A fuel system includes a fuel injector having an inlet conduit which extends along an inlet conduit axis and has an inlet conduit shoulder which is traverse to the inlet conduit axis. A fuel distribution conduit supplies fuel to the fuel injector, extends along a fuel distribution conduit axis, and has external threads which threadably engage internal threads of a connection nut. The connection nut has an internal shoulder which is traverse to the fuel distribution conduit axis. A retention member is a segment of an annulus and includes a central passage extending axially therethrough. The retention member is terminated in a direction circumferentially about the fuel distribution conduit axis by first and second end surfaces which together form a retention member slot therebetween sized to permit the inlet conduit to pass therethrough in a direction perpendicular to the fuel distribution conduit axis.

An engine (1) includes a cylinder head (3), a retainer (80), a pressing member (70), and an injector (40). The cylinder head (3) has an attachment hole (15) formed therein. The retainer (80) is attached to the cylinder head (3). The pressing member (70) has a pressed surface (77) configured to be pressed by the retainer (80). The injector (40) is inserted into the attachment hole (15) and has an indentation (46) configured to be pressed by the pressing member (70). The indentation (46) is arranged inside the attachment hole (15). The pressed surface (77) is arranged outside the attachment hole (15).

The invention relates to a device (10) for a common rail fuel injection system (102), wherein the device (10) comprises a one-piece module (12) which comprises a common fuel line (14) and a plurality of injector bodies (16) in fluid communication with the common fuel line (14). The present invention also relates to a vehicle (100) comprising such a device (10). The present invention also relates to a method of manufacturing a device (10) for a common rail fuel injection system (102).

A vibration damping system for injection systems of motor vehicles includes an actively controllable actuator element, which is situated at a component of the injection system. The actuator element is situated at the component in such a way that, during operation of the injection system a vibration reduction of the injection system is achieved with the aid of an active control of the actuator element.

A fuel distributor which has a pressure accumulator pipe for receiving pressurized fuel where the pressure accumulator pipe has a forged main body with a longitudinal cavity. At least one connector flange is configured in one piece from the same material on the main body. The connector flange has an injector connector with a connecting duct to the longitudinal cavity. A cup-shaped injector receptacle is joined to the injector connector. The injector receptacle is a single-piece deep-drawn part or a single-piece extruded part or a single-piece turn-milled part, and is connected to the injector connector by way of a fuel-tight join, or by way of brazing technology.

A fuel injection device includes at least one fuel injector and a receiving bore in a cylinder head as well as a receiving opening of a fuel rail for the fuel injector. The fuel injector is sealed using at least one sealing ring against the walls of the receiving opening and secured in the receiving opening with the aid of a fastening element. A compensating element is provided that acts on the fastening element to prevent bending moments as a result of an asymmetrical suspension of the fuel injector at the fastening element from acting on the fuel injector. The fuel injector device is particularly suitable for directly injecting fuel into a combustion chamber of a mixture-compressing, spark-ignition internal combustion engine.

In some examples, a fuel injector rail assembly may include a fuel rail including a tubular body, with a fuel outlet passage formed through a wall of the tubular body. An injector cup may be connected to the tubular body and may include an injector chamber configured to receive a fuel injector. A first fuel passage formed in the injector cup may include a first diameter, and the first fuel passage may be connected to the fuel outlet passage of the tubular body. Additionally, a second fuel passage may be formed in the injector cup between the first fuel passage and the injector chamber. The second fuel passage may have a second diameter that is smaller than the first diameter of the first fuel passage.

A fuel system includes a fuel injector having an inlet conduit which extends along an inlet conduit axis and has an inlet conduit shoulder which is traverse to the inlet conduit axis. A fuel distribution conduit supplies fuel to the fuel injector, extends along a fuel distribution conduit axis, and has external threads which threadably engage internal threads of a connection nut. The connection nut has an internal shoulder which is traverse to the fuel distribution conduit axis. A retention member is a segment of an annulus and includes a central passage extending axially therethrough. The retention member is terminated in a direction circumferentially about the fuel distribution conduit axis by first and second end surfaces which together form a retention member slot therebetween sized to permit the inlet conduit to pass therethrough in a direction perpendicular to the fuel distribution conduit axis.

A fuel injector assembly includes a fuel cup, a fuel injector, and a bolt. The fuel cup defines a cavity and a cup inlet. The fuel injector includes an injection tip and an upper housing. The injection tip defines a fuel outlet opposite the upper housing. The upper housing defines a fuel inlet and a threaded bore. The fuel inlet is disposed within the cavity and in fluid communication with the cup inlet. The threaded bore is disposed within the fuel cup. The bolt is threadably engaged with the threaded bore. The bolt couples the upper housing to the fuel cup.

An apparatus, method, and system for aligning at least one injector body to be installed into an engine block along a first direction. The alignment apparatus includes a first alignment member configured to swing between a clearance position and an alignment position, wherein the first alignment member is configured to align the at least one injector body along a second direction when in the alignment position. The apparatus further includes a second alignment member configured to align the at least one injector body along a third direction by contacting the at least one injector body via a first and second contacting portion.