A、be jammed
B、be opened
C、be seated
D、be broken
更多“The needle valve in a fuel valve will （） when the fuel pressure action on the needle valve tapered face exerts a force lower than that of the spring compression.”相关的问题
A、ensure penetration and distribution of the fuel in the combustion chamber B、ensure the needle valve is flushed clean during each injection C、prevent combustion gas blowback into the open needle valve D、prevent reflected pressure waves when the needle valve closes
A、move in an opening direction B、move in a closing direction C、either open or close D、not move at all
A、pilot valve opening B、compensating needle valve C、compensating spring tension D、accumulator spring tension
A、pilot valve oil pressure B、speeder spring force C、compensation needle valve clearance D、centrifugal force on the flyweights
A、Fuel injection timing will change B、Nozzle operation will be unaffected C、Fuel will leak into the drain line D、Fuel will not be delivered
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