Injector
AssigneeLucas Industries public limited company
InventorsPaul Turner, Dean Hall
Life of this patent
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Abstract
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.
Claims9
An injector comprising a housing defining a seating, a valve element engageable with the seating, a resilient member arranged to bias the valve element into engagement with the seating, an abutment adjustable relative to the housing, the resilient member being engaged between the valve element and the abutment whereby adjustment of the position of the abutment with respect to the housing adjusts the compression of the resilient member, a passage provided in the housing for carrying fuel towards the seating, an inlet provided in the housing for connection to a fuel source, the abutment being located between the inlet and the passage, wherein the abutment includes a movable element provided with an opening whereby communication is permitted between the inlet and the passage.
Dependencies are inferred from the claim text.