Fuel injection apparatus and associated method

US4842197A · kind A · utility

Assignee

• MTU Motoren-und Turbinen-Union · DE

Inventors

• Burkhard Simon · Weingarten, DE
• Franz Joos · Waldshut-Tiengen, DE

Key dates

• Filing date: Dec 10, 1987
• Grant date: Jun 27, 1989
• Expiry date: Dec 10, 2007

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23D2900/11101
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A fuel injection device having three concentric streams of air for the atomization of fuel sprayed onto a sleeve by an injector facing into the sleeve. The inner and outer streams of air are imparted with swirl in opposite direction, while the central stream of air is free of swirl. The two inner streams of air atomize the fuel as a result of shear forces, while the outer stream of air forms a stable recirculation region in a combustion chamber into which the fuel injector device extends.