BRENNSTOFF-EINSPRITZANLAGE FUER EINE BRENNKRAFTMASCHINE

A fuel injection system for internal combustion engines has a rotary valve device driven in synchronism with a cam shaft of the engine to distribute high-pressure fuel to unit injectors of the engine. The rotary valve device comprises a rotary spool having fuel supply port and a plurality of fuel me...

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Bibliographic Details
Main Author KIZAWA,HIROFUMI
Format Patent
LanguageGerman
Published 09.05.1985
Edition3
Subjects
BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:A fuel injection system for internal combustion engines has a rotary valve device driven in synchronism with a cam shaft of the engine to distribute high-pressure fuel to unit injectors of the engine. The rotary valve device comprises a rotary spool having fuel supply port and a plurality of fuel metering grooves formed on the circumference of the spool. The fuel metering grooves are respectively provided with check valves. The rotary spool further comprises a pressure relief port for draining part of fuel accumulated in each of the unit injectors and a fuel supply pipe connected between the rotary valve device and the unit injector. The pressure relief port is formed on the circumference of the spool and between the fuel supply port and the fuel metering grooves.
Bibliography:Application Number: DE19843438965