A turbocharger is actually an air compressor that compresses air through the cooperation between parts (Cartridge, Compressor Housing, Turbine Housing…) to increase the intake air volume. It uses the inertial momentum of the exhaust gas from the engine to drive the turbine in the turbine chamber, which drives the coaxial compressor wheel. The compressor wheel presses the air sent by the air filter pipe to pressurize it into the cylinder. When the engine speed increases, the exhaust gas discharge speed, and the turbo speed also increase synchronously, and the compressor wheel compresses more air into the cylinder. The pressure and density of the air increase to burn more fuel. Increase the amount of fuel and adjust the engine speed accordingly. The output power of the engine can be increased.
Therefore, In the eyes of turbocharger manufacturers, turbochargers are relatively “exquisite”, and compared with ordinary naturally aspirated engines, their requirements for oil products are also greater. Part of the oil burning phenomenon is mostly due to the damage of the oil seal between it and the intake pipe, because the main shaft of the turbocharger adopts a floating design, and the entire main shaft relies on lubricating oil for heat dissipation and lubrication. , because of its high viscosity and poor fluidity, it will cause the main rotating shaft of the floating turbine to fail to lubricate and dissipate heat normally. Choose engine oil with good oil quality, its oxidation resistance, wear resistance, high temperature resistance, lubrication and heat dissipation will be better.
Using turbochargers should pay special attention to timely replacement of oil filters and air filters, and keep the turbo clean. Especially for truck turbos and other-heavy application turbos, the fit gap between the turbocharger shaft and the shaft sleeve is very small. If the used oil is not pure or the oil filter is not clean, it will cause excessive wear of the turbocharger.
Post time: Aug-25-2023