Injection nozzle for a dual-fuel engine, dual-fuel engine and method for operating the same

US12085049B2 · kind B2 · utility

Assignee

• MAN Energy Solutions SE · DE

Inventors

• Armin Weber · Mindelheim, DE
• Maximilian Indrich · Kissing, DE

Key dates

• Filing date: Sep 19, 2023
• Grant date: Sep 10, 2024
• Expiry date: Sep 19, 2043

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/30
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An injection nozzle that for a first fuel in a first mode and in a second mode ignition fluid for a second fuel is introduced. The injection nozzle includes an injection nozzle body with first and second injection orifices and a displaceable injection nozzle needle in the injection nozzle body. The first injection orifices have smaller injection orifice cross-sections than the second injection orifices and are arranged at a defined distance. In a first displacement direction for closing the orifices the first injection orifices are located in front of the second injection orifices and seen in a second displacement direction of the injection nozzle needle for the opening or unblocking of the orifices, the first injection orifices are located behind the second injection orifices.