CPC Main Group
F02B 31/00 Modifying induction systems for imparting a rotation to the charge in the cylinder (air intakes or induction systems for internal-combustion engines F02M35/10)
3 direct subcodes
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- F02B 31/02 in engines having inlet valves arranged eccentrically to cylinder axis (F02B31/08 takes precedence)
- F02B 31/04 by means within the induction channel, e.g. deflectors
- F02B 31/08 having multiple air inlets