State four advantages of CRDI system.

 State four advantages of CRDI system. 
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2 Answers

Answer :

Answer: Advantages of CRDI system 

1. Separation of pressure generation and injection allowing flexibility in controlling both the injection rates and timing of CRDI

2. In CRDI system, Fuel pressure does not depend on the engine speed and load conditions

3. In CRDI, High injection pressures (about 1500 bar) and good spray preparations are possible even at low engine speeds and loads.

4. Reduced noise.

5. Pollutants are reduced.

6. In CRDI system, Fuel pump operates with low drive torque.

7. Increased fuel efficiency.

8. More stability.

OR

1. Deliver 25% more power and torque than the normal direct injection engine.

2. Lower levels of noise and vibration.

3. Lower emissions.

4. Lower fuel consumption.

5. Improved performance.

6. Improved drivability
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Answer :

Advantages of CRDI System: 

1. Deliver 25% more power and torque than the normal direct injection engine.

2. Lower levels of noise and vibration.

3. Lower emissions.

4. Lower fuel consumption.

5. Improved performance.

6. Improved drivability

OR

Answer: Advantages of CRDI system

1) CRDI engine has lower emission. So, it meets latest emission norms. Finely atomized fuel results in an efficient air-fuel mixing & reduced particulate emissions.

2) It gives improved fuel economy.

3) CRDI engine has lower engine noise level. CRDI engines have capability to deliver stable, small pilot injections can be used for decreased NOx emissions and noise.

4) Separation of pressure generation and injection allowing flexibility in controlling both the injection rates and timing of CRDI.

5) In CRDI system, Common rail pressure does not depend on the engine speed and load conditions.

6) In CRDI, High injection pressures (about 1500 bar) and good spray preparations are possible even at low engine speeds and loads.

7) In CRDI system, Fuel pump operates with low drive torque. 
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