초록 ▼

A pump control means controls a fuel pump so that fuel pressure supplied into the internal combustion engine becomes lower than a predetermined fuel pressure regulated by a fuel pressure regulator when the operating state of the internal combustion engine is within a predetermined operating state. T

A pump control means controls a fuel pump so that fuel pressure supplied into the internal combustion engine becomes lower than a predetermined fuel pressure regulated by a fuel pressure regulator when the operating state of the internal combustion engine is within a predetermined operating state. Thus, the fuel pressure has already been controlled low while the engine state is within the predetermined operating state, so that the fuel leak from the injector during an engine stop is suppressed, thereby reducing an exhaust of deleterious gas when the engine starts again. Further, since the fuel pressure is decreased while the engine works, electric power is not wasted for decreasing the fuel pressure.

대표청구항 ▼

1. A fuel supply amount controller for an internal combustion engine comprising:a fuel pump for supplying a fuel into said internal combustion engine; a check valve for preventing the fuel from flowing back; a fuel pressure regulation means for regulating pressure of the fuel at a predetermined fuel

1. A fuel supply amount controller for an internal combustion engine comprising:a fuel pump for supplying a fuel into said internal combustion engine; a check valve for preventing the fuel from flowing back; a fuel pressure regulation means for regulating pressure of the fuel at a predetermined fuel pressure; a operating state detection means for detecting a operating state of said internal combustion engine; and a pump control means for controlling said fuel pump so that pressure of the fuel supplied into said internal combustion engine becomes lower than the predetermined fuel pressure when said operating state detection means detects the operating state of said internal combustion engine is within a predetermined operating state.