INJECTOR FOR A COMBUSTION ENGINE

DRIVE March 8, 2017
Source
An injector (30) for a combustion engine comprises a pole piece (3), an armature (5), a valve needle (7) and a guiding element (9) with a guiding portion (11). Respective penetrating openings (13, 19) of the pole piece (3) and the guiding element (9) provide a fluid channel for the fluid along a longitudinal axis (L) of the injector (30). The valve needle (7) is arranged axially moveable along the longitudinal axis (L) to prevent or enable a fluid flow. The guiding element (9) is at least partially arranged and axially moveable inside the penetrating opening (13) of the pole piece (3) and realizes a guidance of the valve needle (7) along the longitudinal axis (L). The guiding portion (11) is configured to be in contact with the pole piece (3) and has a cylindrical shape.

Discussion in the ATmosphere

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