combustion chamber of an internal combustion engine has at least one fuel injection valve for each combustion chamber which can be inserted at a spray section into a respective receptacle bore hole, which is designed on the cylinder head of the internal combustion engine and has a fuel inlet opening on an inlet section. This fuel injection system also has a fuel distributor line which has a fuel outlet opening for each fuel injection valve which can be connected to the fuel inlet opening of the fuel injection valve. A tubular transition piece is arranged between the fuel inlet opening of each fuel injection valve and the respective fuel outlet opening and can be snarlingly connected to the fuel inlet opening of the respective fuel injection valve and to the fuel outlet opening of the fuel distributor line so that it can move within predetermined limits.

Abstract: The invention relates to a high-pressure fuel reservoir for a common-rail fuel injection system of an internal combustion engine, having a tubular base body, which has a substantially circular-cylindrical interior disposed centrally with respect to the longitudinal axis of the tubular base body, which interior communicates with a plurality of connection openings. To enhance the high-pressure strength by simple provisions, the cross section of the tubular base body, in the portions in which the connection openings are disposed, is embodied in weakened form.

Abstract: A connector for communicating fluid between a fluid rail and a fuel injector. The connector comprises a tubular member extending along a longitudinal axis between a first end and a second end, a first member adapted to form a seal between the tubular member and the fluid rail, and a second member adapted to form a seal between the tubular member and the fuel injector. The tubular member includes an interior surface and an exterior surface, and further includes first and second projections from the exterior surface. The first projection defines a first shoulder and the second projection defines a second shoulder. The first projection is adapted to be received within the fluid rail and the second projection is adapted to be received within the fuel injector. The tubular member is adapted for axial displacement relative to at least one of the hydraulic fluid rail and the fuel injector. The first member contiguously engages the first shoulder, and the second member contiguously engages the second shoulder.

Abstract: There is provided a diesel engine fuel injection pipe which is capable of suppressing pressure variations in the fuel injection pipe and effecting stable injection of fuel and which has a connection portion sealed with high stability. A diesel engine fuel injection pipe includes a head having a conical or spherical seat surface, a clamping nut, and an orifice-pipe disposed at an end of the fuel injection pipe or in the interior of the fuel injection pipe near the end thereof, the orifice pipe having an outer diameter smaller than or equal to the diameter of a pipe passage of the diesel engine fuel injection pipe in the interior of the diesel engine fuel injection pipe near at least one end portion thereof.

Abstract: A manifold assembly comprises an air intake manifold (42) having at least one duct (70) communicating air to an engine and a fuel conduit (46) having at least one fuel injector (54A) for communicating fuel to the engine (52) (FIG. 2). The fuel conduit (46) comprises at least a first fuel injector (54A) and a second fuel injector (54B) extending from the fuel conduit (46) wherein the first fuel injector (54A) extends in a direction transverse to the second fuel injector (54B). At least one support member (50A) comprises at least one duct passage (62C) in communication with the at least one duct and at least one fuel injector port passage (53C) in communication with the at least one fuel injector (54C) (FIG. 2A). The fuel injector port passage (53C) has a predetermined length greater than the length of the duct passage (62C) (FIG. 2A).

Abstract: There is provided a common rail which can effectively restrict a generation of a stress in a lower end inner peripheral edge portion of a branch hole and can improve an internal pressure fatigue strength in a branch pipe connecting portion, so that a secure and stable function can be obtained by having an excellent durability and preventing a fluid leakage due to a generation of the crack generation and a method of manufacturing a common rail in which a pressure application process by the press is only added to a normal manufacturing process, no complex equipment is required, a common rail having a high quality can be manufactured by a low cost without generating problems that an equipment cost is increased by an increase of the process and a productivity is reduced.

Abstract: An integrated fuel rail portion and mounting bracket assembly is provided. The assembly includes an elongated support portion and at least one mounting bracket integrally connected to the elongated support portion. A method of forming the assembly is also provided.

Abstract: An integrated fuel delivery module for a fuel injected engine includes a fuel rail having a fuel distribution channel and a plurality of spaced-apart fuel injector sockets connected with the fuel distribution channel. A high-pressure fuel pump has a high-pressure chamber connected internally to the fuel distribution channel without external high-pressure fuel lines.

Abstract: An integrated fuel rail portion and mounting bracket assembly is provided. The assembly includes an elongated support portion and at least one mounting bracket integrally connected to the elongated support portion. A method of forming the assembly is also provided.

Abstract: At least two torque paths between a driver and a camshaft distribute dynamic torque applied to the camshaft, allowing for cancellation of undesirable torque components. The second torque path has a greater number of gears than the first torque path, and acts as a constraint on the camshaft, ameliorating discontinuities in camshaft rotation due to sudden changes in load on the camshaft.

Abstract: Injectors 2 are connected to a common rail 4 via respective dispensing conduits 3. A mixture of a liquid fuel fed from a liquid fuel tank 2 and an additional fluid fed from an additional fluid tank 9 is formed, and is fed to the common rail 4. The additional fluid contained in the mixture is turned to its supercritical state, and the mixture is injected from the injectors 2 to the engine. The inlets of the dispensing conduits 3 are positioned, with respect to the common rail 4, to open out into a liquid fuel layer which will be formed in the common rail 4 when a separation of the mixture occurs.

Abstract: There are provided with a plurality of injection nozzles one ends of which are respectively inserted into a cylinder head every cylinder and other ends of which are covered with a cylinder head cover. A single common rail provided in parallel with a crankshaft is connected to a fuel injection pump through a first fuel pipe and connected to each injection nozzle through a plurality of second fuel pipes. The common rail is housed in the cylinder head cover, the front end of a first short pipe protruded from the common rail faces a first insertion portion formed in the sidewall of the cylinder head, and the first fuel pipe is connected to the first short pipe through the first insertion portion. Thereby, it is possible to decrease a fuel supply system using the common rail in weight and cost and improve the outside quality.

Abstract: In molding a connector block 1 for injectors including a fuel passage 3 integrally formed, a fuel rail 4 including the fuel passage 3 is advancedly formed by a first molding. The fuel rail 4 is provided with a plurality of positioning projections 7 with respect to metal molds for a secondary molding in a longitudinal direction. The fuel rail 4 is set in a position and placed in the metal molds. When the secondary molding is conducted in this state, the fuel rail 4 will not be subjected a positional displacement, but can be accurately molded.

Abstract: A fuel injection valve for internal combustion engines, having a holder body, which can be braced with a valve body that protrudes into the engine combustion chamber. A fuel inflow conduit extending from one end is provided that is formed by a longitudinal bore and a transverse bore that intersects the longitudinal bore. The injection port of the transverse bore forms a lateral pressure connection on a radial circumferential wall of the holder body for a fuel delivery line. In the region of a radial circumferential wall face opposite the lateral pressure connection, the holder body has a radially inward-pointing flat face.