Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling (controlling or rendering inoperative by varying inlet or exhaust valve operating characteristics F02D13/00)

Child Classifications

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• F02D 17/02 Cutting-out (cutting-out engines in multiple engine arrangements F02D25/04)
• F02D 17/04 rendering engines inoperative or idling, e.g. caused by abnormal conditions (dependent on lubricating conditions F01M1/22; dependent on cooling F01P5/14)