CTI AD-3000-8 Session 3
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- Опубліковано 4 жов 2024
- Session 3 of AD-3000-8 - CTI Virtual Classroom
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If you lift the hood of any newer vehicle, you can easily see that engine technology is getting more and more complex. Access for traditional engine condition tests is more difficult than ever before. Technicians with a good understanding of lab scopes and engine mechanical operation can learn to leverage the power of pressure transducers in their diagnostic routines with the information presented here. Pressure waveform readings from the intake manifold, combustion chamber and the exhaust stream can provide a wealth of information that can make difficult problems easy to find. Using logic and data acquired from multiple points on a vehicle serve like pieces of a puzzle providing answers to the underlying fault.
This course covers the use of both absolute pressure transducers and delta pressure transducers and explains the characteristics and benefits of each type. This diagnostic approach will be demonstrated using real world examples and actual case studies. Each example demonstrates specifics of root cause analysis. Students will leave this class with confidence to invest in the tooling needed to perform pressure testing and analysis to improve their accuracy and efficiency to diagnose today’s vehicles.
Just wow. I've never heard the breakdown of exhaust pulses like this before. Thanks a lot.
Thank You for putting this up to view again. I unfortionitly missed the first 35 minutes of this live... So again thank you.
Really appreciate Brandon and Brin for taking their time to do this for us. Fantastic class.!!!
Another great video Branden. This helped explain patterns that I thought were bad for some reason. Thanks
Great video and fantastic delivery. I love these videos.
This is great stuff. One confusion for me. Are you saying max pressure inside a combusting running cylinder is only around 100psi . ... I would have expected an expanding flame front to produce huge pressures compared to an non-firing cylinder???
What causes the spike in the expansion/powerstroke that occurs before the exhaust valve opens on the combustion waveform taken by Scott Manna? (12:25 of the video)
I would say that, since it's a running engine, it should be the power stroke pressure. Anyway it doesn't make any sense for me that the pressure is lower than the compression itself.