Matching of High-Output Turbocharged Engines for Maximum Torque Backup and Emission Reduction Based on the Use of Variable Geometry Compressors and Turbines

F. J. Wallace; K. Sivakuraman

doi:10.4271/740738

1974-02-01

Matching of High-Output Turbocharged Engines for Maximum Torque Backup and Emission Reduction Based on the Use of Variable Geometry Compressors and Turbines 740738

Turbine performance programs based on relatively simple one-dimensional considerations of great value when investigating the effect of variable nozzle angle or turbocharger matching, and compressor programs based on a combination of one-dimensional flow formulations for rotor and diffuser are discussed. A complete survey has been carried out and the results show that by use of optimized turbine nozzle angle and compressor prewhirl schedules, a fueling schedule appropriate to high torque backup at just over half engine speed can be employed without exceeding the operating limits of the engine with respect to air/fuel ratio (A/F), exhaust temperature, or maximum cylinder pressure.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $37.00 Print $37.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Matching of High-Output Turbocharged Engines for Maximum Torque Backup and Emission Reduction Based on the Use of Variable Geometry Compressors and Turbines 740738

SAE MOBILUS