Vehicular diesel engine highland second-stage adjustable pressurization system and control method thereof
A diesel engine and high-pressure stage technology, which is applied to the plateau two-stage adjustable supercharging system and control field of a vehicle diesel engine, can solve the problems of reduced air quality, low atmospheric pressure, and reduced plateau performance of the diesel engine.
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[0016] The present invention will be further described below in conjunction with the accompanying drawings.
[0017] Such as figure 1 As shown, the system includes a high-pressure supercharger, a low-pressure supercharger and an electronic control unit; an intercooler is arranged between the high-pressure compressor and the low-pressure compressor, and an intercooler is arranged behind the high-pressure compressor; The high-pressure stage compressor is connected to the high-pressure stage supercharger, the low-pressure stage compressor is connected to the low-pressure stage supercharger, and the high-pressure stage supercharger is connected in series with the low-pressure stage supercharger. On the turbine side of the high-pressure stage supercharger is a containment high-pressure regulating valve. A low-pressure regulating valve is set on the turbine side of the low-pressure supercharger; a compressor bypass valve is set on the compressor side of the low-pressure supercharger...
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