Disclosed herein is an injector fixing structure of a fuel rail. The injector fixing structure for a fuel rail module is configured such that an injector cup that includes a slot formed at a side thereof and an injector that includes an anti-rotation pin inserted into the slot are coupled to each other by a clip. The injector fixing structure also includes a lock formed integrally with the anti-rotation pin, and a fixing member coupled to the slot and allowing the lock to be secured when the anti-rotation pin is inserted into the slot such that the anti-rotation pin is prevented from being separated from the slot. The present invention may prevent separation of the injector from the fuel rail during transportation of the fuel rail module, thereby improving assemblability of the fuel rail module in engine assembly and increasing process efficiency.

A system, which is used especially as a fuel injection system for the high-pressure injection in internal combustion engines, includes a fuel distributor and a plurality of fuel injectors. Each fuel injector is situated on a cup of the fuel distributor. At least one of the fuel injectors is fastened to the associated cup by a holding element. The holding element has an at least essentially straight first leg and an at least essentially straight second leg. The cup includes at least one recess, which extends through a wall of the cup. The first leg and the second leg are guided through the at least one recess. Furthermore, the connection sleeve of the fuel injector has a collar, which is braced on the first leg of the holding element and on the second leg of the holding element in order to secure the fuel injector on the cup.

Various embodiments may include a long injector for fuel injection comprising: a base portion and an extension portion electrically connected to the base portion. An end of the extension portion may include an electrically conductive terminal with contact clips. The contact clips are spaced at a distance from each other or from a side wall of the electrically conductive terminal. An end of the base portion comprises electrical contacts positioned so each of the electrical contacts can slide into a contact clip of the electrically conductive terminal. The electrically conductive terminal includes a latch mechanism. An electrical connection between the base portion and the extension portion is created when the electrical contacts are inserted into the contact clip and held by the latch mechanism. The long injector further comprises an overmolded body encapsulating the electrical connection between the base portion and the extension portion.

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 include an injector cup comprising: a cup body extending along a central longitudinal axis from a first axial end to a second axial end; a ring adjoining a border of the second axial end and radially extending beyond said border; wherein a base surface of the ring faces away from the first axial end and defines a reference plane extending orthogonally to the longitudinal axis; the ring comprises two wings, wherein each wing includes a free end section extending bent away from the reference plane at a side of the reference plane facing towards the cup body, wherein the two wings are spaced from each other; and a through opening in the ring disposed between the two wings.

A kit for protecting at least one seal installed in a cavity of a transfer fuel pump, the cavity comprising an opening for receiving a shaft inside the cavity. The kit comprises a first tool and a second tool, the first tool comprising a first handle and a first protective portion, the second tool comprising a second handle and a second protective portion, and the first and the second protective portions being shaped to be inserted in the cavity of the transfer fuel pump while receiving the shaft inside said cavity.

A fuel injection assembly for an internal combustion engine has a fuel injector, an injector cup and a holding element for securing the fuel injector in the injector cup, wherein the fuel injector has an annular groove defined in part by an annular flange having a profiled peripheral surface engageable by a profiled surface on the arms of a holding element when the fuel injector is secured to the injector cup, to provide a line or point contact between the fuel injector and the holding element.

Various embodiments include a holding component for securing a fuel injector to an injector cup comprising: a U-shaped holding element with two parallel supporting arms for engaging opposite sides of an annular groove in the fuel injector to secure the fuel injector in the injector cup; a base part; two resilient arms extending from the base part for engaging the outer surface of the injector cup; and a depending leg engageable in a corresponding receiving part on the fuel injector to accurately position the fuel injector angularly relative to the injector cup.

The invention relates to a high-pressure fuel pump (1), in particular of a common rail injection system of an internal combustion engine, having a pump cylinder head (3), having an intake valve (6) arranged in the pump cylinder head (3) in the direction of a pump cylinder axis, and a high-pressure fuel outlet (5) arranged laterally on the pump cylinder head (3), wherein a protective cap (10, 10a) at least partly covering the high-pressure fuel pump (1) is provided. According to the invention, a high-pressure fuel pump (1) having a protective cap (10, 10a) is provided, in which the protective cap (10, 10a) can be mounted without difficulty on an assembled high-pressure fuel pump (1). This is achieved in that a plug (8) having a lateral lead connection (9) is placed on the electrically operated intake valve (6), and the protective cap (1) is formed in two pieces and has two protective cap parts (11a,11b) that can be fitted to each other, or else in that a plug (8) having a lateral lead connection (9) is placed on the electrically operated intake valve (6), and the protective cap (10a) is formed annularly and has a free clearance slot (19) interrupting the ring.

A mounting system for fuel injection systems connects a fuel injection valve to a fluid-conveying component and includes a connector piece of the metering valve being inserted at least partly into a receiving space of a connector body of the component; a support part disposed on the connector piece; a decoupling element; a dished disk inserted into a receiving space of the connector body and immobilized along a longitudinal axis of the receiving space relative to the connector body. The support part has a spherical support surface that faces toward a dished surface of the dished disk. The decoupling element is disposed between the spherical support surface of the support part and the dished disk. The connector piece is mounted on the connector body via the support part, decoupling element, and dished disk.