This paper describes a new turbocharged diesel engine which has been developed to meet market requirements for better fuel economy for heavy-duty trucks in Japan. Besides the newly developed turbocharging system, the new engine features Isuzu's unique square combustion chamber, 4-valve design and roller tappets. Improvement of fuel economy and torque characteristics in the low and medium speed range was made possible mainly by adoption of a wastegate valve for boost control, computer designed exhaust system and matching of turbocharger characteristics with the square combustion chamber system and with Bosch type fuel injection system.
Isuzu's New 12.0L Turbocharged Diesel with Wastegate Boost Control for Fuel Economy
Sae Technical Papers
SAE International Congress and Exposition ; 1982
1982-02-01
Conference paper
English
Isuzus New 12,0 l Turbocharged Diesel with Wastegate Boost Control for Fuel Economy
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