| 摘要 |
FIELD: mechanical engineering; internal combustion engines. ^ SUBSTANCE: invention relates to fuel injection devices of internal combustion engines. Proposed valve nozzle, mainly valve nozzle for fuel injection system of internal combustion engines has fuel intake branch pipe piezoelectric or magnetostriction drive hermetically isolated from contact with fuel and shutoff element set into operation by drive through needle of nozzle and interacting with contact surface of needle seat to form tight ft section. Seal is provided with sealing plate placed between fuel intake pipe and drive, with at least one fuel channel to pass fuel from intake branch pipe to said tight fit section. ^ EFFECT: provision of low cost low wear valve nozzle of compact design without friction parts. ^ 11 cl, 6 dwg |
