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Title: Diesel engine fuel injection system with a rate-of-injection control arrangement

A fuel injection system for a diesel engine is described comprising: (a) a fuel injection pump for delivering a controlled quantity of high pressure fuel cyclically at a timing synchronized with the operation of the engine; (b) a fuel injection nozzle hydraulically connected to the injection pump for receiving high pressure fuel therefrom and injecting the fuel into an engine cylinder; (c) means for controlling a rate of injection of the system in response to operating conditions of the engine; and (d) passage means for providing, during each delivery stroke of the pump plunger, fluid communication between the pumping chamber and the variable volume chamber only for a predetermined initial phase of the delivery stroke. The variable volume chamber is hydraulically isolated from the pumping chamber during subsequent phases of the delivery stroke.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
5106851
Report Number(s):
US 4730585
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 25 Jun 1986
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; DIESEL ENGINES; FUEL INJECTION SYSTEMS; CONTROL SYSTEMS; HYDRAULICS; ACTUATORS; FLOW RATE; OPERATION; PIEZOELECTRICITY; PRESSURIZING; PUMPING; PUMPS; RESPONSE FUNCTIONS; ELECTRICITY; ENGINES; FLUID MECHANICS; FUEL SYSTEMS; FUNCTIONS; HEAT ENGINES; INTERNAL COMBUSTION ENGINES; MECHANICS 330102* -- Internal Combustion Engines-- Diesel