Turbochargers have become very popular on passenger cars since the first mass-produced turbocharged passenger cars were put on market in Japan in 1979. Turbo lag is one of the most serious problem since the first mass-production started.Several new technologies such as a variable geometry turbocharger, ceramic turbocharger, etc. have been introduced to improve acceleration performance. A variable geometry turbocharger changes the area of gas flow passage and increases exhaust gas speed at low engine speed. A ceramic turbocharger reduces inertia moment of a turbine wheel and shaft.Turbocharger mechanical efficiency has equal importance as compressor efficiency and turbine efficiency.This paper describes the test results of ball bearing turbochargers developed at our company.
Development of High Efficiency Ball-Bearing Turbocharger
Sae Technical Papers
SAE International Congress and Exposition ; 1987
1987-02-01
Conference paper
English
Development of High Efficiency Ball-Bearing Turbocharger
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