Fuel pressure control apparatus of an internal combustion...

Details Fuel pressure control apparatus of an internal combustion... Fuel pressure control apparatus of an internal combustion...

2005-03-22

2005-03-22

Mohanty, Bibhu (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S445000

Reexamination Certificate

active

06868826

ABSTRACT:
A fuel pressure control apparatus is provided with a fuel pump for supplying the high-pressure fuel to an accumulator, a fuel pressure sensor for detecting a fuel pressure in the accumulator, an idling switch for detecting, on the basis of an accelerator manipulation, whether the internal combustion engine is in an idling state, an ECU for controlling an amount of fuel that is supplied from the fuel pump to the accumulator so that the fuel pressure in the accumulator that is detected by the fuel pressure sensor coincides with a target fuel pressure that is set in accordance with a rotation speed and a load of the internal combustion engine, and a target fuel pressure switching unit for restricting the target fuel pressure to a prescribed fuel pressure or lower while the idling switch detects that the internal combustion engine is in an idling state.

REFERENCES:
patent: 3961612 (1976-06-01), Okamoto et al.
patent: 61-096162 (1986-05-01), None
patent: 11-324757 (1999-11-01), None

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