123 / | HD | INTERNAL-COMBUSTION ENGINES |
434 | DF | CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29} |
445 | DF | .~ Fuel injection system {5} |
446 | DF | .~.~ Fuel pump flow regulation {4} |
457 | DF | .~.~.~ Regulating means adjusts fuel pressure {9} |
464 | .~.~.~.~ Temperature responsive |