A fuel injector retention arrangement includes an interior space which extends into a fuel rail socket along an axis. A retention flange of a fuel injector extends radially outward therefrom such that the retention flange is disposed within the interior space. A slot extends radially from the interior space to a fuel rail socket exterior surface and a retention groove extends radially outward from the interior space. A retainer includes a first leg extending through the slot and a second leg extending through the slot, the first leg and the second leg being connected to each other at one end by a retainer base. A lobe of the first leg extends into the retention groove and supports the retention flange and a lobe of the second leg extends into the retention groove and supports the retention flange, thereby retaining the fuel injector to the fuel rail socket.

A protector protects a high-pressure fuel pump of an internal combustion engine. The protector and the high-pressure fuel pump are fastened to an engine body by a bolt inserted through a metal collar. The protector further includes an elastic insulating layer located between the collar and a carbon fiber reinforced plastic portion. The collar is embedded in the carbon fiber reinforced plastic portion with the insulating layer compressed.

A fuel supply device for an internal combustion engine includes a plurality of fuel injection valves that are disposed side by side in an engine main body or in an intake system component forming part of an intake system, and a fuel distribution pipe that is connected in common to the fuel injection valves and supported via a support part provided on the intake system component or on the engine main body, wherein the fuel distribution pipe is formed from a pipe material, and a restricting member that is a separate member from the fuel distribution pipe is mounted on the support part at a position adjacent to the fuel distribution pipe so as to abut against the fuel distribution pipe to suppress displacement of the fuel distribution pipe from the support part. Thus, it is possible to suppress displacement of fuel piping while ensuring the mass productivity.

A filter for filtering hydraulic fluid in a hydraulically actuated fuel injector. The filter includes a first disc structure and a second disc structure disposed axially spaced apart from the first disc structure. The second disc structure is also disposed parallel to the first disc structure. The filter further includes an intermediate structure extending from the first disc structure to the second disc structure. The intermediate structure includes a first surface and a second surface disposed opposite and parallel to the first surface. The intermediate structure defines a plurality of passages extending from the first surface to the second surface. Each of the plurality of passages is perpendicular to a longitudinal axis of the filter.

The invention relates to an arrangement for connecting at least one fuel injection valve with a fuel distributor of a fuel injection system of an internal combustion engine, which fuel distributor is detachably fastened to a cylinder head, wherein the at least one fuel injection valve is detachably fastened by means of a fixing element to a mounting element of the fuel distributor. It is provided that a non-cylinder-facing surface of the mounting element of the fuel distributor and a cylinder-facing surface of the fixing element, in the assembled state of the cylinder head and fuel distributor and also the fuel injection valve, are configured as contact surfaces, by means of which, through attachment of the fixing element to the fuel injection valve, it is possible to bring about an axial fixing and a radial orientation of the fuel injection valve in the cylinder head and in the mounting element of the fuel distribution rail.

Various embodiments may include a fuel injector cup assembly comprising: a fuel injector cup; a fastening bracket for securing a fuel injector to the cup; and a clamping arm for fastening the cup to an engine. The cup has a main body part with an internal volume. The cup comprises a one-piece body defining the main body part and an inlet stub containing a fuel inlet port hydraulically connectable to the fuel source. The stub has a first external dimension. The main body part has a second external dimension larger than the first external dimension to provide a shoulder supporting the clamping arm. An end of the cup remote from the stub has an outwardly extending flange supporting the fastening bracket.

A fuel rail arrangement for an engine includes a fuel rail mounting cradle and a fuel rail fixed to the cradle. The fuel rail includes one or more outlets connected to respective fuel injector pipes. The fuel rail arrangement includes a clamp to fix both the rail to the cradle and to fix the fuel injector pipes to respective outlets in the fuel rail.

A fuel injector assembly for an engine. The engine includes a cylinder head defining a through-hole. The fuel injector assembly includes an insert, having a first end and a second end, configured to be received within the through-hole and coupled to the cylinder head. The insert defines a bore extending from the first end to the second end. The fuel injector assembly further includes a fuel injector including a plurality of orifices, received within the bore of the insert; and a duct structure including a plurality of ducts, coupled to the insert such that the plurality of ducts align with the plurality of orifices to at least partially receive one or more fuel jets from the plurality of orifices of the fuel injector.

An electromagnetic actuator of a valve device, in particular in a common rail system of a motor vehicle, comprising an armature for actuating a valve element located in a duct, said armature being arranged in a housing and being movable axially along a longitudinal axis of the actuator when an excitation coil is energized, further comprising a pole core, characterized in that the electromagnetic actuator is designed as an electromagnetic adhesive system that comprises a plate-type armature which entirely covers planar end faces of the pole core that extend orthogonally to the longitudinal axis.

A filter for filtering hydraulic fluid in a hydraulically actuated fuel injector. The filter includes a first disc structure and a second disc structure disposed axially spaced apart from the first disc structure. The second disc structure is also disposed parallel to the first disc structure. The filter further includes an intermediate structure extending from the first disc structure to the second disc structure. The intermediate structure includes a first surface and a second surface disposed opposite and parallel to the first surface. The intermediate structure defines a plurality of passages extending from the first surface to the second surface. Each of the plurality of passages is perpendicular to a longitudinal axis of the filter.