A turbocharger, or turbo, is a gas compressor used for forced-induction of an internal combustion engine. Like a supercharger, the purpose of a turbocharger is to increase the mass of air entering the engine to create more power. However, a turbocharger differs in that the compressor is powered by a turbine driven by the engine's own exhaust gases.

A turbocharger, often called a turbo, is a small radial fan pump driven by the energy of the exhaust gases of an engine. A turbocharger consists of a turbine and a compressor on a shared shaft. The turbine section of a turbocharger is a heat engine in itself. It converts the heat energy from the exhaust to power, which then drives the compressor, compressing ambient air and delivering it to the air intake manifold of the engine at higher pressure, resulting in a greater mass of air entering each cylinder. In some instances, compressed air is routed through an intercooler before introduction to the intake manifold. Because a turbocharger is a heat engine, and is converting otherwise wasted exhaust heat to power, it compresses the inlet air to the engine more efficiently than a supercharger.

We can provide turbochargers of KKK, Garrett, Hitachi, IHI, Komatsu, MHI, Schwitzer, Toyota, Caterpillar, Cummins, man, perkins, Renault etc,

Maintenance and repair of turbochargers usually needs to replace some parts, especially those parts in the module of turbos----thrust bearing, journal bearing, seal ring, piston ring, snap ring, fix screw, locknut, thrust ring, etc.
 
This is our dominant product, We can provide many models of turbo kits packed in a special box. Each kind of components combined in the turbo kits is selected from different professional processing factories and will go through strict inspection by the technicians. Our conventional products are mainly in middle level e.g.:
K03,K04,T04B,GT17,GT25,GT42,T2/T25/T28,RHB5,RHC7,RHF5,HX35,HX50TD04,TD05,etc.
 
For clients requesting for our turbo kits, it is strongly recommended to provide us the model and assembly No.. If you have some special requirements for a certain single component, please specify your requests and technical parameters.
 
Notice: The price can be different according to the kinds of components. So if you have special requirement on turbo kits, please tell us what kinds of components you’d like to have in kits or offer us a photo. We can give you a quote against your request.

The center hub rotating assembly (CHRA) houses the shaft which connects the compressor impeller and turbine. It also must contain a bearing system to suspend the shaft, allowing it to rotate at very high speed with minimal friction. For instance, in automotive applications the CHRA typically uses a thrust bearing or ball bearing lubricated by a constant supply of pressurized engine oil. The CHRA may also be considered "water cooled" by having an entry and exit point for engine coolant to be cycled. Water cooled models allow engine coolant to be used to keep the lubricating oil cooler, avoiding possible oil coking from the extreme heat found in the turbine. The development of air-foil bearings has removed this risk.

A thrust bearing is a particular type of rotary bearing. Like other rotary bearings they permit rotation between parts, but they are designed to support a high axial load while doing this.

Thrust bearing plays an important role in turbocharger performance. It endures the axial force which is caused by the unbalance between turbine wheel gas force and compressor wheel air force. Thrust bearing is usually fixed at compressor end. It not only has a direct impact on the working life and reliability of turbocharger but also influences the mechanical efficiency of turbocharger.  

We have the largest thrust bearing factory in China

Journal bearing ids one of the most important and easily damaged parts of turbocharger. It not only guarantees the rotor components works stably at high speed but also ensure their axes move at certain orbit. It endures the gravity of rotor components, centrifugal force caused by the unbalance between compressor and turbine wheel and imposed loading that is brought to bearing when engine is vibrating.

It is the support body of piston ring/seal ring.

Rotor components endure the most load and influence the performance, structure reliability and working life of turbocharger directly.

Rotor components endure the most load and influence the performance, structure reliability and working life of turbocharger directly.

The turbine and impeller wheel sizes also dictate the amount of air or exhaust that can be flowed through the system, and the relative efficiency at which they operate. Generally, the larger the turbine wheel and compressor wheel, the larger the flow capacity. Measurements and shapes can vary, as well as curvature and number of blades on the wheels.

The turbocharger has four main components. The turbine (almost always a radial turbine) and impeller/compressor wheels are each contained within their own folded conical housing on opposite sides of the third component, the center housing/hub rotating assembly (CHRA).

The housings fitted around the compressor impeller and turbine collect and direct the gas flow through the wheels as they spin. The size and shape can dictate some performance characteristics of the overall turbocharger. Often the same basic turbocharger assembly will be available from the manufacturer with multiple housing choices for the turbine and sometimes the compressor cover as well. This allows the designer of the engine system to tailor the compromises between performance, response, and efficiency to application or preference. Twin-scroll designs have two valve-operated exhaust gas inlets, a smaller sharper angled one for quick response and a larger less angled one for peak performance.

Bearing housing is the support body of rotor components in a turbocharger. It is connected to compressor housing and turbine housing to form the completed turbocharger. Apart from bearing the mechanical load of rotor components, it also endures the heat load from the turbine end.

The turbocharger has four main components. The turbine (almost always a radial turbine) and impeller/compressor wheels are each contained within their own folded conical housing on opposite sides of the third component, the center housing/hub rotating assembly (CHRA).

The housing fitted around the compressor impeller and turbine collect and direct the gas flow through the wheels as they spin. The size and shape can dictate some performance characteristics of the overall turbocharger. Often the same basic turbocharger assembly will be available from the manufacturer with multiple housing choices for the turbine and sometimes the compressor cover as well. This allows the designer of the engine system to tailor the compromises between performance, response, and efficiency to application or preference. Twin-scroll designs have two valve-operated exhaust gas inlets, a smaller sharper angled one for quick response and a larger less angled one for peak performance.

A seal plate or insert is an important component of air seal system. It avoids the air from compressor end and the gas from turbine end leaking to the bearing bore of the bearing housing.

By spinning at a relatively high speed the compressor turbine draws in a large volume of air and forces it into the engine. As the turbocharger's output flow volume exceeds the engine's volumetric flow, air pressure in the intake system begins to build. The speed at which the assembly spins is proportional to the pressure of the compressed air and total mass of air flow being moved. Since a turbo can spin to RPMs far beyond what is needed, or of what it is safely capable of, the speed must be controlled. A wastegate is the most common mechanical speed control system, and is often further augmented by an electronic or manual boost controller. The main function of a wastegate is to allow some of the exhaust to bypass the turbine when the set intake pressure is achieved. Passenger cars have wastegates that are integral to the turbocharger.

Piston ring plays a role of sealing, so it is also called seal ring. The common material for piston ring is alloy cast iron or nodular cast iron, such as QT60-2. Sometimes, it also uses high quality carbon structural steel, such as 65Mn.