| 摘要 |
A valve arrangement for a fuel injector arrangement, in which liquid fuel is drawn from a low pressure drain source and supplied from a pump at high pressure through a main fuel supply passage to an outlet of the injector arrangement. The valve arrangement includes a pressure regulating means which, during the course of an injection, regulates the pressure of fuel being supplied to the outlet. The pressure in the main fuel supply passage is regulated to a preselected pressure, which is intermediate drain pressure and pump supply pressure.
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