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Views: 0 Author: Site Editor Publish Time: 2025-09-03 Origin: Site
A turbocharger mainly consists of a turbine and a compressor. The exhaust gas emitted by the engine contains a certain amount of energy, which drives the impeller inside the turbine to rotate. The turbine then drives the compressor impeller to rotate. The compressor impeller compresses the air delivered through the air filter pipeline, increasing its pressure and density before sending it into the cylinder. This make the engine to burn fuel more sufficient, thereby increasing the output power.
Due to the long-term high-load operation of heavy-duty trucks, their turbochargers usually use high-temperature-resistant materials. For example, the turbine end adopts nickel-based alloys or ceramic coatings to withstand the continuous high-temperature exhaust gas (above 900°C). At the same time, they are equipped with variable geometry turbines (VGT). By adjusting the angle of the turbine blades, VGT optimizes low-speed torque and high-speed efficiency, reduces turbo lag, and adapts to the needs of frequent start-stop and uphill driving. In addition, heavy-duty truck turbochargers are equipped with high-flow compressors that can match large-displacement diesel engines and provide a higher boost pressure of 2.0-3.5 bar, ensuring power output during heavy-load operation.
As one of the world's largest independent engine manufacturers, Cummins produces turbochargers with stable quality and excellent fuel efficiency.
It is the first domestic enterprise independently developing turbochargers for heavy-duty trucks and high-performance valves in China, with its products excelling in service life and durability.
Garrett boasts advanced turbocharging technology, and its two-stage series turbocharging system is widely used, which can reduce fuel consumption, increase power density, and extend the normal operation time of vehicles.
Alfred Turbo designs and manufactures turbochargers based on the specific model and performance requirements of the engine, ensuring perfect matching with the engine. This guarantees sufficient air intake, thereby enhancing engine power, making uphill driving easier, and improving fuel efficiency. The turbine is made of K418 nickel alloy, ensuring reliable quality and sturdiness.
The high-temperature and high-pressure exhaust gas (with a temperature up to over 900°C) generated after engine combustion enters the turbine housing of the turbocharger through the exhaust pipe, impacts the internal turbine blades, and drives the turbine to rotate at high speed (rotational speed can reach 100,000-200,000 rpm).
When the compressor impeller rotates, it sucks in external air from the air filter and compresses the air through centrifugal force, significantly increasing the pressure and density of the air (the boost pressure of heavy-duty trucks is usually 2.0-3.5 bar).
The compressed high-pressure air is cooled by an intercooler (to reduce temperature and further increase density) and then sent into the engine cylinder through the intake manifold. At this time, the cylinder can hold more air, and with more fuel injection, the fuel can burn more fully, thereby significantly improving the engine's power and torque to meet the high-intensity operating conditions of heavy-duty trucks such as heavy loads and uphill driving.
OEM turbochargers can better meet the engine's emission requirements, reducing the emissions of carbon dioxide and nitrogen oxides, which is beneficial to environmental protection.
OEM turbochargers usually have a comprehensive after-sales service system, which can provide users with professional pre-sales and after-sales services, including installation guidance and maintenance, effectively improving the vehicle's attendance rate.
OEM turbocharger manufacturers invest a large amount of resources in research and development, using advanced computer simulation technology to optimize the turbine blade shape and air passage design, significantly improving the efficiency and response speed of the turbocharger.
The price of OEM turbochargers is usually several times higher than that of aftermarket turbochargers, which is the main reason why some users choose aftermarket parts.
Domestic aftermarket turbocharger manufacturers strictly follow international quality management systems, conducting strict inspections on every link in the production process, which greatly reduces the defective rate. For example, Alfredturbo turbochargers use high-quality materials and undergo strict "three high" tests (high temperature, high altitude, and high humidity), allowing them to operate normally even in harsh environments. At the same time, in terms of material selection, they also align with international high standards, using high-strength and high-temperature-resistant alloy materials to ensure that the turbocharger can maintain high reliability and long service life in high-temperature and high-pressure environments.
Turbochargers made in China have obvious advantages in price, which can help consumers save costs. At the same time, their performance is not inferior to similar foreign products, performing well in providing sufficient boost pressure and improving engine power output, thus having high cost-effectiveness.
Some domestic turbocharger manufacturers started with motorcycle engine manufacturing, gradually expanding to the processing of automotive turbocharger parts. They also laid out businesses such as new energy vehicle parts through acquisitions and the establishment of subsidiaries, forming a diversified industrial structure. This enables them to better respond to market changes and meet the needs of different customers.
The design of turbochargers produced by domestic manufacturers fully considers the actual conditions of the domestic market, enabling them to work well with different types of engines. They have better adaptability to domestic operating conditions and usage environments, providing vehicle manufacturers and owners with more convenient installation and usage experiences.
Original Equipment (OE) turbochargers and aftermarket turbochargers differ in terms of quality, performance, price, and other aspects. A comprehensive consideration of multiple factors is required when making a choice.
OE turbochargers are produced by suppliers designated by vehicle manufacturers. They usually adopt high-quality materials and advanced manufacturing processes, and undergo rigorous testing and quality control. This enables them to better adapt to the working conditions of the engine and ensures higher reliability. In contrast, the quality of aftermarket turbochargers varies greatly. Some universal aftermarket turbochargers produced by well-known manufacturers like Alfredturbo which have good quality, but aftermarket parts made by unknown small workshops may have serious quality issues. These issues include frequent oil leakage, turbine shaft burning, and shaft breakage, and their service life is also relatively short.
OE turbochargers are designed and developed based on the specific model and performance requirements of the vehicle's engine. They can be accurately matched with the engine management system, which fully leverages the engine's performance advantages and achieves optimal power output and fuel economy.
Due to the high costs of research and development, production, and quality control, OE turbochargers are usually relatively expensive. Aftermarket turbochargers, on the other hand, are more affordable, which makes them attractive to car owners with limited budgets.
OE turbochargers typically come with a comprehensive sales and after-sales service system. This system can provide users with professional pre-sales consultation and after-sales service. If problems arise during use, they can be resolved in a timely and effective manner. The after-sales service for aftermarket turbochargers may be relatively weak. For choosing a right supplier will be very important. When problems occur with the product, they can offer timely after-sales support.
If the vehicle is still within the warranty period, using an OE turbocharger can ensure that the vehicle's warranty policy remains unaffected. However, using an aftermarket turbocharger may be regarded by the manufacturer as unauthorized modification, resulting in the loss of warranty eligibility. This point is particularly important for car owners whose vehicles are still under warranty.
If the budget is sufficient and you want to ensure the vehicle's performance, reliability, and warranty rights, an OE turbocharger is a better choice. If the budget is limited, when choosing an aftermarket turbocharger, you must carefully select products from well-known brands like Alfredturbo. with quality guarantees.
