A fuel injector (10) for fuel (C) comprises a tubular body (12) provided with a bore (14) and a needle (18) arranged axially (A) slidable in the bore (14), the needle (18) having a cross-section significantly smaller than that of the bore (14). The needle ...

An electro-valve for discharging a common rail while maintaining a minimum pressure, comprising an electro-magnetic coil inside which is arranged a movable plunger, controlling the displacements of a movable axis engaging a ball valve, said movable plunger...

There is provided a fuel injection valve comprising: a movable valve, a magnetic circuit for moving the movable valve, A fuel injection valve comprising: a movable valve; a magnetic circuit for moving the movable valve; a guide 17 having a bore 17b for gui...

An injection valve comprises a valve assembly. The valve assembly (4) includes a central longitudinal axis. The valve body (4) comprises a cavity (8) and a fluid outlet portion (24) abutting the cavity (8). A valve needle (10) is axially moveable in the ca...

There is provided a coupling process whereby two components can be coupled with each other at high positional precision regardless of precision of a single component. A softer component 17 of two components 15, 17 to be coupled with each other is subjected...

The fuel injection valve has a jet body provided with an injection opening controlled by a jet needle (7), which is spring-loaded into the closed position of the injection opening and which is raised into the open position by the pressure of the fuel to be...

The control element has a sealing gap defined between stationary and movable cylindrical guide surfaces (4,8) of a valve needle guide (2) and a valve housing, the movable guide surface provided with a surface structure, e.g. parallel peripheral grooves or ...

A fuel injector (10), including a housing (12), an armature assembly (14), an injector needle (16), a needle seat (18), a needle guide (20), and a orifice disc (22) containing one or more orifice metering pathways (24). The needle guide (20) contains a cen...