| 摘要 |
The valve has a valve needle (3) and a valve closing body (4), one of which has a swirl channel (35) with variable flow profile along the direction of flow of the fuel. The throttling length of the channel is axially shortened by a movement of the valve needle when the fuel injection valve is actuated. The channel is closed radially outwards by a guide plate (34), is curved in axial direction, and has an asymmetrical profile. It is formed by computer-aided Laser processing.
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