BMW may have cracked one of the biggest challenges facing internal combustion engines: soot buildup.
A newly filed patent outlines a solution that promises to enhance engine efficiency while reducing harmful soot deposits.
Tackling Soot at Its Source
Soot accumulation on intake valves can lead to reduced performance and increased fuel consumption over time.
Traditional methods, which rely on pressure differences to transport air and oil vapors from the crankcase to the intake manifold, are prone to allowing soot particles to settle.
BMW’s patent introduces a more sophisticated system that utilizes a venturi pump to mix crankcase vapors with fresh air.
Additionally, the system includes a separator to remove oil from the vapors. The oil is returned to the sump, while the cleaned gases are vented away, significantly reducing the formation of soot deposits.
Currently, soot buildup requires costly maintenance, often involving intensive cleaning or replacing engine components.
By addressing the root cause, BMW’s technology could save drivers both time and money, reducing the need for expensive workshop visits.
What’s Next?
The patent, intercepted by Carmoses and filed with the European Patent Authority, doesn’t specify which BMW models will incorporate the technology or whether it will be optional. However, it represents an important step in improving internal combustion engines, both in performance and environmental impact.
While the automotive industry increasingly focuses on electric vehicles, BMW’s innovation highlights how traditional engine technology can still evolve to become cleaner and more efficient. This advancement demonstrates the brand’s commitment to refining combustion engines alongside its push for electrification.
The patent is now under review by the European Patent Authority, and it remains to be seen how quickly this promising technology will make its way to production.
