A driveshaft assembly, for example in an Electronic Unit Injector, Unit Injector or Electronic Unit Pump testing machine, wherein an indexing arrangement, such as complementary external and internal splines, enables a cam to be mounted on a shaft at a number of discreet positions, each providing a different offset of a central axis of the base cylinder section from a central axis of the shaft, each position providing a different maximum lift value of a plunger in contact with the cam, directly or via a rocker arm.

A fuel injector (1) including a fuel injector housing (2), a valve seat (4) formed at one end of the fuel injector housing, and a valve body (10) disposed in the fuel injector housing and operable to open and close a spray hole (20) in the valve seat. The valve seat includes a base portion (16) and insert portion (26) having spray holes (8) that is secured to the base portion (16).

A roller lifter includes a lifter body having a cylindrical peripheral wall with a sliding surface on an outer periphery thereof and a roller rotatably mounted via a shaft member on the lifter body and brought into contact with a cam. The sliding surface is reciprocally slid in a sliding hole of a lifter guide. The peripheral wall has a thicker part in a part thereof in a circumferential direction. The thicker part is shaped such that a thickening part is annexed to an outer wall part formed continuously with a constant thickness in the circumferential direction. The thicker part is formed with a rotation stopper bulging outward. The rotation stopper enters a guide groove communicating with the sliding hole of the lifter guide.

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 high-pressure fuel pump for a fuel injection system of an internal combustion engine includes a pump housing and at least one fastening flange that is fixed to the pump housing by a welding. The welding has one weld region and at least one weld bead arranged laterally from the weld region. The weld bead is arranged in a receiving space formed between the pump housing and the fastening flange.

A fuel injector includes a fuel inlet; a fuel injector body; an outlet body having an upstream surface, a downstream surface, and an outlet aperture fluidly connecting the upstream surface to the downstream surface; and a valve assembly which controls flow through the outlet aperture. The outlet body includes a 2-dimensional matrix of cells on the downstream surface and includes a perimeter having a finder pattern and a timing pattern and also includes a field of unpopulated and populated cells within the perimeter which represent bits of data. The 2-dimensional matrix of cells orients the outlet body relative to the fuel injector body.

The present disclosure relates to a pulsation dampening structure for a vehicle. The pulsation dampening structure includes a fuel rail, a rail plug disposed at an end portion of the fuel rail, and a pulsation dampening part disposed on the rail plug to dampen pulsation generated when fuel enters. A turbulent flow is caused by reflecting fuel which was entered, and a vortex is generated in the fuel, thereby dampening pulsation.

A fuel injector, including a valve insert and a plug extrusion coating, is described, the valve insert including a valve sear and a valve housing. The valve housing has an alignment device, which is equipped to align the valve insert in an injection molding die, and the plastic extrusion coating has a second alignment device which is equipped to align the fuel injector during assembly in an internal combustion engine.

The present disclosure relates to a fuel rail assembly for an internal combustion engine. In some embodiments, a fuel rail assembly for an internal combustion engine may include an elongated tubular fuel rail and a plurality of fuel delivery lines branching off from the fuel rail for hydraulically coupling the fuel rail to fuel injectors operable to inject fuel into the combustion engine. Also, an injector cup for receiving a fuel inlet portion of a respective one of the fuel injectors, a pipe arranged between the fuel rail and the injector cup for hydraulically coupling the injector cup to the fuel rail, and a fixation bracket configured for positionally fixing the fuel delivery line with respect to the engine. The injector cup, the pipe, and the fixation bracket are individual parts. A rigid connection is established between the fixation bracket and a portion of the pipe, said portion spaced apart from each of the fuel rail and from the injector cup. The fixation bracket is a one-pieced part which adjoins the pipe and is spaced apart from the injector cup and the fuel rail.

A method for manufacturing an injector having an extrusion coating, including the following steps: providing an injection module, pushing a disk-shaped alignment element onto a part of the injection module, the alignment element having a slot in order to have sufficient flexibility, welding the alignment element onto the part of the injection module, at least part of the slot also being welded shut at the same time during the welding-on step in order to stiffen the alignment element, and molding the extrusion coating onto the injection module.