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REPORT ON BMW B47 ENGINE OVERVIEW WORKSHOP

Introduction

The four quadrants of blue and white, has been regarded as one of the finest car logos in the history of graphics design. Team XLR8 opened up the opportunity for motorsports enthusiasts to grasp the elegance, excellence and charm of the glossy BMW B47 Twin Turbo engine.

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Figure 1: Blue and White streak of perfection

An Overview of the Session

On 22nd February 2020, Team XLR8 hosted a workshop featuring the insights of a BMW B47 engine. The core members of Jadavpur University Motorsports Club were the chief spokespersons of the workshop and our faculty advisor, Professor Sourav Sarkar supervised the live engine demonstration.

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The day started with the much-awaited demonstration of the engine in the Heat Power Laboratory of the university. The participants were provided with a set of quiz questions, asking them to identify the parts of the engine. The atmosphere became interactive and engaging from the very beginning.

Figure 2: The Chairperson Abhishek Pal interacting with the participants

The whole workshop had six theoretical sessions. Abhishek Pal, The Chairperson of JUMSC, enlightened us with an overview of the engine mechanics.  Arghya Chatterjee, the Club Secretary, explained the fundamentals of the Electronic Control Unit of the engine. Mujtaba Illyas, the vice Chairperson highlighted the key points of the intake and exhaust systems of the engine. Sanket Gupta, the Powertrain Head of Team XLR8, showed us the working of the Fuel System in the engine, while Anuj Bhakat, another core member of Team XLR8, delivered lectures about the cooling system and its importance in the engine.

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Figure 3: The engine

It was a 2.0 L displacement engine with a compression ratio of 16.5: l. The block and head material of the engine was made up of aluminium alloy. It was a 4-cylinder diesel engine with common rail direct injection fuel system, with a twin-powered turbocharger for boosting the power of the engine. Also, it has a dual overhead camshaft with 4 valves per cylinder. It was equipped with a water-cooled cooling system. The robust engine was designed to meet Euro 6 emission standards. The power output and the torque output ranges from 85-160 kW and 270-450 Nm respectively. The theoretical sessions were aimed at imparting the basic structural design of the engine, with its various systems.

Some Snapshots of the Workshop
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Figure 4: Participants of the workshop trying to identify the parts of the engine

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Figure 6: Theoretical Session

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Figure 5: In the midst of the live demonstration

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Figure 7: Team XLR8 Core Members mentoring the students

Live Demonstration

After the theoretical sessions, the students were once again taken for a live demonstration of the engine. Professor Sourav Sarkar helped us identify the different parts like Cylinder head gasket, Oil sump, Turbo-chargers and DDE. We visualized the complete air intake and exhaust system, starting with components like Throttle Valve, mixing tube and Vacuum hose, and ending with Bypass Valve, Catalytic

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Figure 8: Professor Sourav Sarkar demonstrating the parts of the engine

Converters and Silencers. We were also shown the fuel and cooling system including different pressure pumps and air compressors. With that, the workshop came to a close and the students had an enriching experience to remember.

Conclusion

Bridging the gap between theory and practical implementation always remains a challenge. Team XLR8, with an interactive workshop on BMW B47 Twin Turbo engine, sought to make a tryst of theory and practical model. The working of an engine, the intricacies of the systems and the knowledge imparted in weekly sessions gained life at the live demonstration. 

A bunch of faces brimming with satisfaction at the end of the day is what the team got as the reward—the joy of labour, the sweet success of efforts.

Report written by:

Rounak Sarkar

(Suspension Lead, Chassis Member)

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