Electronic pressure regulator

Details Electronic pressure regulator Electronic pressure regulator

2011-08-30

2011-08-30

Vo, Hieu T (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

Reexamination Certificate

active

08006668

ABSTRACT:
The invention includes a very fast voice coil actuator, in the range of 2-5 millisecond full stroke response with high force, a circuit board located in the enclosure, a pressure sensor sensing pressure internal to the system which in the preferred embodiment is located in the actuator cap assembly but could be located in other locations, a diaphragm, a link plate, a mating ring, and a mechanical pressure regulator. An electronic pressure regulator receives pressure commands from the engine control module in a manner similar to receiving pulse width from an engine control module to an injector and calculates the required new pressure command. A novel feature of the present invention includes the Delta P control and the control of the regulator based on direct feedback of pressure.

REFERENCES:
patent: 5808671 (1998-09-01), Maycock et al.
patent: 5905713 (1999-05-01), Anderson et al.
patent: 6041762 (2000-03-01), Sirosh et al.
patent: 6131552 (2000-10-01), Paielli et al.
patent: 6701905 (2004-03-01), Gaskins

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