Fuel pressure control device for direct fuel injection engine, has idle running stop system which controls automatic stop and automatic restart of direct injection engine

摘要

The fuel pressure control device has an idle running stop system which controls an automatic stop and an automatic restart of a direct injection engine. A pressure reduction mechanism is provided to reduce a fuel pressure in a high pressure fuel system. The high pressure fuel system supplies high pressure fuel of a high-pressure pump (14) to a fuel injector (34). An independent claim is included for a high-pressure pump control device for an internal combustion engine.