| 摘要 |
An injector is described which includes a holder having an inlet, and a passage for supplying fuel from the inlet to a valve needle seating, an adjustable spring abutment plate being located between the inlet and passage. Adjustment of the position of the plate adjusts the compression of a spring arranged to bias a valve needle into engagement with the seating, hence adjusting the fuel pressure necessary to lift the needle from the seating. The plate is provided with an opening whereby the inlet communicates with the passage.
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