Electric-assistance variable nozzle turbocharging system and control method thereof
A turbocharger system and turbocharger technology, which is applied to combustion engines, machines/engines, internal combustion piston engines, etc., can solve problems such as frequent changes in load variation range, poor low-speed power performance of supercharged diesel engines, etc., and achieve relief Insufficient air intake, improved transient characteristics, and improved transient response characteristics
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[0034] Diesel engine cylinder 7 is directly connected between intake branch pipe 6 and exhaust branch pipe 8 of the present invention, and intake pipe 5 is connected on the intake branch pipe 6, and exhaust pipe 9 is connected on the exhaust branch pipe 8, and on the intake pipe 5, The intercooler 4 and the electrically assisted variable nozzle turbocharger 1 are installed at the inlet of the intake pipe 5 and the outlet of the exhaust pipe 9. The electrically assisted variable nozzle turbocharger 1 is composed of an auxiliary compressor 1a, a turbine 1b, a variable nozzle mechanism 1c, an auxiliary high-speed motor 2, and a turbocharger rotating shaft 3, the compressor 1a is installed at the inlet of the intake pipe 5, the turbine 1b is installed at the outlet of the exhaust pipe 9, and the turbine 1b is installed The variable nozzle mechanism 1c, the compressor 1a and the turbine 1b are coaxially connected through the turbocharger rotating shaft 3, the auxiliary high-speed mo...
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