Patent ID: 6659084
Filing Date: 2003-12-09
Classification: F02M

Abstract:
A fuel injection apparatus for an internal combustion engine having: a pump part (P): a nozzle part (D) with an injection nozzle (14) protruding into the combustion chamber of the engine, which nozzle is in communication with a valve chamber (6.1); and a valve part (V) in which a control part (6) closes and opens inlet bores (5, 8) for fuel that is at high pressure, and the control part (6) is actuatable by means of a hydraulic-mechanical booster (18, 19, 20, 21), the improvement wherein the pump part (P), the valve part (V) and the nozzle part (D) of the fuel injection apparatus (1) are disposed in a vertical arrangement, hydraulically in line with one another in terms of the fuel flow, wherein the ratio of the lengths l1:l2 of the inlet bores (5, 8) relative to one another is between 1:4 and 1:6.