MULTIFUEL ENGINE NOZZLE Russian patent published in 2015 - IPC F02M43/04 

FIELD: engines and pumps.

SUBSTANCE: claimed nozzle comprises body and head with channels, hollow sprayer with locking cone, spraying orifices, feed channels and spring-loaded locking needle. Said sprayer has distributing chamber connected with the main fuel feed channel and, via circular channel, with mixing chamber. Axial channel is made inside locking needle connected with pilot fuel feed channels via circular chamber. Besides, there are extra radial channels with one end extending into mixing chamber and opposite end into axial chamber. One check valve is fitted in pilot fuel feed channel line. The latter comprises extra cylindrical bore made in said sprayer to make the control chamber between distributing and circular chambers to communicate with the nozzle head pilot fuel feed channel. Grooves are made between the body end surfaces and nozzle head. In nozzle operation it is possible to decreased fuel volume concentrated in nozzle body and injector to increase the maximum injection pressure at the main fuel feed cycle.

EFFECT: correction of mix composition, better fuel mix spraying.

2 cl, 6 dwg