A fuel injector suitable for gaseous fuels comprises an injection nozzle having a tip region that is shaped to define a valve seat that extends about a central outlet opening and an outward opening injection needle slidably received in the injection nozzle. A nozzle cap is received over the tip region of the injection nozzle, wherein the tip region and the nozzle cap are configured to define an thermal barrier layer between them to reduce thermal transfer. The nozzle cap is releasably clipped onto the tip region. It comprises a slot and is configured to be compressible in a radial direction so as to reduce its outer diameter.

A fuel injector includes an injection-port forming member, a passage forming member, and a positioning member. The passage forming member is in contact with the injection-port forming member. The positioning member that is a partially ring shape spans and is externally fitted to the injection-port forming member and the passage forming member, and executes a positioning between the injection-port forming member and the passage forming member. The injection-port forming member and the passage forming member include continuous flat surfaces that can be connected with each other, respectively. The positioning member includes an opposite flat surface that faces both the continuous flat surfaces in a case where the positioning member is externally fitted to the injection-port forming member and the passage forming member, and a pressing portion that inwardly presses the outer peripheral wall portions such that the continuous flat surfaces are in contact with the opposite flat surface.

A valve is used to meter a fluid. The valve can be fashioned in particular as a fuel injection valve for internal combustion engines. The valve has a housing part that is surrounded on its outer side by an extrusion coating. On the outer side of the housing part there is fashioned at least one recess into which the extrusion coating is at least partly introduced.

A fuel injector with an anti-rotation clip for use in conjunction with a twist lock fuel injector inserted into a receiving fuel cup. The clip includes at least one connector leg which extends at least partially over the electrical connector for the fuel injector and locks the clip against rotation relative to the fuel injector electrical connector. A protrusion on a fuel cup arm engages a notch formed in the fuel cup to lock the arm against rotation relative to the fuel cup.

A fuel injector for an internal combustion engine having an elongated body with a fuel inlet end and a fuel discharge end. The injector body includes an outwardly extending plate attached at a position between its ends and this plate includes at least one radially outwardly extending tab so that the cross-sectional shape of the plate is noncircular. A fuel cup receives the fuel inlet end of the fuel injector and includes a radially inwardly extending ledge at a mid position of the cavity. This ledge includes a through bore complementary in shape to the shape of the plate so that, with the fuel injector and plate aligned at a predetermined angular assembly position, the plate passes through the ledge upon insertion of the fuel injector into the cavity. Thereafter, rotation of the fuel injector and attached plate to a locking position positions the tabs above the ledge thus locking the fuel injector to the fuel cup.

The present disclosure relates in general to injectors and, more specifically, to a fuel injection assembly that may be used in an internal combustion engine. In some embodiments, a fuel injection assembly may include: a fuel injector with a fuel inlet port and a fuel outlet end; and an injector cup with a recess receiving the fuel inlet port of the fuel injector through an opening of the recess. The injector cup comprises a collar extending circumferentially around the opening. The injector cup comprises a tab extending longitudinally beyond the opening in a direction towards the fuel outlet end. The tab projects axially beyond the collar in a longitudinal direction towards the fuel outlet end. The fuel injector comprises a pocket receiving the tab.

A tappet assembly for use in translating force between a camshaft lobe and a fuel pump assembly via reciprocal movement within a tappet cylinder having a guide slot. The tappet assembly includes a bearing assembly having a shaft and a bearing rotatably supported by the shaft for engaging the lobe. An intermediate element has a first aperture, a shelf for engaging the fuel pump assembly, and a pair of arc-shaped bearing surfaces rotatably engaging the shaft when the bearing engages the lobe and the shelf engages the fuel pump assembly. An annular body has a second aperture and at least one stop member abutting the intermediate element to align the first aperture with the second aperture. An anti-rotation clip is disposed so as to extend through the apertures and cooperates with the stop member to substantially prevent rotational and axial movement of the intermediate element with respect to the body.