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CD KIA Service Training - Tài liệu đào tạo - WGT (Waste Gate Turbocharger) & VGT (variable geometry turbo)
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CD KIA Service Training - Tài liệu đào tạo - WGT (Waste Gate Turbocharger) & VGT (variable geometry turbo).
Bao gồm file bài giảng + file flash + video minh họa.
Contents
1. WGT (Waste-Gate Turbocharger system)
1.1 General
1.2 Components location
1.3 Inspection
1.4 Causes for the turbocharger troubles
1.5 Examples of turbocharger damage and trouble-shooting.
2. VGT (Variable Geometry Turbocharger system)
2.1 General
2.2 Operation principles2.3. Main advantages
2.4 Caution
2.5 Troubleshooting
1. WGT (Waste-Gate Turbocharger system)
1.1 General
Turbocharger utilizes exhaust gas energy, which is normally wasted, to drive a turbine-powered centrifugal air compressor that converts air velocity into air pressure to increase the flow of air to the engine cylinders.
The air drawn into a naturally-aspirated engine is at less than atmospheric pressure but turbocharger engine packs the air into the cylinder more than atmospheric pressure.
2. VGT (Variable Geometry Turbocharger system)
2.1 General
Boost pressure governing is used to control an exhaust turbocharger with Waste-gate as well as a turbocharger with Variable Geometry Turbine(VGT) or Variable Nozzle Turbine(VNT)
For governing an exhaust turbocharger with Waste gate, the actuator is a bypass valve through which the exhaust flow is directed to or past the turbine as mentioned in turbocharger control.
But for governing a VGT turbocharger, the actuator which is activated by ECM PWM(Pulse With Modulation) control is the variable geometry turbine.
Boost pressure governing in VGT system is subdivided into recognition of driving style, set point value calculation, which is mainly considered by the boost pressure with fuel quantity and shut off condition.
CD KIA Service Training - Tài liệu đào tạo - WGT (Waste Gate Turbocharger) & VGT (variable geometry turbo).
Bao gồm file bài giảng + file flash + video minh họa.
Contents
1. WGT (Waste-Gate Turbocharger system)
1.1 General
1.2 Components location
1.3 Inspection
1.4 Causes for the turbocharger troubles
1.5 Examples of turbocharger damage and trouble-shooting.
2. VGT (Variable Geometry Turbocharger system)
2.1 General
2.2 Operation principles2.3. Main advantages
2.4 Caution
2.5 Troubleshooting
1. WGT (Waste-Gate Turbocharger system)
1.1 General
Turbocharger utilizes exhaust gas energy, which is normally wasted, to drive a turbine-powered centrifugal air compressor that converts air velocity into air pressure to increase the flow of air to the engine cylinders.
The air drawn into a naturally-aspirated engine is at less than atmospheric pressure but turbocharger engine packs the air into the cylinder more than atmospheric pressure.
2. VGT (Variable Geometry Turbocharger system)
2.1 General
Boost pressure governing is used to control an exhaust turbocharger with Waste-gate as well as a turbocharger with Variable Geometry Turbine(VGT) or Variable Nozzle Turbine(VNT)
For governing an exhaust turbocharger with Waste gate, the actuator is a bypass valve through which the exhaust flow is directed to or past the turbine as mentioned in turbocharger control.
But for governing a VGT turbocharger, the actuator which is activated by ECM PWM(Pulse With Modulation) control is the variable geometry turbine.
Boost pressure governing in VGT system is subdivided into recognition of driving style, set point value calculation, which is mainly considered by the boost pressure with fuel quantity and shut off condition.
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