What is the working principle of a fuel exhaust turbocharger?
1 Answers
The working principle of a fuel exhaust turbocharger is to direct the exhaust gas from the engine into the turbine, using the energy of the exhaust gas to drive the turbine's rotation, thereby powering the compressor on the same shaft as the turbine to achieve pressurization. Below is a detailed introduction to fuel exhaust turbochargers: 1. Classification: Exhaust turbocharging systems are generally divided into two types: constant-pressure turbocharging systems and pulse turbocharging systems. In a constant-pressure turbocharging system, the exhaust from all cylinders of the internal combustion engine is directed into a large exhaust manifold before flowing into the turbine. The exhaust manifold essentially acts as a pressure stabilizer, maintaining a relatively constant gas pressure within the manifold. The pulse turbocharging system is characterized by creating as large a pressure pulse as possible in the exhaust pipe. To achieve this, the exhaust branches are made thin and short, and the turbine is placed as close as possible to the internal combustion engine cylinders. 2. Utilization: Modern exhaust turbochargers are mass-produced, serialized products. Manufacturers categorize them into several basic models based on the power range of the internal combustion engine. By appropriately modifying the structural dimensions of the compressor and turbine, as well as the housing structure, variant products can be created to meet the turbocharging requirements of various internal combustion engines. An exhaust turbocharged internal combustion engine is essentially a compound engine, where the flow characteristics of the compressor match the flow rate required by the internal combustion engine under various operating conditions, and the energy needed to drive the turbine is balanced with the energy provided by the internal combustion engine's exhaust.
