Patent ID: 6186420
Filing Date: 2001-02-13
Classification: F02M

Abstract:
A fuel injection valve for internal combustion engines, comprising a fuel inlet conduit (23), which originates at a connection stub (25) and discharges at a least one injection opening (17), and into which a rodlike fuel filter (35) is inserted, said fuel filter is guided in the inlet conduit on axial ends of the fuel filter and into whose jacket face two groups of longitudinal grooves, axially closed on one end, are machined, a first group of longitudinal grooves (39) originate at an upper end face (41) of the fuel filter (35) remote from the injection opening (17), and a second group (43) originates at a lower fuel filter end face (45) oriented toward the injection opening (17), the size of the flow cross section at the fuel filter (35) and the size of the flow cross section of the fuel inlet conduit (23) in the region (27) downstream of the fuel filter (35) amounts to from 5-10 times a size of a total flow cross section of all the injection openings (17) in the fuel injection valve.