Patent classifications
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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F02B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
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31/00
Modifying induction systems for imparting a rotation to the charge in the cylinder
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F02B31/04
by means within the induction channel, e.g. deflectors
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F02B31/06
Movable means, e.g. butterfly valves
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