Single device for controlling fuel electro-injectors and...

Details Single device for controlling fuel electro-injectors and... Single device for controlling fuel electro-injectors and...

2006-10-10

2006-10-10

Solis, Erick R (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S090110, C123S478000

Reexamination Certificate

active

07117852

ABSTRACT:
In a single device for controlling electro-injectors and electrovalves in an internal-combustion engine, a first control circuit for each electro-injector, a second control circuit for each electrovalve, and a timing circuit, supplying timing signals to the first and second control circuits. In the second control circuit, switches selectively connect the respective electrovalve to a first voltage source in certain given operating conditions, and to a boosted voltage source, constituted by a capacitor for accumulation of energy, in certain other given operating conditions. In this way, part of the electrical energy accumulated in the electrovalve during its normal actuation is transferred to the capacitor, thus causing the latter to be recharged.

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