Re: Crankcase Ventilation

Posted by Tim Cole On 2023/1/28 9:41:20

The system requires the carburation be calibrated because 20% of the air intake at idle is from the PCV. EGR is 7% during cruise.

Having PCV and EGR improve engine longevity greatly which is why the Clean Air Act was not ruled unconstitutional when the auto makers fought it. When the customer is benefiting from a law it can't be ruled wrongful seizure of property (cash). As Iacocca pointed out though, requiring each manufacturer to develop their own systems rather than a cooperative system was a total economic waste paid for by the customer. That was the doings of Congress and a perversion of anti-trust laws.

Those systems were known in the 1930's, but automakers did not want the cars lasting longer.