Turbocharged engines exhibit poor transient response, especially when accelerating from low speeds at low loads, due to the inertia of the turbocharger rotating mechanism.In looking for ways to overcome this disadvantage, we investigated the possibilities of variable geometry turbochargers, and evaluated the performance characteristics of several types. We decided on the single flap type, and established a control method using compressor outlet pressure to control the flap and waste gate valves. Based on the results of experiments with this method, we developed an electronic pressure feedback system which greatly improves transient engine response and, at the same time, engine performance over a wide range of engine speeds.
Development of Nissan Variable Geometry JET Turbocharger
Sae Technical Papers
SAE International Congress and Exposition ; 1986
1986-02-01
Conference paper
English
Valves , Flaps , Pressure , Compressors , Turbochargers
Development of Nissan variable geometry JET turbocharger
Automotive engineering | 1986
|The development of Nissan`s variable geometric jet turbo turbocharger system
Automotive engineering | 1985
|Development of Nissan High Response Ceramic Turbocharger Rotor
Automotive engineering | 1986
|Development of Nissan High Response Ceramic Turbocharger Rotor
SAE Technical Papers | 1986
|A case of variable geometry turbocharger development
Automotive engineering | 1986
|