A fluid distributor for an injection system, in particular a fuel distributor rail for a fuel injection system for mixture-compressing, spark ignition internal combustion engines. The fuel distributor includes a tubular base body, which is preferably processed by a one-stage or multi-stage forging process, a first high-pressure output, a second high-pressure output, a third high-pressure output, and a fourth high-pressure output being provided at the base body. The second high-pressure output is situated offset by a predefined distance compared to the first high-pressure output in a first direction along a longitudinal axis of the tubular base body. The third high-pressure output is situated offset by the predefined distance compared to the second high-pressure output along the longitudinal axis in the first direction, the fourth high-pressure output being situated offset by the predefined distance compared to the third high-pressure output along the longitudinal axis in the first direction.

A multipoint fuel injection system comprises an injection system segment including a circumferentially extending outer support defining a fuel manifold with a plurality of manifold passages extending circumferentially therethrough. A first connector is included at a first circumferential end of the outer support and a second connector is included at a second circumferential end of the outer support opposite the first circumferential end. The first and second connectors are each configured to connect each manifold passage with a manifold passages of a respective outer support of a circumferentially adjacent injection system segment. The system includes a circumferentially extending inner support and a plurality of circumferentially spaced apart feed arms extending radially between the inner support and the outer support. A plurality of outlet openings extend in an axial direction from each feed arm for feeding respective injection nozzles.

A pipe section of a common rail line is provided for the high-pressure injection of a fluid. The pipe section has at least a first pipe and an adapter in which the first pipe has a wall and extends at least along an axial direction. The wall has an inner circumferential surface and an outer circumferential surface and encloses a first line. The adapter has a connector piece and a second pipe. The connector piece extends annularly around the first pipe and is situated on the outer circumferential surface. A second line that is formed by the second pipe is fluidically connected to the first line via a first opening in the first pipe and a second opening in the connector piece. At least the adapter is manufactured by a metal powder injection molding process. Two methods for manufacturing a pipe section are also provided.

An electronic fuel injection throttle body unit has a core body with two side components. The two side components each including a fuel delivery passage. Four air intake passages extending vertically through the throttle body. Valves are rotatable within the air intake passages. The valves being connected to valve shafts that rotate about respective valve shaft axes. The valve shaft axes and the fuel delivery passages are perpendicular to each other.

A retainer for fastening a component, especially a fuel distributor, via a holding element to an internal combustion engine includes: decoupling elements, a fastening body and a fastening element. The fastening body is fastened to the internal combustion engine with the aid of the fastening element. In addition, the holding element is fastened to the fastening body via the decoupling elements. Moreover, a preloading element is provided that is joined to the fastening body, preloading of the decoupling elements being set by way of a predefined position of the preloading element relative to the fastening body in which the preloading element is joined to the fastening body.

A fuel rail assembly for an internal combustion engine is disclosed. It includes a main gallery and a plurality of fuel delivery outlets. Each fuel delivery outlet has an injector cup and an injector cup mounting connection arranged between the main gallery and the injector cup. A fixing bracket is adapted to fasten the main gallery to the engine. The fixing bracket is spaced apart from the injector cup and secured to the main gallery. A fastening element is provided to secure the fixing bracket to the engine. A rigid connection member is coupled to the fixing bracket extends between the fixing bracket and one of the injector cup and the injector cup mounting connection.

A system and method are provided for evacuating fuel from a closed-loop fuel rail after engine testing. The method includes coupling a coaxial hose to a closed-loop fuel rail of an engine. The coaxial hose defines an outer tube section defining an outer passage and surrounding an inner tube section defining an inner passage, and a portion of the inner tube section is inserted a predetermined distance into the fuel rail. The method includes transferring fuel from a fuel supply through the outer passage of the coaxial hose and into the fuel rail for use during an engine testing procedure. After the engine testing procedure is complete, the method includes injecting compressed gas through the inner passage and into the fuel rail, creating a positive pressure. Residual fuel is evacuated from the fuel rail out through the outer passage of the coaxial hose.

A bearing sleeve for a holder, which is used for fastening a fuel distributor on an add-on structure, includes a first sleeve part and a second sleeve part. The first sleeve part has a rigid sleeve body and a damping element which is integrally connected to the sleeve body of the first sleeve part. The second sleeve part has a rigid sleeve body and a damping element which is integrally connected to the sleeve body of the second sleeve part.

An injector system which is in particular used as an injector block for fuel injection systems of mixture-compressing, spark-ignited internal combustion engines includes a fuel distribution rail, a counter bracket, a first injector, and at least one second injector. Here, the counter bracket has a first connecting piece and a second connecting piece. The first injector is joined to the counter bracket on an input side of the first connecting piece with the aid of an elastic sealing ring. The second injector is joined to the counter bracket on an input side of the second connecting piece with the aid of an elastic sealing ring. In this case, the counter bracket is connected to the fuel distribution rail. The fuel distribution rail is used for distributing compressed natural gas to the injectors. The injector system has a compact design.

Provided is a fuel rail that can achieve a reliable seal between a rail main unit and a cup, involving a short welding distance or a reduced amount of a brazing filler metal. In the fuel rail, a rail main unit 2 has a central hole and a rail main unit-side communication hole 10 that provides communication between the central hole and an outside of the rail main unit 2. An injector receiving member 5 has an injector insertion hole 7 into which an injector is inserted. The injector receiving member 5 is mounted in the rail main unit 2 such that the rail main unit-side communication hole 10 and the injector insertion hole 7 communicate with each other. The injector receiving member 5 has an injector receiving member-side communication hole 9 that provides communication between the rail main unit-side communication hole 10 and the injector insertion hole 7. A metal fusion zone 12 is formed, by way of an inside of the injector receiving member 5, in a bond between the rail main unit 2 and the injector receiving member 5, to thereby seal the bond.