SYSTEM TO FEED ALTERNATIVE FUELS INTO DIESEL ENGINE COMBUSTION CHAMBER Russian patent published in 2010 - IPC F02M43/04 

FIELD: engines and pumps.

SUBSTANCE: proposed system comprises appliances intended for feeding fuel dope and main fuel communicated with appropriate feed channels made in nozzle case and sprayer, needle with guide, cylindrical and closing tapered surfaces, spring-loaded nozzle case arranged in sprayer cavity, bin formed in the sprayer central part with sprayer cavity communicated with dope feed channels and, via annular channel the sprayer and needle, with mixing chamber arranged at the sprayer lower part nearby needle closing edge and communicated via axial channel and annular groove with the main fuel feed channel, while, via needle, it is communicated with spraying orifices and combustion chamber. Additional annular groove is made at the needle guide surface communicated with the main fuel feed source.

EFFECT: reduced loss of dope along clearance between needle guide surface and sprayer.

6 cl, 8 dwg