Meeting the Customer's Needs - Defining the Next Generation Electronically Controlled Unit Injector Concept for Heavy Duty Diesel Engines

Paper #:
  • 961285

Published:
  • 1996-04-01
Citation:
Gibson, D., Shinogle, R., and Moncelle, M., "Meeting the Customer's Needs - Defining the Next Generation Electronically Controlled Unit Injector Concept for Heavy Duty Diesel Engines," SAE Technical Paper 961285, 1996, https://doi.org/10.4271/961285.
Pages:
11
Abstract:
Diesel engine manufacturers have been asking for new, innovative, flexible fuel injection systems in order to meet future diesel engine emission requirements throughout the world and improve engine performance.Engineers at Caterpillar have listened to these requests and developed a fuel system concept to meet their needs. This new fuel system is called the Next Generation Electronic Unit Injector (NGEUI).The new concept is adaptable to mechanically actuated electronic unit injector, hydraulic electronic unit injector, electronic unit pump, and pump/line/nozzle systems. Features of the new fuel system are listed below: 1.Fully controllable injection pressure independent of engine speed and load 2.Injection pressure capability to 207 MPa (30,000 psi) 3.Reduced drive train torsional excitation and improved hydraulic efficiency 4.Adaptable to all engine configurations This paper describes the process employed in the creation of the NGEUI Fuel Injection System concept, its operating features, and its performance advantages.
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