Patent ID: 8616183

Claim:
A fuel injection system for an internal combustion engine, comprising: a fuel distributor, a high pressure accumulator embodied in an interior of the fuel distributor and comprising transverse bores opening into the interior, said transverse bores being connected to pressure lines for a fuel feed and discharge by way of connecting pieces, with at least one element having permanent magnet properties being arranged in the interior of the fuel distributor, a high pressure sensor arranged on the front end of the fuel distributor, said high pressure sensor being connected to the interior by way of a measuring bore, and wherein the element with permanent magnet properties is embodied as a permanent magnet ring, which is arranged on the front end of the interior assigned to the high pressure sensor, wherein the permanent magnet ring is arranged in an annular groove or recess such that a single magnetic surface of the permanent magnet ring is openly exposed to the interior of the fuel distributor, the openly exposed magnetic surface defining a plane that extends generally perpendicular to a direction of fuel flow through the measuring bore and being configured to attract and collect magnetic particles present in the interior of the of the fuel distributor.