A decoupling element for a fuel-injection device has a low-noise and pivotable construction. The fuel-injection device includes at least a fuel injector and a receiving bore in a cylinder head for the fuel injector as well as the decoupling element between a valve housing of the fuel injector and a wall of the receiving bore. The decoupling element is in the form of a ring, in particular a closed ring, which has a lower end face that sits on a shoulder of the receiving bore, and which has an upper end face that rises conically from radially outside toward radially inside and is in intimate contact with a spherically curved shoulder area of the valve housing of the fuel injector. The fuel-injection device is particularly suitable for the direct injection of fuel into a combustion chamber of a mixture-compressing combustion engine having externally supplied ignition.

An outboard motor includes a cylinder block, a cylinder head unit, a delivery pipe, a plurality of injectors, a fuel pump, and a fuel pipe. The cylinder block includes a plurality of cylinders. The cylinder head unit is connected to the cylinder block. The delivery pipe is attached to the cylinder head unit. The injectors are attached to the delivery pipe. The fuel pump is attached to the cylinder head unit. The fuel pipe is attached to the delivery pipe and the fuel pump. A first attachment direction of attaching the fuel pump to the cylinder head unit is parallel or substantially parallel to a second attachment direction of attaching the fuel pipe to the delivery pipe.

The present disclosure relates to fuel delivery systems for a motor vehicle. Some embodiments include a housing with a wall and a connector opening, a high-pressure connector including a wall circumferentially bordering a recess extending along a longitudinal central axis of the high-pressure connector, a radial indentation formed at the inner side in the wall in the housing connector region adjacent to the transition region, and an axial indentation formed at the outer side in the wall in the transition region adjacent to the intermediate region. The high-pressure connector may have a housing connector region, an intermediate region, and a transition region. An outer diameter of the high-pressure connector is larger in the housing connector region than in the intermediate region and the inner diameter is larger in the housing connector region than in the intermediate region. The wall of the housing delimits a recess around the connector opening. The housing connector region includes a protruding region suitable for making contact with the housing when said protruding region partially or fully enters the recess.

Provided is a fuel rail that can achieve a reliable seal between a rail main unit and a cup, involving a short welding distance or a reduced amount of a brazing filler metal. In the fuel rail, a rail main unit 2 has a central hole and a rail main unit-side communication hole 10 that provides communication between the central hole and an outside of the rail main unit 2. An injector receiving member 5 has an injector insertion hole 7 into which an injector is inserted. The injector receiving member 5 is mounted in the rail main unit 2 such that the rail main unit-side communication hole 10 and the injector insertion hole 7 communicate with each other. The injector receiving member 5 has an injector receiving member-side communication hole 9 that provides communication between the rail main unit-side communication hole 10 and the injector insertion hole 7. A metal fusion zone 12 is formed, by way of an inside of the injector receiving member 5, in a bond between the rail main unit 2 and the injector receiving member 5, to thereby seal the bond.

A fuel system includes a fuel injector having an inlet conduit extending along an axis, a nozzle opening, and a valve needle which is moveable to selectively permit and prevent flow of fuel from the inlet conduit through the nozzle opening. The inlet conduit has a seal support flange which provides a seal support shoulder which is traverse to the axis. A fuel rail assembly includes a fuel rail having a main fuel passage which receives fuel from a fuel source and a socket having a socket bore extending thereinto from a socket open end such that the socket bore is in fluid communication with the main fuel passage and such that the inlet conduit is received within the socket. A sealing ring which is metallic circumferentially surrounds the inlet conduit within the socket bore such that the sealing ring is compressed between the socket bore and the inlet conduit.

A fuel injector body includes a body that includes an at least partially annular configuration defining a longitudinal axis, a circumferential direction, and a radial direction. A first counterbore and a first cavity extend from the first end toward the second end, and an external interface portion including a sealing surface is disposed axially between the first end and a shoulder. The first cavity defines a bottom surface and a peripheral surface, and the body also includes a leak passage extending from the bottom surface that is in communication with the first cavity.

A distributor apparatus of a common rail system for an internal combustion engine. The distributor apparatus is designed with at least one distributor device having a high-pressure line for fuel and a plurality of feed lines branching off from the high-pressure line within the distributor device. Each feed line leads to an individual accumulator and an injector. The feed line is associated with a restriction device and a discharge bore, which is designed to cooperate with a pressure-measuring device and which is arranged downstream of the restriction device, such that the restriction device is arranged in the feed line and the discharge bore, arranged in the distributor device, is connected to the feed line downstream of the restriction device.

A monolithic fuel rail structure is configured to receive and support a fuel injector, and includes a log, an injector cup that protrudes integrally from an outer surface of the log, and a fuel passage. An inner surface of the log defines a main fuel channel, and the injector cup includes a bore that opens at one end of the injector cup. An inlet end of the fuel injector is received in the bore. The fuel passage provides fluid communication between the bore and the main fuel channel, and the fuel passage corresponds to a portion of a hole that extends through the injector cup on each of opposed sides of the injector cup.

A fuel injector includes an upper housing having an outer peripheral surface; a nozzle tip with a nozzle opening which serves as an outlet to fuel from the fuel injector; and a valve needle which is selectively moveable between a first position which prevents fuel flow and a second position which permits fuel flow. The fuel injector also includes an inlet sleeve which includes an inner peripheral surface which circumferentially surrounds, and mates with, the outer peripheral surface of the upper housing. The inlet sleeve is fixed to the upper housing, thereby preventing relative movement between the inlet sleeve and the upper housing. The inlet sleeve includes external threads which are configured to mate with complementary internal threads of a nut which secures a fuel supply conduit to the upper housing.

An improved quick connector with code verification is provided. The quick connector includes a connector body, a connector sleeve, and a sliding lock latch. The connector body includes a verification indicia on its outer surface, and the connector sleeve is movable over the connector body and includes an indicator window that aligns with the verification indicia. The sliding lock latch is moveable from an unlatched position to a latched position through transverse openings in the connector sleeve and the connector body. The sliding lock latch includes first and second wing elements to prevent clockwise and counter-clockwise rotation of the connector sleeve relative to the connector body. The sliding lock latch also includes a locking tab on its outer surface to prevent retraction of the connector sleeve from the connector body.