ROTARY VALVE ASSEMBLY FOR A FUEL INJECTION SYSTEM

A rotary valve assembly for fuel injectors which can effectively prevent highly pressurized drain waves from propagating into an extended metering groove. The assembly comprises a cylindrical housing having a plurality of fuel ports formed in the cylindrical wall and a metering port formed in the en...

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Bibliographic Details
Main Authors HIKOZABURO HIRAKI, YU SATOMI
Format Patent
LanguageEnglish
Published 30.10.1985
Edition4
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 rotary valve assembly for fuel injectors which can effectively prevent highly pressurized drain waves from propagating into an extended metering groove. The assembly comprises a cylindrical housing having a plurality of fuel ports formed in the cylindrical wall and a metering port formed in the end wall, each of the fuel ports being connected with respective fuel injectors, and a rotary spool rotatably mounted within the housing defining a metering chamber between one end face thereof and the end wall of the housing. The rotary spool has formed therein a fuel supply passage connected at one end with a fuel supply source and at the other end selectively connectible with either one of the fuel ports. The rotary spool further has formed therein an extended metering groove and a drain groove spaced circumferencially from the metering groove.
Bibliography:Application Number: GB19830017003