Injection device for a diesel engine

Abstract

Abstract In an injection device for a diesel engine in which the diesel fuel is fed by an injection pump (1) via a balanced pressure valve (7) and via a first line to a chamber (14) in front of the nozzle needle seat (12) of the injection nozzle, and before the injection pump (1) commences delivery an additional liquid is fed in in predetermined quantities via a second line at excess pressure to the chamber (14) in front of the nozzle needle seat (12) via a non-return valve (21) opening in the direction of this chamber, whereupon the additional liquid and the diesel fuel are injected together under the pressure of the injection pump (1), the second line is a hammer pipe (20) or is connected to a hammer pipe (20), which is connected via a non-return valve (21) opening in the direction of the hammer pipe (20) to a pressure source (16) for the additional liquid, and opens out between the non-return valve (23) opening in the direction of the chamber (14) in front of the nozzle needle seat (12) and a controllable shut-off valve (24) which in the open position connects the hammer pipe (20) to a return (26) and on closing causes an impact pressure due to conversion of the kinetic energy of the flowing additional liquid into potential energy. <IMAGE>

Inventors

• 👤 Jaroslaw Dipl.-Ing. Hlousek

Bibliographic Details