Fuel injection system including a flow control valve...

Internal-combustion engines – Charge forming device – Fuel injection system

Reexamination Certificate

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Details

C123S456000

Reexamination Certificate

active

11242173

ABSTRACT:
Often there is a limited fuel injector spatial envelope above and within a cylinder head for a fuel injector. In order to fit a fuel injector with a direct control needle valve and a capability of injecting fuel at a rail pressure and an intensified pressure into the limited fuel injector spatial envelope, the present disclosure includes a fuel injection system in which a pressure intensifier and nozzle outlets of a fuel injector are fluidly connected to a source of fuel via an intensifier line and an injector line, respectively. The flow of fuel to the pressure intensifier is controlled via a valve attached to the source of fuel.

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Bernd Mahr, Manfred Dürnholz, Wilhelm Polach, and Hermann Grieshaber, Robert Bosch GmbH, Heavy Duty Diesel Engines—The Potential of Injection Rate Shaping for Optimizing Emissions and Fuel Consumption Stuttgart, Germany at the 21st International Engine Symposium, May 4-5, 2000, Vienna, Austria.

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