Can a Clutch Plate Assembly Connect an Engine to a Dynamometer?

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SUMMARY

Using a Clutch Plate assembly in conjunction with a drive shaft to connect an engine to a dynamometer is feasible. However, decoupling the engine from the dynamometer can lead to rapid increases in engine RPM. It is crucial to diagnose the underlying issue causing the accelerator pedal to have no effect on RPM, as this may relate to the engine's governor settings regulating fuel flow or torque. Additionally, assessing the nature of shaft vibrations—whether transverse or angular—and ensuring the coupling is balanced are essential steps in this process.

PREREQUISITES
  • Understanding of CRDi engine mechanics
  • Knowledge of dynamometer operation
  • Familiarity with clutch mechanisms and their applications
  • Basic principles of vibration analysis in rotating systems
NEXT STEPS
  • Investigate the specific governor settings of the CRDi engine
  • Learn about the principles of engine RPM control and fuel flow regulation
  • Research methods for diagnosing and balancing shaft vibrations
  • Explore the design and function of clutch mechanisms in automotive applications
USEFUL FOR

Engineers, automotive technicians, and anyone involved in engine testing and dynamometer operations will benefit from this discussion.

Omkar Bhalerao
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Can I use a Clutch Plate assembly along with drive shaft to connect Engine & dynamometer?

I am facing an issue where in CRDi engine, at a position of accelerator pedal RPM is increasing from 1300 to 2000 without any change in accelerator pedal position. And a lot of vibrations takes place at 1300-1400 RPM range, so in-order to avoid shaft to be subjected to vibrations for longer time, can I use a clutch mechanism to engage and disengage the shaft from engine?
 
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Welcome to PF.

Omkar Bhalerao said:
Can I use a Clutch Plate assembly along with drive shaft to connect Engine & dynamometer?
Yes. But if you decouple the engine from the dynamometer the engine RPM can rise very rapidly.

Different engines have different governors. You need to identify the reason why the accelerator pedal does not control engine RPM. It may be arranged to regulate total fuel flow or torque, rather than RPM.

Are the shaft vibrations transverse or angular? Is the coupling balanced?
 

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