1. Control de emisiones mediante sistemas de inyección y de admisión
Emisiones Vehiculares
23-Septiembre-2005

2. Sistemas de Inyección Gasolina
Inyección Directa
Altas presiones
Inyección Indirecta
Bajas presiones
Continua
Intermitente

3. Sistemas de Inyección Diesel

4. Sistema de Inyección
Main functions of the Diesel Fuel Injection System
Injection Timing
Control
Injection Quantity
Control
Proper
Atomization
& Penetration
Additional Functions
Pilot Injection
Rate Shaping
Post Injection

5. Sistema de Inyección Types of Diesel Fuel Injection Systems
Pump-Line-Nozzle (P-L-N)
Unit Pump (UP)
Unit Injector (UI)
Common Rail System (CR)
HDV & MDV: CR in the near future

6. Sistemas de Inyección Diesel

7. Sistema de Inyección Motivation for using electronically-controlled
Injection Systems in diesel engines
Emissions regulations
Improved engine response
Improve fuel economy while complying with emission regulations
Customized engines for various applications
Value added features
Lower cost to cumbersome mechanical add-ons
Full-authority parameter control and flexible implementation of control strategies
Flexible injection timing
Flexible injected quantity metering
Reduced shot-to-shot variability
Reduced cylinder-to-cylinder variability
Smoke control strategies

8. Sistema de Inyección

11. Sistema de admisión de aire
Methods of air charging
Supercharging
Turbocharging
Wave charging
Superchargers drives
Mechanically
driven
Electrically
driven
Hydraulically
driven
Turbocharger types
Fixed
geometry
Fixed with
Waste-gate
Variable
geometry
Fixed
With AGR

13. Superchargers drives
Mechanically
driven
Electrically
driven
Hydraulically
driven

17. Turbocharger types
Fixed
geometry
Fixed with
Waste-gate
Variable
geometry
Fixed
With AGR