INTERNAL COMBUSTION ENGINE ELECTRICALLY CONTROLLED NOZZLE Russian patent published in 2003 - IPC

FIELD: mechanical engineering; internal combustion engines. SUBSTANCE: proposed electrically controlled nozzle for internal combustion engine contains body with fuel feed elements, actuating member made in form of piezoceramic stem consisting of separate disks, and valve mechanically coupled with actuating member. Stem forming disks are enclosed in holder rigidly coupled with body and made of dielectric material with low linear thermal expansion coefficient. Contact plates fitted between disks are made integral with current conductors connecting like poles of all disks with control voltage source. Invention provides simplified design of nozzle, reduces labour input in manufacture of nozzle, improves reliability and characteristics of injection process and possibility of use of nozzle in different fuel systems of internal combustion engines, diesel engines included. EFFECT: enlarged operating capabilities. 2 cl, 5 dwg