Perforated disk forming method for fuel injection valve of mixture-compressing, spark-ignition internal combustion engine, involves forming nozzle area with injection opening using pressurized fluid or compressible, elastic pressure body

摘要

The method involves providing a perforated disk (23) with an injection opening (30), and forming a nozzle area (28) with the opening using a pressurized fluid or a compressible, elastic pressure body, where the fluid has a maximum pressure of 300 bars. The perforated disk is made of micro-galvanic metallic deposition, and the pressure body is a cushion-like pad, which is filled with the fluid and/or is made of elastomer. The perforated disk is separated into two parts with two structural planes, where one plane has the opening and the other plane form a recess without galvanic material.