turbocharger

WHY TURBOCHARGER

Power developed by an engine is related to air consumption. More air with fuel is equal to more engine power. We can get more air to the engine with the help of turbocharger.

The following table shows why turbocharger need and how we can get more power with same engine by adding turbocharger.

Description	MAX.HP	HP Increase %
Without Turbocharger	120HP	—-
With Turbocharger	160HP	33%
Turbo with Inter cooler	180HP	54%

 

HOW A TURBO WORKS

1. The turbine housing is bolted to the exhaust manifold of the engine.

2. The waste gases from the engine are used to rotate the turbine wheel which is housed in the turbine casing.

3. The turbine wheel is connected to a common shaft which in turn rotates a compressor wheel.

4. Once the waste gases have passed through the blades of the wheel it leaves the turbine housing via the exhaust outlet area.

5. The more gases passed through the turbine housing, the faster turbine wheel rotates.

6. As the turbine wheel increases speed, so does the compressor wheel. This creates a sucking process and pulls air into the compressor from the atmosphere.

7. The faster the wheels spin, the more air is sucked in.

8. As the air is sucked into the compressor housing, it is forced to the engine.

9. In this process sometimes the air will get 200deg of heat.

10. The oil used in the turbocharger is the same as that used for your engine.

11. The oil is used as both a lubricant and a coolant.

12. To keep the air cooled intercooler was introduced between turbocharger and engine.

 

ADVANTAGES OF A TURBO

The advantage of modern turbocharged engine, over a naturally aspirated engine of identical power output is as follows:

• Lower fuel consumption
• Lower emission
• Better torque characteristics
• Lower weight and a smaller engine package
• Lower engine noise
• Altitude compensation.

As a result, turbochargers contribute significantly to the protection of the environment and the better utilization of energy resources.

 

WASTEGATE OPERATION

To meet the demands of the engine at low speeds, full boost pressure should be available. At the same time, at high speeds, this boost pressure needs to be controlled to achieve the required engine performance. For controlling the turbo speed introduced wategate in turbocharger. when the engine speed is crossing the limits the inlet air (blue colored ) pressure will go through the pipe and pushes the spring chamber to open the waste gate valve means the exhaust waste gases will enter into the engine cylinders through waste gate consequently  the engine speed will go down due to waste exhaust gases were entered instead of fresh air.

 

OPERATION RECOMMENDATIONS

• Engine should not be put under full load immediately after start. We recommend the engine to be run at idling speed for a short time (min. 60 seconds). Warm up the engine under medium speed and then load.
• After the engine has been operating at full load for a longer period of time, we recommend a short idling time before switching off (min 60 seconds).

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