123 / | HD | INTERNAL-COMBUSTION ENGINES |
319 | DF | ENGINE SPEED REGULATOR {16} |
349 | .~ Having condition responsive means with engine being part of a closed feedback system (e.g., cruise control) {4} | |
350 | DF | .~.~> Electrical sensing or regulating {3} |
363 | DF | .~.~> Mechanical sensor or regulator {3} |
378 | DF | .~.~> Fluidic sensor or regulator {6} |
394 | DF | .~.~> By combustion air or air-fuel mixture cutoff |