| 摘要 |
A hydraulically-actuated fuel injection system includes a manifold holding an amount of pressurized actuation fluid therein. A plurality of hydraulically-actuated fuel injectors each has an injector body that defines an actuation fluid cavity adjacent a piston. A plurality of branch passages each has one end connected to the manifold and a second end connected to the actuation fluid cavity of a different one of the plurality of hydraulically-actuated fuel injectors. A flow orifice valve member is positioned in each of the branch passages and is moveable between a first position that presents a relatively small flow area through the branch passage when pressure in the manifold is relatively low, and a second position that presents a relatively large flow area when pressure in the manifold is relatively high.
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