| 摘要 |
A fuel injection system includes a fuel injector that defines an actuation fluid cavity, a fuel inlet and a nozzle outlet. A source of relatively high pressure actuation fluid is connected to the actuation fluid cavity via an actuation fluid supply passage. A fuel fluid supply passage extends between the fuel inlet and a source of relatively low pressure fuel fluid. A mechanically actuated valve is attached to the actuation fluid supply passage, and is moveable between an open position in which the actuation fluid supply passage is open and a closed position in which the actuation fluid supply passage is closed.
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