| 摘要 |
A fuel system for an engine is disclosed. The fuel system has a first source of fuel at a first pressure, and a second source of fuel at a second pressure. The fuel system also has a fuel injector configured to receive fuel from the first and second sources and inject fuel into a combustion chamber of the engine. The fuel system further has a valve operable to selectively direct fuel from the first and second sources to the fuel injector. The fuel system additionally has a controller in communication with the valve and being configured to affect operation of the valve and a resulting fuel pressure based on a desired injection pressure.
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