SD32 SD22 bulldozer NT855 engine turbocharger 3529040

SD32 SD22 Bulldozer NT855 Engine Turbocharger 3529040

A bulldozer engine turbocharger is a key component that utilizes the energy of exhaust gases to compress intake air, increasing engine power and efficiency. It works by using exhaust gases to drive a turbine, which in turn drives a coaxial compressor impeller to compress air, thereby increasing the amount of oxygen entering the cylinders and resulting in more complete fuel combustion. This significantly improves power output without increasing engine displacement.

Core Functions and Principles

The main function of a turbocharger is to increase intake pressure, thereby increasing the amount of oxygen entering the combustion chamber per unit time, thus increasing engine power and torque. Its working principle is based on exhaust gas dynamics: the high-temperature, high-pressure exhaust gases from the engine impact the turbine impeller, which rotates to drive the coaxial compressor impeller, compressing the air and sending it into the cylinders. This process effectively improves fuel efficiency and reduces exhaust emissions.

Typical Applications and Advantages

Turbochargers are particularly important in construction machinery such as bulldozers because these machines require high loads and long operating times. Turbocharging technology allows engines to achieve greater power with a smaller displacement, meeting heavy-duty requirements while reducing fuel consumption. For example, the power of a tractor engine can be increased by 30%-40% after turbocharging.